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- this allows one to turn randomiztion back on. :-)
- start of being able to specify where a particular foil should show up in the order

    1: # The LearningOnline Network with CAPA
    2: # mutliple choice style responses
    3: #
    4: # $Id: radiobuttonresponse.pm,v 1.48 2002/09/23 19:09:52 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: # 2/21 Guy
   29: 
   30: package Apache::radiobuttonresponse;
   31: use strict;
   32: use HTML::Entities();
   33: 
   34: BEGIN {
   35:   &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
   36: }
   37: 
   38: sub start_radiobuttonresponse {
   39:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   40:   my $result;
   41:   #when in a radiobutton response use these
   42:   &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
   43:   push (@Apache::lonxml::namespace,'radiobuttonresponse');
   44:   my $id = &Apache::response::start_response($parstack,$safeeval);
   45:   if ($target eq 'meta') {
   46:     $result=&Apache::response::meta_package_write('radiobuttonresponse');
   47:   } elsif ($target eq 'edit' ) {
   48:     $result.=&Apache::edit::start_table($token).
   49: 	'<tr><td>'.&Apache::lonxml::description($token)."</td><td>Delete:".
   50: 	&Apache::edit::deletelist($target,$token)
   51: 	."</td><td>&nbsp".&Apache::edit::end_row()
   52:         .&Apache::edit::start_spanning_row();
   53: 
   54:     $result.=
   55: 	&Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
   56: 	&Apache::edit::select_arg('Randomize Foil Order','randomize',
   57: 				  ['yes','no'],$token).
   58:         &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
   59:   } elsif ($target eq 'modified') {
   60:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
   61: 						 $safeeval,'max','randomize');
   62:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   63:   } elsif ($target eq 'tex') {
   64:       $result .= '\begin{enumerate}';
   65:   }
   66:   return $result;
   67: }
   68: 
   69: sub end_radiobuttonresponse {
   70:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   71:   my $result;
   72:   if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
   73:   if ($target eq 'tex') { $result .= '\end{enumerate}'; }
   74:   &Apache::response::end_response;
   75:   pop @Apache::lonxml::namespace;
   76:   &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
   77:   return $result;
   78: }
   79: 
   80: %Apache::response::foilgroup=();
   81: sub start_foilgroup {
   82:   %Apache::response::foilgroup=();
   83:   $Apache::radiobuttonresponse::conceptgroup=0;
   84:   &Apache::response::setrandomnumber();
   85:   return '';
   86: }
   87: 
   88: sub storesurvey {
   89:   if ( !defined($ENV{'form.submitted'})) { return ''; }
   90:   my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
   91:   &Apache::lonxml::debug("Here I am!:$response:");
   92:   if ( $response !~ /[0-9]+/) { return ''; }
   93:   my $id = $Apache::inputtags::response['-1'];
   94:   my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
   95:   my %responsehash;
   96:   $responsehash{$whichfoils[$response]}=$response;
   97:   $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=&Apache::lonnet::hash2str(%responsehash);
   98:   $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='SUBMITTED';
   99:   &Apache::lonxml::debug("submitted a $response<br />\n");
  100:   return '';
  101: }
  102: 
  103: sub grade_response {
  104:   my ($max,$answer,$randomize)=@_;
  105:   if (!defined($ENV{'form.submitted'})) { return; }
  106:   my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
  107:   if ( $response !~ /[0-9]+/) { return; }
  108:   my $part=$Apache::inputtags::part;
  109:   my $id = $Apache::inputtags::response['-1'];
  110:   my @whichfoils=&whichfoils($max,$answer,$randomize);
  111:   my %responsehash;
  112:   $responsehash{$whichfoils[$response]}=$response;
  113:   my $responsestr=&Apache::lonnet::hash2str(%responsehash);
  114:   my %previous=&Apache::response::check_for_previous($responsestr,
  115: 						     $part,$id);
  116:   $Apache::lonhomework::results{"resource.$part.$id.submission"}=
  117:     $responsestr;
