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version 1.11, 2002/08/03 18:47:24
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version 1.108, 2003/10/30 16:20:18
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| # The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
| # (Publication Handler |
|
| # |
# |
| # $Id$ |
# $Id$ |
| # |
# |
|
Line 35 loncoursedata
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Line 34 loncoursedata
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| |
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| =head1 SYNOPSIS |
=head1 SYNOPSIS |
| |
|
| Set of functions that download and process student information. |
Set of functions that download and process student and course information. |
| |
|
| =head1 PACKAGES USED |
=head1 PACKAGES USED |
| |
|
| Apache::Constants qw(:common :http) |
Apache::Constants qw(:common :http) |
| Apache::lonnet() |
Apache::lonnet() |
| |
Apache::lonhtmlcommon |
| HTML::TokeParser |
HTML::TokeParser |
| GDBM_File |
GDBM_File |
| |
|
|
Line 51 package Apache::loncoursedata;
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Line 51 package Apache::loncoursedata;
|
| use strict; |
use strict; |
| use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
| use Apache::lonnet(); |
use Apache::lonnet(); |
| |
use Apache::lonhtmlcommon; |
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use Time::HiRes; |
| |
use Apache::lonmysql; |
| use HTML::TokeParser; |
use HTML::TokeParser; |
| use GDBM_File; |
use GDBM_File; |
| |
|
|
Line 58 use GDBM_File;
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Line 61 use GDBM_File;
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| |
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| =head1 DOWNLOAD INFORMATION |
=head1 DOWNLOAD INFORMATION |
| |
|
| This section contains all the files that get data from other servers |
This section contains all the functions that get data from other servers |
| and/or itself. There is one function that has a call to get remote |
and/or itself. |
| information but isn't included here which is ProcessTopLevelMap. The |
|
| usage was small enough to be ignored, but that portion may be moved |
|
| here in the future. |
|
| |
|
| =cut |
=cut |
| |
|
| # ----- DOWNLOAD INFORMATION ------------------------------------------- |
#################################################### |
| |
#################################################### |
| |
|
| =pod |
=pod |
| |
|
| =item &DownloadClasslist() |
=item &get_sequence_assessment_data() |
| |
|
| Collects lastname, generation, middlename, firstname, PID, and section for each |
AT THIS TIME THE USE OF THIS FUNCTION IS *NOT* RECOMMENDED |
| student from their environment database. The list of students is built from |
|
| collecting a classlist for the course that is to be displayed. |
|
| |
|
| =over 4 |
Use lonnavmaps to build a data structure describing the order and |
| |
assessment contents of each sequence in the current course. |
| |
|
| Input: $courseID, $c |
The returned structure is a hash reference. |
| |
|
| $courseID: The id of the course |
{ title => 'title', |
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symb => 'symb', |
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src => '/s/o/u/r/c/e', |
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type => (container|assessment), |
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num_assess => 2, # only for container |
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parts => [11,13,15], # only for assessment |
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response_ids => [12,14,16], # only for assessment |
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contents => [........] # only for container |
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} |
| |
|
| $c: The connection class that can determine if the browser has aborted. It |
$hash->{'contents'} is a reference to an array of hashes of the same structure. |
| is used to short circuit this function so that it doesn't continue to |
|
| get information when there is no need. |
|
| |
|
| Output: \%classlist |
Also returned are array references to the sequences and assessments contained |
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in the course. |
| |
|
| \%classlist: A pointer to a hash containing the following data: |
|
| |
|
| -A list of student name:domain (as keys) (known below as $name) |
=cut |
| |
|
| -A hash pointer for each student containing lastname, generation, firstname, |
#################################################### |
| middlename, and PID : Key is $name.'studentInformation' |
#################################################### |
| |
sub get_sequence_assessment_data { |
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my $fn=$ENV{'request.course.fn'}; |
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## |
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## use navmaps |
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my $navmap = Apache::lonnavmaps::navmap->new(); |
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if (!defined($navmap)) { |
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return 'Can not open Coursemap'; |
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} |
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# We explicity grab the top level map because I am not sure we |
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# are pulling it from the iterator. |
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my $top_level_map = $navmap->getById('0.0'); |
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# |
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my $iterator = $navmap->getIterator(undef, undef, undef, 1); |
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my $curRes = $iterator->next(); # Top level sequence |
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## |
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## Prime the pump |
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## |
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## We are going to loop until we run out of sequences/pages to explore for |
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## resources. This means we have to start out with something to look |
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## at. |
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my $title = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
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my $symb = $top_level_map->symb(); |
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my $src = $top_level_map->src(); |
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my $randompick = $top_level_map->randompick(); |
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# |
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my @Sequences; |
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my @Assessments; |
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my @Nested_Sequences = (); # Stack of sequences, keeps track of depth |
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my $top = { title => $title, |
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src => $src, |
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symb => $symb, |
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type => 'container', |
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num_assess => 0, |
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num_assess_parts => 0, |
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contents => [], |
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randompick => $randompick, |
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}; |
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push (@Sequences,$top); |
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push (@Nested_Sequences, $top); |
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# |
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# We need to keep track of which sequences contain homework problems |
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# |
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my $previous_too; |
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my $previous; |
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while (scalar(@Nested_Sequences)) { |
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$previous_too = $previous; |
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$previous = $curRes; |
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$curRes = $iterator->next(); |
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my $currentmap = $Nested_Sequences[-1]; # Last one on the stack |
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if ($curRes == $iterator->BEGIN_MAP()) { |
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if (! ref($previous)) { |
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$previous = $previous_too; |
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} |
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if (! ref($previous)) { |
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next; |
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} |
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# get the map itself, instead of BEGIN_MAP |
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$title = $previous->title(); |
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$title =~ s/\:/\&\#058;/g; |
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$symb = $previous->symb(); |
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$src = $previous->src(); |
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# pick up the filename if there is no title available |
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if (! defined($title) || $title eq '') { |
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($title) = ($src=~/\/([^\/]*)$/); |
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} |
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$randompick = $previous->randompick(); |
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my $newmap = { title => $title, |
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src => $src, |
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symb => $symb, |
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type => 'container', |
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num_assess => 0, |
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randompick => $randompick, |
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contents => [], |
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}; |
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push (@{$currentmap->{'contents'}},$newmap); # this is permanent |
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push (@Sequences,$newmap); |
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push (@Nested_Sequences, $newmap); # this is a stack |
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next; |
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} |
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if ($curRes == $iterator->END_MAP()) { |
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pop(@Nested_Sequences); |
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next; |
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} |
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next if (! ref($curRes)); |
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next if (! $curRes->is_problem());# && !$curRes->randomout); |
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# Okay, from here on out we only deal with assessments |
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$title = $curRes->title(); |
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$title =~ s/\:/\&\#058;/g; |
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$symb = $curRes->symb(); |
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$src = $curRes->src(); |
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my $parts = $curRes->parts(); |
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my %partdata; |
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foreach my $part (@$parts) { |
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my @Responses = $curRes->responseType($part); |
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my @Ids = $curRes->responseIds($part); |
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$partdata{$part}->{'ResponseTypes'}= \@Responses; |
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$partdata{$part}->{'ResponseIds'} = \@Ids; |
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# Count how many responses of each type there are in this part |
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foreach (@Responses) { |
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$partdata{$part}->{$_}++; |
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} |
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} |
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my $assessment = { title => $title, |
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src => $src, |
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symb => $symb, |
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type => 'assessment', |
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parts => $parts, |
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num_parts => scalar(@$parts), |
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partdata => \%partdata, |
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}; |
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push(@Assessments,$assessment); |
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push(@{$currentmap->{'contents'}},$assessment); |
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$currentmap->{'num_assess'}++; |
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$currentmap->{'num_assess_parts'}+= scalar(@$parts); |
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} |
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$navmap->untieHashes(); |
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return ($top,\@Sequences,\@Assessments); |
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} |
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|
| -A hash pointer to each students section data : Key is $name.section |
sub LoadDiscussion { |
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my ($courseID)=@_; |
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my %Discuss=(); |
