[BACK]Return to inputtags.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / homework

Diff for /loncom/homework/inputtags.pm between versions 1.83 and 1.190

version 1.83, 2003/01/27 17:30:27 version 1.190, 2006/03/09 01:11:12
Line 24 Line 24
 # /home/httpd/html/adm/gpl.txt  # /home/httpd/html/adm/gpl.txt
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  
 # 2/19 Guy   
   
 package Apache::inputtags;  package Apache::inputtags;
 use HTML::Entities();  use HTML::Entities();
 use strict;  use strict;
 use Apache::loncommon;  use Apache::loncommon;
   use Apache::lonlocal;
   use Apache::lonnet;
   
 BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::inputtags',('textfield','textline'));      &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
 }  }
   
   #   Initializes a set of global variables used during the parse of the problem.
   #
   #  @Apache::inputtags::input        - List of current input ids.
   #  @Apache::inputtags::inputlist    - List of all input ids seen this problem.
   #  @Apache::inputtags::response     - List of all current resopnse ids.
   #  @Apache::inputtags::responselist - List of all response ids seen this 
   #                                       problem.
   #  @Apache::inputtags::hint         - List of all hint ids.
   #  @Apache::inputtags::hintlist     - List of all hint ids seen this problem.
   #  @Apache::inputtags::previous     - List describing if specific responseds
   #                                       have been used
   #  @Apache::inputtags::previous_version - Submission responses were used in.
   #  $Apache::inputtags::part         - Current part id (valid only in 
   #                                       <problem>)
   #                                     0 if not in a part.
   #  @Apache::inputtags::partlist     - List of part ids seen in the current
   #                                       <problem>
   #  @Apache::inputtags::status       - List of problem  statuses. First 
   #                                     element is the status of the <problem>
   #                                     the remainder are for individual <part>s.
   #  %Apache::inputtags::params       - Hash of defined parameters for the
   #                                     current response.
   #  @Apache::inputtags::import       - List of all ids for <import> thes get
   #                                     join()ed and prepended.
   #  @Apache::inputtags::importlist   - List of all import ids seen.
   #  $Apache::inputtags::response_with_no_part
   #                                   - Flag set true if we have seen a response
   #                                     that is not inside a <part>
   #  %Apache::inputtags::answertxt    - <*response> tags store correct
   #                                     answer strings for display by <textline/>
   #                                     in this hash.
   
 sub initialize_inputtags {  sub initialize_inputtags {
   # list of current input ids      @Apache::inputtags::input=();
   @Apache::inputtags::input=();      @Apache::inputtags::inputlist=();
   # list of all input ids seen in this problem      @Apache::inputtags::response=();
   @Apache::inputtags::inputlist=();      @Apache::inputtags::responselist=();
   # list of all current response ids      @Apache::inputtags::hint=();
   @Apache::inputtags::response=();      @Apache::inputtags::hintlist=();
   # list of all response ids seen in this problem      @Apache::inputtags::previous=();
   @Apache::inputtags::responselist=();      @Apache::inputtags::previous_version=();
   # list of whether or not a specific response was previously used      $Apache::inputtags::part='';
   @Apache::inputtags::previous=();      @Apache::inputtags::partlist=();
   # submission it was used in      @Apache::inputtags::status=();
   @Apache::inputtags::previous_version=();      %Apache::inputtags::params=();
   # id of current part, 0 means that no part is current (inside <problem> only      @Apache::inputtags::import=();
   $Apache::inputtags::part='';      @Apache::inputtags::importlist=();
   # list of problem date statuses, the first element is for <problem>      $Apache::inputtags::response_with_no_part=0;
   # if there is a second element it is for the current <part>      %Apache::inputtags::answertxt=();
   @Apache::inputtags::status=();  }
   # hash of defined params for the current response  
   %Apache::inputtags::params=();  sub check_for_duplicate_ids {
   # list of all ids, for <import>, these get join()ed and prepended      my %check;
   @Apache::inputtags::import=();      foreach my $id (@Apache::inputtags::partlist,
       @Apache::inputtags::responselist,
       @Apache::inputtags::hintlist,
       @Apache::inputtags::importlist) {
    $check{$id}++;
       }
       my @duplicates;
       foreach my $id (sort(keys(%check))) {
    if ($check{$id} > 1) {
       push(@duplicates,$id);
    }
       }
       if (@duplicates) {
    &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
       }
 }  }
   
