Annotation of loncom/homework/lonsimpleproblemedit.pm, revision 1.20

1.1       www         1: # The LearningOnline Network
                      2: # Simple Problem Parameter Setting "Editor"
                      3: #
1.20    ! raeburn     4: # $Id: lonsimpleproblemedit.pm,v 1.19 2006/06/30 01:16:41 albertel Exp $
1.1       www         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;
1.6       www        35: use Apache::lonlocal;
1.13      albertel   36: use Apache::lonnavmaps;
1.18      www        37: use lib '/home/httpd/lib/perl/';
                     38: use LONCAPA;
                     39:  
1.1       www        40: 
1.2       www        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: 	$returnhash{$_}=$_;
                     52:     }
                     53:     return %returnhash;
                     54: }
                     55: 
                     56: sub rawrendering {
1.11      albertel   57:     my ($symb)=@_;
                     58:     my %data=('show_errors'=>'on',
1.12      albertel   59: 	      'simple_edit_button' => 'off',
1.11      albertel   60: 	      'devalidatecourseresdata'=>'on');
                     61:     return &Apache::loncommon::get_student_view($symb,time,time,
1.15      albertel   62: 						$env{'request.course.id'},
1.11      albertel   63: 						'web',\%data);
1.2       www        64: }
                     65: 
1.1       www        66: sub questiontext {
1.2       www        67:     my $text=$qparms{$prefix.'questiontext'};
1.9       www        68:     my $qt=&mt('Question Text');
1.16      albertel   69:     my $spell_link=
                     70: 	&Apache::lonhtmlcommon::spelllink('simpleedit','questiontext');
1.1       www        71:     return (<<ENDQUESTION);
1.19      albertel   72: <table bgcolor="#dddd22" cellspacing="4" cellpadding="2" style="width:100%">
1.9       www        73: <tr><td><b>$qt</b><br />
1.14      albertel   74: <textarea style="width:100%" name="questiontext" cols="80" rows="8">$text</textarea>
1.16      albertel   75: <br />$spell_link
1.1       www        76: </td></tr>
                     77: </table>
                     78: <br />
                     79: ENDQUESTION
                     80: }
                     81: 
                     82: sub hint {
1.2       www        83:     my $text=$qparms{$prefix.'hinttext'};
1.9       www        84:     my $ht=&mt('Hint Text');
1.16      albertel   85:     my $spell_link=
                     86: 	&Apache::lonhtmlcommon::spelllink('simpleedit','hinttext');
1.1       www        87:     return (<<ENDHINT);
                     88: <table bgcolor="#accacc" cellspacing="4" cellpadding="2">
1.9       www        89: <tr><td><b>$ht</b><br />
1.14      albertel   90: <textarea style="width:100%" name="hinttext" cols="80" rows="4">$text</textarea>
1.16      albertel   91: <br />$spell_link
1.1       www        92: </td></tr>
                     93: </table>
                     94: <br />
                     95: ENDHINT
                     96: }
                     97: 
                     98: sub foil {
1.2       www        99:     my $number=shift;
                    100:     my %values='';
                    101:     if ($qtype eq 'radio') {
                    102: 	%values=('true' => 'True', 'false' => 'False');
                    103:     } elsif ($qtype eq 'option') {
                    104: 	%values=&evaloptionhash($qparms{$prefix.'options'});
                    105:     }
1.1       www       106:     $values{'unused'}='Not shown, not used';
1.2       www       107:     my $value=$qparms{$prefix.'value'.$number};
1.1       www       108:     unless (defined($value)) { $value='unused'; }
                    109:     unless ($values{$value}) { $value='unused'; }
1.2       www       110:     my $position=$qparms{$prefix.'position'.$number};
1.1       www       111:     my %positions=('random' => 'Random position',
                    112: 		   'top'    => 'Show always at top position',
                    113: 		   'bottom' => 'Show always at bottom position');
