File:  [LON-CAPA] / loncom / homework / optionresponse.pm
Revision 1.47: download - view: text, annotated - select for diffs
Thu Sep 26 20:45:00 2002 UTC (21 years, 7 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- removed use of Perl's internal rand operator, now all randomiztaion depends upon the external Math::Random library

    1: # LearningOnline Network with CAPA
    2: # option list style responses
    3: #
    4: # $Id: optionresponse.pm,v 1.47 2002/09/26 20:45:00 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: # 01/18 Alex
   30: package Apache::optionresponse;
   31: use strict;
   32: use Apache::response;
   33: 
   34: BEGIN {
   35:   &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
   36: }
   37: 
   38: sub start_optionresponse {
   39:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   40:   my $result='';
   41:   #when in a option response use these
   42:   &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup'));
   43:   push (@Apache::lonxml::namespace,'optionresponse');
   44:   my $id = &Apache::response::start_response($parstack,$safeeval);
   45:   if ($target eq 'edit') {
   46:     $result.=&Apache::edit::start_table($token).
   47: 	"<tr><td>Multiple Option Response Question</td><td>Delete:".
   48: 	&Apache::edit::deletelist($target,$token)
   49: 	."</td><td>&nbsp;".
   50:         &Apache::edit::end_row().
   51:         &Apache::edit::start_spanning_row().
   52:         "\n";
   53:     $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
   54:         &Apache::edit::end_row().
   55: 	&Apache::edit::start_spanning_row();
   56:   } elsif ($target eq 'modified') {
   57:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
   58: 						 $safeeval,'max');
   59:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   60:   } elsif ($target eq 'meta') {
   61:     $result=&Apache::response::meta_package_write('optionresponse');
   62:   } elsif ($target eq 'analyze') {
   63:     my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
   64:     push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
   65:   }
   66:   return $result;
   67: }
   68: 
   69: sub end_optionresponse {
   70:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   71:   &Apache::response::end_response;
   72:   pop @Apache::lonxml::namespace;
   73:   &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup'));
   74:   my $result;
   75:   if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
   76:   return $result;
   77: }
   78: 
   79: %Apache::response::foilgroup=();
   80: sub start_foilgroup {
   81:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   82: 
   83:   my $result='';
   84:   %Apache::response::foilgroup=();
   85:   $Apache::optionresponse::conceptgroup=0;
   86:   &Apache::response::setrandomnumber();
   87:   if ($target eq 'edit') {
   88:     my $optionlist="<option></option>\n";
   89:     my $option;
   90:     my @opt;
   91:     eval '@opt ='. &Apache::lonxml::get_param('options',$parstack,$safeeval);
   92:     my $count=1;
   93:     foreach $option (@opt) {
   94:       $optionlist.="<option value=\"$count\">$option</option>\n";
   95:       $count++;
   96:     }
   97:     my $insertlist=&Apache::edit::insertlist($target,$token);
   98:     $result.=&Apache::edit::start_table($token);
   99:     $result.= (<<ENDTABLE);
  100:       <tr><td>Select Options</td>
  101:         <td>
  102: 	  Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
  103:         </td>
  104:         <td>Delete an Option:
  105: 	  <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
  106: ENDTABLE
  107:     $result.= &Apache::edit::end_row();
  108:     $result.= &Apache::edit::start_spanning_row();
  109:     $result.= $insertlist.'<br />';
  110:   }
  111:   if ($target eq 'modified') {
  112:     my @options;
  113:     my $optchanged=0;
  114:     eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
  115:     if ($ENV{"form.$Apache::lonxml::curdepth.deleteopt"}) {
  116:       my $delopt=$ENV{"form.$Apache::lonxml::curdepth.deleteopt"};
  117:       &Apache::lonxml::debug("Deleting :$delopt:");
  118:       splice(@options,$delopt-1,1);
  119:       $optchanged=1;
  120:     }
  121:     if ($ENV{"form.$Apache::lonxml::curdepth.options"}) {
  122:       my $newopt = $ENV{"form.$Apache::lonxml::curdepth.options"};
  123:       if ($options[0]) {
  124: 	push(@options,$newopt);
  125:       } else {
  126: 	$options[0]=$newopt;
  127:       }
  128:       $optchanged=1;
  129:     }
  130:     if ($optchanged) {
  131:       $result = "<foilgroup options=\"(";
  132:       foreach my $option (@options) {
  133: 	$option=~s/\'/\\\'/g;
