Annotation of loncom/homework/inputtags.pm, revision 1.208

1.43      albertel    1: # The LearningOnline Network with CAPA
                      2: # input  definitons
1.47      albertel    3: #
1.208   ! albertel    4: # $Id: inputtags.pm,v 1.207 2006/09/29 23:04:37 albertel Exp $
1.47      albertel    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/
1.1       albertel   27: 
                     28: package Apache::inputtags;
1.55      albertel   29: use HTML::Entities();
1.1       albertel   30: use strict;
1.82      www        31: use Apache::loncommon;
1.115     www        32: use Apache::lonlocal;
1.165     albertel   33: use Apache::lonnet;
1.192     www        34: use lib '/home/httpd/lib/perl/';
                     35: use LONCAPA;
                     36:  
1.1       albertel   37: 
1.50      harris41   38: BEGIN {
1.135     albertel   39:     &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
1.1       albertel   40: }
                     41: 
1.177     foxr       42: #   Initializes a set of global variables used during the parse of the problem.
                     43: #
1.178     albertel   44: #  @Apache::inputtags::input        - List of current input ids.
                     45: #  @Apache::inputtags::inputlist    - List of all input ids seen this problem.
                     46: #  @Apache::inputtags::response     - List of all current resopnse ids.
                     47: #  @Apache::inputtags::responselist - List of all response ids seen this 
                     48: #                                       problem.
                     49: #  @Apache::inputtags::hint         - List of all hint ids.
                     50: #  @Apache::inputtags::hintlist     - List of all hint ids seen this problem.
                     51: #  @Apache::inputtags::previous     - List describing if specific responseds
                     52: #                                       have been used
                     53: #  @Apache::inputtags::previous_version - Submission responses were used in.
                     54: #  $Apache::inputtags::part         - Current part id (valid only in 
                     55: #                                       <problem>)
                     56: #                                     0 if not in a part.
                     57: #  @Apache::inputtags::partlist     - List of part ids seen in the current
                     58: #                                       <problem>
                     59: #  @Apache::inputtags::status       - List of problem  statuses. First 
                     60: #                                     element is the status of the <problem>
                     61: #                                     the remainder are for individual <part>s.
                     62: #  %Apache::inputtags::params       - Hash of defined parameters for the
                     63: #                                     current response.
                     64: #  @Apache::inputtags::import       - List of all ids for <import> thes get
                     65: #                                     join()ed and prepended.
                     66: #  @Apache::inputtags::importlist   - List of all import ids seen.
                     67: #  $Apache::inputtags::response_with_no_part
                     68: #                                   - Flag set true if we have seen a response
                     69: #                                     that is not inside a <part>
                     70: #  %Apache::inputtags::answertxt    - <*response> tags store correct
                     71: #                                     answer strings for display by <textline/>
                     72: #                                     in this hash.
                     73: 
1.1       albertel   74: sub initialize_inputtags {
1.135     albertel   75:     @Apache::inputtags::input=();
                     76:     @Apache::inputtags::inputlist=();
1.174     albertel   77:     @Apache::inputtags::response=();
1.135     albertel   78:     @Apache::inputtags::responselist=();
1.174     albertel   79:     @Apache::inputtags::hint=();
1.173     albertel   80:     @Apache::inputtags::hintlist=();
1.135     albertel   81:     @Apache::inputtags::previous=();
                     82:     @Apache::inputtags::previous_version=();
                     83:     $Apache::inputtags::part='';
                     84:     @Apache::inputtags::partlist=();
                     85:     @Apache::inputtags::status=();
                     86:     %Apache::inputtags::params=();
                     87:     @Apache::inputtags::import=();
                     88:     @Apache::inputtags::importlist=();
                     89:     $Apache::inputtags::response_with_no_part=0;
1.144     albertel   90:     %Apache::inputtags::answertxt=();
1.103     albertel   91: }
                     92: 
                     93: sub check_for_duplicate_ids {
                     94:     my %check;
                     95:     foreach my $id (@Apache::inputtags::partlist,
                     96: 		    @Apache::inputtags::responselist,
1.173     albertel   97: 		    @Apache::inputtags::hintlist,
1.103     albertel   98: 		    @Apache::inputtags::importlist) {
                     99: 	$check{$id}++;
                    100:     }
                    101:     my @duplicates;
                    102:     foreach my $id (sort(keys(%check))) {
                    103: 	if ($check{$id} > 1) {
                    104: 	    push(@duplicates,$id);
                    105: 	}
                    106:     }
                    107:     if (@duplicates) {
                    108: 	&Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
                    109:     }
1.1       albertel  110: }
                    111: 
1.14      albertel  112: sub start_input {
1.135     albertel  113:     my ($parstack,$safeeval)=@_;
                    114:     my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
                    115:     if ($id eq '') { $id = $Apache::lonxml::curdepth; }
                    116:     push (@Apache::inputtags::input,$id);
                    117:     push (@Apache::inputtags::inputlist,$id);
                    118:     return $id;
1.14      albertel  119: }
                    120: 
                    121: sub end_input {
1.135     albertel  122:     pop @Apache::inputtags::input;
                    123:     return '';
1.14      albertel  124: }
                    125: 
1.124     www       126: sub addchars {
                    127:     my ($fieldid,$addchars)=@_;
                    128:     my $output='';
                    129:     foreach (split(/\,/,$addchars)) {
                    130: 	$output.='<a href="javascript:void(document.forms.lonhomework.'.
