Annotation of loncom/homework/inputtags.pm, revision 1.167

1.43      albertel    1: # The LearningOnline Network with CAPA
                      2: # input  definitons
1.47      albertel    3: #
1.167   ! albertel    4: # $Id: inputtags.pm,v 1.166 2005/04/08 19:39:32 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;
1.1       albertel   34: 
1.50      harris41   35: BEGIN {
1.135     albertel   36:     &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
1.1       albertel   37: }
                     38: 
1.43      albertel   39: 
1.1       albertel   40: sub initialize_inputtags {
1.135     albertel   41:     # list of current input ids
                     42:     @Apache::inputtags::input=();
                     43:     # list of all input ids seen in this problem
                     44:     @Apache::inputtags::inputlist=();
                     45:     # list of all current response ids
                     46:     @Apache::inputtags::response=();
                     47:     # list of all response ids seen in this problem
                     48:     @Apache::inputtags::responselist=();
                     49:     # list of whether or not a specific response was previously used
                     50:     @Apache::inputtags::previous=();
                     51:     # submission it was used in
                     52:     @Apache::inputtags::previous_version=();
                     53:     # id of current part, 0 means that no part is current 
                     54:     # (inside <problem> only
                     55:     $Apache::inputtags::part='';
                     56:     # list of all part ids seen
                     57:     @Apache::inputtags::partlist=();
                     58:     # list of problem date statuses, the first element is for <problem>
                     59:     # if there is a second element it is for the current <part>
                     60:     @Apache::inputtags::status=();
                     61:     # hash of defined params for the current response
                     62:     %Apache::inputtags::params=();
                     63:     # list of all ids, for <import>, these get join()ed and prepended
                     64:     @Apache::inputtags::import=();
                     65:     # list of all import ids seen
                     66:     @Apache::inputtags::importlist=();
                     67:     # just used to note whether we have seen a response that isn't in a part
                     68:     $Apache::inputtags::response_with_no_part=0;
1.144     albertel   69:     # storage location so the begin <*response> tag can generate the correct
                     70:     # answer string for display by the <textline />
                     71:     %Apache::inputtags::answertxt=();
1.103     albertel   72: }
                     73: 
                     74: sub check_for_duplicate_ids {
                     75:     my %check;
                     76:     foreach my $id (@Apache::inputtags::partlist,
                     77: 		    @Apache::inputtags::responselist,
                     78: 		    @Apache::inputtags::importlist) {
                     79: 	$check{$id}++;
                     80:     }
                     81:     my @duplicates;
                     82:     foreach my $id (sort(keys(%check))) {
                     83: 	if ($check{$id} > 1) {
                     84: 	    push(@duplicates,$id);
                     85: 	}
                     86:     }
                     87:     if (@duplicates) {
                     88: 	&Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
                     89:     }
1.1       albertel   90: }
                     91: 
1.14      albertel   92: sub start_input {
1.135     albertel   93:     my ($parstack,$safeeval)=@_;
                     94:     my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
                     95:     if ($id eq '') { $id = $Apache::lonxml::curdepth; }
                     96:     push (@Apache::inputtags::input,$id);
                     97:     push (@Apache::inputtags::inputlist,$id);
                     98:     return $id;
1.14      albertel   99: }
                    100: 
                    101: sub end_input {
1.135     albertel  102:     pop @Apache::inputtags::input;
                    103:     return '';
1.14      albertel  104: }
                    105: 
1.124     www       106: sub addchars {
                    107:     my ($fieldid,$addchars)=@_;
                    108:     my $output='';
                    109:     foreach (split(/\,/,$addchars)) {
                    110: 	$output.='<a href="javascript:void(document.forms.lonhomework.'.
                    111: 	    $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
                    112:     }
                    113:     return $output;
                    114: }
                    115: 
1.48      albertel  116: sub start_textfield {
1.135     albertel  117:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    118:     my $result = "";
                    119:     my $id = &start_input($parstack,$safeeval);
                    120:     my $resid=$Apache::inputtags::response[-1];
                    121:     if ($target eq 'web') {
                    122: 	$Apache::lonxml::evaluate--;
                    123: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    124: 	    my $partid=$Apache::inputtags::part;
1.138     albertel  125: 	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
1.135     albertel  126: 	    my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
                    127: 	    if ( $cols eq '') { $cols = 80; }
                    128: 	    my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
1.143     www       129: 	    if ( $rows eq '') { $rows = 16; }
1.135     albertel  130: 	    my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
                    131: 	    $result='';
                    132: 	    if ($addchars) {
                    133: 		$result.=&addchars('HWVAL_'.$resid,$addchars);
                    134: 	    }
1.143     www       135: 	    push @Apache::lonxml::htmlareafields,'HWVAL_'.$resid;
                    136: 	    $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
1.135     albertel  137: 		"rows=\"$rows\" cols=\"$cols\">".$oldresponse;
                    138: 	    if ($oldresponse ne '') {
1.143     www       139: 
1.135     albertel  140: 		#get rid of any startup text if the user has already responded
                    141: 		&Apache::lonxml::get_all_text("/textfield",$parser);
                    142: 	    }
                    143: 	} else {
                    144: 	    #right or wrong don't show it
                    145: 	    #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
                    146: 	    $result='';
                    147: 	    #get rid of any startup text
1.84      albertel  148: 	    &Apache::lonxml::get_all_text("/textfield",$parser);
1.61      albertel  149: 	}
1.135     albertel  150:     } elsif ($target eq 'grade') {
                    151: 	my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
1.165     albertel  152: 	if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
1.135     albertel  153: 	    # if the seed text is still there it wasn't a real submission
1.165     albertel  154: 	    $env{'form.HWVAL_'.$resid}='';
1.135     albertel  155: 	}
                    156:     } elsif ($target eq 'edit') {
                    157: 	$result.=&Apache::edit::tag_start($target,$token);
                    158: 	$result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
                    159: 	$result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
                    160: 	$result.=&Apache::edit::text_arg
                    161: 	    ('Click-On Texts (comma sep):','addchars',$token,10);
                    162: 	my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
                    163: 	$result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
                    164:     } elsif ($target eq 'modified') {
                    165: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    166: 						     $safeeval,'rows','cols',
                    167: 						     'addchars');
                    168: 	if ($constructtag) {
                    169: 	    $result = &Apache::edit::rebuild_tag($token);
                    170: 	} else {
                    171: 	    $result=$token->[4];
                    172: 	}
                    173: 	$result.=&Apache::edit::modifiedfield("/textfield",$parser);
                    174:     } elsif ($target eq 'tex') {
                    175: 	my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
                    176: 	my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
                    177: 	if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
                    178: 	    $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
                    179: 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
                    180: 	    $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
                    181: 	} else {
                    182: 	    my $TeXwidth=$width_of_box/80;
                    183: 	    $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
                    184: 	    for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
                    185: 	    $result.='}}}\vskip 2 mm ';
                    186: 	}
1.60      albertel  187:     }
1.135     albertel  188:     return $result;
1.6       albertel  189: }
                    190: 
1.48      albertel  191: sub end_textfield {
1.135     albertel  192:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    193:     my $result;
                    194:     if ($target eq 'web') {
                    195: 	$Apache::lonxml::evaluate++;
                    196: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    197: 	    return "</textarea>";
                    198: 	}
                    199:     } elsif ($target eq 'edit') {
                    200: 	$result=&Apache::edit::end_table();
                    201:     }
                    202:     &end_input;
                    203:     return $result;
1.6       albertel  204: }
                    205: 
1.1       albertel  206: sub start_textline {
1.135     albertel  207:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    208:     my $result = "";
                    209:     if ($target eq 'web') {
                    210: 	$Apache::lonxml::evaluate--;
                    211: 	my $partid=$Apache::inputtags::part;
                    212: 	my $id=$Apache::inputtags::response[-1];
                    213: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    214: 	    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
                    215: 	    my $maxlength;
                    216: 	    if ($size eq '') { $size=20; } else {
                    217: 		if ($size < 20) { $maxlength=$size; }
                    218: 	    }
1.138     albertel  219: 	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
1.135     albertel  220: 	    if ($Apache::lonhomework::type ne 'exam') {
                    221: 		my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
                    222: 		$result='';
                    223: 		if ($addchars) {
                    224: 		    $result.=&addchars('HWVAL_'.$id,$addchars);
                    225: 		}
1.157     albertel  226: 		my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
                    227: 							$safeeval);
                    228: 		if (lc($readonly) eq 'yes') {
                    229: 		    $readonly=' readonly="readonly" ';
1.158     albertel  230: 		} else {
                    231: 		    $readonly='';
1.157     albertel  232: 		}
                    233: 		$result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
1.135     albertel  234: 		    $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
                    235: 	    }
                    236: 	} else {
                    237: 	    #right or wrong don't show what was last typed in.
1.144     albertel  238: 	    $result='<i>'.$Apache::inputtags::answertxt{$id}.'</i>';
                    239: 	    #$result='';
1.135     albertel  240: 	}
                    241:     } elsif ($target eq 'edit') {
                    242: 	$result=&Apache::edit::tag_start($target,$token);
                    243: 	$result.=&Apache::edit::text_arg('Size:','size',$token,'5').