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my %contrib=&Apache::lonnet::dump( |
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$courseID, |
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$ENV{'course.'.$courseID.'.domain'}, |
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$ENV{'course.'.$courseID.'.num'}); |
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|
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#my %contrib=&DownloadCourseInformation($name, $courseID, 0); |
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|
| =back |
foreach my $temp(keys %contrib) { |
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if ($temp=~/^version/) { |
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my $ver=$contrib{$temp}; |
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my ($dummy,$prb)=split(':',$temp); |
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for (my $idx=1; $idx<=$ver; $idx++ ) { |
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my $name=$contrib{"$idx:$prb:sendername"}; |
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$Discuss{"$name:$prb"}=$idx; |
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} |
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} |
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} |
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|
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return \%Discuss; |
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} |
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|
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################################################ |
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################################################ |
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|
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=pod |
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|
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=item &GetUserName(username,userdomain) |
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|
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Returns a hash with the following entries: |
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'firstname', 'middlename', 'lastname', 'generation', and 'fullname' |
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|
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'fullname' is the result of &Apache::loncoursedata::ProcessFullName. |
| |
|
| =cut |
=cut |
| |
|
| sub DownloadClasslist { |
################################################ |
| my ($courseID, $lastDownloadTime, $c)=@_; |
################################################ |
| my ($courseDomain,$courseNumber)=split(/\_/,$courseID); |
sub GetUserName { |
| my %classlist; |
my ($username,$userdomain) = @_; |
| |
$username = $ENV{'user.name'} if (! defined($username)); |
| my $modifiedTime = &GetFileTimestamp($courseDomain, $courseNumber, |
$userdomain = $ENV{'user.domain'} if (! defined($username)); |
| 'classlist.db', |
my %userenv = &Apache::lonnet::get('environment', |
| $Apache::lonnet::perlvar{'lonUsersDir'}); |
['firstname','middlename','lastname','generation'], |
| |
$userdomain,$username); |
| if($lastDownloadTime ne 'Not downloaded' && |
$userenv{'fullname'} = &ProcessFullName($userenv{'lastname'}, |
| $lastDownloadTime >= $modifiedTime && $modifiedTime >= 0) { |
$userenv{'generation'}, |
| $classlist{'lastDownloadTime'}=time; |
$userenv{'firstname'}, |
| $classlist{'UpToDate'} = 'true'; |
$userenv{'middlename'}); |
| return \%classlist; |
return %userenv; |
| } |
} |
| |
|
| %classlist=&Apache::lonnet::dump('classlist',$courseDomain, $courseNumber); |
################################################ |
| my ($checkForError)=keys (%classlist); |
################################################ |
| if($checkForError =~ /^(con_lost|error|no_such_host)/i) { |
|
| return \%classlist; |
|
| } |
|
| |
|
| foreach my $name (keys(%classlist)) { |
=pod |
| if($c->aborted()) { |
|
| $classlist{'error'}='aborted'; |
=item &ProcessFullName() |
| return \%classlist; |
|
| } |
|
| |
|
| my ($studentName,$studentDomain) = split(/\:/,$name); |
Takes lastname, generation, firstname, and middlename (or some partial |
| # Download student environment data, specifically the full name and id. |
set of this data) and returns the full name version as a string. Format |
| my %studentInformation=&Apache::lonnet::get('environment', |
is Lastname generation, firstname middlename or a subset of this. |
| ['lastname','generation', |
|
| 'firstname','middlename', |
|
| 'id'], |
|
| $studentDomain, |
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| $studentName); |
|
| $classlist{$name.':studentInformation'}=\%studentInformation; |
|
| |
|
| if($c->aborted()) { |
=cut |
| $classlist{'error'}='aborted'; |
|
| return \%classlist; |
|
| } |
|
| |
|
| #Section |
################################################ |
| my %section=&Apache::lonnet::dump('roles',$studentDomain,$studentName); |
################################################ |
| $classlist{$name.':sections'}=\%section; |
sub ProcessFullName { |
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my ($lastname, $generation, $firstname, $middlename)=@_; |
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my $Str = ''; |
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|
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# Strip whitespace preceeding & following name components. |
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$lastname =~ s/(\s+$|^\s+)//g; |
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$generation =~ s/(\s+$|^\s+)//g; |
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$firstname =~ s/(\s+$|^\s+)//g; |
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$middlename =~ s/(\s+$|^\s+)//g; |
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|
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if($lastname ne '') { |
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$Str .= $lastname; |
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$Str .= ' '.$generation if ($generation ne ''); |
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$Str .= ','; |
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$Str .= ' '.$firstname if ($firstname ne ''); |
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$Str .= ' '.$middlename if ($middlename ne ''); |
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} else { |
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$Str .= $firstname if ($firstname ne ''); |
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$Str .= ' '.$middlename if ($middlename ne ''); |
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$Str .= ' '.$generation if ($generation ne ''); |
| } |
} |
| |
|
| $classlist{'UpToDate'} = 'false'; |
return $Str; |
| $classlist{'lastDownloadTime'}=time; |
} |
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|
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################################################ |
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################################################ |
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|
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=pod |
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|
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=item &make_into_hash($values); |
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|
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Returns a reference to a hash as described by $values. $values is |
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assumed to be the result of |
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join(':',map {&Apache::lonnet::escape($_)} %orighash); |
| |
|
| return \%classlist; |
This is a helper function for get_current_state. |
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|
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=cut |
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|
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################################################ |
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################################################ |
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sub make_into_hash { |
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my $values = shift; |
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my %tmp = map { &Apache::lonnet::unescape($_); } |
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split(':',$values); |
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return \%tmp; |
| } |
} |
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|
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|
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################################################ |
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################################################ |
| |
|
| =pod |
=pod |
| |
|
| =item &DownloadCourseInformation() |
=head1 LOCAL DATA CACHING SUBROUTINES |
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|
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The local caching is done using MySQL. There is no fall-back implementation |
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if MySQL is not running. |
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|
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The programmers interface is to call &get_current_state() or some other |
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primary interface subroutine (described below). The internals of this |
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storage system are documented here. |
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|
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There are six tables used to store student performance data (the results of |
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a dumpcurrent). Each of these tables is created in MySQL with a name of |
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$courseid_*****, where ***** is 'symb', 'part', or whatever is appropriate |
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for the table. The tables and their purposes are described below. |
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|
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Some notes before we get started. |
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|
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Each table must have a PRIMARY KEY, which is a column or set of columns which |
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will serve to uniquely identify a row of data. NULL is not allowed! |
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|
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INDEXes work best on integer data. |
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|
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JOIN is used to combine data from many tables into one output. |
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|
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lonmysql.pm is used for some of the interface, specifically the table creation |
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calls. The inserts are done in bulk by directly calling the database handler. |
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The SELECT ... JOIN statement used to retrieve the data does not have an |
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interface in lonmysql.pm and I shudder at the thought of writing one. |
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|
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=head3 Table Descriptions |
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|
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=over 4 |
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|
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=item Tables used to store meta information |
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|
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The following tables hold data required to keep track of the current status |
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of a students data in the tables or to look up the students data in the tables. |
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|
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=over 4 |
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|
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=item $symb_table |
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|
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The symb_table has two columns. The first is a 'symb_id' and the second |
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is the text name for the 'symb' (limited to 64k). The 'symb_id' is generated |
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automatically by MySQL so inserts should be done on this table with an |
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empty first element. This table has its PRIMARY KEY on the 'symb_id'. |
| |
|
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=item $part_table |
| |
|
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The part_table has two columns. The first is a 'part_id' and the second |
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is the text name for the 'part' (limited to 100 characters). The 'part_id' is |
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generated automatically by MySQL so inserts should be done on this table with |
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an empty first element. This table has its PRIMARY KEY on the 'part' (100 |
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characters) and a KEY on 'part_id'. |
| |
|
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=item $student_table |
| |
|
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The student_table has two columns. The first is a 'student_id' and the second |
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is the text description of the 'student' (typically username:domain) (less |
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than 100 characters). The 'student_id' is automatically generated by MySQL. |
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The use of the name 'student_id' is loaded, I know, but this ID is used ONLY |
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internally to the MySQL database and is not the same as the students ID |