                    114:     unless (defined($position)) { $position='random'; }
                    115:     unless ($positions{$position}) {
                    116: 	$position='random';
                    117:     }
                    118:     my $selectvalue=&Apache::loncommon::select_form
                    119: 	                                ($value,'value'.$number,%values);
                    120:     my $selectposition=&Apache::loncommon::select_form
                    121:                                ($position,'position'.$number,%positions);
1.2       www       122:     my $text=$qparms{$prefix.'text'.$number};
1.9       www       123:     my %lt=&Apache::lonlocal::texthash('foil'  => 'Foil',
                    124: 				       'value' => 'Value',
                    125: 				       'pos'   => 'Position',
                    126: 				       'text'  => 'Text');
                    127: 
1.16      albertel  128:     my $spell_link=
                    129: 	&Apache::lonhtmlcommon::spelllink('simpleedit',"text$number");
1.1       www       130:     return (<<ENDFOIL);
                    131: <table bgcolor="#dd55ff" cellspacing="4" cellpadding="2">
1.9       www       132: <tr><td colspan="2"><b>$lt{'foil'}</b></td></tr>
1.10      www       133: <tr><td>$lt{'value'}: $selectvalue</td><td>$lt{'pos'}: $selectposition</td></tr>
1.9       www       134: <tr><td colspan="2">$lt{'text'}:<br />
1.14      albertel  135: <textarea style="width:100%" name="text$number" cols="80" rows="4">$text</textarea>
1.16      albertel  136: <br />$spell_link
1.1       www       137: </td></tr>
                    138: </table>
                    139: <br />
                    140: ENDFOIL
                    141: }
                    142: 
1.13      albertel  143: sub get_parent_uri {
                    144:     my ($cur_symb)=@_;
                    145:     my $navmap = Apache::lonnavmaps::navmap->new();
1.20    ! raeburn   146:     if (defined($navmap)) {
        !           147:         my $it = $navmap->getIterator(undef, undef, undef, 1);
        !           148:         while ( my $res=$it->next()) {
        !           149: 	    if (ref($res) &&  $res->symb() eq  $cur_symb) { last; }
        !           150:         }
        !           151:         my ($src,$symb,$anchor)=&Apache::lonnavmaps::getLinkForResource($it->getStack());
        !           152:         if (defined($anchor)) { $anchor='#'.$anchor; }
        !           153:         return $src.'?symb='.&escape($symb).$anchor;
1.13      albertel  154:     }
1.20    ! raeburn   155:     return;
1.13      albertel  156: }
                    157: 
1.1       www       158: sub handler {
                    159:     my $r = shift;
                    160: 
                    161:     if ($r->header_only) {
1.6       www       162:         &Apache::loncommon::content_type($r,'text/html');
1.1       www       163:         $r->send_http_header;
                    164:         return OK;
                    165:     }
                    166: 
                    167: # -------------------------------------------------------------------- Allowed?
1.15      albertel  168:     unless (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1.1       www       169: 	return HTTP_NOT_ACCEPTABLE; 
                    170:     }
                    171: # ----------------------------------------------------------------- Send header
1.6       www       172:     &Apache::loncommon::content_type($r,'text/html');
1.1       www       173:     $r->send_http_header;
                    174: # ----------------------------------------------------- Figure out where we are
                    175:     my $uri=$r->uri;
                    176:     $uri=~s/\/smpedit$//;
1.13      albertel  177:     my $symb=&Apache::lonnet::symbread();
1.1       www       178: 
1.2       www       179: # ------------------------------------------------ Prefix for everything stored
1.15      albertel  180:     $prefix=$env{'request.course.id'}.'.'.$symb.'.0.';
1.1       www       181: # ---------------------------------------------------------- Anything to store?
