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- Backport 1.30, 1.31.

    1: # The LearningOnline Network
    2: # Simple Problem Parameter Setting "Editor"
    3: #
    4: # $Id: lonsimpleproblemedit.pm,v 1.20.2.3 2010/01/27 23:32:05 raeburn 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: 
   29: package Apache::lonsimpleproblemedit;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common :http);
   33: use Apache::loncommon;
   34: use Apache::lonnet;
   35: use Apache::lonlocal;
   36: use Apache::lonnavmaps;
   37: use lib '/home/httpd/lib/perl/';
   38: use LONCAPA;
   39:  
   40: 
   41: my %qparms;
   42: my $prefix;
   43: my $qtype;
   44: 
   45: sub evaloptionhash {
   46:     my $options=shift;
   47:     $options=~s/^\(\'//;
   48:     $options=~s/\'\)$//;
   49:     my %returnhash=();
   50:     foreach (split(/\'\,\'/,$options)) {
   51: 	$returnhash{$_}=$_;
   52:     }
   53:     return %returnhash;
   54: }
   55: 
   56: sub rawrendering {
   57:     my ($symb)=@_;
   58:     my %data=('show_errors'=>'on',
   59: 	      'simple_edit_button' => 'off',
   60: 	      'devalidatecourseresdata'=>'on');
   61:     return &Apache::loncommon::get_student_view($symb,time,time,
   62: 						$env{'request.course.id'},
   63: 						'web',\%data);
   64: }
   65: 
   66: sub questiontext {
   67:     my $text=$qparms{$prefix.'questiontext'};
   68:     my $qt=&mt('Question Text');
   69:     my $spell_link=
   70: 	&Apache::lonhtmlcommon::spelllink('simpleedit','questiontext');
   71:     return (<<ENDQUESTION);
   72: <table bgcolor="#dddd22" cellspacing="4" cellpadding="2" style="width:100%">
   73: <tr><td><b>$qt</b><br />
   74: <textarea style="width:100%" name="questiontext" cols="80" rows="8">$text</textarea>
   75: <br />$spell_link
   76: </td></tr>
   77: </table>
   78: <br />
   79: ENDQUESTION
   80: }
   81: 
   82: sub hint {
   83:     my $text=$qparms{$prefix.'hinttext'};
   84:     my $ht=&mt('Hint Text');
   85:     my $spell_link=
   86: 	&Apache::lonhtmlcommon::spelllink('simpleedit','hinttext');
   87:     return (<<ENDHINT);
   88: <table bgcolor="#accacc" cellspacing="4" cellpadding="2">
   89: <tr><td><b>$ht</b><br />
   90: <textarea style="width:100%" name="hinttext" cols="80" rows="4">$text</textarea>
   91: <br />$spell_link
   92: </td></tr>
   93: </table>
   94: <br />
   95: ENDHINT
   96: }
   97: 
   98: sub script {
   99:     my $text=$qparms{$prefix.'numericalscript'};
  100:     my $ht=&mt('Scripting (optional)');
  101:     return (<<ENDSCRIPT);
  102: <table bgcolor="#ccccaa" cellspacing="4" cellpadding="2">
  103: <tr><td><b>$ht</b><br />
  104: <textarea style="width:100%" name="numericalscript" cols="80" rows="4">$text</textarea>
  105: </td></tr>
  106: </table>
  107: <br />
  108: ENDSCRIPT
  109: }
  110: 
  111: sub foil {
  112:     my $number=shift;
  113:     my (%values,%defaultvalues,%customvalues);
  114:     %defaultvalues = &Apache::lonlocal::texthash(
  115:                          'unused' => 'Not shown, not used'
  116:                      );
  117:     if ($qtype eq 'radio') {
  118:         %customvalues = &Apache::lonlocal::texthash(
  119:                                        'true' => 'True',
  120:                                        'false' => 'False'
  121:         );
  122:     } elsif ($qtype eq 'option') {
  123:         %customvalues=&evaloptionhash($qparms{$prefix.'options'});
  124:     }
  125:     %values = (%defaultvalues,%customvalues);
  126:     my $value=$qparms{$prefix.'value'.$number};
  127:     unless (defined($value)) { $value='unused'; }
  128:     unless ($values{$value}) { $value='unused'; }
  129:     my $position=$qparms{$prefix.'position'.$number};
  130:     my %positions=('random' => 'Random position',
  131: 		   'top'    => 'Show always at top position',
  132: 		   'bottom' => 'Show always at bottom position');
  133:     unless (defined($position)) { $position='random'; }
  134:     unless ($positions{$position}) {
  135: 	$position='random';
  136:     }
  137:     my $selectvalue=&Apache::loncommon::select_form(
  138:                         $value,
  139:                         'value'.$number,
  140:                         &Apache::lonlocal::texthash(%values));
  141:     my $selectposition=&Apache::loncommon::select_form(
  142:                            $position,
  143:                            'position'.$number,
  144:                            &Apache::lonlocal::texthash(%positions));
  145:     my $text=$qparms{$prefix.'text'.$number};
  146:     my %lt=&Apache::lonlocal::texthash('foil'  => 'Foil',
  147: 				       'value' => 'Value',
  148: 				       'pos'   => 'Position',
  149: 				       'text'  => 'Text');
  150: 
  151:     my $spell_link=
  152: 	&Apache::lonhtmlcommon::spelllink('simpleedit',"text$number");
  153:     return (<<ENDFOIL);
  154: <table bgcolor="#dd55ff" cellspacing="4" cellpadding="2">
  155: <tr><td colspan="2"><b>$lt{'foil'}</b></td></tr>
  156: <tr><td>$lt{'value'}: $selectvalue</td><td>$lt{'pos'}: $selectposition</td></tr>
  157: <tr><td colspan="2">$lt{'text'}:<br />
  158: <textarea style="width:100%" name="text$number" cols="80" rows="4">$text</textarea>
  159: <br />$spell_link
  160: </td></tr>
  161: </table>
  162: <br />
  163: ENDFOIL
  164: }
  165: 
  166: sub get_parent_uri {
  167:     my ($cur_symb)=@_;
  168:     my $navmap = Apache::lonnavmaps::navmap->new();
  169:     if (defined($navmap)) {
  170:         my $it = $navmap->getIterator(undef, undef, undef, 1);
  171:         while ( my $res=$it->next()) {
  172: 	    if (ref($res) &&  $res->symb() eq  $cur_symb) { last; }
  173:         }
  174:         my ($src,$symb,$anchor)=&Apache::lonnavmaps::getLinkForResource($it->getStack());
  175:         if (defined($anchor)) { $anchor='#'.$anchor; }
  176:         return $src.'?symb='.&escape($symb).$anchor;
  177:     }
  178:     return;
  179: }
  180: 
  181: sub handler {
  182:     my $r = shift;
  183: 
  184:     if ($r->header_only) {
  185:         &Apache::loncommon::content_type($r,'text/html');
  186:         $r->send_http_header;
  187:         return OK;
  188:     }
  189: 
  190: # -------------------------------------------------------------------- Allowed?
  191:     unless (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
  192: 	return HTTP_NOT_ACCEPTABLE; 
  193:     }
  194: # ----------------------------------------------------------------- Send header
  195:     &Apache::loncommon::content_type($r,'text/html');
  196:     $r->send_http_header;
  197: # ----------------------------------------------------- Figure out where we are
  198:     my $uri=$r->uri;
  199:     $uri=~s/\/smpedit$//;
  200:     my $symb=&Apache::lonnet::symbread();
  201: 
  202: # ------------------------------------------------ Prefix for everything stored
  203:     $prefix=$env{'request.course.id'}.'.'.$symb.'.0.';
  204: #----------------------------------- Prefix for storing weight of Problem Parts
  205:     my $weightprefix=$env{'request.course.id'}.'.'.$symb.'.';
  206: # ---------------------------------------------------------- Anything to store?
  207: 
  208:     if (($symb) && (defined($env{'form.questiontype'}))) {
  209:         my %storecontent=();
  210:         undef %storecontent;
  211:         if ($env{'form.questiontype'} eq 'option') {
  212: 	    my %curoptions=&evaloptionhash($env{'form.options'});
  213: 	    if ($env{'form.delopt'}) {
  214: 		delete $curoptions{$env{'form.delopt'}};
  215: 	    }
  216: 	    if ($env{'form.newopt'}) {
  217: 		$env{'form.newopt'}=~s/\'/\\\'/g;
  218:                 $curoptions{$env{'form.newopt'}}=$env{'form.newopt'};
  219: 	    }
  220:             $env{'form.options'}="('".join("','",keys %curoptions)."')";
  221: 	}
  222: 	$env{'form.hiddenparts'}='!'.$env{'form.questiontype'};
  223:         foreach (keys %env) {
  224: 	    if ($_=~/^form\.(\w+)$/) {
  225:                 my $parm=$1;
  226: 		$storecontent{$prefix.$parm}=$env{'form.'.$parm};
  227:                 $storecontent{$prefix.$parm}=~s/^\s+//s;
  228: 		$storecontent{$prefix.$parm}=~s/\s+$//s;
  229: 	    }
  230: 	}
  231: # ---------------------------------------------------- Set weights of hidden parts to zero
  232: # ------------------------------------------------------ and used part to 1
  233:         $storecontent{$weightprefix.'essay.weight'}=0;
  234:         $storecontent{$weightprefix.'numerical.weight'}=0;
  235:         $storecontent{$weightprefix.'option.weight'}=0;
  236:         $storecontent{$weightprefix.'radio.weight'}=0;
  237:         $storecontent{$weightprefix.'string.weight'}=0;
  238:         $storecontent{$weightprefix.$env{'form.questiontype'}.'.weight'}=1;
  239: 
  240: 	my $reply=&Apache::lonnet::cput
  241: 	    ('resourcedata',\%storecontent,
  242: 	     $env{'course.'.$env{'request.course.id'}.'.domain'},
  243: 	     $env{'course.'.$env{'request.course.id'}.'.num'});
  244:     }
  245:         
  246:     &Apache::lonnet::devalidatecourseresdata(
  247:                         $env{'course.'.$env{'request.course.id'}.'.num'},
  248:                         $env{'course.'.$env{'request.course.id'}.'.domain'});
  249: # ------------------------------------------------------------------- Read Data
  250: 
  251:     %qparms=&Apache::lonnet::dump('resourcedata',
  252: 		     $env{'course.'.$env{'request.course.id'}.'.domain'},
  253: 		     $env{'course.'.$env{'request.course.id'}.'.num'},
  254: 		     $env{'request.course.id'}.'.'.$symb);
  255: 
  256: # ------------------------------------------------------------ Print the screen
  257:     my $spell_header=&Apache::lonhtmlcommon::spellheader();
  258:     $r->print(&Apache::loncommon::start_page('Simple Problem Editor',
  259: 					     $spell_header));
  260:     if ($symb) {
  261: 	$r->print('<h1>'.&Apache::lonnet::gettitle($symb).'</h1>');
  262: 	$r->print('<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>');
  263:         my $displaylink = &get_parent_uri($symb);
  264:         if ($displaylink ne '') {      
  265:             $r->print('<a href="'.$displaylink.'">'.&mt('Student View').'</a> - ');
  266:         } else {
  267:             $r->print('<span class="LC_error">'.&mt('An error occurred retrieving the link to this problem').'<br />'.&mt('You may need to [_1]re-select the course[_2] and then return to this resource to view it.','<a href="/adm/roles">','</a>').'</span><br />'); 
  268:         }
  269:         $r->print(&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
  270: 		  &Apache::loncommon::help_open_topic('Caching').'</td></tr></table>');
  271: 	$r->print('<table border="2" bgcolor="#FFFFFF" width="100%"><tr><td>'.
  272:                   &rawrendering($symb).
  273:                   '</td></tr></table><br />');
  274:         $r->print('<form name="simpleedit" method="post">');
  275: # Question Type
  276:         my %questiontypes=(
  277:                'radio'     => '1 out of N multiple choice (radio button)',
  278:                'option'    => 'Option Response',
  279:                'string'    => 'Short string response',
  280:                'essay'     => 'Essay, open end',
  281:                'numerical' => 'Numerical Response');
  282:         $qtype=$qparms{$prefix.'questiontype'};
  283:         unless (defined($qtype)) { $qtype='radio'; }
  284:         unless ($questiontypes{$qtype}) { $qtype='radio'; }
  285:         $r->print('<b>'.&mt('Question Type').': '
  286:            .&Apache::loncommon::select_form(
  287:                 $qtype,
  288:                 'questiontype',
  289:                 &Apache::lonlocal::texthash(%questiontypes))
  290: 	                               ($qtype,'questiontype',%questiontypes).
  291:   '</b><br /><input type="submit" value="'.&mt('Save and Edit').
  292:   '" /><p>&nbsp;</p>');
  293: # Script
  294:         if ($qtype eq 'numerical') {
  295:            $r->print(&script());
  296:         }
  297: # Question Text
  298:         $r->print(&questiontext());
  299: # Radio, Option ===
  300: 	if (($qtype eq 'radio') || ($qtype eq 'option')) {
  301: # Response
  302:             my $maxfoils=$qparms{$prefix.'maxfoils'};
  303:             unless (defined($maxfoils)) { $maxfoils=10; }
  304:             unless ($maxfoils=~/^\d+$/) { $maxfoils=10; }
  305:             if ($maxfoils<=0) { $maxfoils=10; }
  306:             my %randomizes=(
  307:                    'yes' => 'Display foils in random order',
  308:                    'no'  => 'Display foils in order given');
  309: 	    my $randomize=$qparms{$prefix.'randomize'};
  310:             unless (defined($randomize)) { $randomize='yes'; }
  311:             unless ($randomizes{$randomize}) { $randomize='yes'; }
  312: 	    $r->print(
  313: 		  '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
  314: 	          '<tr><td>'.&mt('Max number of foils displayed').
  315: ': <input type="text" size="3" name="maxfoils" value="'.$maxfoils.'" />&nbsp;&nbsp;'.
  316:                       &Apache::loncommon::select_form(
  317:                           $randomize,
  318:                           'randomize',
  319:                           &Apache::lonlocal::texthash(%randomizes)).
  320: 		  '</td></tr><tr><td bgcolor="#AAAAAA">');
  321: # Option Response: Options
  322: 	    if ($qtype eq 'option') {
  323: 		my $options=$qparms{$prefix.'options'};
  324:                 unless (defined($options)) { $options="('true','false')"; }
  325:                 my %optionshash=&evaloptionhash($options);
  326: 		$r->print(
  327: 		  '<table bgcolor="#ffcc22" cellspacing="4" cellpadding="2">'.
  328: 		  '<tr><td><input type="hidden" name="options" value="'.
  329:                   $options.'" />'.&mt('Add new option').': '.
  330:           '<input type="text" name="newopt" size="15" />'.
  331:           &mt('Delete an option').': '.
  332:           &Apache::loncommon::select_form('','delopt',('' => '',%optionshash)).
  333:           '</td></tr><tr><td>');
  334: 	    }
  335: # Foils
  336: 	    for (my $i=1;$i<=10;$i++) {
  337: 		$r->print(&foil($i));
  338: 	    }
  339: # End Options
  340: 	    if ($qtype eq 'option') {
  341: 		$r->print('</td></tr></table>');
  342: 	    }
  343: 
  344: # End Response
  345: 	    $r->print('</td></tr></table><br />');
  346: # Hint
  347: 	    $r->print(&hint());
  348: 	}
  349: 	if ($qtype eq 'string') {
  350:             my %stringtypes=(
  351: 	       'cs' => 'Case sensitive',
  352: 	       'ci' => 'Case Insensitive',
  353: 	       'mc' => 'Multiple Choice, Order of characters unchecked');
  354:             my $stringanswer=$qparms{$prefix.'stringanswer'};
  355:             unless (defined($stringanswer)) { $stringanswer=''; }
  356:             my $stringtype=$qparms{$prefix.'stringtype'};
  357:             unless (defined($stringtype)) { $stringtype='cs'; }
  358:             unless ($stringtypes{$stringtype}) { $stringtype='cs'; }
  359: 	    $r->print(
  360: 		  '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
  361:                   '<tr><td><label>'.&mt('Correct answer').': <input type="text" size="20" name="stringanswer" value="'.$stringanswer.'" /></label>&nbsp;&nbsp;'.
  362:                       &Apache::loncommon::select_form(
  363:                           $stringtype,
  364:                           'stringtype',
  365:                           &Apache::lonlocal::texthash(%stringtypes)).
  366: 		  '</td></tr></table><br />');
  367: # Hint
  368: 	    $r->print(&hint());
  369: 	}
  370:         if ($qtype eq 'numerical') {
  371:             my $numericalanswer=$qparms{$prefix.'numericalanswer'};
  372:             unless (defined($numericalanswer)) { $numericalanswer=''; }
  373:             my $numericaltolerance=$qparms{$prefix.'numericaltolerance'};
  374:             unless (defined($numericaltolerance)) { $numericaltolerance='5%'; }
  375:             my $numericalsigfigs=$qparms{$prefix.'numericalsigfigs'};
  376:             unless (defined($numericalsigfigs)) { $numericalsigfigs='1,15'; }
  377: 
  378:             $r->print(
  379:                 '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
  380:                   '<tr><td><label>'.&mt('Correct answer').': <input type="text" size="20" name="numericalanswer" value="'.$numericalanswer.'" /></label>&nbsp;&nbsp;'.
  381:                   '<label>'.&mt('Unit').':  <input type="text" size="5" name="numericalunit" value="'.$qparms{$prefix.'numericalunit'}.'" /></label>&nbsp;&nbsp;'.
  382:                   '<label>'.&mt('Format').':  <input type="text" size="5" name="numericalformat" value="'.$qparms{$prefix.'numericalformat'}.'" /></label>&nbsp;&nbsp;'.
  383:                   '<label>'.&mt('Tolerance').':  <input type="text" size="5" name="numericaltolerance" value="'.$numericaltolerance.'" /></label>&nbsp;&nbsp;'.
  384:                   '<label>'.&mt('Significant digits').':  <input type="text" size="5" name="numericalsigfigs" value="'.$numericalsigfigs.'" /></label>'.
  385:                    '</td></tr></table><br />');
  386:             $r->print(&hint());
  387:         }
  388: # Store Button
  389: 	$r->print(
  390:   '<input type="submit" value="'.&mt('Save and Edit').'" /></form>');
  391:     } else {
  392: 	$r->print(&mt('Could not identify problem.'));
  393:     }
  394:     $r->print(&Apache::loncommon::end_page());
  395:     return OK;
  396: } 
  397: 
  398: 1;
  399: __END__