 sub start_input {  sub start_input {
   my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
   my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);      my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
   if ($id eq '') { $id = $Apache::lonxml::curdepth; }      if ($id eq '') { $id = $Apache::lonxml::curdepth; }
   push (@Apache::inputtags::input,$id);      push (@Apache::inputtags::input,$id);
   push (@Apache::inputtags::inputlist,$id);      push (@Apache::inputtags::inputlist,$id);
   return $id;      return $id;
 }  }
   
 sub end_input {  sub end_input {
   pop @Apache::inputtags::input;      pop @Apache::inputtags::input;
   return '';      return '';
   }
   
   sub addchars {
       my ($fieldid,$addchars)=@_;
       my $output='';
       foreach (split(/\,/,$addchars)) {
    $output.='<a href="javascript:void(document.forms.lonhomework.'.
       $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
       }
       return $output;
 }  }
   
 sub start_textfield {  sub start_textfield {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result = "";      my $result = "";
   my $id = &start_input($parstack,$safeeval);      my $id = &start_input($parstack,$safeeval);
   my $resid=$Apache::inputtags::response[-1];      my $resid=$Apache::inputtags::response[-1];
   if ($target eq 'web') {      if ($target eq 'web') {
     $Apache::lonxml::evaluate--;   $Apache::lonxml::evaluate--;
     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {   if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
  my $partid=$Apache::inputtags::part;      my $partid=$Apache::inputtags::part;
  my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});      my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
  my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);      my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
  if ( $cols eq '') { $cols = 80; }      if ( $cols eq '') { $cols = 80; }
  my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);      my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
  if ( $rows eq '') { $rows = 10; }      if ( $rows eq '') { $rows = 16; }
  $result= '<textarea name="HWVAL'.$resid.'" '.      my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
     "rows=\"$rows\" cols=\"$cols\">".$oldresponse;      $result='';
  if ($oldresponse ne '') {      if ($addchars) {
     #get rid of any startup text if the user has already responded   $result.=&addchars('HWVAL_'.$resid,$addchars);
     &Apache::lonxml::get_all_text("/textfield",$$parser[-1]);      }
       push @Apache::lonxml::htmlareafields,'HWVAL_'.$resid;
       $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
    "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
       if ($oldresponse ne '') {
   
    #get rid of any startup text if the user has already responded
    &Apache::lonxml::get_all_text("/textfield",$parser,$style);
       }
    } else {
       #right or wrong don't show it
       #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
       $result='';
       #get rid of any startup text
       &Apache::lonxml::get_all_text("/textfield",$parser,$style);
    }
       } elsif ($target eq 'grade') {
    my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
      $style);
    if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
       # if the seed text is still there it wasn't a real submission
       $env{'form.HWVAL_'.$resid}='';
    }
       } elsif ($target eq 'edit') {
    $result.=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
    $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
    $result.=&Apache::edit::text_arg
       ('Click-On Texts (comma sep):','addchars',$token,10);
    my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
      $style);
    $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'rows','cols',
        'addchars');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    } else {
       $result=$token->[4];
    }
    $result.=&Apache::edit::modifiedfield("/textfield",$parser);
       } elsif ($target eq 'tex') {
    my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
    my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
    if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
       $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
       for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
       $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
    } else {
       my $TeXwidth=$width_of_box/80;
       $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
       for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
       $result.='}}}\vskip 2 mm ';
  }   }
     } else {  
  #right or wrong don't show it  
  #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';  
  $result='';  
  #get rid of any startup text  
  &Apache::lonxml::get_all_text("/textfield",$$parser[-1]);  
     }  
   } elsif ($target eq 'grade') {  
     my $seedtext=&Apache::lonxml::get_all_text("/textfield",$$parser[-1]);  
     if ($seedtext eq $ENV{'form.HWVAL'.$resid}) {  
       # if the seed text is still there it wasn't a real submission  
       $ENV{'form.HWVAL'.$resid}='';  
     }  
   } elsif ($target eq 'edit') {  
     $result.=&Apache::edit::tag_start($target,$token);  
     $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);  
     $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);  
     my $bodytext=&Apache::lonxml::get_all_text("/textfield",$$parser[-1]);  
     $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);  
   } elsif ($target eq 'modified') {  
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,  
  $safeeval,'rows','cols');  
     if ($constructtag) {  
       $result = &Apache::edit::rebuild_tag($token);  
     } else {  
       $result=$token->[4];  
     }      }
     $result.=&Apache::edit::modifiedfield();      return $result;
   } elsif ($target eq 'tex') {  
       if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {  
   my $number_of_lines= &Apache::lonxml::get_param('rows',$parstack,$safeeval);  
   $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';  
  for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}  
  $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';  
       }  
   }  
   return $result;  
 }  }
   