                    182: 
1.15      albertel  183:     if (($symb) && (defined($env{'form.questiontype'}))) {
1.1       www       184:         my %storecontent=();
                    185:         undef %storecontent;
1.15      albertel  186:         if ($env{'form.questiontype'} eq 'option') {
                    187: 	    my %curoptions=&evaloptionhash($env{'form.options'});
                    188: 	    if ($env{'form.delopt'}) {
                    189: 		delete $curoptions{$env{'form.delopt'}};
1.2       www       190: 	    }
1.15      albertel  191: 	    if ($env{'form.newopt'}) {
                    192: 		$env{'form.newopt'}=~s/\'/\\\'/g;
                    193:                 $curoptions{$env{'form.newopt'}}=$env{'form.newopt'};
1.2       www       194: 	    }
1.15      albertel  195:             $env{'form.options'}="('".join("','",keys %curoptions)."')";
1.2       www       196: 	}
1.15      albertel  197: 	$env{'form.hiddenparts'}='!'.$env{'form.questiontype'};
                    198:         foreach (keys %env) {
1.1       www       199: 	    if ($_=~/^form\.(\w+)$/) {
1.2       www       200:                 my $parm=$1;
1.15      albertel  201: 		$storecontent{$prefix.$parm}=$env{'form.'.$parm};
1.2       www       202:                 $storecontent{$prefix.$parm}=~s/^\s+//s;
                    203: 		$storecontent{$prefix.$parm}=~s/\s+$//s;
1.1       www       204: 	    }
                    205: 	}
                    206: 	my $reply=&Apache::lonnet::cput
                    207: 	    ('resourcedata',\%storecontent,
1.15      albertel  208: 	     $env{'course.'.$env{'request.course.id'}.'.domain'},
                    209: 	     $env{'course.'.$env{'request.course.id'}.'.num'});
1.1       www       210: 
                    211:     }
1.2       www       212: # ------------------------------------------------------------------- Read Data
                    213: 
                    214:     %qparms=&Apache::lonnet::dump('resourcedata',
1.15      albertel  215: 		     $env{'course.'.$env{'request.course.id'}.'.domain'},
                    216: 		     $env{'course.'.$env{'request.course.id'}.'.num'},
                    217: 		     $env{'request.course.id'}.'.'.$symb);
1.2       www       218: 
1.1       www       219: # ------------------------------------------------------------ Print the screen
1.16      albertel  220:     my $spell_header=&Apache::lonhtmlcommon::spellheader();
1.17      albertel  221:     $r->print(&Apache::loncommon::start_page('Simple Problem Editor',
                    222: 					     $spell_header));
1.1       www       223:     if ($symb) {
                    224: 	$r->print('<h1>'.&Apache::lonnet::gettitle($symb).'</h1>');
1.20    ! raeburn   225: 	$r->print('<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>');
        !           226:         my $displaylink = &get_parent_uri($symb);
        !           227:         if ($displaylink ne '') {      
        !           228:             $r->print('<a href="'.$displaylink.'">'.&mt('Student View').'</a> - ');
        !           229:         } else {
        !           230:             $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 />'); 
        !           231:         }
        !           232:         $r->print(&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.12      albertel  233: 		  &Apache::loncommon::help_open_topic('Caching').'</td></tr></table>');
1.2       www       234: 	$r->print('<table border="2" bgcolor="#FFFFFF" width="100%"><tr><td>'.
1.11      albertel  235:                   &rawrendering($symb).
1.2       www       236:                   '</td></tr></table><br />');
1.16      albertel  237:         $r->print('<form name="simpleedit" method="POST">');
1.2       www       238: # Question Type        
                    239: 	my %questiontypes=('radio'  => 
                    240:                                '1 out of N multiple choice (radio button)',
1.3       www       241: 			   'option' => 'Option response',
                    242:                            'string' => 'Short string response',
                    243:                            'essay'  => 'Essay, open end');
1.2       www       244:         $qtype=$qparms{$prefix.'questiontype'};
                    245:         unless (defined($qtype)) { $qtype='radio'; }
                    246:         unless ($questiontypes{$qtype}) { $qtype='radio'; }
1.9       www       247:         $r->print('<b>'.&mt('Question Type').
                    248: 		  ': '.&Apache::loncommon::select_form
1.2       www       249: 	                               ($qtype,'questiontype',%questiontypes).
1.12      albertel  250:   '</b><br /><input type="submit" value="'.&mt('Save and Edit').
