Annotation of loncom/homework/radiobuttonresponse.pm, revision 1.9
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3:
4: package Apache::radiobuttonresponse;
5: use strict;
6:
7: sub BEGIN {
1.3 albertel 8: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
1.1 albertel 9: }
10:
11: sub start_radiobuttonresponse {
1.4 albertel 12: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 13: #when in a radiobutton response use these
14: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil'));
1.4 albertel 15: my $id = &Apache::response::start_response($parstack,$safeeval);
16: return '';
1.1 albertel 17: }
18:
19: sub end_radiobuttonresponse {
1.4 albertel 20: &Apache::response::end_response;
21: return '';
1.1 albertel 22: }
23:
24: %Apache::response::foilgroup={};
25: sub start_foilgroup {
26: %Apache::response::foilgroup={};
1.6 albertel 27: return '';
1.1 albertel 28: }
29:
1.5 albertel 30: sub setrandomnumber {
31: my $rndseed=&Apache::lonnet::rndseed();
32: $rndseed=unpack("%32i",$rndseed);
33: $rndseed=$rndseed
34: +&Apache::lonnet::numval($Apache::inputtags::part)
35: +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
36: srand($rndseed);
37: return '';
38: }
39:
1.1 albertel 40: sub end_foilgroup {
41: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.7 albertel 42:
1.1 albertel 43: my $result;
1.7 albertel 44: if ($target ne 'meta') {
45: my $name;
46: &setrandomnumber();
47: my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
48: my $count=0;
49: # we will add in 1 of the true statements
50: if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
51: my $answer = int(rand ($count));
52: &Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
53: if ($target eq 'web') {
54: $result=&displayfoils($max,$answer);
55: } elsif ( $target eq 'grade') {
1.8 albertel 56: if ( defined $ENV{'form.submitted'}) {
1.7 albertel 57: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
58: if ( $response =~ /[^\s]/) {
59: my $id = $Apache::inputtags::response['-1'];
60: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
61: &Apache::lonxml::debug("submitted a $response<br>\n");
62: if ($response == $answer) {
63: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='EXACT_ANS';
64: } else {
65: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='INCORRECT';
66: }
1.5 albertel 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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