1.157     albertel  244: 	    &Apache::edit::text_arg('Click-On Texts (comma sep):',
                    245: 				    'addchars',$token,10);
                    246:         $result.=&Apache::edit::select_arg('Readonly:','readonly',
                    247: 					   ['no','yes'],$token);
                    248: 	$result.=&Apache::edit::end_row();
                    249: 	$result.=&Apache::edit::end_table();
1.135     albertel  250:     } elsif ($target eq 'modified') {
1.157     albertel  251: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    252: 						     $safeeval,'size',
                    253: 						     'addchars','readonly');
1.135     albertel  254: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    255:     } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
                    256: 	my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
                    257: 	if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
                    258: 	$result='\framebox['.$size.'][s]{\tiny\strut}';
                    259:     }
                    260:     return $result;
1.1       albertel  261: }
                    262: 
                    263: sub end_textline {
1.135     albertel  264:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    265:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    266:     elsif ($target eq 'edit') { return ('','no'); }
                    267:     return "";
1.9       albertel  268: }
                    269: 
1.98      albertel  270: sub start_hiddenline {
                    271:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    272:     my $result = "";
                    273:     if ($target eq 'web') {
                    274: 	$Apache::lonxml::evaluate--;
                    275: 	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                    276: 	    my $partid=$Apache::inputtags::part;
                    277: 	    my $id=$Apache::inputtags::response[-1];
1.138     albertel  278: 	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
1.98      albertel  279: 	    if ($Apache::lonhomework::type ne 'exam') {
                    280: 		$result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
                    281: 		    $oldresponse.'" />';
                    282: 	    }
                    283: 	}
                    284:     } elsif ($target eq 'edit') {
                    285: 	$result=&Apache::edit::tag_start($target,$token);
                    286: 	$result.=&Apache::edit::end_table;
                    287:     }
                    288:     return $result;
                    289: }
                    290: 
                    291: sub end_hiddenline {
1.135     albertel  292:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    293:     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
                    294:     elsif ($target eq 'edit') { return ('','no'); }
                    295:     return "";
1.98      albertel  296: }
                    297: 
1.160     albertel  298: # $part -> partid
                    299: # $id -> responseid
                    300: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
                    301: # $which -> 'uploadedonly'  -> only newly uploaded files
                    302: #           'portfolioonly' -> only allow files from portfolio
                    303: #           'both' -> allow files from either location
                    304: # returns a table row <tr> 
                    305: sub file_selector {
                    306:     my ($part,$id,$uploadedfiletypes,$which)=@_;
                    307:     if (!$uploadedfiletypes) { return ''; }
1.167   ! albertel  308: 
        !           309:     my $jspart=$part;
        !           310:     $jspart=~s/\./_/g;
        !           311: 
1.160     albertel  312:     my $result;
                    313:     
1.162     albertel  314:     $result.='<tr><td>';
                    315:     if ($uploadedfiletypes ne '*') {
                    316: 	$result.=
                    317: 	    &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
                    318:     }
1.160     albertel  319:     if ($which eq 'uploadonly' || $which eq 'both') { 
                    320: 	$result.=&mt('Submit a file: (only one file can be uploaded)').
                    321: 	    ' <br /><input type="file" size="50" name="HWFILE'.
1.167   ! albertel  322: 	    $jspart.'_'.$id.'" /><br />';
1.160     albertel  323: 	my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
                    324: 
                    325: 	if ($uploadedfile) {
                    326: 	    my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
                    327: 	    push (@Apache::lonxml::extlinks,$url);
                    328: 	    &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
                    329: 	    my $icon=&Apache::loncommon::icon($url);
                    330: 	    my $curfile='<a href="'.$url.'"><img src="'.$icon.
                    331: 		'" border="0" />'.$uploadedfile.'</a>';
                    332: 	    $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
                    333: 	} else {
                    334: 	    #$result.=&mt('(Hand in a file you have prepared on your computer)');
                    335: 	}
                    336:     }
                    337:     if ( $which eq 'both') { 
                    338: 	$result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
                    339:     }
                    340:     if ($which eq 'portfolioonly' || $which eq 'both') { 
1.167   ! albertel  341: 	$result.='<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  342: 	    &mt('Select Portfolio Files').'</a><br />'.