                    131: 	    $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
                    132:     }
                    133:     return $output;
                    134: }
                    135: 
1.48      albertel  136: sub start_textfield {
1.185     albertel  137:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.135     albertel  138:     my $result = "";
                    139:     my $id = &start_input($parstack,$safeeval);
                    140:     my $resid=$Apache::inputtags::response[-1];
                    141:     if ($target eq 'web') {
                    142: 	$Apache::lonxml::evaluate--;
1.205     albertel  143: 	my $partid=$Apache::inputtags::part;
                    144: 	my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
1.135     albertel  145: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    146: 	    my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
                    147: 	    if ( $cols eq '') { $cols = 80; }
                    148: 	    my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
1.143     www       149: 	    if ( $rows eq '') { $rows = 16; }
1.135     albertel  150: 	    my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
                    151: 	    $result='';
                    152: 	    if ($addchars) {
                    153: 		$result.=&addchars('HWVAL_'.$resid,$addchars);
                    154: 	    }
1.191     albertel  155: 	    &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
1.143     www       156: 	    $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
1.135     albertel  157: 		"rows=\"$rows\" cols=\"$cols\">".$oldresponse;
                    158: 	    if ($oldresponse ne '') {
1.143     www       159: 
1.135     albertel  160: 		#get rid of any startup text if the user has already responded
1.185     albertel  161: 		&Apache::lonxml::get_all_text("/textfield",$parser,$style);
1.135     albertel  162: 	    }
                    163: 	} else {
1.205     albertel  164: 	    #show past answer in the essayresponse case
                    165: 	    if ($oldresponse =~ /\S/
                    166: 		&& &Apache::londefdef::is_inside_of($tagstack,
                    167: 						    'essayresponse') ) {
                    168: 		$result='<table class="LC_pastsubmission"><tr><td>'.
                    169: 		    $oldresponse.'</td></tr></table>';
                    170: 	    }
1.135     albertel  171: 	    #get rid of any startup text
1.185     albertel  172: 	    &Apache::lonxml::get_all_text("/textfield",$parser,$style);
1.61      albertel  173: 	}
1.135     albertel  174:     } elsif ($target eq 'grade') {
1.185     albertel  175: 	my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
                    176: 						   $style);
1.165     albertel  177: 	if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
1.135     albertel  178: 	    # if the seed text is still there it wasn't a real submission
1.165     albertel  179: 	    $env{'form.HWVAL_'.$resid}='';
1.135     albertel  180: 	}
                    181:     } elsif ($target eq 'edit') {
                    182: 	$result.=&Apache::edit::tag_start($target,$token);
                    183: 	$result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
                    184: 	$result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
                    185: 	$result.=&Apache::edit::text_arg
                    186: 	    ('Click-On Texts (comma sep):','addchars',$token,10);
1.185     albertel  187: 	my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
                    188: 						   $style);
1.135     albertel  189: 	$result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
                    190:     } elsif ($target eq 'modified') {
                    191: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    192: 						     $safeeval,'rows','cols',
                    193: 						     'addchars');
                    194: 	if ($constructtag) {
                    195: 	    $result = &Apache::edit::rebuild_tag($token);
                    196: 	} else {
                    197: 	    $result=$token->[4];
                    198: 	}
                    199: 	$result.=&Apache::edit::modifiedfield("/textfield",$parser);
                    200:     } elsif ($target eq 'tex') {
                    201: 	my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
                    202: 	my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
                    203: 	if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
                    204: 	    $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
                    205: 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
                    206: 	    $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
                    207: 	} else {
                    208: 	    my $TeXwidth=$width_of_box/80;
                    209: 	    $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
                    210: 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
                    211: 	    $result.='}}}\vskip 2 mm ';
                    212: 	}
1.60      albertel  213:     }
1.135     albertel  214:     return $result;
1.6       albertel  215: }
                    216: 
1.48      albertel  217: sub end_textfield {
1.135     albertel  218:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    219:     my $result;
                    220:     if ($target eq 'web') {
                    221: 	$Apache::lonxml::evaluate++;
                    222: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    223: 	    return "</textarea>";
                    224: 	}
                    225:     } elsif ($target eq 'edit') {
                    226: 	$result=&Apache::edit::end_table();
                    227:     }
                    228:     &end_input;
                    229:     return $result;
1.6       albertel  230: }
                    231: 
1.190     albertel  232: sub exam_score_line {
1.188     albertel  233:     my ($target) = @_;
1.190     albertel  234: 
1.188     albertel  235:     my $result;
                    236:     if ($target eq 'tex') {
                    237: 	my $repetition = &Apache::response::repetition();
                    238: 	$result.='\begin{enumerate}';
1.190     albertel  239: 	if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
1.188     albertel  240: 	foreach my $i (0..$repetition-1) {
                    241: 	    $result.='\item[\textbf{'.
                    242: 		($Apache::lonxml::counter+$i).
                    243: 		'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
                    244: 	}
                    245: 	$result.= '\end{enumerate}';
1.190     albertel  246:     }
                    247: 
                    248:     return $result;
                    249: }
                    250: 
                    251: sub exam_box {
                    252:     my ($target) = @_;
                    253:     my $result;
1.188     albertel  254: 
1.190     albertel  255:     if ($target eq 'tex') {
                    256: 	$result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
                    257: 	$result .= &exam_score_line($target);
1.188     albertel  258:     } elsif ($target eq 'web') {
                    259: 	my $id=$Apache::inputtags::response[-1];
                    260: 	$result.= '<br /><br />
                    261:                    <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
                    262:                    </textarea> <br /><br />';
                    263:     }
                    264:     return $result;
                    265: }
                    266: 
                    267: sub needs_exam_box {
                    268:     my ($tagstack) = @_;
                    269:     my @tags = ('formularesponse',
                    270: 		'stringresponse',
                    271: 		'reactionresponse',
                    272: 		'organicresponse',
                    273: 		);
                    274: 
                    275:     foreach my $tag (@tags) {
                    276: 	if (grep(/\Q$tag\E/,@$tagstack)) {
                    277: 	    return 1;
                    278: 	}
                    279:     }
                    280:     return 0;
                    281: }
                    282: 
1.1       albertel  283: sub start_textline {
1.135     albertel  284:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    285:     my $result = "";
1.208   ! albertel  286:     my $id = &start_input($parstack,$safeeval);
1.135     albertel  287:     if ($target eq 'web') {
                    288: 	$Apache::lonxml::evaluate--;
                    289: 	my $partid=$Apache::inputtags::part;
                    290: 	my $id=$Apache::inputtags::response[-1];
1.204     albertel  291: 	if (!&Apache::response::show_answer()) {
1.135     albertel  292: 	    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
                    293: 	    my $maxlength;
                    294: 	    if ($size eq '') { $size=20; } else {
                    295: 		if ($size < 20) { $maxlength=$size; }
                    296: 	    }
1.138     albertel  297: 	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
1.135     albertel  298: 	    if ($Apache::lonhomework::type ne 'exam') {
                    299: 		my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
                    300: 		$result='';
                    301: 		if ($addchars) {
                    302: 		    $result.=&addchars('HWVAL_'.$id,$addchars);
                    303: 		}
1.157     albertel  304: 		my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
                    305: 							$safeeval);
1.193     albertel  306: 		if (lc($readonly) eq 'yes' 
                    307: 		    || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
1.157     albertel  308: 		    $readonly=' readonly="readonly" ';
1.158     albertel  309: 		} else {
                    310: 		    $readonly='';
1.157     albertel  311: 		}
1.193     albertel  312: 		my $name = 'HWVAL_'.$id;
                    313: 		if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
                    314: 		    $name = "none";
                    315: 		}
                    316: 		$result.= '<input type="text" '.$readonly.' name="'.$name.'" value="'.