 sub end_textfield {  sub end_textfield {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $result;      my $result;
   if ($target eq 'web') {      if ($target eq 'web') {
     $Apache::lonxml::evaluate++;   $Apache::lonxml::evaluate++;
     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {   if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
       return "</textarea>";      return "</textarea>";
     }   }
   } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
     $result=&Apache::edit::end_table();   $result=&Apache::edit::end_table();
   }      }
   &end_input;      &end_input;
   return $result;      return $result;
   }
   
   sub exam_score_line {
       my ($target) = @_;
   
       my $result;
       if ($target eq 'tex') {
    my $repetition = &Apache::response::repetition();
    $result.='\begin{enumerate}';
    if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
    foreach my $i (0..$repetition-1) {
       $result.='\item[\textbf{'.
    ($Apache::lonxml::counter+$i).
    '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
    }
    $result.= '\end{enumerate}';
       }
   
       return $result;
   }
   
   sub exam_box {
       my ($target) = @_;
       my $result;
   
       if ($target eq 'tex') {
    $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
    $result .= &exam_score_line($target);
       } elsif ($target eq 'web') {
    my $id=$Apache::inputtags::response[-1];
    $result.= '<br /><br />
                      <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
                      </textarea> <br /><br />';
       }
       return $result;
   }
   
   sub needs_exam_box {
       my ($tagstack) = @_;
       my @tags = ('formularesponse',
    'stringresponse',
    'reactionresponse',
    'organicresponse',
    );
   
       foreach my $tag (@tags) {
    if (grep(/\Q$tag\E/,@$tagstack)) {
       return 1;
    }
       }
       return 0;
 }  }
   
 sub start_textline {  sub start_textline {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $result = "";      my $result = "";
   if ($target eq 'web') {      if ($target eq 'web') {
     $Apache::lonxml::evaluate--;   $Apache::lonxml::evaluate--;
     if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {   my $partid=$Apache::inputtags::part;
       my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);   my $id=$Apache::inputtags::response[-1];
       my $maxlength;   if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
       if ($size eq '') { $size=20; } else {      my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
  if ($size < 20) { $maxlength=$size; }      my $maxlength;
       }      if ($size eq '') { $size=20; } else {
       my $partid=$Apache::inputtags::part;   if ($size < 20) { $maxlength=$size; }
       my $id=$Apache::inputtags::response[-1];      }
       my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});      my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
       if ($Apache::lonhomework::type ne 'exam') {      if ($Apache::lonhomework::type ne 'exam') {
         $result= '<input type="text" name="HWVAL'.$id.'" value="'.   my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
     $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';   $result='';
       }   if ($addchars) {
     } else {      $result.=&addchars('HWVAL_'.$id,$addchars);
       #right or wrong don't show what was last typed in.   }
       #$result='<i>'.$oldresponse.'</i>';   my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
       $result='';   $safeeval);
     }   if (lc($readonly) eq 'yes') {
   } elsif ($target eq 'edit') {      $readonly=' readonly="readonly" ';
     $result=&Apache::edit::tag_start($target,$token);   } else {
     $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";      $readonly='';
     $result.=&Apache::edit::end_table;   }
   } elsif ($target eq 'modified') {   $result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');      $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }      }
   } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {      if ($Apache::lonhomework::type eq 'exam'
       my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);   && &needs_exam_box($tagstack)) {
       if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}   $result.=&exam_box($target);
       $result='\framebox['.$size.'][s]{\tiny\strut}';      }
   }   } else {
   return $result;      #right or wrong don't show what was last typed in.
       $result='<b>'.$Apache::inputtags::answertxt{$id}.'</b>';
       #$result='';
    }
       } elsif ($target eq 'edit') {
    $result=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
       &Apache::edit::text_arg('Click-On Texts (comma sep):',
       'addchars',$token,10);
           $result.=&Apache::edit::select_arg('Readonly:','readonly',
      ['no','yes'],$token);
    $result.=&Apache::edit::end_row();
    $result.=&Apache::edit::end_table();
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,
        $safeeval,'size',
        'addchars','readonly');
    if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
       } elsif ($target eq 'tex' 
        && $Apache::lonhomework::type ne 'exam') {
    my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
    if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
    $result='\framebox['.$size.'][s]{\tiny\strut}';
   