  134: 	&Apache::lonxml::debug("adding option :$option:");
  135: 	$result .="'".$option."',";
  136:       }
  137:       chop $result;
  138:       $result.=')">';
  139:     } # else nothing changed so just use the default mechanism
  140:   }
  141:   if ($target eq 'tex') {
  142:       $result .= ' \begin{enumerate} ';
  143:   }
  144:   return $result;
  145: }
  146: 
  147: sub end_foilgroup {
  148:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  149:   
  150:   my $result;
  151:   if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') {
  152:     my $name;
  153:     my ($count,$max) = &getfoilcounts($parstack,$safeeval);
  154:     if ($count>$max) { $count=$max } 
  155:     &Apache::lonxml::debug("Count is $count from $max");
  156:     my @opt;
  157:     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
  158:     &Apache::lonxml::debug("Options are $#opt");
  159:     if ($target eq 'web' || $target eq 'tex') {
  160:       $result.=&displayfoils($target,$count,@opt);
  161:     } elsif ( $target eq 'answer') {
  162:       $result.=&displayanswers($count,@opt);
  163:     } elsif ( $target eq 'analyze') {
  164:       my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
  165:       foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
  166: 	if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
  167: 	push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
  168: 	$Apache::lonhomework::analyze{"$part_id.foil.value.$name"} =
  169: 	  $Apache::response::foilgroup{"$name.value"};
  170: 	$Apache::lonhomework::analyze{"$part_id.foil.text.$name"} =
  171: 	  $Apache::response::foilgroup{"$name.text"};
  172:       }
  173:       push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
  174:       push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} },&whichfoils($count));
  175:     } elsif ( $target eq 'grade') {
  176:       if ( defined $ENV{'form.submitted'}) {
  177: 	my @whichopt = &whichfoils($count);
  178: 	my $temp=1;my $name;
  179: 	my %responsehash;
  180: 	my $right=0;
  181: 	my $wrong=0;
  182: 	my $ignored=0;
  183: 	foreach $name (@whichopt) {
  184: 	  my $response = $ENV{'form.HWVAL_'.$Apache::inputtags::response['-1'].":$temp"};
  185: 	  $responsehash{$name}=$response;
  186: 	  if ( $response =~ /[^\s]/) {
  187: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
  188: 	    &Apache::lonxml::debug("submitted a $response for $value<br />\n");
  189: 	    if ($value eq $response) {$right++;} else {$wrong++;}
  190: 	  } else {
  191: 	    $ignored++;
  192: 	  }
  193: 	  $temp++;
  194: 	}
  195: 	my $part=$Apache::inputtags::part;
  196: 	my $id = $Apache::inputtags::response['-1'];
  197: 	my $responsestr=&Apache::lonnet::hash2str(%responsehash);
  198: 	my %previous=&Apache::response::check_for_previous($responsestr,
  199: 							   $part,$id);
  200: 	&Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
  201: 	my $ad;
  202: 	if ($wrong==0 && $ignored==0) {
  203: 	  $ad='EXACT_ANS';
  204: 	} elsif ($wrong==0 && $right==0) {
  205: 	  #nothing submitted
  206: 	} else {
  207: 	  if ($ignored==0) {
  208: 	    $ad='INCORRECT';
  209: 	  } else {
  210: 	    $ad='MISSING_ANSWER';
  211: 	  }
  212: 	}
  213: 	$Apache::lonhomework::results{"resource.$part.$id.submission"}=
  214: 	  $responsestr;
  215: 	$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
  216: 	  $ad;
  217: 	&Apache::response::handle_previous(\%previous,$ad);
  218:       }
  219:     }
  220:   } elsif ($target eq 'edit') {
  221:     $result.=&Apache::edit::end_table();
  222:   }  
  223:   if ($target eq 'tex') {$result .= '\end{enumerate}';}
  224:   return $result;
  225: }
  226: 
  227: sub getfoilcounts {
  228:   my ($parstack,$safeeval)=@_;
  229:   my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
  230:   # +1 since instructors will count from 1
  231:   my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
  232:   if (&Apache::response::showallfoils()) { $max=$count; }
  233:   return ($count,$max);
  234: }
  235: 
  236: sub whichfoils {
  237:   my ($max)=@_;
  238:   my @names = @{ $Apache::response::foilgroup{'names'} };
  239:   my @whichopt =();
  240:   while ((($#whichopt+1) < $max) && ($#names > -1)) {
  241:     &Apache::lonxml::debug("Have $#whichopt max is $max");
  242:     my $aopt;
  243:     if (&Apache::response::showallfoils()) {
  244:       $aopt=0;
  245:     } else {
  246:       $aopt=int(&Math::Random::random_uniform() * ($#names+1));
  247:     }
  248:     &Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
  249:     $aopt=splice(@names,$aopt,1);
  250:     &Apache::lonxml::debug("Picked $aopt");
  251:     push (@whichopt,$aopt);