1.135     albertel  317: 		    $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
                    318: 	    }
1.188     albertel  319: 	    if ($Apache::lonhomework::type eq 'exam'
                    320: 		&& &needs_exam_box($tagstack)) {
                    321: 		$result.=&exam_box($target);
                    322: 	    }
1.135     albertel  323: 	} else {
                    324: 	    #right or wrong don't show what was last typed in.
1.208   ! albertel  325: 	    my $count = scalar(@Apache::inputtags::inputlist)-1;
        !           326: 	    $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
1.144     albertel  327: 	    #$result='';
1.135     albertel  328: 	}
                    329:     } elsif ($target eq 'edit') {
                    330: 	$result=&Apache::edit::tag_start($target,$token);
                    331: 	$result.=&Apache::edit::text_arg('Size:','size',$token,'5').
1.157     albertel  332: 	    &Apache::edit::text_arg('Click-On Texts (comma sep):',
                    333: 				    'addchars',$token,10);
                    334:         $result.=&Apache::edit::select_arg('Readonly:','readonly',
                    335: 					   ['no','yes'],$token);
                    336: 	$result.=&Apache::edit::end_row();
                    337: 	$result.=&Apache::edit::end_table();
1.135     albertel  338:     } elsif ($target eq 'modified') {
1.157     albertel  339: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    340: 						     $safeeval,'size',
                    341: 						     'addchars','readonly');
1.135     albertel  342: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.188     albertel  343:     } elsif ($target eq 'tex' 
                    344: 	     && $Apache::lonhomework::type ne 'exam') {
1.135     albertel  345: 	my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
                    346: 	if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
                    347: 	$result='\framebox['.$size.'][s]{\tiny\strut}';
1.188     albertel  348: 
                    349:     } elsif ($target eq 'tex' 
                    350: 	     && $Apache::lonhomework::type eq 'exam'
                    351: 	     && &needs_exam_box($tagstack)) {
                    352: 	$result.=&exam_box($target);
1.135     albertel  353:     }
                    354:     return $result;
1.1       albertel  355: }
                    356: 
                    357: sub end_textline {
1.135     albertel  358:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    359:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    360:     elsif ($target eq 'edit') { return ('','no'); }
1.208   ! albertel  361:     &end_input();
1.135     albertel  362:     return "";
1.9       albertel  363: }
                    364: 
1.98      albertel  365: sub start_hiddenline {
                    366:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    367:     my $result = "";
                    368:     if ($target eq 'web') {
                    369: 	$Apache::lonxml::evaluate--;
                    370: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    371: 	    my $partid=$Apache::inputtags::part;
                    372: 	    my $id=$Apache::inputtags::response[-1];
1.138     albertel  373: 	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
1.98      albertel  374: 	    if ($Apache::lonhomework::type ne 'exam') {
                    375: 		$result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
                    376: 		    $oldresponse.'" />';
                    377: 	    }
                    378: 	}
                    379:     } elsif ($target eq 'edit') {
                    380: 	$result=&Apache::edit::tag_start($target,$token);
                    381: 	$result.=&Apache::edit::end_table;
                    382:     }
1.189     albertel  383: 
                    384:     if ( ($target eq 'web' || $target eq 'tex')
                    385: 	 && $Apache::lonhomework::type eq 'exam'
                    386: 	 && &needs_exam_box($tagstack)) {
                    387: 	$result.=&exam_box($target);
                    388:     }
1.98      albertel  389:     return $result;
                    390: }
                    391: 
                    392: sub end_hiddenline {
1.135     albertel  393:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    394:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    395:     elsif ($target eq 'edit') { return ('','no'); }
                    396:     return "";
1.98      albertel  397: }
                    398: 
1.160     albertel  399: # $part -> partid
                    400: # $id -> responseid
                    401: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
                    402: # $which -> 'uploadedonly'  -> only newly uploaded files
                    403: #           'portfolioonly' -> only allow files from portfolio
                    404: #           'both' -> allow files from either location
1.175     albertel  405: # $extratext -> additional text to go between the link and the input box
1.160     albertel  406: # returns a table row <tr> 
                    407: sub file_selector {
1.175     albertel  408:     my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
1.160     albertel  409:     if (!$uploadedfiletypes) { return ''; }
1.167     albertel  410: 
                    411:     my $jspart=$part;
                    412:     $jspart=~s/\./_/g;
                    413: 
1.160     albertel  414:     my $result;
                    415:     
1.162     albertel  416:     $result.='<tr><td>';
                    417:     if ($uploadedfiletypes ne '*') {
                    418: 	$result.=
                    419: 	    &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
                    420:     }
1.160     albertel  421:     if ($which eq 'uploadonly' || $which eq 'both') { 
                    422: 	$result.=&mt('Submit a file: (only one file can be uploaded)').
                    423: 	    ' <br /><input type="file" size="50" name="HWFILE'.