  118:   &Apache::lonxml::debug("submitted a $response<br />\n");
  119:   my $ad;
  120:   if ($response == $answer) {
  121:     $ad='EXACT_ANS';
  122:   } else {
  123:     $ad='INCORRECT';
  124:   }
  125:   $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
  126:   &Apache::response::handle_previous(\%previous,$ad);
  127: }
  128: 
  129: sub end_foilgroup {
  130:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  131: 
  132:   my $result;
  133:   if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex') {
  134:     my $style = $Apache::lonhomework::type;
  135:     if ( $style eq 'survey' ) {
  136:       if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
  137: 	$result=&displayallfoils();
  138:       } elsif ( $target eq 'grade' ) {
  139: 	$result=&storesurvey();
  140:       }
  141:     } else {
  142:       my $name;
  143:       my ($truecnt,$falsecnt,$max) = &getfoilcounts($parstack,$safeeval);
  144:       my $count=0;
  145:       # we will add in 1 of the true statements
  146:       if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
  147:       my $answer = int(rand ($count));
  148:       &Apache::lonxml::debug("Answer is $answer, $count from $max, $falsecnt");
  149:       my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
  150: 						 $safeeval,'-2');
  151:       if ($target eq 'web' || $target eq 'tex') {
  152: 	$result=&displayfoils($target,$max,$answer,$randomize);
  153:       } elsif ($target eq 'answer' ) {
  154: 	$result=&displayanswers($max,$answer,$randomize);
  155:       } elsif ( $target eq 'grade') {
  156: 	&grade_response($max,$answer,$randomize);
  157:       }
  158:     }
  159:   }
  160:   return $result;
  161: }
  162: 
  163: sub getfoilcounts {
  164:   my ($parstack,$safeeval)=@_;
  165:   my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
  166:   my @names;
  167:   my $truecnt=0;
  168:   my $falsecnt=0;
  169:   my $name;
  170:   if ( $Apache::response::foilgroup{'names'} ) {
  171:     @names= @{ $Apache::response::foilgroup{'names'} };
  172:   }
  173:   foreach $name (@names) {
  174:     if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  175:       $truecnt++;
  176:     } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
  177:       $falsecnt++;
  178:     }
  179:   }
  180:   return ($truecnt,$falsecnt,$max);
  181: }
  182: 
  183: sub displayallfoils {
  184:   my $result;
  185:   &Apache::lonxml::debug("survey style display");
  186:   my @names = @{ $Apache::response::foilgroup{'names'} };
  187:   my $temp=0;
  188:   my $id=$Apache::inputtags::response['-1'];
  189:   my $part=$Apache::inputtags::part;
  190:   my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
  191:   my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
  192:   if (($Apache::lonhomework::history{"resource.$part.solved"} =~ /^correct/)  || ($Apache::inputtags::status[-1] eq  'SHOW_ANSWER')) {
  193:     foreach my $name (@names) {
  194:       if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
  195: 	$result.="<br />".$Apache::response::foilgroup{$name.'.value'};
  196: 	if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  197: 	  $result.='<b>';
  198: 	}
  199: 	$result .= $Apache::response::foilgroup{$name.'.text'};
  200: 	if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  201: 	  $result.='</b>';
  202: 	}
  203:       }
  204:     }
  205:   } else {
  206:     foreach my $name (@names) {
  207:       if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
  208: 	$result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\" ";
  209: 	if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
  210: 	$result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
  211: 	$temp++;
  212:       }
  213:     }
  214:   }
  215:   return $result;
  216: }
  217: 
  218: sub whichfoils {
  219:   my ($max,$answer,$randomize)=@_;
  220: 
  221:   my @truelist;
  222:   my @falselist;
  223:   my @whichfalse =();
  224: 
  225:   my @names;
  226:   if ( $Apache::response::foilgroup{'names'} ) {
  227:     @names= @{ $Apache::response::foilgroup{'names'} };
  228:   }
  229:   if (&Apache::response::showallfoils()) {
  230:     @whichfalse=@names;
  231:   } elsif ($randomize eq 'no') {