  252:   }
  253:   return @whichopt;
  254: }
  255: 
  256: sub displayanswers {
  257:   my ($max,@opt)=@_;
  258:   my @names = @{ $Apache::response::foilgroup{'names'} };
  259:   my @whichopt = &whichfoils($max);
  260:   my $result=&Apache::response::answer_header('optionresponse');
  261:   foreach my $name (@whichopt) {
  262:     $result.=&Apache::response::answer_part('optionresponse',
  263: 		     $Apache::response::foilgroup{$name.'.value'})
  264:   }
  265:   $result.=&Apache::response::answer_footer('optionresponse');
  266:   return $result;
  267: }
  268: 
  269: sub displayfoils {
  270:   my ($target,$max,@opt)=@_;
  271:   my @names = @{ $Apache::response::foilgroup{'names'} };
  272:   my @truelist;
  273:   my @falselist;
  274:   my $result;
  275:   my $name;
  276:   my $displayoptionintex=0;
  277:   my @whichopt = &whichfoils($max);
  278:   my $part=$Apache::inputtags::part;
  279:   my $id=$Apache::inputtags::response[-1];
  280:   if (($Apache::lonhomework::history{"resource.$part.solved"} =~ /^correct/)  || ($Apache::inputtags::status[-1] eq  'SHOW_ANSWER')) {
  281:     foreach $name (@whichopt) {
  282:       if ($target eq 'web') {
  283: 	  $result.="<br />";
  284:       } elsif ($target eq 'tex') {
  285: 	  $result.='\vskip 0 mm ';
  286:       }
  287:       if ($target ne 'tex') {
  288: 	  $result .=$Apache::response::foilgroup{$name.'.value'}.
  289: 	      ":".$Apache::response::foilgroup{$name.'.text'}."\n";
  290:       } else {
  291:  	  $result .='\item '.$Apache::response::foilgroup{$name.'.value'}.
  292: 	      ":".$Apache::response::foilgroup{$name.'.text'}."\n";
  293:       }
  294:     }
  295:   } else {
  296:     my $temp=1;
  297:     my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
  298:     foreach $name (@whichopt) {
  299:       my $lastopt=$lastresponse{$name};
  300:       my $optionlist="<option></option>\n";
  301:       my $option;
  302:       foreach $option (@opt) {
  303: 	if ($option eq $lastopt) {
  304: 	  $optionlist.="<option selected=\"on\">$option</option>\n";
  305: 	} else {
  306: 	  $optionlist.="<option>$option</option>\n";
  307: 	}
  308:       }
  309:       if ($target ne 'tex') {
  310: 	  $result.="<br /><select name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\">"
  311: 	      .$optionlist
  312: 		  ."</select>\n".$Apache::response::foilgroup{$name.'.text'}."\n";
  313: 	  $temp++;
  314:       } else {
  315: 	  if ($displayoptionintex == 0) {
  316:               my $texoptionlist = $optionlist;
  317: 	      $texoptionlist =~ s/<option><\/option>/\\item \[\] The possible answers are:/;
  318: 	      $texoptionlist =~ s/<option>/{\\bf /g;
  319: 	      $texoptionlist =~ s/<option selected="on">/{\\bf /g;
  320: 	      $texoptionlist =~ s/<\/option>/},/g;
  321: 	      $texoptionlist =~ s/,$/\./g;
  322: 	      $texoptionlist =~ s/>/\$>\$/g;
  323: 	      $texoptionlist =~ s/</\$<\$/g;
  324: 	      $texoptionlist =~ s/=/\$=\$/g;
  325: 	      if ($Apache::response::foilgroup{$name.'.text'}=~m/\\item /) {
  326: 		  $result.= $texoptionlist.$Apache::response::foilgroup{$name.'.text'};
  327: 	      } else {
  328: 		  $result.= $texoptionlist.'\item '.$Apache::response::foilgroup{$name.'.text'};
  329: 	      }
  330: 	      $displayoptionintex=1;
  331: 	  } else {
  332: 	      if ($Apache::response::foilgroup{$name.'.text'}=~m/\\item /) {
  333: 		  $result.= $Apache::response::foilgroup{$name.'.text'};
  334: 	      } else {
  335: 		  $result.= '\item '.$Apache::response::foilgroup{$name.'.text'};
  336: 	      }
  337: 	  }
  338:       } 
  339:     }
  340:   } 
  341:   if ($target ne 'tex') {
  342:       return $result."<br />";
  343:   }
  344:   else {
  345:       return $result;
  346:   }
  347: }
  348: 
  349: 
  350: sub start_conceptgroup {
  351:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  352:   $Apache::optionresponse::conceptgroup=1;
  353:   %Apache::response::conceptgroup=();
  354:   my $result;
  355:   if ($target eq 'edit') {
  356:     $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
  357:     $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
  358:         &Apache::edit::end_row().&Apache::edit::start_spanning_row();
  359:   }
  360:   if ($target eq 'modified') {
  361:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
  362:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  363:   }
  364:   return $result;
  365: }
  366: 
  367: sub end_conceptgroup {
  368:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  369:   $Apache::optionresponse::conceptgroup=0;
  370:   my $result='';
  371:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
  372:       || $target eq 'tex' || $target eq 'analyze') {
  373:     #if not there aren't any foils to display and thus no question
  374:     if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
  375:       my @names = @{ $Apache::response::conceptgroup{'names'} };
  376:       my $pick=int(&Math::Random::random_uniform() * ($#names+1));
  377:       my $name=$names[$pick];
  378:       push @{ $Apache::response::foilgroup{'names'} }, $name;
  379:       $Apache::response::foilgroup{"$name.value"} =
  380: 	$Apache::response::conceptgroup{"$name.value"};
  381:       $Apache::response::foilgroup{"$name.text"} =
  382: 	$Apache::response::conceptgroup{"$name.text"};
  383:       my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
  384:       $Apache::response::foilgroup{"$name.concept"} = $concept;
  385:       &Apache::lonxml::debug("Selecting $name in $concept");
  386:       if ($target eq 'analyze') {
  387: 	my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
  388:         push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
  389: 	      $concept);
  390: 	$Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
  391: 	  $Apache::response::conceptgroup{'names'};
  392: 	foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
  393: 	  push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
  394: 		$name);
  395: 	  $Apache::lonhomework::analyze{"$part_id.foil.value.$name"} =
  396: 	    $Apache::response::conceptgroup{"$name.value"};
  397: 	  $Apache::lonhomework::analyze{"$part_id.foil.text.$name"} =
  398: 	    $Apache::response::conceptgroup{"$name.text"};
  399: 	}
  400:       }
  401:     }
  402:   } elsif ($target eq 'edit') {
  403:     $result=&Apache::edit::end_table();
  404:   }
  405:   return $result;
  406: }
  407: 
  408: sub insert_conceptgroup {
  409:   my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
  410:   return $result;
  411: }
  412: 
  413: sub start_foil {
  414:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  415:   my $result='';
  416:   if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
  417:     &Apache::lonxml::startredirection;
  418:   } elsif ($target eq 'edit') {
  419:     $result=&Apache::edit::tag_start($target,$token,"Foil");
  420:     my $level='-2';
  421:     if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
  422:     my @opt;
  423:     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
  424:     $result.=&Apache::edit::text_arg('Name:','name',$token);
  425:     $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',(@opt)],$token,'15');
  426:     $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  427:   } elsif ($target eq 'modified') {
  428:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'value','name');
  429:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  430:   } 
  431:   return $result;
  432: }
  433: 
  434: sub end_foil {
  435:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  436:   my $text ='';
  437:   my $result = '';
  438:   if ($target eq 'web' || $target eq 'tex') { 
  439:       $text=&Apache::lonxml::endredirection; 
  440:   }
  441:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' 
  442:       || $target eq 'tex' || $target eq 'analyze') {
  443:     my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
  444:     if ($value ne 'unused') {
  445:       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  446:       &Apache::lonxml::debug("Got a name of :$name:");
  447:       if (!$name) { $name=$Apache::lonxml::curdepth; }
  448:       &Apache::lonxml::debug("Using a name of :$name:");
  449:       if ( $Apache::optionresponse::conceptgroup
  450: 	   && !&Apache::response::showallfoils() ) {
  451: 	push @{ $Apache::response::conceptgroup{'names'} }, $name;
  452: 	$Apache::response::conceptgroup{"$name.value"} = $value;
  453: 	$Apache::response::conceptgroup{"$name.text"} = $text;
  454:       } else {
  455: 	push @{ $Apache::response::foilgroup{'names'} }, $name;
  456:         if ($target eq 'tex') {
  457: 	    $Apache::response::foilgroup{"$name.text"} = '\item '.$text;
  458: 	} else {
  459: 	    $Apache::response::foilgroup{"$name.value"} = $value;
  460: 	    $Apache::response::foilgroup{"$name.text"} = $text;
  461: 	}
  462:       }
  463:     }
  464:   }
  465:   if ($target eq 'edit') {
  466:     $result.= &Apache::edit::tag_end($target,$token,'');
  467:   }
  468:   return $result;
  469: }
  470: 
  471: sub insert_foil {
  472:   return '
  473: <foil name="" value="unused">
  474: <startouttext />
  475: <endouttext />
  476: </foil>';
  477: }
  478: 1;
  479: __END__
  480:  

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