1.167     albertel  424: 	    $jspart.'_'.$id.'" /><br />';
1.205     albertel  425: 	$result .= &show_past_file_submission($part,$id);
1.160     albertel  426:     }
                    427:     if ( $which eq 'both') { 
                    428: 	$result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
                    429:     }
                    430:     if ($which eq 'portfolioonly' || $which eq 'both') { 
1.175     albertel  431: 	$result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&amp;fieldname=HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
1.160     albertel  432: 	    &mt('Select Portfolio Files').'</a><br />'.
1.167     albertel  433: 	    '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
1.160     albertel  434: 	    '<br />';
1.205     albertel  435: 	$result .= &show_past_portfile_submission($part,$id);
                    436: 
1.160     albertel  437:     }
                    438:     $result.='</td></tr>'; 
                    439:     return $result;
                    440: }
                    441: 
1.205     albertel  442: sub show_past_file_submission {
                    443:     my ($part,$id) = @_;
                    444:     my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
                    445: 
                    446:     return if (!$uploadedfile);
                    447: 
                    448:     my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
                    449:     &Apache::lonxml::extlink($url);
                    450:     &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
                    451:     my $icon=&Apache::loncommon::icon($url);
                    452:     my $curfile='<a href="'.$url.'"><img src="'.$icon.
                    453: 	'" border="0" />'.$uploadedfile.'</a>';
                    454:     return &mt('Currently submitted: <tt>[_1]</tt>',$curfile);
                    455: 
                    456: }
                    457: 
                    458: sub show_past_portfile_submission {
                    459:     my ($part,$id) = @_;
                    460:     if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}!~/[^\s]/){
                    461: 	return;
                    462:     }
                    463:     my (@file_list,@bad_file_list);
                    464:     foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
                    465: 	my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
                    466: 	my $url="/uploaded/$domain/$user/portfolio$file";
                    467: 	my $icon=&Apache::loncommon::icon($url);
                    468: 	push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
                    469: 	     '" border="0" />'.$file.'</a>');
                    470: 	if (! &Apache::lonnet::stat_file($url)) {
                    471: 	    &Apache::lonnet::logthis("bad file is $url");
                    472: 	    push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
                    473: 		 '" border="0" />'.$file.'</a>');
                    474: 	}
                    475:     }
                    476:     my $files = '<span class="LC_filename">'.
                    477: 	join('</span>, <span class="LC_filename">',@file_list).
                    478: 	'</span>';
                    479:     my $result = &mt("Portfolio files previously selected: [_1]",$files);
                    480:     if (@bad_file_list) {
                    481: 	my $bad_files = '<span class="LC_filename">'.
                    482: 	    join('</span>, <span class="LC_filename">',@bad_file_list).
                    483: 	    '</span>';
                    484: 	$result.='<br />'.&mt('<span class="LC_error">These file(s) don\'t exist:</span> [_1]',$bad_files);
                    485:     }
                    486:     return $result;
                    487: 
                    488: }
                    489: 
1.179     albertel  490: sub valid_award {
                    491:     my ($award) =@_;
1.182     albertel  492:     foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
                    493: 			       'NO_RESPONSE',
1.179     albertel  494: 			       'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
                    495: 			       'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
                    496: 			       'UNIT_FAIL', 'NO_UNIT',
                    497: 			       'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
                    498: 			       'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT', 
                    499: 			       'MISORDERED_RANK', 'INVALID_FILETYPE',
                    500: 			       'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
                    501: 			       'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
                    502: 	if ($award eq $possibleaward) { return 1; }
                    503:     }
                    504:     return 0;
                    505: }
                    506: 
1.207     albertel  507: {
                    508:     my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
                    509: 		  'TOO_LONG',
                    510: 		  'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
                    511: 		  'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
                    512: 		  'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
                    513: 		  'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
                    514: 		  'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
                    515: 		  'APPROX_ANS', 'EXACT_ANS');
                    516:     my $i=0;
                    517:     my %fwd_awards = map { ($_,$i++) } @awards;
                    518:     my $max=scalar(@awards);
                    519:     @awards=reverse(@awards);
1.208   ! albertel  520:     $i=0;
1.207     albertel  521:     my %rev_awards = map { ($_,$i++) } @awards;
                    522: 
1.9       albertel  523: sub finalizeawards {
1.181     albertel  524:     my ($awardref,$msgref,$nameref,$reverse)=@_;
1.207     albertel  525:     my $result;
1.136     albertel  526:     if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
1.135     albertel  527:     if ($result eq '' ) {
                    528: 	my $blankcount;
1.207     albertel  529: 	foreach my $award (@$awardref) {
1.135     albertel  530: 	    if ($award eq '') {
                    531: 		$result='MISSING_ANSWER';
                    532: 		$blankcount++;
                    533: 	    }
                    534: 	}
1.136     albertel  535: 	if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
1.135     albertel  536:     }
1.207     albertel  537:     if (defined($result)) { return ($result); }
1.181     albertel  538: 
                    539:     # these awards are ordered from most important error through best correct
1.207     albertel  540:     my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
                    541: 
                    542:     my $best = $max;
                    543:     my $j=0;
                    544:     my $which;
                    545:     foreach my $award (@$awardref) {
                    546: 	if ($awards->{$award} < $best) {
                    547: 	    $best  = $awards->{$award};