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(stored in the students environment). This table has its PRIMARY KEY on the |
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'student' (100 characters). |
| |
|
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=item $studentdata_table |
| |
|
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The studentdata_table has four columns: 'student_id' (the unique id of |
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the student), 'updatetime' (the time the students data was last updated), |
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'fullupdatetime' (the time the students full data was last updated), |
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'section', and 'classification'( the students current classification). |
| |
This table has its PRIMARY KEY on 'student_id'. |
| |
|
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=back |
| |
|
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=item Tables used to store current status data |
| |
|
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The following tables store data only about the students current status on |
| |
a problem, meaning only the data related to the last attempt on a problem. |
| |
|
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=over 4 |
| |
|
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=item $performance_table |
| |
|
| Dump of all the course information for a single student. There is no |
The performance_table has 9 columns. The first three are 'symb_id', |
| pruning of data, it is all stored in a hash and returned. It also |
'student_id', and 'part_id'. These comprise the PRIMARY KEY for this table |
| checks the timestamp of the students course database file and only downloads |
and are directly related to the $symb_table, $student_table, and $part_table |
| if it has been modified since the last download. |
described above. MySQL does better indexing on numeric items than text, |
| |
so we use these three "index tables". The remaining columns are |
| |
'solved', 'tries', 'awarded', 'award', 'awarddetail', and 'timestamp'. |
| |
These are either the MySQL type TINYTEXT or various integers ('tries' and |
| |
'timestamp'). This table has KEYs of 'student_id' and 'symb_id'. |
| |
For use of this table, see the functions described below. |
| |
|
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=item $parameters_table |
| |
|
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The parameters_table holds the data that does not fit neatly into the |
| |
performance_table. The parameters table has four columns: 'symb_id', |
| |
'student_id', 'parameter', and 'value'. 'symb_id', 'student_id', and |
| |
'parameter' comprise the PRIMARY KEY for this table. 'parameter' is |
| |
limited to 255 characters. 'value' is limited to 64k characters. |
| |
|
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=back |
| |
|
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=item Tables used for storing historic data |
| |
|
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The following tables are used to store almost all of the transactions a student |
| |
has made on a homework problem. See loncapa/docs/homework/datastorage for |
| |
specific information about each of the parameters stored. |
| |
|
| =over 4 |
=over 4 |
| |
|
| Input: $name, $courseID |
=item $fulldump_response_table |
| |
|
| |
The response table holds data (documented in loncapa/docs/homework/datastorage) |
| |
associated with a particular response id which is stored when a student |
| |
attempts a problem. The following are the columns of the table, in order: |
| |
'symb_id','part_id','response_id','student_id','transaction','tries', |
| |
'awarddetail', 'response_specific' (data particular to the response |
| |
type), 'response_specific_value', and 'submission (the text of the students |
| |
submission). The primary key is based on the first five columns listed above. |
| |
|
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=item $fulldump_part_table |
| |
|
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The part table holds data (documented in loncapa/docs/homework/datastorage) |
| |
associated with a particular part id which is stored when a student attempts |
| |
a problem. The following are the columns of the table, in order: |
| |
'symb_id','part_id','student_id','transaction','tries','award','awarded', |
| |
and 'previous'. The primary key is based on the first five columns listed |
| |
above. |
| |
|
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=item $fulldump_timestamp_table |
| |
|
| |
The timestamp table holds the timestamps of the transactions which are |
| |
stored in $fulldump_response_table and $fulldump_part_table. This data is |
| |
about both the response and part data. Columns: 'symb_id','student_id', |
| |
'transaction', and 'timestamp'. |
| |
The primary key is based on the first 3 columns. |
| |
|
| |
=back |
| |
|
| |
=back |
| |
|
| |
=head3 Important Subroutines |
| |
|
| |
Here is a brief overview of the subroutines which are likely to be of |
| |
interest: |
| |
|
| $name: student name:domain |
=over 4 |
| |
|
| |
=item &get_current_state(): programmers interface. |
| |
|
| $courseID: The id of the course |
=item &init_dbs(): table creation |
| |
|
| Output: \%courseData |
=item &update_student_data(): data storage calls |
| |
|
| \%courseData: A hash pointer to the raw data from the student's course |
=item &get_student_data_from_performance_cache(): data retrieval |
| database. |
|
| |
|
| =back |
=back |
| |
|
| |
=head3 Main Documentation |
| |
|
| |
=over 4 |
| |
|
| =cut |
=cut |
| |
|
| sub DownloadCourseInformation { |
################################################ |
| my ($namedata,$courseID,$lastDownloadTime)=@_; |
################################################ |
| my %courseData; |
|
| my ($name,$domain) = split(/\:/,$namedata); |
|
| |
|
| my $modifiedTime = &GetFileTimestamp($domain, $name, |
################################################ |
| $courseID.'.db', |
################################################ |
| $Apache::lonnet::perlvar{'lonUsersDir'}); |
{ # Begin scope of table identifiers |
| |
|
| |
my $current_course =''; |
| |
my $symb_table; |
| |
my $part_table; |
| |
my $student_table; |
| |
my $studentdata_table; |
| |
my $performance_table; |
| |
my $parameters_table; |
| |
my $fulldump_response_table; |
| |
my $fulldump_part_table; |
| |
my $fulldump_timestamp_table; |
| |
|
| |
my @Tables; |
| |
################################################ |
| |
################################################ |
| |
|
| if($lastDownloadTime >= $modifiedTime) { |
=pod |
| $courseData{'lastDownloadTime'}=time; |
|
| $courseData{'UpToDate'} = 'true'; |
=item &init_dbs() |
| return \%courseData; |
|
| } |
Input: course id |
| |
|
| |
Output: 0 on success, positive integer on error |
| |
|
| |
This routine issues the calls to lonmysql to create the tables used to |
| |
store student data. |
| |
|
| |
=cut |
| |
|
| # Download course data |
################################################ |
| my $WhatIWant = '(version:(\w|\/|\.)+?$|'; |
################################################ |
| $WhatIWant .= '\d+?:(\w|\/|\.)+?:(resource\.\d+\.'; |
sub init_dbs { |
| $WhatIWant .= '(solved|tries|previous|awarded|(\d+\.submission))'; |
my $courseid = shift; |
| $WhatIWant .= '|timestamp)'; |
&setup_table_names($courseid); |
| $WhatIWant .= ')'; |
# |
| # %courseData=&Apache::lonnet::dump($courseID, $domain, $name, $WhatIWant); |
# Drop any of the existing tables |
| %courseData=&Apache::lonnet::dump($courseID, $domain, $name); |
foreach my $table (@Tables) { |
| $courseData{'UpToDate'} = 'false'; |
&Apache::lonmysql::drop_table($table); |
| $courseData{'lastDownloadTime'}=time; |
} |
| return \%courseData; |
# |
| |
# Note - changes to this table must be reflected in the code that |
| |
# stores the data (calls &Apache::lonmysql::store_row with this table |
| |
# id |
| |
my $symb_table_def = { |
| |
id => $symb_table, |
| |
permanent => 'no', |
| |
columns => [{ name => 'symb_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL', |
| |
auto_inc => 'yes', }, |
| |
{ name => 'symb', |
| |
type => 'MEDIUMTEXT', |
| |
restrictions => 'NOT NULL'}, |
| |
], |
| |
'PRIMARY KEY' => ['symb_id'], |
| |
}; |
| |
# |
| |
my $part_table_def = { |
| |
id => $part_table, |
| |
permanent => 'no', |
| |
columns => [{ name => 'part_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL', |
| |
auto_inc => 'yes', }, |
| |
{ name => 'part', |
| |
type => 'VARCHAR(100)', |
| |
restrictions => 'NOT NULL'}, |
| |
], |
| |
'PRIMARY KEY' => ['part (100)'], |
| |
'KEY' => [{ columns => ['part_id']},], |
| |
}; |
| |
# |
| |
my $student_table_def = { |
| |
id => $student_table, |
| |
permanent => 'no', |
| |
columns => [{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL', |
| |
auto_inc => 'yes', }, |
| |
{ name => 'student', |
| |
type => 'VARCHAR(100)', |
| |
restrictions => 'NOT NULL'}, |
| |
{ name => 'classification', |
| |
type => 'varchar(100)', }, |
| |
], |
| |
'PRIMARY KEY' => ['student (100)'], |
| |
'KEY' => [{ columns => ['student_id']},], |
| |
}; |
| |
# |
| |
my $studentdata_table_def = { |
| |
id => $studentdata_table, |
| |
permanent => 'no', |
| |
columns => [{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL UNIQUE',}, |
| |
{ name => 'updatetime', |
| |
type => 'INT UNSIGNED'}, |
| |
{ name => 'fullupdatetime', |
| |
type => 'INT UNSIGNED'}, |
| |
{ name => 'section', |
| |
type => 'VARCHAR(100)'}, |
| |
{ name => 'classification', |
| |
type => 'VARCHAR(100)', }, |
| |
], |
| |
'PRIMARY KEY' => ['student_id'], |
| |
}; |
| |
# |
| |
my $performance_table_def = { |
| |
id => $performance_table, |
| |
permanent => 'no', |
| |
columns => [{ name => 'symb_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'part_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'part', |
| |
type => 'VARCHAR(100)', |
| |
restrictions => 'NOT NULL'}, |
| |
{ name => 'solved', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'tries', |
| |
type => 'SMALLINT UNSIGNED' }, |
| |
{ name => 'awarded', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'award', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'awarddetail', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'timestamp', |
| |
type => 'INT UNSIGNED'}, |
| |
], |
| |
'PRIMARY KEY' => ['symb_id','student_id','part_id'], |
| |
'KEY' => [{ columns=>['student_id'] }, |
| |
{ columns=>['symb_id'] },], |
| |
}; |
| |
# |
| |
my $fulldump_part_table_def = { |
| |
id => $fulldump_part_table, |
| |
permanent => 'no', |
| |
columns => [ |
| |
{ name => 'symb_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'part_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'transaction', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'tries', |
| |
type => 'SMALLINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'award', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'awarded', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'previous', |
| |
type => 'SMALLINT UNSIGNED' }, |
| |
# { name => 'regrader', |
| |
# type => 'TINYTEXT' }, |
| |
# { name => 'afterduedate', |
| |
# type => 'TINYTEXT' }, |
| |
], |
| |
'PRIMARY KEY' => ['symb_id','part_id','student_id','transaction'], |
| |
'KEY' => [ |
| |
{ columns=>['symb_id'] }, |
| |
{ columns=>['part_id'] }, |
| |
{ columns=>['student_id'] }, |
| |
], |
| |
}; |
| |
# |
| |
my $fulldump_response_table_def = { |
| |
id => $fulldump_response_table, |
| |
permanent => 'no', |
| |
columns => [ |
| |
{ name => 'symb_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'part_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'response_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'transaction', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'awarddetail', |
| |
type => 'TINYTEXT' }, |
| |
# { name => 'message', |
| |
# type => 'CHAR' }, |
| |
{ name => 'response_specific', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'response_specific_value', |
| |
type => 'TINYTEXT' }, |
| |
{ name => 'submission', |
| |
type => 'TEXT'}, |
| |
], |
| |
'PRIMARY KEY' => ['symb_id','part_id','response_id','student_id', |
| |
'transaction'], |
| |
'KEY' => [ |
| |
{ columns=>['symb_id'] }, |
| |
{ columns=>['part_id','response_id'] }, |
| |
{ columns=>['student_id'] }, |
| |
], |
| |
}; |
| |
my $fulldump_timestamp_table_def = { |
| |
id => $fulldump_timestamp_table, |
| |
permanent => 'no', |
| |
columns => [ |
| |
{ name => 'symb_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'transaction', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'timestamp', |
| |
type => 'INT UNSIGNED'}, |
| |
], |
| |
'PRIMARY KEY' => ['symb_id','student_id','transaction'], |
| |
'KEY' => [ |
| |
{ columns=>['symb_id'] }, |
| |
{ columns=>['student_id'] }, |
| |
{ columns=>['transaction'] }, |
| |
], |
| |
}; |
| |
|
| |
# |
| |
my $parameters_table_def = { |
| |
id => $parameters_table, |
| |
permanent => 'no', |
| |
columns => [{ name => 'symb_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'student_id', |
| |
type => 'MEDIUMINT UNSIGNED', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'parameter', |
| |
type => 'TINYTEXT', |
| |
restrictions => 'NOT NULL' }, |
| |
{ name => 'value', |
| |
type => 'MEDIUMTEXT' }, |
| |
], |
| |
'PRIMARY KEY' => ['symb_id','student_id','parameter (255)'], |
| |
}; |
| |
# |
| |
# Create the tables |
| |
my $tableid; |
| |
$tableid = &Apache::lonmysql::create_table($symb_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating symb_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 1; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($part_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating part_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 2; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($student_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating student_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 3; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($studentdata_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating studentdata_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 4; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($performance_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating preformance_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 5; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($parameters_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating parameters_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 6; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($fulldump_part_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating fulldump_part_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 7; |