1.6       www       251:   '" /><p>&nbsp;</p>');
1.2       www       252: # Question Text
                    253:         $r->print(&questiontext());
                    254: # Radio, Option ===
                    255: 	if (($qtype eq 'radio') || ($qtype eq 'option')) {
                    256: # Response
                    257:             my $maxfoils=$qparms{$prefix.'maxfoils'};
                    258:             unless (defined($maxfoils)) { $maxfoils=10; }
                    259:             unless ($maxfoils=~/^\d+$/) { $maxfoils=10; }
                    260:             if ($maxfoils<=0) { $maxfoils=10; }
                    261: 	    my %randomizes=('yes' => 'Display foils in random order',
                    262: 			    'no'  => 'Display foils in order given');
                    263: 	    my $randomize=$qparms{$prefix.'randomize'};
                    264:             unless (defined($randomize)) { $randomize='yes'; }
                    265:             unless ($randomizes{$randomize}) { $randomize='yes'; }
                    266: 	    $r->print(
                    267: 		  '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
1.6       www       268: 	          '<tr><td>'.&mt('Max number of foils displayed').
                    269: ': <input type="text" size="3" name="maxfoils" value="'.$maxfoils.'" />&nbsp;&nbsp;'.
1.2       www       270: 		      &Apache::loncommon::select_form
                    271: 		      ($randomize,'randomize',%randomizes).
                    272: 		  '</td></tr><tr><td bgcolor="#AAAAAA">');
                    273: # Option Response: Options
                    274: 	    if ($qtype eq 'option') {
                    275: 		my $options=$qparms{$prefix.'options'};
                    276:                 unless (defined($options)) { $options="('true','false')"; }
                    277:                 my %optionshash=&evaloptionhash($options);
                    278: 		$r->print(
                    279: 		  '<table bgcolor="#ffcc22" cellspacing="4" cellpadding="2">'.
                    280: 		  '<tr><td><input type="hidden" name="options" value="'.
1.9       www       281:                   $options.'" />'.&mt('Add new option').': '.
1.6       www       282:           '<input type="text" name="newopt" size="15" />'.
                    283:           &mt('Delete an option').': '.
1.2       www       284:           &Apache::loncommon::select_form('','delopt',('' => '',%optionshash)).
                    285:           '</td></tr><tr><td>');
                    286: 	    }
                    287: # Foils
                    288: 	    for (my $i=1;$i<=10;$i++) {
                    289: 		$r->print(&foil($i));
                    290: 	    }
                    291: # End Options
                    292: 	    if ($qtype eq 'option') {
                    293: 		$r->print('</td></tr></table>');
                    294: 	    }
1.1       www       295: 
1.2       www       296: # End Response
                    297: 	    $r->print('</td></tr></table><br />');
1.3       www       298: # Hint
                    299: 	    $r->print(&hint());
1.2       www       300: 	}
1.3       www       301: 	if ($qtype eq 'string') {
                    302:             my %stringtypes=(
                    303: 	       'cs' => 'Case sensitive',
                    304: 	       'ci' => 'Case Insensitive',
                    305: 	       'mc' => 'Multiple Choice, Order of characters unchecked');
                    306:             my $stringanswer=$qparms{$prefix.'stringanswer'};
                    307:             unless (defined($stringanswer)) { $stringanswer=''; }
                    308:             my $stringtype=$qparms{$prefix.'stringtype'};
                    309:             unless (defined($stringtype)) { $stringtype='cs'; }
                    310:             unless ($stringtypes{$stringtype}) { $stringtype='cs'; }
                    311: 	    $r->print(
                    312: 		  '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
1.6       www       313: 	          '<tr><td>'.&mt('Correct answer').': <input type="text" size="20" name="stringanswer" value="'.$stringanswer.'" />&nbsp;&nbsp;'.
1.3       www       314: 		      &Apache::loncommon::select_form
                    315: 		      ($stringtype,'stringtype',%stringtypes).
                    316: 		  '</td></tr></table><br />');
1.2       www       317: # Hint
1.3       www       318: 	    $r->print(&hint());
                    319: 	}
1.2       www       320: # Store Button
                    321: 	$r->print(
1.12      albertel  322:   '<input type="submit" value="'.&mt('Save and Edit').'" /></form>');
1.1       www       323:     } else {
1.6       www       324: 	$r->print(&mt('Could not identify problem.'));
1.1       www       325:     }
1.17      albertel  326:     $r->print(&Apache::loncommon::end_page());
1.1       www       327:     return OK;
                    328: } 
                    329: 
                    330: 1;
                    331: __END__

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