                    548: 	    $which = $j;
                    549: 	}
                    550: 	$j++;
                    551:     }
                    552:     if (defined($which)) {
                    553: 	if (ref($nameref)) {
                    554: 	    return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
                    555: 	} else {
                    556: 	    return ($$awardref[$which],$$msgref[$which]);
                    557: 	}
1.135     albertel  558:     }
1.136     albertel  559:     return ('ERROR',undef);
1.9       albertel  560: }
1.207     albertel  561: }
1.9       albertel  562: 
1.10      albertel  563: sub decideoutput {
1.169     albertel  564:     my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
1.135     albertel  565:     my $message='';
                    566:     my $button=0;
                    567:     my $previousmsg;
                    568:     my $bgcolor='orange';
1.148     albertel  569:     my $added_computer_text=0;
1.135     albertel  570:     my %possiblecolors =
1.201     albertel  571: 	( 'correct'         => '#aaffaa',
                    572: 	  'charged_try'     => '#ffaaaa',
1.135     albertel  573: 	  'not_charged_try' => '#ffffaa',
1.201     albertel  574: 	  'no_grade'        => '#ffffaa',
                    575: 	  'no_message'      => '#ffffff',
1.135     albertel  576: 	  );
1.169     albertel  577: 
1.180     albertel  578:     my $part = $Apache::inputtags::part;
                    579:     my $handgrade = 
                    580: 	('yes' eq lc(&Apache::lonnet::EXT("resource.$part.handgrade")));
                    581:     
                    582:     my $computer = ($handgrade)? ''
1.203     www       583: 	                       : " ".&mt("Computer's answer now shown above.");
1.180     albertel  584:     &Apache::lonxml::debug("handgrade has :$handgrade:");
                    585: 
1.135     albertel  586:     if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
                    587:     
1.194     banghart  588:     if ($solved =~ /^correct/) {
                    589:         $bgcolor=$possiblecolors{'correct'};
1.170     albertel  590: 	$message=&mt('You are correct.');
                    591: 	if ($awarded < 1 && $awarded > 0) {
                    592: 	    $message=&mt('You are partially correct.');
                    593: 	    $bgcolor=$possiblecolors{'not_charged_try'};
                    594: 	} elsif ($awarded < 1) {
                    595: 	    $message=&mt('Incorrect.');
                    596: 	    $bgcolor=$possiblecolors{'charged_try'};
                    597: 	}
1.172     albertel  598: 	if ($env{'request.filename'} =~ 
                    599: 	    m|/res/lib/templates/examupload.problem$|) {
                    600: 	    $message = &mt("A score has been assigned.");
                    601: 	    $added_computer_text=1;
1.135     albertel  602: 	} else {
1.172     albertel  603: 	    if ($target eq 'tex') {
                    604: 		$message = '\textbf{'.$message.'}';
                    605: 	    } else {
                    606: 		$message = "<b>".$message."</b>";
1.180     albertel  607: 		$message.= $computer;
1.135     albertel  608: 	    }
1.172     albertel  609: 	    $added_computer_text=1;
1.165     albertel  610: 	    unless ($env{'course.'.
                    611: 			     $env{'request.course.id'}.
1.135     albertel  612: 			     '.disable_receipt_display'} eq 'yes') { 
                    613: 		$message.=(($target eq 'web')?'<br />':' ').
                    614: 		    &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
                    615: 		    (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
                    616: 	    }
                    617: 	}
                    618: 	$button=0;
                    619: 	$previousmsg='';
                    620:     } elsif ($solved =~ /^excused/) {
                    621: 	if ($target eq 'tex') {
                    622: 	    $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
                    623: 	} else {
                    624: 	    $message = "<b>".&mt('You are excused from the problem.')."</b>";
                    625: 	}
                    626: 	$bgcolor=$possiblecolors{'charged_try'};
                    627: 	$button=0;
                    628: 	$previousmsg='';
                    629:     } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
                    630: 	if ($solved =~ /^incorrect/ || $solved eq '') {
1.144     albertel  631: 	    $message = &mt("Incorrect").".";
1.135     albertel  632: 	    $bgcolor=$possiblecolors{'charged_try'};
                    633: 	    $button=1;
                    634: 	} else {
1.144     albertel  635: 	    if ($target eq 'tex') {
                    636: 		$message = '\textbf{'.&mt('You are correct.').'}';
                    637: 	    } else {
                    638: 		$message = "<b>".&mt('You are correct.')."</b>";
1.180     albertel  639: 		$message.= $computer;
1.144     albertel  640: 	    }
1.148     albertel  641: 	    $added_computer_text=1;
1.165     albertel  642: 	    unless ($env{'course.'.
                    643: 			     $env{'request.course.id'}.
1.135     albertel  644: 			     '.disable_receipt_display'} eq 'yes') { 
                    645: 		$message.=(($target eq 'web')?'<br />':' ').
                    646: 		    'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
                    647: 		    (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
                    648: 	    }
                    649: 	    $bgcolor=$possiblecolors{'correct'};
                    650: 	    $button=0;
                    651: 	    $previousmsg='';
                    652: 	}
                    653:     } elsif ($award eq 'NO_RESPONSE') {
                    654: 	$message = '';
                    655: 	$bgcolor=$possiblecolors{'no_feedback'};
                    656: 	$button=1;
1.182     albertel  657:     } elsif ($award eq 'EXTRA_ANSWER') {
                    658: 	$message = &mt('Some extra items were submitted.');
                    659: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    660: 	$button = 1;
1.135     albertel  661:     } elsif ($award eq 'MISSING_ANSWER') {
                    662: 	$message = &mt('Some items were not submitted.');
                    663: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    664: 	$button = 1;
                    665:     } elsif ($award eq 'ERROR') {
                    666: 	$message = &mt('An error occured while grading your answer.');
                    667: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    668: 	$button = 1;
                    669:     } elsif ($award eq 'TOO_LONG') {
                    670: 	$message = &mt("The submitted answer was too long.");
                    671: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    672: 	$button=1;
                    673:     } elsif ($award eq 'WANTED_NUMERIC') {
                    674: 	$message = &mt("This question expects a numeric answer.");
                    675: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    676: 	$button=1;
                    677:     } elsif ($award eq 'MISORDERED_RANK') {
                    678: 	$message = &mt('You have provided an invalid ranking');
                    679: 	if ($target ne 'tex') {
1.159     albertel  680: 	    $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
1.135     albertel  681: 	}
                    682: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    683: 	$button=1;
                    684:     } elsif ($award eq 'INVALID_FILETYPE') {
1.166     albertel  685: 	$message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
1.135     albertel  686: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    687: 	$button=1;
                    688:     } elsif ($award eq 'SIG_FAIL') {
1.145     albertel  689: 	my ($used,$min,$max)=split(':',$awardmsg);
                    690: 	my $word;
                    691: 	if ($used < $min) { $word=&mt('more'); }
                    692: 	if ($used > $max) { $word=&mt('fewer'); }
                    693: 	$message = &mt("Submission not graded.  Use [_2] digits.",$used,$word);
1.135     albertel  694: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    695: 	$button=1;
1.137     albertel  696:     } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
                    697: 	$message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
                    698: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
                    699: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    700: 	$button=1;
                    701:     } elsif ($award eq 'UNIT_INVALID_STUDENT') {
1.155     albertel  702: 	$message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
1.137     albertel  703: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
                    704: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    705: 	$button=1;
1.140     matthew   706:     } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
1.155     albertel  707: 	$message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
1.136     albertel  708: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
1.135     albertel  709: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    710: 	$button=1;
                    711:     } elsif ($award eq 'UNIT_NOTNEEDED') {
1.155     albertel  712: 	$message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
1.135     albertel  713: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    714: 	$button=1;
                    715:     } elsif ($award eq 'NO_UNIT') {
1.144     albertel  716: 	$message = &mt("Units required").'.';
1.135     albertel  717: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
                    718: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    719: 	$button=1;
1.153     albertel  720:     } elsif ($award eq 'COMMA_FAIL') {
                    721: 	$message = &mt("Proper comma separation is required").'.';
                    722: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    723: 	$button=1;
1.135     albertel  724:     } elsif ($award eq 'BAD_FORMULA') {
                    725: 	$message = &mt("Unable to understand formula");
                    726: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    727: 	$button=1;
                    728:     } elsif ($award eq 'INCORRECT') {
1.144     albertel  729: 	$message = &mt("Incorrect").'.';
1.135     albertel  730: 	$bgcolor=$possiblecolors{'charged_try'};
                    731: 	$button=1;
                    732:     } elsif ($award eq 'SUBMITTED') {
                    733: 	$message = &mt("Your submission has been recorded.");
1.201     albertel  734: 	$bgcolor=$possiblecolors{'no_grade'};
1.135     albertel  735: 	$button=1;
                    736:     } elsif ($award eq 'DRAFT') {
1.144     albertel  737: 	$message = &mt("A draft copy has been saved.");
1.135     albertel  738: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    739: 	$button=1;
                    740:     } elsif ($award eq 'ASSIGNED_SCORE') {
1.144     albertel  741: 	$message = &mt("A score has been assigned.");
1.135     albertel  742: 	$bgcolor=$possiblecolors{'correct'};
                    743: 	$button=0;
1.144     albertel  744:     } elsif ($award eq '') {
1.186     albertel  745: 	if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
                    746: 	    $message = &mt("Nothing submitted.");
                    747: 	    $bgcolor=$possiblecolors{'charged_try'};
                    748: 	} else {
                    749: 	    $bgcolor=$possiblecolors{'not_charged_try'};
                    750: 	}
1.144     albertel  751: 	$button=1;
1.135     albertel  752:     } else {
                    753: 	$message = &mt("Unknown message").": $award";
                    754: 	$button=1;
                    755:     }
1.194     banghart  756:     my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
                    757:     foreach my $resid(@Apache::inputtags::response){
                    758:         if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
1.198     albertel  759: 	    $message.='<br />';
                    760: 	    my @files = split(/\s*,\s*/,
                    761: 			      $Apache::lonhomework::history{"resource.$part.$resid.handback"});
                    762: 	    my $file_msg;
                    763: 	    foreach my $file (@files) {
                    764: 		$file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
                    765: 	    }
                    766: 	    $message .= &mt('Returned file(s): [_1]',$file_msg);
                    767: 	}
1.194     banghart  768:     }
                    769: 
1.135     albertel  770:     if (lc($Apache::lonhomework::problemstatus) eq 'no'  && 
                    771: 	$Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
                    772: 	$message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
1.201     albertel  773: 	$bgcolor=$possiblecolors{'no_grade'};
1.135     albertel  774: 	$button=1;
                    775:     }
1.148     albertel  776:     if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' && 
1.150     albertel  777: 	!$added_computer_text && $target ne 'tex') {
1.180     albertel  778: 	$message.= $computer;
1.148     albertel  779: 	$added_computer_text=1;
1.144     albertel  780:     }
1.135     albertel  781:     return ($button,$bgcolor,$message,$previousmsg);
1.12      albertel  782: }
                    783: 
1.155     albertel  784: sub markup_unit {
                    785:     my ($unit,$target)=@_;
                    786:     if ($target eq 'tex') {
                    787: 	return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}'; 
                    788:     } else {
                    789: 	return "<tt>".$unit."</tt>";
                    790:     }
                    791: }
                    792: 
1.88      albertel  793: sub removealldata {
1.87      albertel  794:     my ($id)=@_;
                    795:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    796: 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
                    797: 	    &Apache::lonxml::debug("Removing $key");
                    798: 	    delete($Apache::lonhomework::results{$key});
                    799: 	}
                    800:     }
                    801: }
                    802: 
1.142     albertel  803: sub hidealldata {
                    804:     my ($id)=@_;