| |
} |
| |
# |
| |
$tableid = &Apache::lonmysql::create_table($fulldump_response_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating fulldump_response_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 8; |
| |
} |
| |
$tableid = &Apache::lonmysql::create_table($fulldump_timestamp_table_def); |
| |
if (! defined($tableid)) { |
| |
&Apache::lonnet::logthis("error creating fulldump_timestamp_table: ". |
| |
&Apache::lonmysql::get_error()); |
| |
return 9; |
| |
} |
| |
return 0; |
| } |
} |
| |
|
| # ----- END DOWNLOAD INFORMATION --------------------------------------- |
################################################ |
| |
################################################ |
| |
|
| =pod |
=pod |
| |
|
| =head1 PROCESSING FUNCTIONS |
=item &delete_caches() |
| |
|
| These functions process all the data for all the students. Also, they |
|
| are the only functions that access the cache database for writing. Thus |
|
| they are the only functions that cache data. The downloading and caching |
|
| were separated to reduce problems with stopping downloading then can't |
|
| tie hash to database later. |
|
| |
|
| =cut |
=cut |
| |
|
| # ----- PROCESSING FUNCTIONS --------------------------------------- |
################################################ |
| |
################################################ |
| |
sub delete_caches { |
| |
my $courseid = shift; |
| |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| |
# |
| |
&setup_table_names($courseid); |
| |
# |
| |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
foreach my $table (@Tables) { |
| |
my $command = 'DROP TABLE '.$table.';'; |
| |
$dbh->do($command); |
| |
if ($dbh->err) { |
| |
&Apache::lonnet::logthis($command.' resulted in error: '.$dbh->errstr); |
| |
} |
| |
} |
| |
return; |
| |
} |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| =pod |
=pod |
| |
|
| =item &ProcessTopResourceMap() |
=item &get_part_id() |
| |
|
| Trace through the "big hash" created in rat/lonuserstate.pm::loadmap. |
Get the MySQL id of a problem part string. |
| Basically, this function organizes a subset of the data and stores it in |
|
| cached data. The data stored is the problems, sequences, sequence titles, |
|
| parts of problems, and their ordering. Column width information is also |
|
| partially handled here on a per sequence basis. |
|
| |
|
| =over 4 |
Input: $part |
| |
|
| Input: $cache, $c |
Output: undef on error, integer $part_id on success. |
| |
|
| $cache: A pointer to a hash to store the information |
=item &get_part() |
| |
|
| $c: The connection class used to determine if an abort has been sent to the |
Get the string describing a part from the MySQL id of the problem part. |
| browser |
|
| |
|
| Output: A string that contains an error message or "OK" if everything went |
Input: $part_id |
| smoothly. |
|
| |
|
| =back |
Output: undef on error, $part string on success. |
| |
|
| =cut |
=cut |
| |
|
| sub ProcessTopResourceMap { |
################################################ |
| my ($cache,$c)=@_; |
################################################ |
| my %hash; |
|
| my $fn=$ENV{'request.course.fn'}; |
my $have_read_part_table = 0; |
| if(-e "$fn.db") { |
my %ids_by_part; |
| my $tieTries=0; |
my %parts_by_id; |
| while($tieTries < 3) { |
|
| if($c->aborted()) { |
sub get_part_id { |
| return; |
my ($part) = @_; |
| } |
$part = 0 if (! defined($part)); |
| if(tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) { |
if (! $have_read_part_table) { |
| last; |
my @Result = &Apache::lonmysql::get_rows($part_table); |
| } |
foreach (@Result) { |
| $tieTries++; |
$ids_by_part{$_->[1]}=$_->[0]; |
| sleep 1; |
} |
| } |
$have_read_part_table = 1; |
| if($tieTries >= 3) { |
} |
| return 'Coursemap undefined.'; |
if (! exists($ids_by_part{$part})) { |
| |
&Apache::lonmysql::store_row($part_table,[undef,$part]); |
| |
undef(%ids_by_part); |
| |
my @Result = &Apache::lonmysql::get_rows($part_table); |
| |
foreach (@Result) { |
| |
$ids_by_part{$_->[1]}=$_->[0]; |
| } |
} |
| } else { |
|
| return 'Can not open Coursemap.'; |
|
| } |
} |
| |
return $ids_by_part{$part} if (exists($ids_by_part{$part})); |
| |
return undef; # error |
| |
} |
| |
|
| # Initialize state machine. Set information pointing to top level map. |
sub get_part { |
| my (@sequences, @currentResource, @finishResource); |
my ($part_id) = @_; |
| my ($currentSequence, $currentResourceID, $lastResourceID); |
if (! exists($parts_by_id{$part_id}) || |
| |
! defined($parts_by_id{$part_id}) || |
| $currentResourceID=$hash{'ids_/res/'.$ENV{'request.course.uri'}}; |
$parts_by_id{$part_id} eq '') { |
| push(@currentResource, $currentResourceID); |
my @Result = &Apache::lonmysql::get_rows($part_table); |
| $lastResourceID=-1; |
foreach (@Result) { |
| $currentSequence=-1; |
$parts_by_id{$_->[0]}=$_->[1]; |
| my $topLevelSequenceNumber = $currentSequence; |
} |
| |
} |
| my %sequenceRecord; |
return $parts_by_id{$part_id} if(exists($parts_by_id{$part_id})); |
| while(1) { |
return undef; # error |
| if($c->aborted()) { |
} |
| last; |
|
| } |
|
| # HANDLE NEW SEQUENCE! |
|
| #if page || sequence |
|
| if(defined($hash{'map_pc_'.$hash{'src_'.$currentResourceID}}) && |
|
| !defined($sequenceRecord{$currentResourceID})) { |
|
| $sequenceRecord{$currentResourceID}++; |
|
| push(@sequences, $currentSequence); |
|
| push(@currentResource, $currentResourceID); |
|
| push(@finishResource, $lastResourceID); |
|
| |
|
| $currentSequence=$hash{'map_pc_'.$hash{'src_'.$currentResourceID}}; |
|
| |
|
| # Mark sequence as containing problems. If it doesn't, then |
|
| # it will be removed when processing for this sequence is |
|
| # complete. This allows the problems in a sequence |
|
| # to be outputed before problems in the subsequences |
|
| if(!defined($cache->{'orderedSequences'})) { |
|
| $cache->{'orderedSequences'}=$currentSequence; |
|
| } else { |
|
| $cache->{'orderedSequences'}.=':'.$currentSequence; |
|
| } |
|
| |
|
| $lastResourceID=$hash{'map_finish_'. |
################################################ |
| $hash{'src_'.$currentResourceID}}; |
################################################ |
| $currentResourceID=$hash{'map_start_'. |
|
| $hash{'src_'.$currentResourceID}}; |
|
| |
|
| if(!($currentResourceID) || !($lastResourceID)) { |
|
| $currentSequence=pop(@sequences); |
|
| $currentResourceID=pop(@currentResource); |
|
| $lastResourceID=pop(@finishResource); |
|
| if($currentSequence eq $topLevelSequenceNumber) { |
|
| last; |
|
| } |
|
| } |
|
| } |
|
| |
|
| # Handle gradable resources: exams, problems, etc |
=pod |
| $currentResourceID=~/(\d+)\.(\d+)/; |
|
| my $partA=$1; |
|
| my $partB=$2; |
|
| if($hash{'src_'.$currentResourceID}=~ |
|
| /\.(problem|exam|quiz|assess|survey|form)$/ && |
|
| $partA eq $currentSequence && |
|
| !defined($sequenceRecord{$currentSequence.':'. |
|
| $currentResourceID})) { |
|
| $sequenceRecord{$currentSequence.':'.$currentResourceID}++; |
|
| my $Problem = &Apache::lonnet::symbclean( |
|
| &Apache::lonnet::declutter($hash{'map_id_'.$partA}). |
|
| '___'.$partB.'___'. |
|
| &Apache::lonnet::declutter($hash{'src_'. |
|
| $currentResourceID})); |
|
| |
|
| $cache->{$currentResourceID.':problem'}=$Problem; |
|
| if(!defined($cache->{$currentSequence.':problems'})) { |
|
| $cache->{$currentSequence.':problems'}=$currentResourceID; |
|
| } else { |
|
| $cache->{$currentSequence.':problems'}.= |
|
| ':'.$currentResourceID; |
|
| } |
|
| |
|
| my $meta=$hash{'src_'.$currentResourceID}; |
=item &get_symb_id() |
| # $cache->{$currentResourceID.':title'}= |
|
| # &Apache::lonnet::metdata($meta,'title'); |
|
| $cache->{$currentResourceID.':title'}= |
|
| $hash{'title_'.$currentResourceID}; |
|
| $cache->{$currentResourceID.':source'}= |
|
| $hash{'src_'.$currentResourceID}; |
|
| |
|
| # Get Parts for problem |
|
| my %beenHere; |
|
| foreach (split(/\,/,&Apache::lonnet::metadata($meta,'packages'))) { |
|
| if(/^\w+response_\d+.*/) { |
|
| my (undef, $partId, $responseId) = split(/_/,$_); |
|
| if($beenHere{'p:'.$partId} == 0) { |
|
| $beenHere{'p:'.$partId}++; |
|
| if(!defined($cache->{$currentSequence.':'. |
|
| $currentResourceID.':parts'})) { |
|
| $cache->{$currentSequence.':'.$currentResourceID. |
|
| ':parts'}=$partId; |
|
| } else { |
|
| $cache->{$currentSequence.':'.$currentResourceID. |
|
| ':parts'}.=':'.$partId; |
|
| } |
|
| } |
|
| if($beenHere{'r:'.$partId.':'.$responseId} == 0) { |
|
| $beenHere{'r:'.$partId.':'.$responseId}++; |
|
| if(!defined($cache->{$currentSequence.':'. |
|
| $currentResourceID.':'.$partId. |
|
| ':responseIDs'})) { |
|
| $cache->{$currentSequence.':'.$currentResourceID. |
|
| ':'.$partId.':responseIDs'}=$responseId; |
|
| } else { |
|
| $cache->{$currentSequence.':'.$currentResourceID. |
|
| ':'.$partId.':responseIDs'}.=':'. |
|
| $responseId; |
|
| } |
|
| } |
|
| if(/^optionresponse/ && |
|
| $beenHere{'o:'.$partId.':'.$currentResourceID} == 0) { |
|
| $beenHere{'o:'.$partId.$currentResourceID}++; |
|
| if(defined($cache->{'OptionResponses'})) { |
|
| $cache->{'OptionResponses'}.= ':::'. |
|
| $currentResourceID.':'. |
|
| $partId.':'.$responseId; |
|
| } else { |
|
| $cache->{'OptionResponses'}= $currentResourceID. |
|
| ':'.$partId.':'.$responseId; |
|
| } |
|
| } |
|
| } |
|
| } |
|
| } |
|
| |
|
| # if resource == finish resource, then it is the end of a sequence/page |
Get the MySQL id of a symb. |
| if($currentResourceID eq $lastResourceID) { |
|
| # pop off last resource of sequence |
Input: $symb |
| $currentResourceID=pop(@currentResource); |
|
| $lastResourceID=pop(@finishResource); |
Output: undef on error, integer $symb_id on success. |
| |
|
| if(defined($cache->{$currentSequence.':problems'})) { |
=item &get_symb() |
| # Capture sequence information here |
|
| $cache->{$currentSequence.':title'}= |
Get the symb associated with a MySQL symb_id. |
| $hash{'title_'.$currentResourceID}; |
|
| $cache->{$currentSequence.':source'}= |
Input: $symb_id |
| $hash{'src_'.$currentResourceID}; |
|
| |
Output: undef on error, $symb on success. |
| my $totalProblems=0; |
|
| foreach my $currentProblem (split(/\:/, |
=cut |
| $cache->{$currentSequence. |
|
| ':problems'})) { |
################################################ |
| foreach (split(/\:/,$cache->{$currentSequence.':'. |
################################################ |
| $currentProblem. |
|
| ':parts'})) { |
my $have_read_symb_table = 0; |
| $totalProblems++; |
my %ids_by_symb; |
| } |
my %symbs_by_id; |
| } |
|
| my @titleLength=split(//,$cache->{$currentSequence. |
sub get_symb_id { |
| ':title'}); |
my ($symb) = @_; |
| # $extra is 3 for problems correct and 3 for space |
if (! $have_read_symb_table) { |
| # between problems correct and problem output |
my @Result = &Apache::lonmysql::get_rows($symb_table); |
| my $extra = 6; |
foreach (@Result) { |
| if(($totalProblems + $extra) > (scalar @titleLength)) { |
$ids_by_symb{$_->[1]}=$_->[0]; |
| $cache->{$currentSequence.':columnWidth'}= |
|
| $totalProblems + $extra; |
|
| } else { |
|
| $cache->{$currentSequence.':columnWidth'}= |
|
| (scalar @titleLength); |
|
| } |
|
| } else { |
|
| # Remove sequence from list, if it contains no problems to |
|
| # display. |
|
| $cache->{'orderedSequences'}=~s/$currentSequence//; |
|
| $cache->{'orderedSequences'}=~s/::/:/g; |
|
| $cache->{'orderedSequences'}=~s/^:|:$//g; |
|
| } |
|
| |
|
| $currentSequence=pop(@sequences); |
|
| if($currentSequence eq $topLevelSequenceNumber) { |
|
| last; |
|
| } |
|
| } |
} |
| |
$have_read_symb_table = 1; |
| |
} |
| |
if (! exists($ids_by_symb{$symb})) { |
| |
&Apache::lonmysql::store_row($symb_table,[undef,$symb]); |
| |
undef(%ids_by_symb); |
| |
my @Result = &Apache::lonmysql::get_rows($symb_table); |
| |
foreach (@Result) { |
| |
$ids_by_symb{$_->[1]}=$_->[0]; |
| |
} |
| |
} |
| |
return $ids_by_symb{$symb} if(exists( $ids_by_symb{$symb})); |
| |
return undef; # error |
| |
} |
| |
|
| # MOVE!!! |
sub get_symb { |
| # move to next resource |
my ($symb_id) = @_; |
| unless(defined($hash{'to_'.$currentResourceID})) { |
if (! exists($symbs_by_id{$symb_id}) || |
| # big problem, need to handle. Next is probably wrong |
! defined($symbs_by_id{$symb_id}) || |
| my $errorMessage = 'Big problem in '; |
$symbs_by_id{$symb_id} eq '') { |
| $errorMessage .= 'loncoursedata::ProcessTopLevelMap.'; |
my @Result = &Apache::lonmysql::get_rows($symb_table); |
| $errorMessage .= ' bighash to_$currentResourceID not defined!'; |
foreach (@Result) { |
| &Apache::lonnet::logthis($errorMessage); |
$symbs_by_id{$_->[0]}=$_->[1]; |
| last; |
} |
| } |
|
| my @nextResources=(); |
|
| foreach (split(/\,/,$hash{'to_'.$currentResourceID})) { |
|
| if(!defined($sequenceRecord{$currentSequence.':'. |
|
| $hash{'goesto_'.$_}})) { |
|
| push(@nextResources, $hash{'goesto_'.$_}); |
|
| } |
|
| } |
|
| push(@currentResource, @nextResources); |
|
| # Set the next resource to be processed |
|
| $currentResourceID=pop(@currentResource); |
|
| } |
} |
| |
return $symbs_by_id{$symb_id} if(exists( $symbs_by_id{$symb_id})); |
| |
return undef; # error |
| |
} |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| |
=pod |
| |
|
| |
=item &get_student_id() |
| |
|
| |
Get the MySQL id of a student. |
| |
|
| |
Input: $sname, $dom |
| |
|
| |
Output: undef on error, integer $student_id on success. |
| |
|
| |
=item &get_student() |
| |
|
| |
Get student username:domain associated with the MySQL student_id. |
| |
|
| |
Input: $student_id |
| |
|
| |
Output: undef on error, string $student (username:domain) on success. |
| |
|
| |
=cut |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| unless (untie(%hash)) { |
my $have_read_student_table = 0; |
| &Apache::lonnet::logthis("<font color=blue>WARNING: ". |
my %ids_by_student; |
| "Could not untie coursemap $fn (browse)". |
my %students_by_id; |
| ".</font>"); |
|
| |
sub get_student_id { |
| |
my ($sname,$sdom) = @_; |
| |
my $student = $sname.':'.$sdom; |
| |
if (! $have_read_student_table) { |
| |
my @Result = &Apache::lonmysql::get_rows($student_table); |
| |
foreach (@Result) { |
| |
$ids_by_student{$_->[1]}=$_->[0]; |
| |
} |
| |
$have_read_student_table = 1; |
| |
} |
| |
if (! exists($ids_by_student{$student})) { |
| |
&Apache::lonmysql::store_row($student_table, |
| |
[undef,$student,undef]); |
| |
undef(%ids_by_student); |
| |
my @Result = &Apache::lonmysql::get_rows($student_table); |
| |
foreach (@Result) { |
| |
$ids_by_student{$_->[1]}=$_->[0]; |
| |
} |
| } |
} |
| |
return $ids_by_student{$student} if(exists( $ids_by_student{$student})); |
| |
return undef; # error |
| |
} |
| |
|
| return 'OK'; |
sub get_student { |
| |
my ($student_id) = @_; |
| |
if (! exists($students_by_id{$student_id}) || |
| |
! defined($students_by_id{$student_id}) || |
| |
$students_by_id{$student_id} eq '') { |
| |
my @Result = &Apache::lonmysql::get_rows($student_table); |
| |
foreach (@Result) { |
| |
$students_by_id{$_->[0]}=$_->[1]; |
| |
} |
| |
} |
| |
return $students_by_id{$student_id} if(exists($students_by_id{$student_id})); |
| |
return undef; # error |
| } |
} |
| |
|
| =pod |
################################################ |
| |
################################################ |
| |
|
| =item &ProcessClasslist() |
=pod |
| |
|
| Taking the class list dumped from &DownloadClasslist(), all the |
=item &clear_internal_caches() |
| students and their non-class information is processed using the |
|
| &ProcessStudentInformation() function. A date stamp is also recorded for |
|
| when the data was processed. |
|
| |
|
| Takes data downloaded for a student and breaks it up into managable pieces and |
Causes the internal caches used in get_student_id, get_student, |
| stored in cache data. The username, domain, class related date, PID, |
get_symb_id, get_symb, get_part_id, and get_part to be undef'd. |
| full name, and section are all processed here. |
|
| |
|
| |
Needs to be called before the first operation with the MySQL database |
| |
for a given Apache request. |
| |
|
| =over 4 |
=cut |
| |
|
| Input: $cache, $classlist, $courseID, $ChartDB, $c |
################################################ |
| |
################################################ |
| |
sub clear_internal_caches { |
| |
$have_read_part_table = 0; |
| |
undef(%ids_by_part); |
| |
undef(%parts_by_id); |
| |
$have_read_symb_table = 0; |
| |
undef(%ids_by_symb); |
| |
undef(%symbs_by_id); |
| |
$have_read_student_table = 0; |
| |
undef(%ids_by_student); |
| |
undef(%students_by_id); |
| |
} |
| |
|
| $cache: A hash pointer to store the data |
|
| |
|
| $classlist: The hash of data collected about a student from |
################################################ |
| &DownloadClasslist(). The hash contains a list of students, a pointer |
################################################ |
| to a hash of student information for each student, and each student's section |
|
| number. |
|
| |
|
| $courseID: The course ID |
=pod |
| |
|
| $ChartDB: The name of the cache database file. |
=item &update_full_student_data($sname,$sdom,$courseid) |
| |
|
| $c: The connection class used to determine if an abort has been sent to the |
Does a lonnet::dump on a student to populate the courses tables. |
| browser |
|
| |
|
| Output: @names |
Input: $sname, $sdom, $courseid |
| |
|
| @names: An array of students whose information has been processed, and are to |
Output: $returnstatus |
| be considered in an arbitrary order. |
|
| |
|
| =back |
$returnstatus is a string describing any errors that occured. 'okay' is the |
| |
default. |
| |
|
| |
This subroutine loads a students data using lonnet::dump and inserts |
| |
it into the MySQL database. The inserts are done on three tables, |
| |
$fulldump_response_table, $fulldump_part_table, and $fulldump_timestamp_table. |
| |
The INSERT calls are made directly by this subroutine, not through lonmysql |
| |
because we do a 'bulk'insert which takes advantage of MySQLs non-SQL |
| |
compliant INSERT command to insert multiple rows at a time. |
| |
If anything has gone wrong during this process, $returnstatus is updated with |
| |
a description of the error. |
| |
|
| |
Once the "fulldump" tables are updated, the tables used for chart and |
| |
spreadsheet (which hold only the current state of the student on their |
| |
homework, not historical data) are updated. If all updates have occured |
| |
successfully, the studentdata table is updated to reflect the time of the |
| |
update. |
| |
|
| |
Notice we do not insert the data and immediately query it. This means it |
| |
is possible for there to be data returned this first time that is not |
| |
available the second time. CYA. |
| |
|
| =cut |
=cut |
| |
|
| sub ProcessClasslist { |
################################################ |
| my ($cache,$classlist,$courseID,$c)=@_; |
################################################ |
| my @names=(); |
sub update_full_student_data { |
| |
my ($sname,$sdom,$courseid) = @_; |
| $cache->{'ClasslistTimeStamp'}=$classlist->{'lastDownloadTime'}; |
# |
| if($classlist->{'UpToDate'} eq 'true') { |
# Set up database names |
| return split(/:::/,$cache->{'NamesOfStudents'});; |
&setup_table_names($courseid); |
| |
# |
| |
my $student_id = &get_student_id($sname,$sdom); |
| |
my $student = $sname.':'.$sdom; |
| |
# |
| |
my $returnstatus = 'okay'; |
| |
# |
| |
# Download students data |
| |
my $time_of_retrieval = time; |
| |
my @tmp = &Apache::lonnet::dump($courseid,$sdom,$sname); |
| |
if (@tmp && $tmp[0] =~ /^error/) { |
| |
$returnstatus = 'error retrieving full student data'; |
| |
return $returnstatus; |
| |
} elsif (! @tmp) { |
| |
$returnstatus = 'okay: no student data'; |
| |
return $returnstatus; |
| } |
} |
| |
my %studentdata = @tmp; |
| foreach my $name (keys(%$classlist)) { |
# |
| if($name =~ /\:section/ || $name =~ /\:studentInformation/ || |
# Get database handle and clean out the tables |
| $name eq '' || $name eq 'UpToDate' || $name eq 'lastDownloadTime') { |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
$dbh->do('DELETE FROM '.$fulldump_response_table.' WHERE student_id='. |
| |
$student_id); |
| |
$dbh->do('DELETE FROM '.$fulldump_part_table.' WHERE student_id='. |
| |
$student_id); |
| |
$dbh->do('DELETE FROM '.$fulldump_timestamp_table.' WHERE student_id='. |
| |
$student_id); |
| |
# |
| |
# Parse and store the data into a form we can handle |
| |
my $partdata; |
| |
my $respdata; |
| |
while (my ($key,$value) = each(%studentdata)) { |
| |
next if ($key =~ /^(\d+):(resource$|subnum$|keys:)/); |
| |
my ($transaction,$symb,$parameter) = split(':',$key); |
| |
my $symb_id = &get_symb_id($symb); |
| |
if ($parameter eq 'timestamp') { |
| |
# We can deal with 'timestamp' right away |
| |
my @timestamp_storage = ($symb_id,$student_id, |
| |
$transaction,$value); |
| |
my $store_command = 'INSERT IGNORE INTO '.$fulldump_timestamp_table. |
| |
" VALUES ('".join("','",@timestamp_storage)."');"; |
| |
$dbh->do($store_command); |
| |
if ($dbh->err()) { |
| |
&Apache::lonnet::logthis('unable to execute '.$store_command); |
| |
&Apache::lonnet::logthis($dbh->errstr()); |
| |
} |
| next; |
next; |
| } |
} elsif ($parameter eq 'version') { |
| if($c->aborted()) { |
next; |
| return (); |
} elsif ($parameter =~ /^resource\.(.*)\.(tries| |
| } |
award| |
| push(@names,$name); |
awarded| |
| my $studentInformation = $classlist->{$name.':studentInformation'}, |
previous| |
| my $sectionData = $classlist->{$name.':sections'}, |
solved| |
| my $date = $classlist->{$name}, |
awarddetail| |
| my ($studentName,$studentDomain) = split(/\:/,$name); |
submission| |
| |
submissiongrading| |
| $cache->{$name.':username'}=$studentName; |
molecule)\s*$/x){ |
| $cache->{$name.':domain'}=$studentDomain; |
# we do not have enough information to store an |
| # Initialize timestamp for student |
# entire row, so we save it up until later. |
| if(!defined($cache->{$name.':lastDownloadTime'})) { |
my ($part_and_resp_id,$field) = ($1,$2); |
| $cache->{$name.':lastDownloadTime'}='Not downloaded'; |
my ($part,$part_id,$resp,$resp_id); |
| $cache->{$name.':updateTime'}=' Not updated'; |
if ($part_and_resp_id =~ /\./) { |
| } |
($part,$resp) = split(/\./,$part_and_resp_id); |
| |
$part_id = &get_part_id($part); |
| my ($checkForError)=keys(%$studentInformation); |
$resp_id = &get_part_id($resp); |
| if($checkForError =~ /^(con_lost|error|no_such_host)/i) { |
} else { |
| $cache->{$name.':error'}= |
$part_id = &get_part_id($part_and_resp_id); |
| 'Could not download student environment data.'; |
} |
| $cache->{$name.':fullname'}=''; |
# Deal with part specific data |
| $cache->{$name.':id'}=''; |
if ($field =~ /^(tries|award|awarded|previous)$/) { |
| } else { |
$partdata->{$symb_id}->{$part_id}->{$transaction}->{$field}=$value; |
| $cache->{$name.':fullname'}=&ProcessFullName( |
} |
| $studentInformation->{'lastname'}, |
# deal with response specific data |
| $studentInformation->{'generation'}, |
if (defined($resp_id) && |
| $studentInformation->{'firstname'}, |
$field =~ /^(awarddetail| |
| $studentInformation->{'middlename'}); |
submission| |
| $cache->{$name.':id'}=$studentInformation->{'id'}; |
submissiongrading| |
| } |
molecule)$/x) { |
| |
if ($field eq 'submission') { |
| my ($end, $start)=split(':',$date); |
# We have to be careful with user supplied input. |
| $courseID=~s/\_/\//g; |
# most of the time we are okay because it is escaped. |
| $courseID=~s/^(\w)/\/$1/; |
# However, there is one wrinkle: submissions which end in |
| |
# and odd number of '\' cause insert errors to occur. |
| my $sec=''; |
# Best trap this somehow... |
| foreach my $key (keys (%$sectionData)) { |
$value =~ s/\'/\\\'/g; |
| my $value = $sectionData->{$key}; |
my ($offensive_string) = ($value =~ /(\\+)$/); |
| if ($key=~/^$courseID(?:\/)*(\w+)*\_st$/) { |
if (length($offensive_string) % 2) { |
| my $tempsection=$1; |
$value =~ s/\\$/\\\\/; |
| if($key eq $courseID.'_st') { |
} |
| $tempsection=''; |
|
| } |
} |
| my ($dummy,$roleend,$rolestart)=split(/\_/,$value); |
if ($field eq 'submissiongrading' || |
| if($roleend eq $end && $rolestart eq $start) { |
$field eq 'molecule') { |
| $sec = $tempsection; |
$respdata->{$symb_id}->{$part_id}->{$resp_id}->{$transaction}->{'response_specific'}=$field; |
| last; |
$respdata->{$symb_id}->{$part_id}->{$resp_id}->{$transaction}->{'response_specific_value'}=$value; |
| |
} else { |
| |
$respdata->{$symb_id}->{$part_id}->{$resp_id}->{$transaction}->{$field}=$value; |
| } |
} |
| } |
} |
| } |
} |
| |
} |
| my $status='Expired'; |
## |
| if(((!$end) || time < $end) && ((!$start) || (time > $start))) { |
## Store the part data |
| $status='Active'; |
my $store_command = 'INSERT IGNORE INTO '.$fulldump_part_table. |
| |
' VALUES '."\n"; |
| |
my $store_rows = 0; |
| |
while (my ($symb_id,$hash1) = each (%$partdata)) { |
| |
while (my ($part_id,$hash2) = each (%$hash1)) { |
| |
while (my ($transaction,$data) = each (%$hash2)) { |
| |
$store_command .= "('".join("','",$symb_id,$part_id, |
| |
$student_id, |
| |
$transaction, |
| |
$data->{'tries'}, |
| |
$data->{'award'}, |
| |
$data->{'awarded'}, |
| |
$data->{'previous'})."'),"; |
| |
$store_rows++; |
| |
} |
| } |
} |
| $cache->{$name.':Status'}=$status; |
} |
| $cache->{$name.':section'}=$sec; |
if ($store_rows) { |
| |
chop($store_command); |
| if($sec eq '' || !defined($sec) || $sec eq ' ') { |
$dbh->do($store_command); |
| $sec = 'none'; |
if ($dbh->err) { |
| |
$returnstatus = 'error storing part data'; |
| |
&Apache::lonnet::logthis('insert error '.$dbh->errstr()); |
| |
&Apache::lonnet::logthis("While attempting\n".$store_command); |
| } |
} |
| if(defined($cache->{'sectionList'})) { |
} |
| if($cache->{'sectionList'} !~ /(^$sec:|^$sec$|:$sec$|:$sec:)/) { |
## |
| $cache->{'sectionList'} .= ':'.$sec; |
## Store the response data |
| |
$store_command = 'INSERT IGNORE INTO '.$fulldump_response_table. |
| |
' VALUES '."\n"; |
| |
$store_rows = 0; |
| |
while (my ($symb_id,$hash1) = each (%$respdata)) { |
| |
while (my ($part_id,$hash2) = each (%$hash1)) { |
| |
while (my ($resp_id,$hash3) = each (%$hash2)) { |
| |
while (my ($transaction,$data) = each (%$hash3)) { |
| |
$store_command .= "('".join("','",$symb_id,$part_id, |
| |
$resp_id,$student_id, |
| |
$transaction, |
| |
$data->{'awarddetail'}, |
| |
$data->{'response_specific'}, |
| |
$data->{'response_specific_value'}, |
| |
$data->{'submission'})."'),"; |
| |
$store_rows++; |
| |
} |
| } |
} |
| } else { |
|
| $cache->{'sectionList'} = $sec; |
|
| } |
} |
| } |
} |
| |
if ($store_rows) { |
| $cache->{'ClasslistTimestamp'}=time; |
chop($store_command); |
| $cache->{'NamesOfStudents'}=join(':::',@names); |
$dbh->do($store_command); |
| |
if ($dbh->err) { |
| return @names; |
$returnstatus = 'error storing response data'; |
| |
&Apache::lonnet::logthis('insert error '.$dbh->errstr()); |
| |
&Apache::lonnet::logthis("While attempting\n".$store_command); |
| |
} |
| |
} |
| |
## |
| |
## Update the students "current" data in the performance |
| |
## and parameters tables. |
| |
my ($status,undef) = &store_student_data |
| |
($sname,$sdom,$courseid, |
| |
&Apache::lonnet::convert_dump_to_currentdump(\%studentdata)); |
| |
if ($returnstatus eq 'okay' && $status ne 'okay') { |
| |
$returnstatus = 'error storing current data:'.$status; |
| |
} elsif ($status ne 'okay') { |
| |
$returnstatus .= ' error storing current data:'.$status; |
| |
} |
| |
## |
| |
## Update the students time...... |
| |
if ($returnstatus eq 'okay') { |
| |
&Apache::lonmysql::replace_row |
| |
($studentdata_table, |
| |
[$student_id,$time_of_retrieval,$time_of_retrieval,undef,undef]); |
| |
} |
| |
return $returnstatus; |
| } |
} |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| =pod |
=pod |
| |
|
| =item &ProcessStudentData() |
=item &update_student_data() |
| |
|
| Takes the course data downloaded for a student in |
Input: $sname, $sdom, $courseid |
| &DownloadCourseInformation() and breaks it up into key value pairs |
|
| to be stored in the cached data. The keys are comprised of the |
|
| $username:$domain:$keyFromCourseDatabase. The student username:domain is |
|
| stored away signifying that the student's information has been downloaded and |
|
| can be reused from cached data. |
|
| |
|
| =over 4 |
Output: $returnstatus, \%student_data |
| |
|
| Input: $cache, $courseData, $name |
$returnstatus is a string describing any errors that occured. 'okay' is the |
| |
default. |
| |
\%student_data is the data returned by a call to lonnet::currentdump. |
| |
|
| |
This subroutine loads a students data using lonnet::currentdump and inserts |
| |
it into the MySQL database. The inserts are done on two tables, |
| |
$performance_table and $parameters_table. $parameters_table holds the data |
| |
that is not included in $performance_table. See the description of |
| |
$performance_table elsewhere in this file. The INSERT calls are made |
| |
directly by this subroutine, not through lonmysql because we do a 'bulk' |
| |
insert which takes advantage of MySQLs non-SQL compliant INSERT command to |
| |
insert multiple rows at a time. If anything has gone wrong during this |
| |
process, $returnstatus is updated with a description of the error and |
| |
\%student_data is returned. |
| |
|
| |
Notice we do not insert the data and immediately query it. This means it |
| |
is possible for there to be data returned this first time that is not |
| |
available the second time. CYA. |
| |
|
| $cache: A hash pointer to store data |
=cut |
| |
|
| |
################################################ |
| |
################################################ |
| |
sub update_student_data { |
| |
my ($sname,$sdom,$courseid) = @_; |
| |
# |
| |
# Set up database names |
| |
&setup_table_names($courseid); |
| |
# |
| |
my $student_id = &get_student_id($sname,$sdom); |
| |
my $student = $sname.':'.$sdom; |
| |
# |
| |
my $returnstatus = 'okay'; |
| |
# |
| |
# Download students data |
| |
my $time_of_retrieval = time; |
| |
my @tmp = &Apache::lonnet::currentdump($courseid,$sdom,$sname); |
| |
if ((scalar(@tmp) > 0) && ($tmp[0] =~ /^error:/)) { |
| |
&Apache::lonnet::logthis('error getting data for '. |
| |
$sname.':'.$sdom.' in course '.$courseid. |
| |
':'.$tmp[0]); |
| |
$returnstatus = 'error getting data'; |
| |
return ($returnstatus,undef); |
| |
} |
| |
if (scalar(@tmp) < 1) { |
| |
return ('no data',undef); |
| |
} |
| |
my %student_data = @tmp; |
| |
my @Results = &store_student_data($sname,$sdom,$courseid,\%student_data); |
| |
# |
| |
# Set the students update time |
| |
if ($Results[0] eq 'okay') { |
| |
&Apache::lonmysql::replace_row($studentdata_table, |
| |
[$student_id,$time_of_retrieval,undef,undef,undef]); |
| |
} |
| |
# |
| |
return @Results; |
| |
} |
| |
|
| |
sub store_student_data { |
| |
my ($sname,$sdom,$courseid,$student_data) = @_; |
| |
# |
| |
my $student_id = &get_student_id($sname,$sdom); |
| |
my $student = $sname.':'.$sdom; |
| |
# |
| |
my $returnstatus = 'okay'; |
| |
# |
| |
# Remove all of the students data from the table |
| |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
$dbh->do('DELETE FROM '.$performance_table.' WHERE student_id='. |
| |
$student_id); |
| |
$dbh->do('DELETE FROM '.$parameters_table.' WHERE student_id='. |
| |
$student_id); |
| |
# |
| |
# Store away the data |
| |
# |
| |
my $starttime = Time::HiRes::time; |
| |
my $elapsed = 0; |
| |
my $rows_stored; |
| |
my $store_parameters_command = 'INSERT IGNORE INTO '.$parameters_table. |
| |
' VALUES '."\n"; |
| |
my $num_parameters = 0; |
| |
my $store_performance_command = 'INSERT IGNORE INTO '.$performance_table. |
| |
' VALUES '."\n"; |
| |
return ('error',undef) if (! defined($dbh)); |
| |
while (my ($current_symb,$param_hash) = each(%{$student_data})) { |
| |
# |
| |
# make sure the symb is set up properly |
| |
my $symb_id = &get_symb_id($current_symb); |
| |
# |
| |
# Load data into the tables |
| |
while (my ($parameter,$value) = each(%$param_hash)) { |
| |
my $newstring; |
| |
if ($parameter !~ /(timestamp|resource\.(.*)\.(solved|tries|awarded|award|awarddetail|previous))/) { |
| |
$newstring = "('".join("','", |
| |
$symb_id,$student_id, |
| |
$parameter)."',". |
| |
$dbh->quote($value)."),\n"; |
| |
$num_parameters ++; |
| |
if ($newstring !~ /''/) { |
| |
$store_parameters_command .= $newstring; |
| |
$rows_stored++; |
| |
} |
| |
} |
| |
next if ($parameter !~ /^resource\.(.*)\.solved$/); |
| |
# |
| |
my $part = $1; |
| |
my $part_id = &get_part_id($part); |
| |
next if (!defined($part_id)); |
| |
my $solved = $value; |
| |
my $tries = $param_hash->{'resource.'.$part.'.tries'}; |
| |
my $awarded = $param_hash->{'resource.'.$part.'.awarded'}; |
| |
my $award = $param_hash->{'resource.'.$part.'.award'}; |
| |
my $awarddetail = $param_hash->{'resource.'.$part.'.awarddetail'}; |
| |
my $timestamp = $param_hash->{'timestamp'}; |
| |
# |
| |
$solved = '' if (! defined($solved)); |
| |
$tries = '' if (! defined($tries)); |
| |
$awarded = '' if (! defined($awarded)); |
| |
$award = '' if (! defined($award)); |
| |
$awarddetail = '' if (! defined($awarddetail)); |
| |
$newstring = "('".join("','",$symb_id,$student_id,$part_id,$part, |
| |
$solved,$tries,$awarded,$award, |
| |
$awarddetail,$timestamp)."'),\n"; |
| |
$store_performance_command .= $newstring; |
| |
$rows_stored++; |
| |
} |
| |
} |
| |
chop $store_parameters_command; |
| |
chop $store_parameters_command; |
| |
chop $store_performance_command; |
| |
chop $store_performance_command; |
| |
my $start = Time::HiRes::time; |
| |
$dbh->do($store_performance_command); |
| |
if ($dbh->err()) { |
| |
&Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr()); |
| |
&Apache::lonnet::logthis('command = '.$store_performance_command); |
| |
$returnstatus = 'error: unable to insert performance into database'; |
| |
return ($returnstatus,$student_data); |
| |
} |
| |
$dbh->do($store_parameters_command) if ($num_parameters>0); |
| |
if ($dbh->err()) { |
| |
&Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr()); |
| |
&Apache::lonnet::logthis('command = '.$store_parameters_command); |
| |
&Apache::lonnet::logthis('rows_stored = '.$rows_stored); |
| |
&Apache::lonnet::logthis('student_id = '.$student_id); |
| |
$returnstatus = 'error: unable to insert parameters into database'; |
| |
return ($returnstatus,$student_data); |
| |
} |
| |
$elapsed += Time::HiRes::time - $start; |
| |
return ($returnstatus,$student_data); |
| |
} |
| |
|
| $courseData: A hash pointer that points to the course data downloaded for a |
###################################### |
| student. |
###################################### |
| |
|
| $name: username:domain |
=pod |
| |
|
| Output: None |
=item &ensure_tables_are_set_up($courseid) |
| |
|
| *NOTE: There is no output, but an error message is stored away in the cache |
Checks to be sure the MySQL tables for the given class are set up. |
| data. This is checked in &FormatStudentData(). The key username:domain:error |
If $courseid is omitted it will be obtained from the environment. |
| will only exist if an error occured. The error is an error from |
|
| &DownloadCourseInformation(). |
|
| |
|
| =back |
Returns nothing on success and 'error' on failure |
| |
|
| =cut |
=cut |
| |
|
| sub ProcessStudentData { |
###################################### |
| my ($cache,$courseData,$name)=@_; |
###################################### |
| |
sub ensure_tables_are_set_up { |
| if($courseData->{'UpToDate'} eq 'true') { |
my ($courseid) = @_; |
| $cache->{$name.':lastDownloadTime'}=$courseData->{'lastDownloadTime'}; |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| if($courseData->{'lastDownloadTime'} eq 'Not downloaded') { |
# |
| $cache->{$name.':updateTime'} = ' Not updated'; |
# Clean out package variables |
| } else { |
&setup_table_names($courseid); |
| $cache->{$name.':updateTime'}= |
# |
| localtime($courseData->{'lastDownloadTime'}); |
# if the tables do not exist, make them |
| |
my @CurrentTable = &Apache::lonmysql::tables_in_db(); |
| |
my ($found_symb,$found_student,$found_part,$found_studentdata, |
| |
$found_performance,$found_parameters,$found_fulldump_part, |
| |
$found_fulldump_response,$found_fulldump_timestamp); |
| |
foreach (@CurrentTable) { |
| |
$found_symb = 1 if ($_ eq $symb_table); |
| |
$found_student = 1 if ($_ eq $student_table); |
| |
$found_part = 1 if ($_ eq $part_table); |
| |
$found_studentdata = 1 if ($_ eq $studentdata_table); |
| |
$found_performance = 1 if ($_ eq $performance_table); |
| |
$found_parameters = 1 if ($_ eq $parameters_table); |
| |
$found_fulldump_part = 1 if ($_ eq $fulldump_part_table); |
| |
$found_fulldump_response = 1 if ($_ eq $fulldump_response_table); |
| |
$found_fulldump_timestamp = 1 if ($_ eq $fulldump_timestamp_table); |
| |
} |
| |
if (!$found_symb || !$found_studentdata || |
| |
!$found_student || !$found_part || |
| |
!$found_performance || !$found_parameters || |
| |
!$found_fulldump_part || !$found_fulldump_response || |
| |
!$found_fulldump_timestamp ) { |
| |
if (&init_dbs($courseid)) { |
| |
return 'error'; |
| } |
} |
| return; |
|
| } |
} |
| |
} |
| |
|
| my @courseKeys = keys(%$courseData); |
################################################ |
| |
################################################ |
| |
|
| foreach (@courseKeys) { |
=pod |
| if(/^(con_lost|error|no_such_host)/i) { |
|
| $cache->{$name.':error'}='Could not download course data.'; |
|
| return; |
|
| } |
|
| } |
|
| |
|
| $cache->{$name.':lastDownloadTime'}=$courseData->{'lastDownloadTime'}; |
=item &ensure_current_data() |
| if($courseData->{'lastDownloadTime'} eq 'Not downloaded') { |
|
| $cache->{$name.':updateTime'} = ' Not updated'; |
Input: $sname, $sdom, $courseid |
| } else { |
|
| $cache->{$name.':updateTime'}= |
Output: $status, $data |
| localtime($courseData->{'lastDownloadTime'}); |
|
| |
This routine ensures the data for a given student is up to date. |
| |
The $studentdata_table is queried to determine the time of the last update. |
| |
If the students data is out of date, &update_student_data() is called. |
| |
The return values from the call to &update_student_data() are returned. |
| |
|
| |
=cut |
| |
|
| |
################################################ |
| |
################################################ |
| |
sub ensure_current_data { |
| |
my ($sname,$sdom,$courseid) = @_; |
| |
my $status = 'okay'; # return value |
| |
# |
| |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| |
&ensure_tables_are_set_up($courseid); |
| |
# |
| |
# Get the update time for the user |
| |
my $updatetime = 0; |
| |
my $modifiedtime = &Apache::lonnet::GetFileTimestamp |
| |
($sdom,$sname,$courseid.'.db', |
| |
$Apache::lonnet::perlvar{'lonUsersDir'}); |
| |
# |
| |
my $student_id = &get_student_id($sname,$sdom); |
| |
my @Result = &Apache::lonmysql::get_rows($studentdata_table, |
| |
"student_id ='$student_id'"); |
| |
my $data = undef; |
| |
if (@Result) { |
| |
$updatetime = $Result[0]->[1]; |
| } |
} |
| foreach (@courseKeys) { |
if ($modifiedtime > $updatetime) { |
| $cache->{$name.':'.$_}=$courseData->{$_}; |
($status,$data) = &update_student_data($sname,$sdom,$courseid); |
| } |
} |
| |
return ($status,$data); |
| return; |
|
| } |
} |
| |
|
| sub LoadDiscussion { |
################################################ |
| my ( $courseID)=@_; |
################################################ |
| my %Discuss=(); |
|
| my %contrib=&Apache::lonnet::dump( |
|
| $courseID, |
|
| $ENV{'course.'.$courseID.'.domain'}, |
|
| $ENV{'course.'.$courseID.'.num'}); |
|
| |
|
| #my %contrib=&DownloadCourseInformation($name, $courseID, 0); |
|
| |
|
| foreach my $temp(keys %contrib) { |
=pod |
| if ($temp=~/^version/) { |
|
| my $ver=$contrib{$temp}; |
|
| my ($dummy,$prb)=split(':',$temp); |
|
| for (my $idx=1; $idx<=$ver; $idx++ ) { |
|
| my $name=$contrib{"$idx:$prb:sendername"}; |
|
| $Discuss{"$name:$prb"}=$idx; |
|
| } |
|
| } |
|
| } |
|
| |
|
| return \%Discuss; |
=item &ensure_current_full_data($sname,$sdom,$courseid) |
| |
|
| |
Input: $sname, $sdom, $courseid |
| |
|
| |
Output: $status |
| |
|
| |
This routine ensures the fulldata (the data from a lonnet::dump, not a |
| |
lonnet::currentdump) for a given student is up to date. |
| |
The $studentdata_table is queried to determine the time of the last update. |
| |
If the students fulldata is out of date, &update_full_student_data() is |
| |
called. |
| |
|
| |
The return value from the call to &update_full_student_data() is returned. |
| |
|
| |
=cut |
| |
|
| |
################################################ |
| |
################################################ |
| |
sub ensure_current_full_data { |
| |
my ($sname,$sdom,$courseid) = @_; |
| |
my $status = 'okay'; # return value |
| |
# |
| |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| |
&ensure_tables_are_set_up($courseid); |
| |
# |
| |
# Get the update time for the user |
| |
my $modifiedtime = &Apache::lonnet::GetFileTimestamp |
| |
($sdom,$sname,$courseid.'.db', |
| |
$Apache::lonnet::perlvar{'lonUsersDir'}); |
| |
# |
| |
my $student_id = &get_student_id($sname,$sdom); |
| |
my @Result = &Apache::lonmysql::get_rows($studentdata_table, |
| |
"student_id ='$student_id'"); |
| |
my $updatetime; |
| |
if (@Result && ref($Result[0]) eq 'ARRAY') { |
| |
$updatetime = $Result[0]->[2]; |
| |
} |
| |
if (! defined($updatetime) || $modifiedtime > $updatetime) { |
| |
$status = &update_full_student_data($sname,$sdom,$courseid); |
| |
} |
| |
return $status; |
| } |
} |
| |
|
| # ----- END PROCESSING FUNCTIONS --------------------------------------- |
################################################ |
| |
################################################ |
| |
|
| =pod |
=pod |
| |
|
| =head1 HELPER FUNCTIONS |
=item &get_student_data_from_performance_cache() |
| |
|
| |
Input: $sname, $sdom, $symb, $courseid |
| |
|
| |
Output: hash reference containing the data for the given student. |
| |
If $symb is undef, all the students data is returned. |
| |
|
| These are just a couple of functions do various odd and end |
This routine is the heart of the local caching system. See the description |
| jobs. |
of $performance_table, $symb_table, $student_table, and $part_table. The |
| |
main task is building the MySQL request. The tables appear in the request |
| |
in the order in which they should be parsed by MySQL. When searching |
| |
on a student the $student_table is used to locate the 'student_id'. All |
| |
rows in $performance_table which have a matching 'student_id' are returned, |
| |
with data from $part_table and $symb_table which match the entries in |
| |
$performance_table, 'part_id' and 'symb_id'. When searching on a symb, |
| |
the $symb_table is processed first, with matching rows grabbed from |
| |
$performance_table and filled in from $part_table and $student_table in |
| |
that order. |
| |
|
| |
Running 'EXPLAIN ' on the 'SELECT' statements generated can be quite |
| |
interesting, especially if you play with the order the tables are listed. |
| |
|
| =cut |
=cut |
| |
|
| # ----- HELPER FUNCTIONS ----------------------------------------------- |
################################################ |
| |
################################################ |
| |
sub get_student_data_from_performance_cache { |
| |
my ($sname,$sdom,$symb,$courseid)=@_; |
| |
my $student = $sname.':'.$sdom if (defined($sname) && defined($sdom)); |
| |
&setup_table_names($courseid); |
| |
# |
| |
# Return hash |
| |
my $studentdata; |
| |
# |
| |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
my $request = "SELECT ". |
| |
"d.symb,a.part,a.solved,a.tries,a.awarded,a.award,a.awarddetail,". |
| |
"a.timestamp "; |
| |
if (defined($student)) { |
| |
$request .= "FROM $student_table AS b ". |
| |
"LEFT JOIN $performance_table AS a ON b.student_id=a.student_id ". |