1.167   ! albertel  343: 	    '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
1.160     albertel  344: 	    '<br />';
                    345: 	if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
1.161     albertel  346: 	    my @filelist;
1.160     albertel  347: 	    foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
                    348: 		my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
                    349: 		my $url="/uploaded/$domain/$user/portfolio$file";
                    350: 		my $icon=&Apache::loncommon::icon($url);
1.161     albertel  351: 		push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
                    352: 		     '" border="0" />'.$file.'</a>');
1.160     albertel  353: 	    }
1.161     albertel  354: 	    $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
1.160     albertel  355: 	}
                    356:     }
                    357:     $result.='</td></tr>'; 
                    358:     return $result;
                    359: }
                    360: 
1.136     albertel  361: sub checkstatus {
                    362:     my ($value,$awardref,$msgref)=@_;
                    363:     for (my $i=0;$i<=$#$awardref;$i++) {
                    364: 	if ($$awardref[$i] eq $value) {
                    365: 	    return ($$awardref[$i],$$msgref[$i]);
                    366: 	}
                    367:     }
                    368:     return(undef,undef);
                    369: }
                    370: 
1.9       albertel  371: sub finalizeawards {
1.136     albertel  372:     my ($awardref,$msgref)=@_;
                    373:     my $result=undef;
1.135     albertel  374:     my $award;
1.136     albertel  375:     my $msg;
                    376:     if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
1.135     albertel  377:     if ($result eq '' ) {
                    378: 	my $blankcount;
1.136     albertel  379: 	foreach $award (@$awardref) {
1.135     albertel  380: 	    if ($award eq '') {
                    381: 		$result='MISSING_ANSWER';
                    382: 		$blankcount++;
                    383: 	    }
                    384: 	}
1.136     albertel  385: 	if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
1.135     albertel  386:     }
1.136     albertel  387:     if (defined($result)) { return ($result,$msg); }
                    388:     foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
1.137     albertel  389: 			       'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
                    390: 			       'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
                    391: 			       'UNIT_FAIL', 'NO_UNIT',
1.136     albertel  392: 			       'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
                    393: 			       'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT', 
                    394: 			       'MISORDERED_RANK', 'INVALID_FILETYPE',
                    395: 			       'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
1.153     albertel  396: 			       'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
1.136     albertel  397: 	($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
                    398: 	if (defined($result)) { return ($result,$msg); }
1.135     albertel  399:     }
1.136     albertel  400:     return ('ERROR',undef);
1.9       albertel  401: }
                    402: 
1.10      albertel  403: sub decideoutput {
1.136     albertel  404:     my ($award,$awardmsg,$solved,$previous,$target)=@_;
1.135     albertel  405:     my $message='';
                    406:     my $button=0;
                    407:     my $previousmsg;
                    408:     my $bgcolor='orange';
1.148     albertel  409:     my $added_computer_text=0;
1.135     albertel  410:     my %possiblecolors =
                    411: 	( 'correct' => '#aaffaa',
                    412: 	  'charged_try' => '#ffaaaa',
                    413: 	  'not_charged_try' => '#ffffaa',
                    414: 	  'no_message' => '#fffff',
                    415: 	  );
                    416:     if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
                    417:     
                    418:     if      ($solved =~ /^correct/) {
                    419: 	if ($award eq 'ASSIGNED_SCORE') {
                    420: 	    $message = &mt("A score has been assigned.");
                    421: 	} else {
                    422: 	    if ($target eq 'tex') {
                    423: 		$message = '\textbf{'.&mt('You are correct.').'}';
                    424: 	    } else {
                    425: 		$message = "<b>".&mt('You are correct.')."</b>";
1.150     albertel  426: 		$message.=" ".&mt("Computer's answer now shown above.");
1.135     albertel  427: 	    }
1.148     albertel  428: 	    $added_computer_text=1;
1.165     albertel  429: 	    unless ($env{'course.'.
                    430: 			     $env{'request.course.id'}.
1.135     albertel  431: 			     '.disable_receipt_display'} eq 'yes') { 
                    432: 		$message.=(($target eq 'web')?'<br />':' ').
                    433: 		    &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
                    434: 		    (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
                    435: 	    }
                    436: 	}
                    437: 	$bgcolor=$possiblecolors{'correct'};
                    438: 	$button=0;
                    439: 	$previousmsg='';
                    440:     } elsif ($solved =~ /^excused/) {
                    441: 	if ($target eq 'tex') {
                    442: 	    $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
                    443: 	} else {
                    444: 	    $message = "<b>".&mt('You are excused from the problem.')."</b>";
                    445: 	}
                    446: 	$bgcolor=$possiblecolors{'charged_try'};
                    447: 	$button=0;
                    448: 	$previousmsg='';
                    449:     } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
                    450: 	if ($solved =~ /^incorrect/ || $solved eq '') {
1.144     albertel  451: 	    $message = &mt("Incorrect").".";
1.135     albertel  452: 	    $bgcolor=$possiblecolors{'charged_try'};
                    453: 	    $button=1;
                    454: 	} else {
1.144     albertel  455: 	    if ($target eq 'tex') {
                    456: 		$message = '\textbf{'.&mt('You are correct.').'}';
                    457: 	    } else {
                    458: 		$message = "<b>".&mt('You are correct.')."</b>";
1.150     albertel  459: 		$message.=" ".&mt("Computer's answer now shown above.");
1.144     albertel  460: 	    }
1.148     albertel  461: 	    $added_computer_text=1;
1.165     albertel  462: 	    unless ($env{'course.'.