  232:       &Apache::lonxml::debug("No randomization");
  233:       my $havetrue=0;
  234:       foreach my $name (@names) {
  235: 	  if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  236: 	      if (!$havetrue ) { push(@whichfalse,$name); $havetrue++; }
  237: 	  } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
  238: 	      push (@whichfalse,$name);
  239: 	  } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
  240: 	  } else {
  241: 	      &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
  242: 	  }
  243:       }
  244:   } else {
  245:     foreach my $name (@names) {
  246:       #result.="<br /><b>$name</b> is <i> $Apache::response::foilgroup{$name.'.value'} </i>";
  247:       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  248: 	push (@truelist,$name);
  249:       } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
  250: 	push (@falselist,$name);
  251:       } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
  252:       } else {
  253: 	&Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
  254:       }
  255:     }
  256:     my $whichtrue = int(rand($#truelist+1));
  257:     &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
  258:     while ((($#whichfalse+1) < $max-1) && ($#falselist > -1)) {
  259:       &Apache::lonxml::debug("Have $#whichfalse max is $max");
  260:       my $afalse=int(rand($#falselist+1));
  261:       &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
  262:       $afalse=splice(@falselist,$afalse,1);
  263:       &Apache::lonxml::debug("Picked $afalse");
  264:       push (@whichfalse,$afalse);
  265:     }
  266:     splice(@whichfalse,$answer,0,$truelist[$whichtrue]);
  267:     &Apache::lonxml::debug("the true statement is $answer");
  268:   }
  269:   return @whichfalse;
  270: }
  271: 
  272: sub displayfoils {
  273:   my ($target,$max,$answer,$randomize)=@_;
  274:   my $result;
  275: 
  276:   my @whichfoils=&whichfoils($max,$answer,$randomize);
  277:   if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ || ($Apache::inputtags::status[-1] eq  'SHOW_ANSWER')) {
  278:     foreach my $name (@whichfoils) {
  279:       if ($target ne 'tex') {
  280: 	  $result.="<br />";
  281:       } else {
  282: 	  $result.='\vskip 0 mm \item ';
  283:       }
  284:       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') { 
  285: 	  if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: ';}
  286:       } else {
  287: 	$result.='Incorrect:';
  288:       }
  289:       if ($target ne 'tex') {
  290: 	  $result.=$Apache::response::foilgroup{$name.'.text'}."</input>\n";
  291:       } else {
  292: 	  $result.=$Apache::response::foilgroup{$name.'.text'};
  293:       }
  294:       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  295: 	  if ($target ne 'tex') { $result.='</b>';}
  296:       }
  297:     }
  298:   } else {
  299:     my $temp=0;
  300:     my $id=$Apache::inputtags::response['-1'];
  301:     my $part=$Apache::inputtags::part;
  302:     my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
  303:     my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
  304:     foreach my $name (@whichfoils) {
  305:       if ($target ne 'tex') {
  306: 	  $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\" ";
  307: 	  if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
  308: 	  $result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
  309:       } else {
  310: 	  $result .= '\item '.$Apache::response::foilgroup{$name.'.text'};
  311:       }
  312:       $temp++;
  313:     }
  314:   }
  315:   if ($target ne 'tex') { $result.="<br />"; } else { $result.='\vskip 0 mm '; }
  316:   return $result;
  317: }
  318: 
  319: sub displayanswers {
  320:   my ($max,$answer,$randomize)=@_;
  321:   my @whichopt = &whichfoils($max,$answer,$randomize);
  322:   my $result=&Apache::response::answer_header('radiobuttonresponse');
  323:   foreach my $name (@whichopt) {
  324:     $result.=&Apache::response::answer_part('radiobuttonresponse',
  325: 		     $Apache::response::foilgroup{$name.'.value'})
  326:   }
  327:   $result.=&Apache::response::answer_footer('radiobuttonresponse');
  328:   return $result;
  329: }
  330: 
  331: sub start_conceptgroup {