| |
# "LEFT JOIN $part_table AS c ON c.part_id = a.part_id ". |
| |
"LEFT JOIN $symb_table AS d ON d.symb_id = a.symb_id ". |
| |
"WHERE student='$student'"; |
| |
if (defined($symb) && $symb ne '') { |
| |
$request .= " AND d.symb=".$dbh->quote($symb); |
| |
} |
| |
} elsif (defined($symb) && $symb ne '') { |
| |
$request .= "FROM $symb_table as d ". |
| |
"LEFT JOIN $performance_table AS a ON d.symb_id=a.symb_id ". |
| |
# "LEFT JOIN $part_table AS c ON c.part_id = a.part_id ". |
| |
"LEFT JOIN $student_table AS b ON b.student_id = a.student_id ". |
| |
"WHERE symb='".$dbh->quote($symb)."'"; |
| |
} |
| |
my $starttime = Time::HiRes::time; |
| |
my $rows_retrieved = 0; |
| |
my $sth = $dbh->prepare($request); |
| |
$sth->execute(); |
| |
if ($sth->err()) { |
| |
&Apache::lonnet::logthis("Unable to execute MySQL request:"); |
| |
&Apache::lonnet::logthis("\n".$request."\n"); |
| |
&Apache::lonnet::logthis("error is:".$sth->errstr()); |
| |
return undef; |
| |
} |
| |
foreach my $row (@{$sth->fetchall_arrayref}) { |
| |
$rows_retrieved++; |
| |
my ($symb,$part,$solved,$tries,$awarded,$award,$awarddetail,$time) = |
| |
(@$row); |
| |
my $base = 'resource.'.$part; |
| |
$studentdata->{$symb}->{$base.'.solved'} = $solved; |
| |
$studentdata->{$symb}->{$base.'.tries'} = $tries; |
| |
$studentdata->{$symb}->{$base.'.awarded'} = $awarded; |
| |
$studentdata->{$symb}->{$base.'.award'} = $award; |
| |
$studentdata->{$symb}->{$base.'.awarddetail'} = $awarddetail; |
| |
$studentdata->{$symb}->{'timestamp'} = $time if (defined($time) && $time ne ''); |
| |
} |
| |
## Get misc parameters |
| |
$request = 'SELECT c.symb,a.parameter,a.value '. |
| |
"FROM $student_table AS b ". |
| |
"LEFT JOIN $parameters_table AS a ON b.student_id=a.student_id ". |
| |
"LEFT JOIN $symb_table AS c ON c.symb_id = a.symb_id ". |
| |
"WHERE student='$student'"; |
| |
if (defined($symb) && $symb ne '') { |
| |
$request .= " AND c.symb=".$dbh->quote($symb); |
| |
} |
| |
$sth = $dbh->prepare($request); |
| |
$sth->execute(); |
| |
if ($sth->err()) { |
| |
&Apache::lonnet::logthis("Unable to execute MySQL request:"); |
| |
&Apache::lonnet::logthis("\n".$request."\n"); |
| |
&Apache::lonnet::logthis("error is:".$sth->errstr()); |
| |
if (defined($symb) && $symb ne '') { |
| |
$studentdata = $studentdata->{$symb}; |
| |
} |
| |
return $studentdata; |
| |
} |
| |
# |
| |
foreach my $row (@{$sth->fetchall_arrayref}) { |
| |
$rows_retrieved++; |
| |
my ($symb,$parameter,$value) = (@$row); |
| |
$studentdata->{$symb}->{$parameter} = $value; |
| |
} |
| |
# |
| |
if (defined($symb) && $symb ne '') { |
| |
$studentdata = $studentdata->{$symb}; |
| |
} |
| |
return $studentdata; |
| |
} |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| =pod |
=pod |
| |
|
| =item &ProcessFullName() |
=item &get_current_state() |
| |
|
| Takes lastname, generation, firstname, and middlename (or some partial |
Input: $sname,$sdom,$symb,$courseid |
| set of this data) and returns the full name version as a string. Format |
|
| is Lastname generation, firstname middlename or a subset of this. |
|
| |
|
| =cut |
Output: Described below |
| |
|
| sub ProcessFullName { |
Retrieve the current status of a students performance. $sname and |
| my ($lastname, $generation, $firstname, $middlename)=@_; |
$sdom are the only required parameters. If $symb is undef the results |
| my $Str = ''; |
of an &Apache::lonnet::currentdump() will be returned. |
| |
If $courseid is undef it will be retrieved from the environment. |
| |
|
| |
The return structure is based on &Apache::lonnet::currentdump. If |
| |
$symb is unspecified, all the students data is returned in a hash of |
| |
the form: |
| |
( |
| |
symb1 => { param1 => value1, param2 => value2 ... }, |
| |
symb2 => { param1 => value1, param2 => value2 ... }, |
| |
) |
| |
|
| |
If $symb is specified, a hash of |
| |
( |
| |
param1 => value1, |
| |
param2 => value2, |
| |
) |
| |
is returned. |
| |
|
| if($lastname ne '') { |
If no data is found for $symb, or if the student has no performance data, |
| $Str .= $lastname.' '; |
an empty list is returned. |
| if($generation ne '') { |
|
| $Str .= $generation; |
=cut |
| } else { |
|
| chop($Str); |
################################################ |
| } |
################################################ |
| $Str .= ', '; |
sub get_current_state { |
| if($firstname ne '') { |
my ($sname,$sdom,$symb,$courseid,$forcedownload)=@_; |
| $Str .= $firstname.' '; |
# |
| } |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| if($middlename ne '') { |
# |
| $Str .= $middlename; |
return () if (! defined($sname) || ! defined($sdom)); |
| } else { |
# |
| chop($Str); |
my ($status,$data) = &ensure_current_data($sname,$sdom,$courseid); |
| if($firstname eq '') { |
# &Apache::lonnet::logthis |
| chop($Str); |
# ('sname = '.$sname. |
| } |
# ' domain = '.$sdom. |
| } |
# ' status = '.$status. |
| |
# ' data is '.(defined($data)?'defined':'undefined')); |
| |
# while (my ($symb,$hash) = each(%$data)) { |
| |
# &Apache::lonnet::logthis($symb."\n----------------------------------"); |
| |
# while (my ($key,$value) = each (%$hash)) { |
| |
# &Apache::lonnet::logthis(" ".$key." = ".$value); |
| |
# } |
| |
# } |
| |
# |
| |
if (defined($data) && defined($symb) && ref($data->{$symb})) { |
| |
return %{$data->{$symb}}; |
| |
} elsif (defined($data) && ! defined($symb) && ref($data)) { |
| |
return %$data; |
| |
} |
| |
if ($status eq 'no data') { |
| |
return (); |
| } else { |
} else { |
| if($firstname ne '') { |
if ($status ne 'okay' && $status ne '') { |
| $Str .= $firstname.' '; |
&Apache::lonnet::logthis('status = '.$status); |
| } |
return (); |
| if($middlename ne '') { |
} |
| $Str .= $middlename.' '; |
my $returnhash = &get_student_data_from_performance_cache($sname,$sdom, |
| } |
$symb,$courseid); |
| if($generation ne '') { |
return %$returnhash if (defined($returnhash)); |
| $Str .= $generation; |
|
| } else { |
|
| chop($Str); |
|
| } |
|
| } |
} |
| |
return (); |
| return $Str; |
|
| } |
} |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| =pod |
=pod |
| |
|
| =item &TestCacheData() |
=item &get_problem_statistics() |
| |
|
| Determine if the cache database can be accessed with a tie. It waits up to |
Gather data on a given problem. The database is assumed to be |
| ten seconds before returning failure. This function exists to help with |
populated and all local caching variables are assumed to be set |
| the problems with stopping the data download. When an abort occurs and the |
properly. This means you need to call &ensure_current_data for |
| user quickly presses a form button and httpd child is created. This |
the students you are concerned with prior to calling this routine. |
| child needs to wait for the other to finish (hopefully within ten seconds). |
|
| |
Inputs: $students, $symb, $part, $courseid |
| |
|
| =over 4 |
=over 4 |
| |
|
| Input: $ChartDB |
=item $students is an array of hash references. |
| |
Each hash must contain at least the 'username' and 'domain' of a student. |
| |
|
| |
=item $symb is the symb for the problem. |
| |
|
| |
=item $part is the part id you need statistics for |
| |
|
| |
=item $courseid is the course id, of course! |
| |
|
| |
=back |
| |
|
| |
Outputs: See the code for up to date information. A hash reference is |
| |
returned. The hash has the following keys defined: |
| |
|
| $ChartDB: The name of the cache database to be opened |
=over 4 |
| |
|
| Output: -1, 0, 1 |
=item num_students The number of students attempting the problem |
| |
|
| |
=item tries The total number of tries for the students |
| |
|
| |
=item max_tries The maximum number of tries taken |
| |
|
| |
=item mean_tries The average number of tries |
| |
|
| |
=item num_solved The number of students able to solve the problem |
| |
|
| |
=item num_override The number of students whose answer is 'correct_by_override' |
| |
|
| |
=item deg_of_diff The degree of difficulty of the problem |
| |
|
| |
=item std_tries The standard deviation of the number of tries |
| |
|
| |
=item skew_tries The skew of the number of tries |
| |
|
| -1: Couldn't tie database |
=item per_wrong The number of students attempting the problem who were not |
| 0: Use cached data |
able to answer it correctly. |
| 1: New cache database created, use that. |
|
| |
|
| =back |
=back |
| |
|
| =cut |
=cut |
| |
|
| sub TestCacheData { |
################################################ |
| my ($ChartDB,$isRecalculate,$totalDelay)=@_; |
################################################ |
| my $isCached=-1; |
sub get_problem_statistics { |
| my %testData; |
my ($students,$symb,$part,$courseid) = @_; |
| my $tieTries=0; |
return if (! defined($symb) || ! defined($part)); |
| |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| |
# |
| |
&setup_table_names($courseid); |
| |
my $symb_id = &get_symb_id($symb); |
| |
my $part_id = &get_part_id($part); |
| |
my $stats_table = $courseid.'_problem_stats'; |
| |
# |
| |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
return undef if (! defined($dbh)); |
| |
# |
| |
# A) Number of Students attempting problem |
| |
# B) Total number of tries of students attempting problem |
| |
# C) Mod (largest number of tries for solving the problem) |
| |
# D) Mean (average number of tries for solving the problem) |
| |
# E) Number of students to solve the problem |
| |
# F) Number of students to solve the problem by override |
| |
# G) Number of students unable to solve the problem |
| |
# H) Degree of difficulty : 1-(E+F)/B |
| |
# I) Standard deviation of number of tries |
| |
# J) Skew of tries: sqrt(sum(Xi-D)^3)/A |
| |
# |
| |
$dbh->do('DROP TABLE '.$stats_table); # May return an error |
| |
my $request = |
| |
'CREATE TEMPORARY TABLE '.$stats_table. |
| |
' SELECT student_id,solved,award,tries FROM '.$performance_table. |
| |
' WHERE symb_id='.$symb_id.' AND part_id='.$part_id; |
| |
if (defined($students)) { |
| |
$request .= ' AND ('. |
| |
join(' OR ', map {'student_id='. |
| |
&get_student_id($_->{'username'}, |
| |
$_->{'domain'}) |
| |
} @$students |
| |
).')'; |
| |
} |
| |
# &Apache::lonnet::logthis($request); |
| |
$dbh->do($request); |
| |
my ($num,$tries,$mod,$mean,$STD) = &execute_SQL_request |
| |
($dbh, |
| |
'SELECT COUNT(*),SUM(tries),MAX(tries),AVG(tries),STD(tries) FROM '. |
| |
$stats_table); |
| |
my ($Solved) = &execute_SQL_request($dbh,'SELECT COUNT(tries) FROM '. |
| |
$stats_table. |
| |
" WHERE solved='correct_by_student' OR solved='correct_by_scantron'"); |
| |
my ($solved) = &execute_SQL_request($dbh,'SELECT COUNT(tries) FROM '. |
| |
$stats_table. |
| |
" WHERE solved='correct_by_override'"); |
| |
$num = 0 if (! defined($num)); |
| |
$tries = 0 if (! defined($tries)); |
| |
$mod = 0 if (! defined($mod)); |
| |
$STD = 0 if (! defined($STD)); |
| |
$Solved = 0 if (! defined($Solved)); |
| |
$solved = 0 if (! defined($solved)); |
| |
# |
| |
my $DegOfDiff = 'nan'; |
| |
$DegOfDiff = 1-($Solved)/$tries if ($tries>0); |
| |
|
| |
my $SKEW = 'nan'; |
| |
my $wrongpercent = 0; |
| |
if ($num > 0) { |
| |
($SKEW) = &execute_SQL_request($dbh,'SELECT SQRT(SUM('. |
| |
'POWER(tries - '.$STD.',3)'. |
| |
'))/'.$num.' FROM '.$stats_table); |
| |
$wrongpercent=int(10*100*($num-$Solved+$solved)/$num)/10; |
| |
} |
| |
# |
| |
$dbh->do('DROP TABLE '.$stats_table); # May return an error |
| |
# |
| |
# Store in metadata |
| |
# |
| |
if ($num) { |
| |
my %storestats=(); |
| |
|
| |
my $urlres=(&Apache::lonnet::decode_symb($symb))[2]; |
| |
|
| |
$storestats{$courseid.'___'.$urlres.'___timestamp'}=time; |
| |
$storestats{$courseid.'___'.$urlres.'___stdno'}=$num; |
| |
$storestats{$courseid.'___'.$urlres.'___avetries'}=$mean; |
| |
$storestats{$courseid.'___'.$urlres.'___difficulty'}=$DegOfDiff; |
| |
|
| if(!defined($totalDelay)) { |
$urlres=~/^(\w+)\/(\w+)/; |
| $totalDelay = 10; |
&Apache::lonnet::put('nohist_resevaldata',\%storestats,$1,$2); |
| } |
} |
| |
# |
| |
# Return result |
| |
# |
| |
return { num_students => $num, |
| |
tries => $tries, |
| |
max_tries => $mod, |
| |
mean_tries => $mean, |
| |
std_tries => $STD, |
| |
skew_tries => $SKEW, |
| |
num_solved => $Solved, |
| |
num_override => $solved, |
| |
per_wrong => $wrongpercent, |
| |
deg_of_diff => $DegOfDiff }; |
| |
} |
| |
|
| if ((-e "$ChartDB") && (!$isRecalculate)) { |
sub execute_SQL_request { |
| $isCached = 1; |
my ($dbh,$request)=@_; |
| } else { |
# &Apache::lonnet::logthis($request); |
| $isCached = 0; |
my $sth = $dbh->prepare($request); |
| |
$sth->execute(); |
| |
my $row = $sth->fetchrow_arrayref(); |
| |
if (ref($row) eq 'ARRAY' && scalar(@$row)>0) { |
| |
return @$row; |
| } |
} |
| |
return (); |
| |
} |
| |
|
| while($tieTries < $totalDelay) { |
sub get_student_data { |
| my $result=0; |
my ($students,$courseid) = @_; |
| if($isCached) { |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| $result=tie(%testData,'GDBM_File',$ChartDB,&GDBM_READER(),0640); |
&setup_table_names($courseid); |
| } else { |
my $dbh = &Apache::lonmysql::get_dbh(); |
| $result=tie(%testData,'GDBM_File',$ChartDB,&GDBM_NEWDB(),0640); |
return undef if (! defined($dbh)); |
| } |
my $request = 'SELECT '. |
| if($result) { |
'student_id, student '. |
| last; |
'FROM '.$student_table; |
| } |
if (defined($students)) { |
| $tieTries++; |
$request .= ' WHERE ('. |
| sleep 1; |
join(' OR ', map {'student_id='. |
| |
&get_student_id($_->{'username'}, |
| |
$_->{'domain'}) |
| |
} @$students |
| |
).')'; |
| |
} |
| |
$request.= ' ORDER BY student_id'; |
| |
my $sth = $dbh->prepare($request); |
| |
$sth->execute(); |
| |
if ($dbh->err) { |
| |
&Apache::lonnet::logthis('error = '.$dbh->errstr()); |
| |
return undef; |
| |
} |
| |
my $dataset = $sth->fetchall_arrayref(); |
| |
if (ref($dataset) eq 'ARRAY' && scalar(@$dataset)>0) { |
| |
return $dataset; |
| |
} |
| |
} |
| |
|
| |
sub RD_student_id { return 0; } |
| |
sub RD_awarddetail { return 1; } |
| |
sub RD_response_eval { return 2; } |
| |
sub RD_submission { return 3; } |
| |
sub RD_timestamp { return 4; } |
| |
sub RD_tries { return 5; } |
| |
sub RD_sname { return 6; } |
| |
|
| |
sub get_response_data { |
| |
my ($students,$symb,$response,$courseid) = @_; |
| |
return undef if (! defined($symb) || |
| |
! defined($response)); |
| |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| |
# |
| |
&setup_table_names($courseid); |
| |
my $symb_id = &get_symb_id($symb); |
| |
my $response_id = &get_part_id($response); |
| |
# |
| |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
return undef if (! defined($dbh)); |
| |
my $request = 'SELECT '. |
| |