                    463: 			     $env{'request.course.id'}.
1.135     albertel  464: 			     '.disable_receipt_display'} eq 'yes') { 
                    465: 		$message.=(($target eq 'web')?'<br />':' ').
                    466: 		    'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
                    467: 		    (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
                    468: 	    }
                    469: 	    $bgcolor=$possiblecolors{'correct'};
                    470: 	    $button=0;
                    471: 	    $previousmsg='';
                    472: 	}
                    473:     } elsif ($award eq 'NO_RESPONSE') {
                    474: 	$message = '';
                    475: 	$bgcolor=$possiblecolors{'no_feedback'};
                    476: 	$button=1;
                    477:     } elsif ($award eq 'MISSING_ANSWER') {
                    478: 	$message = &mt('Some items were not submitted.');
                    479: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    480: 	$button = 1;
                    481:     } elsif ($award eq 'ERROR') {
                    482: 	$message = &mt('An error occured while grading your answer.');
                    483: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    484: 	$button = 1;
                    485:     } elsif ($award eq 'TOO_LONG') {
                    486: 	$message = &mt("The submitted answer was too long.");
                    487: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    488: 	$button=1;
                    489:     } elsif ($award eq 'WANTED_NUMERIC') {
                    490: 	$message = &mt("This question expects a numeric answer.");
                    491: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    492: 	$button=1;
                    493:     } elsif ($award eq 'MISORDERED_RANK') {
                    494: 	$message = &mt('You have provided an invalid ranking');
                    495: 	if ($target ne 'tex') {
1.159     albertel  496: 	    $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
1.135     albertel  497: 	}
                    498: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    499: 	$button=1;
                    500:     } elsif ($award eq 'INVALID_FILETYPE') {
1.166     albertel  501: 	$message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
1.135     albertel  502: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    503: 	$button=1;
                    504:     } elsif ($award eq 'SIG_FAIL') {
1.145     albertel  505: 	my ($used,$min,$max)=split(':',$awardmsg);
                    506: 	my $word;
                    507: 	if ($used < $min) { $word=&mt('more'); }
                    508: 	if ($used > $max) { $word=&mt('fewer'); }
                    509: 	$message = &mt("Submission not graded.  Use [_2] digits.",$used,$word);
1.135     albertel  510: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    511: 	$button=1;
1.137     albertel  512:     } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
                    513: 	$message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
                    514: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
                    515: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    516: 	$button=1;
                    517:     } elsif ($award eq 'UNIT_INVALID_STUDENT') {
1.155     albertel  518: 	$message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
1.137     albertel  519: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
                    520: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    521: 	$button=1;
1.140     matthew   522:     } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
1.155     albertel  523: 	$message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
1.136     albertel  524: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
1.135     albertel  525: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    526: 	$button=1;
                    527:     } elsif ($award eq 'UNIT_NOTNEEDED') {
1.155     albertel  528: 	$message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
1.135     albertel  529: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    530: 	$button=1;
                    531:     } elsif ($award eq 'NO_UNIT') {
1.144     albertel  532: 	$message = &mt("Units required").'.';
1.135     albertel  533: 	if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
                    534: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    535: 	$button=1;
1.153     albertel  536:     } elsif ($award eq 'COMMA_FAIL') {
                    537: 	$message = &mt("Proper comma separation is required").'.';
                    538: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    539: 	$button=1;
1.135     albertel  540:     } elsif ($award eq 'BAD_FORMULA') {
                    541: 	$message = &mt("Unable to understand formula");
                    542: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    543: 	$button=1;
                    544:     } elsif ($award eq 'INCORRECT') {
1.144     albertel  545: 	$message = &mt("Incorrect").'.';
1.135     albertel  546: 	$bgcolor=$possiblecolors{'charged_try'};
                    547: 	$button=1;
                    548:     } elsif ($award eq 'SUBMITTED') {
                    549: 	$message = &mt("Your submission has been recorded.");
                    550: 	$bgcolor=$possiblecolors{'correct'};
                    551: 	$button=1;
                    552:     } elsif ($award eq 'DRAFT') {
1.144     albertel  553: 	$message = &mt("A draft copy has been saved.");
1.135     albertel  554: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    555: 	$button=1;
                    556:     } elsif ($award eq 'ASSIGNED_SCORE') {
1.144     albertel  557: 	$message = &mt("A score has been assigned.");
1.135     albertel  558: 	$bgcolor=$possiblecolors{'correct'};
                    559: 	$button=0;
1.144     albertel  560:     } elsif ($award eq '') {
                    561: 	$bgcolor=$possiblecolors{'not_charged_try'};