  332:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  333:   $Apache::radiobuttonresponse::conceptgroup=1;
  334:   %Apache::response::conceptgroup=();
  335:   my $result;
  336:   if ($target eq 'edit') {
  337:     $result.=&Apache::edit::tag_start($target,$token);
  338:     $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
  339: 	&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  340:   } elsif ($target eq 'modified') {
  341:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  342: 						 $safeeval,'concept');
  343:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  344:   }
  345:   return $result;
  346: }
  347: 
  348: sub end_conceptgroup {
  349:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  350:   $Apache::radiobuttonresponse::conceptgroup=0;
  351:   my $result;
  352:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'  || $target eq 'tex') {
  353:     if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
  354:       my @names = @{ $Apache::response::conceptgroup{'names'} };
  355:       my $pick=int(rand($#names+1));
  356:       my $name=$names[$pick];
  357:       push @{ $Apache::response::foilgroup{'names'} }, $name;
  358:       $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};
  359:       $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
  360:       my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
  361:       $Apache::response::foilgroup{"$name.concept"} = $concept;
  362:       &Apache::lonxml::debug("Selecting $name in $concept");
  363:     }
  364:   } elsif ($target eq 'edit') {
  365:     $result=&Apache::edit::end_table();
  366:   }
  367:   return $result;
  368: }
  369: 
  370: sub insert_conceptgroup {
  371:   my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
  372:   return $result;
  373: }
  374: 
  375: sub start_foil {
  376:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  377:   my $result='';
  378:   if ($target eq 'web' || $target eq 'tex') {
  379:     &Apache::lonxml::startredirection;
  380:   } elsif ($target eq 'edit') {
  381:     $result=&Apache::edit::tag_start($target,$token);
  382:     $result.=&Apache::edit::text_arg('Name:','name',$token);
  383:     $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
  384: 				       ['unused','true','false'],$token);
  385:     $result.=&Apache::edit::select_or_text_arg('Location:','location',
  386: 				       ['random','bottom','top'],$token);
  387:     $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  388:   } elsif ($target eq 'modified') {
  389:      my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
  390: 						  'value','name','location');
  391:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  392:   } 
  393:   return $result;
  394: }
  395: 
  396: sub end_foil {
  397:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  398:   my $text='';
  399:   if ($target eq 'web' || $target eq 'tex') { $text=&Apache::lonxml::endredirection; }
  400:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'  || $target eq 'tex') {
  401:     my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
  402:     if ($value ne 'unused') {
  403:       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  404:       my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
  405:       if (!$name) { $name=$Apache::lonxml::curdepth; }
  406:       if ( $Apache::radiobuttonresponse::conceptgroup
  407: 	   && !&Apache::response::showallfoils() ) {
  408: 	push @{ $Apache::response::conceptgroup{'names'} }, $name;
  409: 	$Apache::response::conceptgroup{"$name.value"} = $value;
  410: 	$Apache::response::conceptgroup{"$name.text"} = $text;	
  411: 	$Apache::response::conceptgroup{"$name.location"} = $location;	
  412:       } else {
  413: 	push @{ $Apache::response::foilgroup{'names'} }, $name;
  414: 	$Apache::response::foilgroup{"$name.value"} = $value;
  415: 	$Apache::response::foilgroup{"$name.text"} = $text;
  416: 	$Apache::response::foilgroup{"$name.location"} = $location;
  417:       }
  418:     }
  419:   }
  420:   return '';
  421: }
  422: 
  423: sub insert_foil {
  424:   return '
  425: <foil name="" value="unused">
  426: <startouttext />
  427: <endouttext />
  428: </foil>';
  429: }
  430: 1;
  431: __END__
  432: