Annotation of loncom/homework/radiobuttonresponse.pm, revision 1.6
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3:
4: # 11/23,11/24,11/28 Gerd Kortemeyer
5:
6: package Apache::radiobuttonresponse;
7: use strict;
8:
9: sub BEGIN {
1.3 albertel 10: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
1.1 albertel 11: }
12:
13: sub start_radiobuttonresponse {
1.4 albertel 14: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 15: #when in a radiobutton response use these
16: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil'));
1.4 albertel 17: my $id = &Apache::response::start_response($parstack,$safeeval);
18: return '';
1.1 albertel 19: }
20:
21: sub end_radiobuttonresponse {
1.4 albertel 22: &Apache::response::end_response;
23: return '';
1.1 albertel 24: }
25:
26: %Apache::response::foilgroup={};
27: sub start_foilgroup {
28: %Apache::response::foilgroup={};
1.6 ! albertel 29: return '';
1.1 albertel 30: }
31:
1.5 albertel 32: sub setrandomnumber {
33: my $rndseed=&Apache::lonnet::rndseed();
34: $rndseed=unpack("%32i",$rndseed);
35: $rndseed=$rndseed
36: +&Apache::lonnet::numval($Apache::inputtags::part)
37: +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
38: srand($rndseed);
39: return '';
40: }
41:
1.4 albertel 42: #FIXME needs to stablely do random picks
1.1 albertel 43: sub end_foilgroup {
44: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
45: my $name;
46: my $result;
1.5 albertel 47: &setrandomnumber();
1.6 ! albertel 48: my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
! 49: my $count=0;
! 50: # we will add in 1 of the true statements
! 51: if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
! 52: my $answer = int(rand ($count));
! 53: &Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
1.5 albertel 54: if ($target eq 'web') {
55: $result=&displayfoils($max,$answer);
56: } elsif ( $target eq 'grade') {
57: if ( defined $ENV{'form.submit'}) {
58: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
59: if ( $response =~ /[^\s]/) {
60: my $id = $Apache::inputtags::response['-1'];
61: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
62: &Apache::lonxml::debug("submitted a $response<br>\n");
63: if ($response == $answer) {
64: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='EXACT_ANS';
65: } else {
66: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='INCORRECT';
67: }
68: }
69: }
70: }
71: return $result;
1.6 ! albertel 72: }
! 73:
! 74: sub getfoilcounts {
! 75: my ($parstack,$safeeval)=@_;
! 76: my $rrargs ='';
! 77: if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
! 78: my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
! 79: my @names = @{ $Apache::response::foilgroup{'names'} };
! 80: my $truecnt=0;
! 81: my $falsecnt=0;
! 82: my $name;
! 83:
! 84: foreach $name (@names) {
! 85: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
! 86: $truecnt++;
! 87: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
! 88: $falsecnt++;
! 89: }
! 90: }
! 91: return ($truecnt,$falsecnt,$max);
1.5 albertel 92: }
93:
94: sub displayfoils {
95: my ($max,$answer)=@_;
1.3 albertel 96: my @names = @{ $Apache::response::foilgroup{'names'} };
97: my @truelist;
98: my @falselist;
1.5 albertel 99: my $result;
100: my $name;
101:
1.3 albertel 102: foreach $name (@names) {
1.5 albertel 103: #result.="<br><b>$name</b> is <i> $Apache::response::foilgroup{$name.'.value'} </i>";
1.3 albertel 104: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
105: push (@truelist,$name);
106: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
107: push (@falselist,$name);
108: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
109: } else {
1.5 albertel 110: &Apache::lonxml::error("Unknown state $Apache::response::foilgroup{$name.'.value'} for $name in <foilgroup>");
1.3 albertel 111: }
1.1 albertel 112: }
1.3 albertel 113: my $whichtrue = rand $#truelist;
1.4 albertel 114: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
115: my @whichfalse =();
116: while ((($#whichfalse+2) < $max) && ($#falselist > -1)) {
117: my $afalse=rand $#falselist;
118: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
119: $afalse=splice(@falselist,$afalse,1);
120: &Apache::lonxml::debug("Picked $afalse");
121: push (@whichfalse,$afalse);
122: }
1.5 albertel 123: splice(@whichfalse,$answer,0,$truelist[$whichtrue]);
124: my $temp=0;
125: &Apache::lonxml::debug("the true statement is $answer");
126: foreach $name (@whichfalse) {
127: $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\">".$Apache::response::foilgroup{$name.'.text'}."</input>\n";
128: $temp++;
1.4 albertel 129: }
1.5 albertel 130: return $result."<br />";
1.1 albertel 131: }
132:
133: sub start_foil {
1.4 albertel 134: $Apache::lonxml::redirection--;
1.5 albertel 135: return '';
1.1 albertel 136: }
137:
138: sub end_foil {
139: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 140: if ($target eq 'web' || $target eq 'grade') {
141: my $args ='';
142: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
143: my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
144: push @{ $Apache::response::foilgroup{'names'} }, $name;
145: my $value = &Apache::run::run("{$args;".'return $value}',$safeeval);
146: $Apache::response::foilgroup{"$name.value"} = $value;
147: $Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack;
148: }
149:
1.4 albertel 150: $Apache::lonxml::redirection++;
151: if ($Apache::lonxml::redirection == 1) {
152: $Apache::lonxml::outputstack='';
153: }
1.1 albertel 154: return '';
155: }
156:
157: 1;
158: __END__
159:
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