                    562: 	$button=1;
1.135     albertel  563:     } else {
                    564: 	$message = &mt("Unknown message").": $award";
                    565: 	$button=1;
                    566:     }
                    567:     if (lc($Apache::lonhomework::problemstatus) eq 'no'  && 
                    568: 	$Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
                    569: 	$message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
                    570: 	$bgcolor=$possiblecolors{'correct'};
                    571: 	$button=1;
                    572:     }
1.148     albertel  573:     if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' && 
1.150     albertel  574: 	!$added_computer_text && $target ne 'tex') {
1.149     albertel  575: 	$message.=" ".&mt("Computer's answer now shown above.");
1.148     albertel  576: 	$added_computer_text=1;
1.144     albertel  577:     }
1.135     albertel  578:     return ($button,$bgcolor,$message,$previousmsg);
1.12      albertel  579: }
                    580: 
1.155     albertel  581: sub markup_unit {
                    582:     my ($unit,$target)=@_;
                    583:     if ($target eq 'tex') {
                    584: 	return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}'; 
                    585:     } else {
                    586: 	return "<tt>".$unit."</tt>";
                    587:     }
                    588: }
                    589: 
1.88      albertel  590: sub removealldata {
1.87      albertel  591:     my ($id)=@_;
                    592:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    593: 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
                    594: 	    &Apache::lonxml::debug("Removing $key");
                    595: 	    delete($Apache::lonhomework::results{$key});
                    596: 	}
                    597:     }
                    598: }
                    599: 
1.142     albertel  600: sub hidealldata {
                    601:     my ($id)=@_;
                    602:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    603: 	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
                    604: 	    &Apache::lonxml::debug("Hidding $key");
                    605: 	    my $newkey=$key;
                    606: 	    $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
                    607: 	    $Apache::lonhomework::results{$newkey}=
                    608: 		$Apache::lonhomework::results{$key};
                    609: 	    delete($Apache::lonhomework::results{$key});
                    610: 	}
                    611:     }
                    612: }
                    613: 
1.12      albertel  614: sub setgradedata {
1.136     albertel  615:     my ($award,$msg,$id,$previously_used) = @_;
1.154     albertel  616:     if ($Apache::lonhomework::scantronmode && 
1.165     albertel  617: 	&Apache::lonnet::validCODE($env{'form.CODE'})) {
                    618: 	$Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
1.154     albertel  619:     } elsif ($Apache::lonhomework::scantronmode && 
1.165     albertel  620: 	     $env{'form.CODE'} eq '' &&
1.154     albertel  621: 	     $Apache::lonhomework::history{"resource.CODE"} ne '') {
                    622: 	$Apache::lonhomework::results{"resource.CODE"}='';
1.141     albertel  623:     }
1.154     albertel  624: 
1.135     albertel  625:     if (!$Apache::lonhomework::scantronmode &&
                    626: 	$Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
                    627: 	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
                    628: 	$Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
1.87      albertel  629: 	return '';
1.135     albertel  630:     } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
                    631: 	      /^correct/ || $Apache::lonhomework::scantronmode ||
                    632: 	      lc($Apache::lonhomework::problemstatus) eq 'no') {
1.154     albertel  633:         # the student doesn't already have it correct,
                    634: 	# or we are in a mode (scantron orno problem status) where a correct 
                    635:         # can become incorrect
                    636: 	# handle assignment of tries and solved status
1.135     albertel  637: 	my $solvemsg;
                    638: 	if ($Apache::lonhomework::scantronmode) {
                    639: 	    $solvemsg='correct_by_scantron';
                    640: 	} else {
                    641: 	    $solvemsg='correct_by_student';
                    642: 	}
                    643: 	if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
                    644: 	    $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
                    645: 	}
                    646: 	if ( $award eq 'ASSIGNED_SCORE') {
                    647: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    648: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    649: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    650: 		$solvemsg;
                    651: 	    my $numawards=scalar(@Apache::inputtags::response);
                    652: 	    $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                    653: 	    foreach my $res (@Apache::inputtags::response) {
                    654: 		$Apache::lonhomework::results{"resource.$id.awarded"}+=
                    655: 		    $Apache::lonhomework::results{"resource.$id.$res.awarded"};
                    656: 	    }
                    657: 	    if ($numawards > 0) {
                    658: 		$Apache::lonhomework::results{"resource.$id.awarded"}/=
                    659: 		    $numawards;
                    660: 	    }
                    661: 	} elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
                    662: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    663: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    664: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    665: 		$solvemsg;