'a.student_id, a.awarddetail, a.response_specific_value, '. |
| |
'a.submission, b.timestamp, c.tries, d.student '. |
| |
'FROM '.$fulldump_response_table.' AS a '. |
| |
'LEFT JOIN '.$fulldump_timestamp_table.' AS b '. |
| |
'ON a.symb_id=b.symb_id AND a.student_id=b.student_id AND '. |
| |
'a.transaction = b.transaction '. |
| |
'LEFT JOIN '.$fulldump_part_table.' AS c '. |
| |
'ON a.symb_id=c.symb_id AND a.student_id=c.student_id AND '. |
| |
'a.part_id=c.part_id AND a.transaction = c.transaction '. |
| |
'LEFT JOIN '.$student_table.' AS d '. |
| |
'ON a.student_id=d.student_id '. |
| |
'WHERE '. |
| |
'a.symb_id='.$symb_id.' AND a.response_id='.$response_id; |
| |
if (defined($students)) { |
| |
$request .= ' AND ('. |
| |
join(' OR ', map {'a.student_id='. |
| |
&get_student_id($_->{'username'}, |
| |
$_->{'domain'}) |
| |
} @$students |
| |
).')'; |
| |
} |
| |
$request .= ' ORDER BY b.timestamp'; |
| |
# &Apache::lonnet::logthis("request =\n".$request); |
| |
my $sth = $dbh->prepare($request); |
| |
$sth->execute(); |
| |
if ($dbh->err) { |
| |
&Apache::lonnet::logthis('error = '.$dbh->errstr()); |
| |
return undef; |
| |
} |
| |
my $dataset = $sth->fetchall_arrayref(); |
| |
if (ref($dataset) eq 'ARRAY' && scalar(@$dataset)>0) { |
| |
return $dataset; |
| |
} |
| |
} |
| |
|
| |
sub RT_student_id { return 0; } |
| |
sub RT_awarded { return 1; } |
| |
sub RT_tries { return 2; } |
| |
sub RT_timestamp { return 3; } |
| |
|
| |
sub get_response_time_data { |
| |
my ($students,$symb,$part,$courseid) = @_; |
| |
return undef if (! defined($symb) || |
| |
! defined($part)); |
| |
$courseid = $ENV{'request.course.id'} if (! defined($courseid)); |
| |
# |
| |
&setup_table_names($courseid); |
| |
my $symb_id = &get_symb_id($symb); |
| |
my $part_id = &get_part_id($part); |
| |
# |
| |
my $dbh = &Apache::lonmysql::get_dbh(); |
| |
return undef if (! defined($dbh)); |
| |
my $request = 'SELECT '. |
| |
'a.student_id, a.awarded, a.tries, b.timestamp '. |
| |
'FROM '.$fulldump_part_table.' AS a '. |
| |
'NATURAL LEFT JOIN '.$fulldump_timestamp_table.' AS b '. |
| |
# 'ON a.symb_id=b.symb_id AND a.student_id=b.student_id AND '. |
| |
# 'a.transaction = b.transaction '. |
| |
'WHERE '. |
| |
'a.symb_id='.$symb_id.' AND a.part_id='.$part_id; |
| |
if (defined($students)) { |
| |
$request .= ' AND ('. |
| |
join(' OR ', map {'a.student_id='. |
| |
&get_student_id($_->{'username'}, |
| |
$_->{'domain'}) |
| |
} @$students |
| |
).')'; |
| |
} |
| |
$request .= ' ORDER BY b.timestamp'; |
| |
# &Apache::lonnet::logthis("request =\n".$request); |
| |
my $sth = $dbh->prepare($request); |
| |
$sth->execute(); |
| |
if ($dbh->err) { |
| |
&Apache::lonnet::logthis('error = '.$dbh->errstr()); |
| |
return undef; |
| } |
} |
| if($tieTries >= $totalDelay) { |
my $dataset = $sth->fetchall_arrayref(); |
| return -1; |
if (ref($dataset) eq 'ARRAY' && scalar(@$dataset)>0) { |
| |
return $dataset; |
| } |
} |
| |
|
| untie(%testData); |
} |
| |
|
| |
################################################ |
| |
################################################ |
| |
|
| |
=pod |
| |
|
| |
=item &setup_table_names() |
| |
|
| |
input: course id |
| |
|
| return $isCached; |
output: none |
| |
|
| |
Cleans up the package variables for local caching. |
| |
|
| |
=cut |
| |
|
| |
################################################ |
| |
################################################ |
| |
sub setup_table_names { |
| |
my ($courseid) = @_; |
| |
if (! defined($courseid)) { |
| |
$courseid = $ENV{'request.course.id'}; |
| |
} |
| |
# |
| |
if (! defined($current_course) || $current_course ne $courseid) { |
| |
# Clear out variables |
| |
$have_read_part_table = 0; |
| |
undef(%ids_by_part); |
| |
undef(%parts_by_id); |
| |
$have_read_symb_table = 0; |
| |
undef(%ids_by_symb); |
| |
undef(%symbs_by_id); |
| |
$have_read_student_table = 0; |
| |
undef(%ids_by_student); |
| |
undef(%students_by_id); |
| |
# |
| |
$current_course = $courseid; |
| |
} |
| |
# |
| |
# Set up database names |
| |
my $base_id = $courseid; |
| |
$symb_table = $base_id.'_'.'symb'; |
| |
$part_table = $base_id.'_'.'part'; |
| |
$student_table = $base_id.'_'.'student'; |
| |
$studentdata_table = $base_id.'_'.'studentdata'; |
| |
$performance_table = $base_id.'_'.'performance'; |
| |
$parameters_table = $base_id.'_'.'parameters'; |
| |
$fulldump_part_table = $base_id.'_'.'partdata'; |
| |
$fulldump_response_table = $base_id.'_'.'responsedata'; |
| |
$fulldump_timestamp_table = $base_id.'_'.'timestampdata'; |
| |
# |
| |
@Tables = ( |
| |
$symb_table, |
| |
$part_table, |
| |
$student_table, |
| |
$studentdata_table, |
| |
$performance_table, |
| |
$parameters_table, |
| |
$fulldump_part_table, |
| |
$fulldump_response_table, |
| |
$fulldump_timestamp_table, |
| |
); |
| |
return; |
| } |
} |
| |
|
| sub GetFileTimestamp { |
################################################ |
| my ($studentDomain,$studentName,$filename,$root)=@_; |
################################################ |
| $studentDomain=~s/\W//g; |
|
| $studentName=~s/\W//g; |
=pod |
| my $subdir=$studentName.'__'; |
|
| $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; |
=back |
| my $proname="$studentDomain/$subdir/$studentName"; |
|
| $proname .= '/'.$filename; |
=item End of Local Data Caching Subroutines |
| my @dir = &Apache::lonnet::dirlist($proname, $studentDomain, $studentName, |
|
| $root); |
=cut |
| my $fileStat = $dir[0]; |
|
| my @stats = split('&', $fileStat); |
################################################ |
| if(@stats) { |
################################################ |
| return $stats[9]; |
|
| |
} # End scope of table identifiers |
| |
|
| |
################################################ |
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################################################ |
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|
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=pod |
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|
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=head3 Classlist Subroutines |
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|
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=item &get_classlist(); |
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|
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Retrieve the classist of a given class or of the current class. Student |
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information is returned from the classlist.db file and, if needed, |
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from the students environment. |
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|
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Optional arguments are $cid, $cdom, and $cnum (course id, course domain, |
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and course number, respectively). Any omitted arguments will be taken |
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from the current environment ($ENV{'request.course.id'}, |
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$ENV{'course.'.$cid.'.domain'}, and $ENV{'course.'.$cid.'.num'}). |
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|
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Returns a reference to a hash which contains: |
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keys '$sname:$sdom' |
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values [$sdom,$sname,$end,$start,$id,$section,$fullname,$status] |
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|
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The constant values CL_SDOM, CL_SNAME, CL_END, etc. can be used |
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as indices into the returned list to future-proof clients against |
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changes in the list order. |
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|
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=cut |
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|
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################################################ |
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################################################ |
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|
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sub CL_SDOM { return 0; } |
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sub CL_SNAME { return 1; } |
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sub CL_END { return 2; } |
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sub CL_START { return 3; } |
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sub CL_ID { return 4; } |
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sub CL_SECTION { return 5; } |
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sub CL_FULLNAME { return 6; } |
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sub CL_STATUS { return 7; } |
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|
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sub get_classlist { |
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my ($cid,$cdom,$cnum) = @_; |
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$cid = $cid || $ENV{'request.course.id'}; |
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$cdom = $cdom || $ENV{'course.'.$cid.'.domain'}; |
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$cnum = $cnum || $ENV{'course.'.$cid.'.num'}; |
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my $now = time; |
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# |
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my %classlist=&Apache::lonnet::dump('classlist',$cdom,$cnum); |
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while (my ($student,$info) = each(%classlist)) { |
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if ($student =~ /^(con_lost|error|no_such_host)/i) { |
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&Apache::lonnet::logthis('get_classlist error for '.$cid.':'.$student); |
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return undef; |
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} |
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my ($sname,$sdom) = split(/:/,$student); |
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my @Values = split(/:/,$info); |
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my ($end,$start,$id,$section,$fullname); |
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if (@Values > 2) { |
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($end,$start,$id,$section,$fullname) = @Values; |
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} else { # We have to get the data ourselves |
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($end,$start) = @Values; |
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$section = &Apache::lonnet::getsection($sdom,$sname,$cid); |
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my %info=&Apache::lonnet::get('environment', |
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['firstname','middlename', |
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'lastname','generation','id'], |
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$sdom, $sname); |
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my ($tmp) = keys(%info); |
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if ($tmp =~/^(con_lost|error|no_such_host)/i) { |
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$fullname = 'not available'; |
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$id = 'not available'; |
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&Apache::lonnet::logthis('unable to retrieve environment '. |
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'for '.$sname.':'.$sdom); |
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} else { |
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$fullname = &ProcessFullName(@info{qw/lastname generation |
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firstname middlename/}); |
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$id = $info{'id'}; |
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} |
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# Update the classlist with this students information |
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if ($fullname ne 'not available') { |
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my $enrolldata = join(':',$end,$start,$id,$section,$fullname); |
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my $reply=&Apache::lonnet::cput('classlist', |
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{$student => $enrolldata}, |
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$cdom,$cnum); |
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if ($reply !~ /^(ok|delayed)/) { |
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&Apache::lonnet::logthis('Unable to update classlist for '. |
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'student '.$sname.':'.$sdom. |
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' error:'.$reply); |
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} |
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} |
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} |
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my $status='Expired'; |
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if(((!$end) || $now < $end) && ((!$start) || ($now > $start))) { |
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$status='Active'; |
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} |
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$classlist{$student} = |
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[$sdom,$sname,$end,$start,$id,$section,$fullname,$status]; |
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} |
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if (wantarray()) { |
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return (\%classlist,['domain','username','end','start','id', |
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'section','fullname','status']); |
| } else { |
} else { |
| return -1; |
return \%classlist; |
| } |
} |
| } |
} |
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|
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Line 858 sub GetFileTimestamp {
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Line 2310 sub GetFileTimestamp {
|
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|
| 1; |
1; |
| __END__ |
__END__ |
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|
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