       } elsif ($target eq 'tex' 
        && $Apache::lonhomework::type eq 'exam'
        && &needs_exam_box($tagstack)) {
    $result.=&exam_box($target);
       }
       return $result;
 }  }
   
 sub end_textline {  sub end_textline {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   if    ($target eq 'web') { $Apache::lonxml::evaluate++; }      if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
   elsif ($target eq 'edit') { return ('','no'); }      elsif ($target eq 'edit') { return ('','no'); }
   return "";      return "";
   }
   
   sub start_hiddenline {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result = "";
       if ($target eq 'web') {
    $Apache::lonxml::evaluate--;
    if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
       my $partid=$Apache::inputtags::part;
       my $id=$Apache::inputtags::response[-1];
       my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
       if ($Apache::lonhomework::type ne 'exam') {
    $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
       $oldresponse.'" />';
       }
    }
       } elsif ($target eq 'edit') {
    $result=&Apache::edit::tag_start($target,$token);
    $result.=&Apache::edit::end_table;
       }
   
       if ( ($target eq 'web' || $target eq 'tex')
    && $Apache::lonhomework::type eq 'exam'
    && &needs_exam_box($tagstack)) {
    $result.=&exam_box($target);
       }
       return $result;
   }
   
   sub end_hiddenline {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
       elsif ($target eq 'edit') { return ('','no'); }
       return "";
   }
   
   # $part -> partid
   # $id -> responseid
   # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
   # $which -> 'uploadedonly'  -> only newly uploaded files
   #           'portfolioonly' -> only allow files from portfolio
   #           'both' -> allow files from either location
   # $extratext -> additional text to go between the link and the input box
   # returns a table row <tr> 
   sub file_selector {
       my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
       if (!$uploadedfiletypes) { return ''; }
   
       my $jspart=$part;
       $jspart=~s/\./_/g;
   
       my $result;
       
       $result.='<tr><td>';
       if ($uploadedfiletypes ne '*') {
    $result.=
       &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
       }
       if ($which eq 'uploadonly' || $which eq 'both') { 
    $result.=&mt('Submit a file: (only one file can be uploaded)').
       ' <br /><input type="file" size="50" name="HWFILE'.
       $jspart.'_'.$id.'" /><br />';
    my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
   
    if ($uploadedfile) {
       my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
       &Apache::lonxml::extlink($url);
       &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
       my $icon=&Apache::loncommon::icon($url);
       my $curfile='<a href="'.$url.'"><img src="'.$icon.
    '" border="0" />'.$uploadedfile.'</a>';
       $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
    } else {
       #$result.=&mt('(Hand in a file you have prepared on your computer)');
    }
       }
       if ( $which eq 'both') { 
    $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
       }
       if ($which eq 'portfolioonly' || $which eq 'both') { 
    $result.=$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"))'."'".'>'.
       &mt('Select Portfolio Files').'</a><br />'.
       '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
       '<br />';
    if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
       my (@filelist,@bad_file_list);
       foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
    my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
    my $url="/uploaded/$domain/$user/portfolio$file";
    my $icon=&Apache::loncommon::icon($url);
    push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
        '" border="0" />'.$file.'</a>');
    if (! &Apache::lonnet::stat_file($url)) {
       push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
    '" border="0" />'.$file.'</a>');
    }
       }
       $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
       if (@bad_file_list) {
    $result.='<br />'.&mt('<font color="red">These file(s) don\'t exist:</font> <strong>[_1]</strong>',join(', ',@bad_file_list));
       }
    }
       }
       $result.='</td></tr>'; 
       return $result;
   }
   
   sub checkstatus {
       my ($value,$awardref,$msgref)=@_;
       for (my $i=0;$i<=$#$awardref;$i++) {
    if ($$awardref[$i] eq $value) {
       return ($$awardref[$i],$$msgref[$i]);
    }
       }
       return(undef,undef);
   }
   
   sub valid_award {
       my ($award) =@_;
       foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
          'NO_RESPONSE',
          'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
          'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
          'UNIT_FAIL', 'NO_UNIT',
          'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
          'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT', 
          'MISORDERED_RANK', 'INVALID_FILETYPE',
          'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
          'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
    if ($award eq $possibleaward) { return 1; }
       }
       return 0;
 }  }
   