                    666: 	    $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
                    667: 	} elsif ( $award eq 'INCORRECT' ) {
                    668: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    669: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
1.152     albertel  670: 	    if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
                    671: 		$Apache::lonhomework::scantronmode) {
1.135     albertel  672: 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                    673: 	    }
                    674: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    675: 		'incorrect_attempted';
                    676: 	} elsif ( $award eq 'SUBMITTED' ) {
                    677: 	    $Apache::lonhomework::results{"resource.$id.tries"} =
                    678: 		$Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    679: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    680: 		'ungraded_attempted';
                    681: 	} elsif ( $award eq 'DRAFT' ) {
                    682: 	    $Apache::lonhomework::results{"resource.$id.solved"} = '';
                    683: 	} elsif ( $award eq 'NO_RESPONSE' ) {
                    684: 	    #no real response so delete any data that got stored
1.129     albertel  685: 	    &removealldata($id);
                    686: 	    return '';
                    687: 	} else {
1.135     albertel  688: 	    $Apache::lonhomework::results{"resource.$id.solved"} =
                    689: 		'incorrect_attempted';
1.152     albertel  690: 	    if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
                    691: 		$Apache::lonhomework::scantronmode) {
1.135     albertel  692: 		$Apache::lonhomework::results{"resource.$id.tries"} =
                    693: 		    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
                    694: 		$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
                    695: 	    }
                    696: 	}
1.136     albertel  697: 	if (defined($msg)) {
                    698: 	    $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
                    699: 	}
1.135     albertel  700: 	# did either of the overall awards chage? If so ignore the 
                    701: 	# previous check
                    702: 	if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
                    703: 	     $Apache::lonhomework::history{"resource.$id.awarded"}) &&
                    704: 	    ($Apache::lonhomework::results{"resource.$id.solved"} eq
                    705: 	     $Apache::lonhomework::history{"resource.$id.solved"})) {
                    706: 	    # check if this was a previous submission if it was delete the
                    707: 	    # unneeded data and update the previously_used attribute
                    708: 	    if ( $previously_used eq 'PREVIOUSLY_USED') {
                    709: 		if (lc($Apache::lonhomework::problemstatus) ne 'no') {
                    710: 		    delete($Apache::lonhomework::results{"resource.$id.tries"});
                    711: 		    $Apache::lonhomework::results{"resource.$id.previous"} = '1';
                    712: 		}
                    713: 	    } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
                    714: 		#delete all data as they student didn't do anything, but save
                    715: 		#the list of collaborators.
                    716: 		&removealldata($id);
                    717: 		#and since they didn't do anything we were never here
                    718: 		return '';
                    719: 	    } else {
                    720: 		$Apache::lonhomework::results{"resource.$id.previous"} = '0';
                    721: 	    }
1.101     albertel  722: 	}
1.135     albertel  723:     } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
                    724: 	      /^correct/ ) {
                    725: 	#delete all data as they student already has it correct
                    726: 	&removealldata($id);
                    727: 	#and since they didn't do anything we were never here
                    728: 	return '';
1.40      albertel  729:     }
1.135     albertel  730:     $Apache::lonhomework::results{"resource.$id.award"} = $award;
1.10      albertel  731: }
                    732: 
1.9       albertel  733: sub grade {
1.135     albertel  734:     my ($target) = @_;
                    735:     my $id = $Apache::inputtags::part;
                    736:     my $response='';
1.165     albertel  737:     if ( defined $env{'form.submitted'}) {
1.136     albertel  738: 	my (@awards,@msgs);
1.135     albertel  739: 	foreach $response (@Apache::inputtags::response) {
                    740: 	    &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
                    741: 	    my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
                    742: 	    &Apache::lonxml::debug("keeping $value from $response for $id");
                    743: 	    push (@awards,$value);
1.136     albertel  744: 	    $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
                    745: 	    &Apache::lonxml::debug("got message $value from $response for $id");
                    746: 	    push (@msgs,$value);
1.135     albertel  747: 	}
1.136     albertel  748: 	my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
1.135     albertel  749: 	my $previously_used;
                    750: 	if ( $#Apache::inputtags::previous eq $#awards ) {
                    751: 	    my $match=0;
                    752: 	    my @matches;
                    753: 	    foreach my $versionar (@Apache::inputtags::previous_version) {
                    754: 		foreach my $version (@$versionar) {
                    755: 		    $matches[$version]++;
                    756: 		}
                    757: 	    }
                    758: 	    foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
                    759: 	    if ($match) {
                    760: 		$previously_used = 'PREVIOUSLY_LAST';