                    805:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    806: 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
                    807: 	    &Apache::lonxml::debug("Hidding $key");
                    808: 	    my $newkey=$key;
                    809: 	    $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
                    810: 	    $Apache::lonhomework::results{$newkey}=
                    811: 		$Apache::lonhomework::results{$key};
                    812: 	    delete($Apache::lonhomework::results{$key});
                    813: 	}
                    814:     }
                    815: }
                    816: 
1.12      albertel  817: sub setgradedata {
1.136     albertel  818:     my ($award,$msg,$id,$previously_used) = @_;
1.154     albertel  819:     if ($Apache::lonhomework::scantronmode && 
1.165     albertel  820: 	&Apache::lonnet::validCODE($env{'form.CODE'})) {
                    821: 	$Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
1.154     albertel  822:     } elsif ($Apache::lonhomework::scantronmode && 
1.165     albertel  823: 	     $env{'form.CODE'} eq '' &&
1.154     albertel  824: 	     $Apache::lonhomework::history{"resource.CODE"} ne '') {
                    825: 	$Apache::lonhomework::results{"resource.CODE"}='';
1.141     albertel  826:     }
1.154     albertel  827: 
1.135     albertel  828:     if (!$Apache::lonhomework::scantronmode &&
                    829: 	$Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
                    830: 	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
                    831: 	$Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
1.87      albertel  832: 	return '';
1.135     albertel  833:     } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
                    834: 	      /^correct/ || $Apache::lonhomework::scantronmode ||
                    835: 	      lc($Apache::lonhomework::problemstatus) eq 'no') {
1.154     albertel  836:         # the student doesn't already have it correct,
                    837: 	# or we are in a mode (scantron orno problem status) where a correct 
                    838:         # can become incorrect
                    839: 	# handle assignment of tries and solved status
1.135     albertel  840: 	my $solvemsg;
                    841: 	if ($Apache::lonhomework::scantronmode) {
                    842: 	    $solvemsg='correct_by_scantron';
                    843: 	} else {
                    844: 	    $solvemsg='correct_by_student';
                    845: 	}
                    846: 	if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
                    847: 	    $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
                    848: 	}
                    849: 	if ( $award eq 'ASSIGNED_SCORE') {
                    850: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    851: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    852: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    853: 		$solvemsg;
                    854: 	    my $numawards=scalar(@Apache::inputtags::response);
                    855: 	    $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                    856: 	    foreach my $res (@Apache::inputtags::response) {
                    857: 		$Apache::lonhomework::results{"resource.$id.awarded"}+=
                    858: 		    $Apache::lonhomework::results{"resource.$id.$res.awarded"};
                    859: 	    }
                    860: 	    if ($numawards > 0) {
                    861: 		$Apache::lonhomework::results{"resource.$id.awarded"}/=
                    862: 		    $numawards;
                    863: 	    }
                    864: 	} elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
                    865: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    866: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    867: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    868: 		$solvemsg;
                    869: 	    $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
                    870: 	} elsif ( $award eq 'INCORRECT' ) {
                    871: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    872: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
1.152     albertel  873: 	    if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
                    874: 		$Apache::lonhomework::scantronmode) {
1.135     albertel  875: 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                    876: 	    }
                    877: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    878: 		'incorrect_attempted';
                    879: 	} elsif ( $award eq 'SUBMITTED' ) {
                    880: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    881: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    882: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    883: 		'ungraded_attempted';
                    884: 	} elsif ( $award eq 'DRAFT' ) {
                    885: 	    $Apache::lonhomework::results{"resource.$id.solved"} = '';
                    886: 	} elsif ( $award eq 'NO_RESPONSE' ) {
                    887: 	    #no real response so delete any data that got stored
1.129     albertel  888: 	    &removealldata($id);
                    889: 	    return '';
                    890: 	} else {
1.135     albertel  891: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    892: 		'incorrect_attempted';
1.152     albertel  893: 	    if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
                    894: 		$Apache::lonhomework::scantronmode) {
1.135     albertel  895: 		$Apache::lonhomework::results{"resource.$id.tries"} =
                    896: 		    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    897: 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                    898: 	    }
                    899: 	}
1.136     albertel  900: 	if (defined($msg)) {
                    901: 	    $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
                    902: 	}
1.135     albertel  903: 	# did either of the overall awards chage? If so ignore the 
                    904: 	# previous check
                    905: 	if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
                    906: 	     $Apache::lonhomework::history{"resource.$id.awarded"}) &&
                    907: 	    ($Apache::lonhomework::results{"resource.$id.solved"} eq
                    908: 	     $Apache::lonhomework::history{"resource.$id.solved"})) {
                    909: 	    # check if this was a previous submission if it was delete the
                    910: 	    # unneeded data and update the previously_used attribute
                    911: 	    if ( $previously_used eq 'PREVIOUSLY_USED') {
                    912: 		if (lc($Apache::lonhomework::problemstatus) ne 'no') {
                    913: 		    delete($Apache::lonhomework::results{"resource.$id.tries"});
                    914: 		    $Apache::lonhomework::results{"resource.$id.previous"} = '1';
                    915: 		}
                    916: 	    } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
                    917: 		#delete all data as they student didn't do anything, but save
                    918: 		#the list of collaborators.
