Annotation of loncom/homework/radiobuttonresponse.pm, revision 1.8
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)=@_;
1.7 albertel 45:
1.1 albertel 46: my $result;
1.7 albertel 47: if ($target ne 'meta') {
48: my $name;
49: &setrandomnumber();
50: my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
51: my $count=0;
52: # we will add in 1 of the true statements
53: if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
54: my $answer = int(rand ($count));
55: &Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
56: if ($target eq 'web') {
57: $result=&displayfoils($max,$answer);
58: } elsif ( $target eq 'grade') {
1.8 ! albertel 59: if ( defined $ENV{'form.submitted'}) {
1.7 albertel 60: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
61: if ( $response =~ /[^\s]/) {
62: my $id = $Apache::inputtags::response['-1'];
63: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
64: &Apache::lonxml::debug("submitted a $response<br>\n");
65: if ($response == $answer) {
66: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='EXACT_ANS';
67: } else {
68: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='INCORRECT';
69: }
1.5 albertel 70: }
71: }
72: }
73: }
74: return $result;
1.6 albertel 75: }
76:
77: sub getfoilcounts {
78: my ($parstack,$safeeval)=@_;
79: my $rrargs ='';
80: if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
81: my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
82: my @names = @{ $Apache::response::foilgroup{'names'} };
83: my $truecnt=0;
84: my $falsecnt=0;
85: my $name;
86:
87: foreach $name (@names) {
88: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
89: $truecnt++;
90: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
91: $falsecnt++;
92: }
93: }
94: return ($truecnt,$falsecnt,$max);
1.5 albertel 95: }
96:
97: sub displayfoils {
98: my ($max,$answer)=@_;
1.3 albertel 99: my @names = @{ $Apache::response::foilgroup{'names'} };
100: my @truelist;
101: my @falselist;
1.5 albertel 102: my $result;
103: my $name;
104:
1.3 albertel 105: foreach $name (@names) {
1.5 albertel 106: #result.="<br><b>$name</b> is <i> $Apache::response::foilgroup{$name.'.value'} </i>";
1.3 albertel 107: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
108: push (@truelist,$name);
109: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
110: push (@falselist,$name);
111: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
112: } else {
1.5 albertel 113: &Apache::lonxml::error("Unknown state $Apache::response::foilgroup{$name.'.value'} for $name in <foilgroup>");
1.3 albertel 114: }
1.1 albertel 115: }
1.3 albertel 116: my $whichtrue = rand $#truelist;
1.4 albertel 117: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
118: my @whichfalse =();
119: while ((($#whichfalse+2) < $max) && ($#falselist > -1)) {
120: my $afalse=rand $#falselist;
121: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
122: $afalse=splice(@falselist,$afalse,1);
123: &Apache::lonxml::debug("Picked $afalse");
124: push (@whichfalse,$afalse);
125: }
1.5 albertel 126: splice(@whichfalse,$answer,0,$truelist[$whichtrue]);
127: my $temp=0;
128: &Apache::lonxml::debug("the true statement is $answer");
129: foreach $name (@whichfalse) {
130: $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\">".$Apache::response::foilgroup{$name.'.text'}."</input>\n";
131: $temp++;
1.4 albertel 132: }
1.5 albertel 133: return $result."<br />";
1.1 albertel 134: }
135:
136: sub start_foil {
1.4 albertel 137: $Apache::lonxml::redirection--;
1.5 albertel 138: return '';
1.1 albertel 139: }
140:
141: sub end_foil {
142: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
1.3 albertel 143: if ($target eq 'web' || $target eq 'grade') {
144: my $args ='';
145: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
146: my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
147: push @{ $Apache::response::foilgroup{'names'} }, $name;
148: my $value = &Apache::run::run("{$args;".'return $value}',$safeeval);
149: $Apache::response::foilgroup{"$name.value"} = $value;
150: $Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack;
151: }
152:
1.4 albertel 153: $Apache::lonxml::redirection++;
154: if ($Apache::lonxml::redirection == 1) {
155: $Apache::lonxml::outputstack='';
156: }
1.1 albertel 157: return '';
158: }
159:
160: 1;
161: __END__
162:
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