                    761: 		foreach my $value (@Apache::inputtags::previous) {
                    762: 		    if ($value eq 'PREVIOUSLY_USED' ) {
                    763: 			$previously_used = $value;
                    764: 			last;
                    765: 		    }
1.75      albertel  766: 		}
                    767: 	    }
1.43      albertel  768: 	}
1.136     albertel  769: 	&Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
                    770: 	&setgradedata($finalaward,$msg,$id,$previously_used);
1.43      albertel  771:     }
1.135     albertel  772:     return '';
1.1       albertel  773: }
                    774: 
1.11      albertel  775: sub gradestatus {
1.135     albertel  776:     my ($id,$target) = @_;
                    777:     my $showbutton = 1;
                    778:     my $bgcolor = '';
                    779:     my $message = '';
                    780:     my $latemessage = '';
                    781:     my $trystr='';
                    782:     my $button='';
                    783:     my $previousmsg='';
                    784: 
                    785:     my $status = $Apache::inputtags::status['-1'];
                    786:     &Apache::lonxml::debug("gradestatus has :$status:");
                    787:     if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
                    788: 	 $status ne 'INVALID_ACCESS') {  
                    789: 	my $award = $Apache::lonhomework::history{"resource.$id.award"};
                    790: 	my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
                    791: 	my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
1.136     albertel  792: 	my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
                    793: 	&Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1.144     albertel  794: 	if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1.135     albertel  795: 	    &Apache::lonxml::debug('Getting message');
                    796: 	    ($showbutton,$bgcolor,$message,$previousmsg) =
1.136     albertel  797: 		&decideoutput($award,$awardmsg,$solved,$previous,$target);
1.135     albertel  798: 	    if ($target eq 'tex') {
                    799: 		$message='\vskip 2 mm '.$message.' ';
                    800: 	    } else {
                    801: 		$message="<td bgcolor=\"$bgcolor\">$message</td>";
                    802: 		if ($previousmsg) {
                    803: 		    $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
                    804: 		}
                    805: 	    }
                    806: 	}
                    807: 	my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
                    808: 	my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
                    809: 	&Apache::lonxml::debug("got maxtries of :$maxtries:");
                    810: 	#if tries are set to negative turn off the Tries/Button and messages
                    811: 	if (defined($maxtries) && $maxtries < 0) { return ''; }
                    812: 	if ( $tries eq '' ) { $tries = '0'; }
                    813: 	if ( $maxtries eq '' ) { $maxtries = '2'; } 
                    814: 	if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
                    815: 	my $tries_text=&mt('Tries');
1.164     albertel  816: 	if ( $Apache::lonhomework::type eq 'survey' ||
                    817: 	     $Apache::lonhomework::parsing_a_task) {
                    818: 	    $tries_text=&mt('Submissions');
                    819: 	}
1.135     albertel  820: 	if ( $showbutton ) {
                    821: 	    if ($target eq 'tex') {
1.165     albertel  822: 		if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
1.135     albertel  823: 		    $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
                    824: 		} else {
                    825: 		    $trystr = '\vskip 0 mm ';
                    826: 		}
                    827: 	    } else {
1.136     albertel  828: 		$trystr = "<td><nobr>".$tries_text." $tries";
1.164     albertel  829: 		if ($Apache::lonhomework::parsing_a_task) {
1.165     albertel  830: 		} elsif($env{'request.state'} ne 'construct') {
1.135     albertel  831: 		    $trystr.="/$maxtries";
                    832: 		} else {
                    833: 		    if (defined($Apache::inputtags::params{'maxtries'})) {
                    834: 			$trystr.="/".$Apache::inputtags::params{'maxtries'};
                    835: 		    }
                    836: 		}
1.136     albertel  837: 		$trystr.="</nobr></td>";
1.135     albertel  838: 	    }
                    839: 	}
                    840: 	if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
                    841: 	if ( $showbutton ) { 
                    842: 	    if ($target ne 'tex') {
1.156     albertel  843: 		$button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
1.135     albertel  844: 	    }
                    845: 	}
                    846: 	if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
                    847: 	    #last submissions was after due date
1.163     albertel  848: 	    $latemessage=&mt(' The last submission was after the Due Date ');;
                    849: 	    if ($target eq 'web') {
                    850: 		$latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
1.135     albertel  851: 	    }
                    852: 	}
                    853:     }
                    854:     my $output= $previousmsg.$latemessage.$message.$trystr;
                    855:     if ($output =~ /^\s*$/) {
                    856: 	return $button;
1.63      sakharuk  857:     } else {
1.135     albertel  858: 	if ($target eq 'tex') {
                    859: 	    return $button.' \vskip 0 mm '.$output.' ';
                    860: 	} else {
                    861: 	    return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
                    862: 	}
1.63      sakharuk  863:     }
1.11      albertel  864: }
1.1       albertel  865: 1;
                    866: __END__
1.43      albertel  867:  

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