--- loncom/homework/radiobuttonresponse.pm 2001/01/08 22:06:48 1.3
+++ loncom/homework/radiobuttonresponse.pm 2001/01/19 20:05:40 1.9
@@ -1,8 +1,6 @@
# The LearningOnline Network with CAPA
# mutliple choice style responses
-# 11/23,11/24,11/28 Gerd Kortemeyer
-
package Apache::radiobuttonresponse;
use strict;
@@ -11,42 +9,130 @@ sub BEGIN {
}
sub start_radiobuttonresponse {
+ my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
#when in a radiobutton response use these
&Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil'));
+ my $id = &Apache::response::start_response($parstack,$safeeval);
+ return '';
}
sub end_radiobuttonresponse {
+ &Apache::response::end_response;
+ return '';
}
%Apache::response::foilgroup={};
sub start_foilgroup {
%Apache::response::foilgroup={};
+ return '';
+}
+
+sub setrandomnumber {
+ my $rndseed=&Apache::lonnet::rndseed();
+ $rndseed=unpack("%32i",$rndseed);
+ $rndseed=$rndseed
+ +&Apache::lonnet::numval($Apache::inputtags::part)
+ +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
+ srand($rndseed);
+ return '';
}
sub end_foilgroup {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
- my $name;
+
my $result;
+ if ($target ne 'meta') {
+ my $name;
+ &setrandomnumber();
+ my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
+ my $count=0;
+ # we will add in 1 of the true statements
+ if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
+ my $answer = int(rand ($count));
+ &Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
+ if ($target eq 'web') {
+ $result=&displayfoils($max,$answer);
+ } elsif ( $target eq 'grade') {
+ if ( defined $ENV{'form.submitted'}) {
+ my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
+ if ( $response =~ /[^\s]/) {
+ my $id = $Apache::inputtags::response['-1'];
+ $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
+ &Apache::lonxml::debug("submitted a $response
\n");
+ if ($response == $answer) {
+ $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='EXACT_ANS';
+ } else {
+ $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='INCORRECT';
+ }
+ }
+ }
+ }
+ }
+ return $result;
+}
+
+sub getfoilcounts {
+ my ($parstack,$safeeval)=@_;
+ my $rrargs ='';
+ if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
+ my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
+ my @names = @{ $Apache::response::foilgroup{'names'} };
+ my $truecnt=0;
+ my $falsecnt=0;
+ my $name;
+
+ foreach $name (@names) {
+ if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
+ $truecnt++;
+ } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
+ $falsecnt++;
+ }
+ }
+ return ($truecnt,$falsecnt,$max);
+}
+
+sub displayfoils {
+ my ($max,$answer)=@_;
my @names = @{ $Apache::response::foilgroup{'names'} };
my @truelist;
my @falselist;
+ my $result;
+ my $name;
+
foreach $name (@names) {
- $result.="
$name is $Apache::response::foilgroup{$name.'.value'} ";
+ #result.="
$name is $Apache::response::foilgroup{$name.'.value'} ";
if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
push (@truelist,$name);
} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
push (@falselist,$name);
} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
} else {
- &Apache::lonxml::error("Unknow state $Apache::response::foilgroup{$name.'.value'} for $name in ");
+ &Apache::lonxml::error("Unknown state $Apache::response::foilgroup{$name.'.value'} for $name in ");
}
}
my $whichtrue = rand $#truelist;
- return $result;
+ &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
+ my @whichfalse =();
+ while ((($#whichfalse+2) < $max) && ($#falselist > -1)) {
+ my $afalse=rand $#falselist;
+ &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
+ $afalse=splice(@falselist,$afalse,1);
+ &Apache::lonxml::debug("Picked $afalse");
+ push (@whichfalse,$afalse);
+ }
+ splice(@whichfalse,$answer,0,$truelist[$whichtrue]);
+ my $temp=0;
+ &Apache::lonxml::debug("the true statement is $answer");
+ foreach $name (@whichfalse) {
+ $result.="
".$Apache::response::foilgroup{$name.'.text'}."\n";
+ $temp++;
+ }
+ return $result."
";
}
sub start_foil {
- $Apache::lonxml::redirection++;
+ $Apache::lonxml::redirection--;
+ return '';
}
sub end_foil {
@@ -61,7 +147,10 @@ sub end_foil {
$Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack;
}
- $Apache::lonxml::redirection--;
+ $Apache::lonxml::redirection++;
+ if ($Apache::lonxml::redirection == 1) {
+ $Apache::lonxml::outputstack='';
+ }
return '';
}