                    919: 		&removealldata($id);
                    920: 		#and since they didn't do anything we were never here
                    921: 		return '';
                    922: 	    } else {
                    923: 		$Apache::lonhomework::results{"resource.$id.previous"} = '0';
                    924: 	    }
1.101     albertel  925: 	}
1.135     albertel  926:     } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
                    927: 	      /^correct/ ) {
                    928: 	#delete all data as they student already has it correct
                    929: 	&removealldata($id);
                    930: 	#and since they didn't do anything we were never here
                    931: 	return '';
1.40      albertel  932:     }
1.135     albertel  933:     $Apache::lonhomework::results{"resource.$id.award"} = $award;
1.184     albertel  934:     if ($award eq 'SUBMITTED') {
                    935: 	&Apache::response::add_to_gradingqueue();
                    936:     }
1.10      albertel  937: }
                    938: 
1.9       albertel  939: sub grade {
1.135     albertel  940:     my ($target) = @_;
                    941:     my $id = $Apache::inputtags::part;
                    942:     my $response='';
1.165     albertel  943:     if ( defined $env{'form.submitted'}) {
1.136     albertel  944: 	my (@awards,@msgs);
1.135     albertel  945: 	foreach $response (@Apache::inputtags::response) {
                    946: 	    &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
                    947: 	    my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
                    948: 	    &Apache::lonxml::debug("keeping $value from $response for $id");
                    949: 	    push (@awards,$value);
1.136     albertel  950: 	    $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
                    951: 	    &Apache::lonxml::debug("got message $value from $response for $id");
                    952: 	    push (@msgs,$value);
1.135     albertel  953: 	}
1.136     albertel  954: 	my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
1.135     albertel  955: 	my $previously_used;
                    956: 	if ( $#Apache::inputtags::previous eq $#awards ) {
                    957: 	    my $match=0;
                    958: 	    my @matches;
                    959: 	    foreach my $versionar (@Apache::inputtags::previous_version) {
                    960: 		foreach my $version (@$versionar) {
                    961: 		    $matches[$version]++;
                    962: 		}
                    963: 	    }
                    964: 	    foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
                    965: 	    if ($match) {
                    966: 		$previously_used = 'PREVIOUSLY_LAST';
                    967: 		foreach my $value (@Apache::inputtags::previous) {
                    968: 		    if ($value eq 'PREVIOUSLY_USED' ) {
                    969: 			$previously_used = $value;
                    970: 			last;
                    971: 		    }
1.75      albertel  972: 		}
                    973: 	    }
1.43      albertel  974: 	}
1.136     albertel  975: 	&Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
                    976: 	&setgradedata($finalaward,$msg,$id,$previously_used);
1.43      albertel  977:     }
1.135     albertel  978:     return '';
1.1       albertel  979: }
                    980: 
1.11      albertel  981: sub gradestatus {
1.135     albertel  982:     my ($id,$target) = @_;
                    983:     my $showbutton = 1;
                    984:     my $bgcolor = '';
                    985:     my $message = '';
                    986:     my $latemessage = '';
                    987:     my $trystr='';
                    988:     my $button='';
                    989:     my $previousmsg='';
                    990: 
                    991:     my $status = $Apache::inputtags::status['-1'];
                    992:     &Apache::lonxml::debug("gradestatus has :$status:");
1.183     albertel  993:     if ( $status ne 'CLOSED' 
                    994: 	 && $status ne 'UNAVAILABLE' 
                    995: 	 && $status ne 'INVALID_ACCESS' 
                    996: 	 && $status ne 'NEEDS_CHECKIN' 
                    997: 	 && $status ne 'NOT_IN_A_SLOT') {  
1.135     albertel  998: 	my $award = $Apache::lonhomework::history{"resource.$id.award"};
1.169     albertel  999: 	my $awarded = $Apache::lonhomework::history{"resource.$id.awarded"};
1.135     albertel 1000: 	my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
                   1001: 	my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
1.136     albertel 1002: 	my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
                   1003: 	&Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1.144     albertel 1004: 	if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1.135     albertel 1005: 	    &Apache::lonxml::debug('Getting message');
                   1006: 	    ($showbutton,$bgcolor,$message,$previousmsg) =
1.169     albertel 1007: 		&decideoutput($award,$awarded,$awardmsg,$solved,$previous,
                   1008: 			      $target);
1.135     albertel 1009: 	    if ($target eq 'tex') {
                   1010: 		$message='\vskip 2 mm '.$message.' ';
                   1011: 	    } else {
                   1012: 		$message="<td bgcolor=\"$bgcolor\">$message</td>";
                   1013: 		if ($previousmsg) {
                   1014: 		    $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
                   1015: 		}
                   1016: 	    }
                   1017: 	}
                   1018: 	my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
                   1019: 	my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
                   1020: 	&Apache::lonxml::debug("got maxtries of :$maxtries:");
                   1021: 	#if tries are set to negative turn off the Tries/Button and messages
                   1022: 	if (defined($maxtries) && $maxtries < 0) { return ''; }
                   1023: 	if ( $tries eq '' ) { $tries = '0'; }
                   1024: 	if ( $maxtries eq '' ) { $maxtries = '2'; } 
                   1025: 	if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
                   1026: 	my $tries_text=&mt('Tries');
1.164     albertel 1027: 	if ( $Apache::lonhomework::type eq 'survey' ||
                   1028: 	     $Apache::lonhomework::parsing_a_task) {
                   1029: 	    $tries_text=&mt('Submissions');
                   1030: 	}
1.135     albertel 1031: 	if ( $showbutton ) {
                   1032: 	    if ($target eq 'tex') {
1.165     albertel 1033: 		if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
1.135     albertel 1034: 		    $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
                   1035: 		} else {
                   1036: 		    $trystr = '\vskip 0 mm ';
                   1037: 		}
                   1038: 	    } else {
1.136     albertel 1039: 		$trystr = "<td><nobr>".$tries_text." $tries";
1.164     albertel 1040: 		if ($Apache::lonhomework::parsing_a_task) {
1.165     albertel 1041: 		} elsif($env{'request.state'} ne 'construct') {
1.135     albertel 1042: 		    $trystr.="/$maxtries";
                   1043: 		} else {
                   1044: 		    if (defined($Apache::inputtags::params{'maxtries'})) {
                   1045: 			$trystr.="/".$Apache::inputtags::params{'maxtries'};
                   1046: 		    }
                   1047: 		}
1.136     albertel 1048: 		$trystr.="</nobr></td>";
1.135     albertel 1049: 	    }
                   1050: 	}
                   1051: 	if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
                   1052: 	if ( $showbutton ) { 
                   1053: 	    if ($target ne 'tex') {
1.156     albertel 1054: 		$button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
1.135     albertel 1055: 	    }
                   1056: 	}
                   1057: 	if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
                   1058: 	    #last submissions was after due date
1.163     albertel 1059: 	    $latemessage=&mt(' The last submission was after the Due Date ');;
                   1060: 	    if ($target eq 'web') {
                   1061: 		$latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
1.135     albertel 1062: 	    }
                   1063: 	}
                   1064:     }
                   1065:     my $output= $previousmsg.$latemessage.$message.$trystr;
                   1066:     if ($output =~ /^\s*$/) {
                   1067: 	return $button;
1.63      sakharuk 1068:     } else {
1.135     albertel 1069: 	if ($target eq 'tex') {
                   1070: 	    return $button.' \vskip 0 mm '.$output.' ';
                   1071: 	} else {
                   1072: 	    return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
                   1073: 	}
1.63      sakharuk 1074:     }
1.11      albertel 1075: }
1.1       albertel 1076: 1;
                   1077: __END__
1.43      albertel 1078:  

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