1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: # 2/21 Guy
4:
5: package Apache::radiobuttonresponse;
6: use strict;
7:
8: sub BEGIN {
9: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
10: }
11:
12: sub start_radiobuttonresponse {
13: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
14: #when in a radiobutton response use these
15: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil'));
16: my $id = &Apache::response::start_response($parstack,$safeeval);
17: return '';
18: }
19:
20: sub end_radiobuttonresponse {
21: &Apache::response::end_response;
22: return '';
23: }
24:
25: %Apache::response::foilgroup={};
26: sub start_foilgroup {
27: %Apache::response::foilgroup={};
28: $Apache::optionresponse::conceptgroup=0;
29: &setrandomnumber();
30: return '';
31: }
32:
33: sub setrandomnumber {
34: my $rndseed=&Apache::lonnet::rndseed();
35: $rndseed=unpack("%32i",$rndseed);
36: $rndseed=$rndseed
37: +&Apache::lonnet::numval($Apache::inputtags::part)
38: +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
39: srand($rndseed);
40: return '';
41: }
42:
43: sub end_foilgroup {
44: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
45:
46: my $result;
47: if ($target ne 'meta') {
48: my $name;
49: my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
50: my $count=0;
51: # we will add in 1 of the true statements
52: if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
53: my $answer = int(rand ($count));
54: &Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
55: if ($target eq 'web') {
56: $result=&displayfoils($max,$answer);
57: } elsif ( $target eq 'grade') {
58: if ( defined $ENV{'form.submitted'}) {
59: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
60: if ( $response =~ /[^\s]/) {
61: my $id = $Apache::inputtags::response['-1'];
62: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
63: &Apache::lonxml::debug("submitted a $response<br />\n");
64: if ($response == $answer) {
65: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='EXACT_ANS';
66: } else {
67: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='INCORRECT';
68: }
69: }
70: }
71: }
72: }
73: return $result;
74: }
75:
76: sub getfoilcounts {
77: my ($parstack,$safeeval)=@_;
78: my $rrargs ='';
79: if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
80: my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
81: my @names = @{ $Apache::response::foilgroup{'names'} };
82: my $truecnt=0;
83: my $falsecnt=0;
84: my $name;
85:
86: foreach $name (@names) {
87: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
88: $truecnt++;
89: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
90: $falsecnt++;
91: }
92: }
93: return ($truecnt,$falsecnt,$max);
94: }
95:
96: sub displayfoils {
97: my ($max,$answer)=@_;
98: my @names = @{ $Apache::response::foilgroup{'names'} };
99: my @truelist;
100: my @falselist;
101: my $result;
102: my $name;
103:
104: foreach $name (@names) {
105: #result.="<br /><b>$name</b> is <i> $Apache::response::foilgroup{$name.'.value'} </i>";
106: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
107: push (@truelist,$name);
108: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
109: push (@falselist,$name);
110: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
111: } else {
112: &Apache::lonxml::error("Unknown state $Apache::response::foilgroup{$name.'.value'} for $name in <foilgroup>");
113: }
114: }
115: my $whichtrue = rand $#truelist;
116: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
117: my @whichfalse =();
118: while ((($#whichfalse+2) < $max) && ($#falselist > -1)) {
119: my $afalse=rand $#falselist;
120: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
121: $afalse=splice(@falselist,$afalse,1);
122: &Apache::lonxml::debug("Picked $afalse");
123: push (@whichfalse,$afalse);
124: }
125: splice(@whichfalse,$answer,0,$truelist[$whichtrue]);
126: &Apache::lonxml::debug("the true statement is $answer");
127: if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
128: foreach $name (@whichfalse) {
129: $result.="<br />";
130: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
131: $result.='Correct';
132: } else {
133: $result.='Incorrect';
134: }
135: $result.=":".$Apache::response::foilgroup{$name.'.text'}."</input>\n";
136: }
137: } else {
138: my $temp=0;
139: foreach $name (@whichfalse) {
140: $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\">".$Apache::response::foilgroup{$name.'.text'}."</input>\n";
141: $temp++;
142: }
143: }
144: return $result."<br />";
145: }
146:
147: sub start_conceptgroup {
148: $Apache::optionresponse::conceptgroup=1;
149: %Apache::response::conceptgroup={};
150: return '';
151: }
152:
153: sub end_conceptgroup {
154: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
155: $Apache::optionresponse::conceptgroup=0;
156: if ($target eq 'web' || $target eq 'grade') {
157: my @names = @{ $Apache::response::conceptgroup{'names'} };
158: my $pick=int rand $#names+1;
159: my $name=$names[$pick];
160: push @{ $Apache::response::foilgroup{'names'} }, $name;
161: $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
162: $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
163: my $args;
164: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
165: my $concept = &Apache::run::run("{$args;".'return $concept}',$safeeval);
166: $Apache::response::foilgroup{"$name.concept"} = $concept;
167: &Apache::lonxml::debug("Selecting $name in $concept");
168: }
169: return '';
170: }
171:
172: sub start_foil {
173: &Apache::lonxml::startredirection;
174: return '';
175: }
176:
177: sub end_foil {
178: my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
179: my $foil=&Apache::lonxml::endredirection;
180: if ($target eq 'web' || $target eq 'grade') {
181: my $args ='';
182: if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
183: my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
184: push @{ $Apache::response::foilgroup{'names'} }, $name;
185: my $value = &Apache::run::run("{$args;".'return $value}',$safeeval);
186: $Apache::response::foilgroup{"$name.value"} = $value;
187: $Apache::response::foilgroup{"$name.text"} = $foil;
188: }
189: return '';
190: }
191:
192: 1;
193: __END__
194:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>