 sub finalizeawards {  sub finalizeawards {
   my $result='';      my ($awardref,$msgref,$nameref,$reverse)=@_;
   my $award;      my $result=undef;
   if ($#_ == '-1') { $result = "NO_RESPONSE"; }      my $award;
   if ($result eq '' ) {      my $msg;
     my $blankcount;      if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
     foreach $award (@_) {      if ($result eq '' ) {
       if ($award eq '') {   my $blankcount;
  $result='MISSING_ANSWER';   foreach $award (@$awardref) {
  $blankcount++;      if ($award eq '') {
       }   $result='MISSING_ANSWER';
     }   $blankcount++;
     if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }      }
   }   }
   if ($result eq '' ) {   if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
     foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}      }
   }      if (defined($result)) { return ($result,$msg); }
   if ($result eq '' ) {  
     foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}      # these awards are ordered from most important error through best correct
   }      
   if ($result eq '' ) {      my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
     foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }    'TOO_LONG',
   }    'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
     'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
   if ($result eq '' ) {    'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
     foreach $award (@_) {     'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
       if ($award eq 'UNIT_FAIL' ||    'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
   $award eq 'NO_UNIT' ||    'APPROX_ANS', 'EXACT_ANS');
   $award eq 'UNIT_NOTNEEDED') {      if ($reverse) { @awards=reverse(@awards); }
  $result=$award; last;      foreach my $possibleaward (@awards) {
       }   ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
     }   if (defined($result)) { return ($result,$msg); }
   }      }
   if ($result eq '' ) {      return ('ERROR',undef);
     foreach $award (@_) {   
       if ($award eq 'WANTED_NUMERIC' ||   
   $award eq 'BAD_FORMULA') {$result=$award; last;}  
     }  
   }  
   if ($result eq '' ) {  
     foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }  
   }  
   if ($result eq '' ) {  
     foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }  
   }  
   if ($result eq '' ) {  
       foreach $award (@_) { if ($award eq 'MISORDERED_RANK') {$result=$award; last;} }  
   }  
   if ($result eq '' ) {  
       foreach $award (@_) { if ($award eq 'INVALID_FILETYPE') {$result=$award; last;} }  
   }  
   if ($result eq '' ) {  
     foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }  
   }  
   if ($result eq '' ) {  
     foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }  
   }  
   if ($result eq '' ) {  
     foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }  
   }  
   if ($result eq '' ) { $result='EXACT_ANS'; }  
   return $result  
 }  }
   
 sub decideoutput {  sub decideoutput {
   my ($award,$solved,$previous,$target)=@_;      my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
   my $message='';      my $message='';
   my $button=0;      my $button=0;
   my $previousmsg;      my $previousmsg;
       my $bgcolor='orange';
   if ($previous) { $previousmsg='You have entered that answer before'; }      my $added_computer_text=0;
       my %possiblecolors =
    ( 'correct' => '#aaffaa',
     'charged_try' => '#ffaaaa',
     'not_charged_try' => '#ffffaa',
     'no_message' => '#fffff',
     );
   
       my $part = $Apache::inputtags::part;
       my $handgrade = 
    ('yes' eq lc(&Apache::lonnet::EXT("resource.$part.handgrade")));
       
       my $computer = ($handgrade)? ''
                          : " ".&mt("Computer's answer now shown above.");
       &Apache::lonxml::debug("handgrade has :$handgrade:");
   
       if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
       
       if      ($solved =~ /^correct/) {
    $bgcolor=$possiblecolors{'correct'};
    $message=&mt('You are correct.');
    if ($awarded < 1 && $awarded > 0) {
       $message=&mt('You are partially correct.');
       $bgcolor=$possiblecolors{'not_charged_try'};
    } elsif ($awarded < 1) {
       $message=&mt('Incorrect.');
       $bgcolor=$possiblecolors{'charged_try'};
    }
    if ($env{'request.filename'} =~ 
       m|/res/lib/templates/examupload.problem$|) {
       $message = &mt("A score has been assigned.");
       $added_computer_text=1;
    } else {
       if ($target eq 'tex') {
    $message = '\textbf{'.$message.'}';
       } else {
    $message = "<b>".$message."</b>";
    $message.= $computer;
       }
       $added_computer_text=1;
       unless ($env{'course.'.
        $env{'request.course.id'}.
        '.disable_receipt_display'} eq 'yes') { 
    $message.=(($target eq 'web')?'<br />':' ').
       &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
       (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
       }
    }
    $button=0;
    $previousmsg='';
       } elsif ($solved =~ /^excused/) {
    if ($target eq 'tex') {
       $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
    } else {
       $message = "<b>".&mt('You are excused from the problem.')."</b>";
    }
    $bgcolor=$possiblecolors{'charged_try'};
    $button=0;
    $previousmsg='';
       } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
    if ($solved =~ /^incorrect/ || $solved eq '') {
       $message = &mt("Incorrect").".";
       $bgcolor=$possiblecolors{'charged_try'};
       $button=1;
    } else {
       if ($target eq 'tex') {
    $message = '\textbf{'.&mt('You are correct.').'}';
       } else {
    $message = "<b>".&mt('You are correct.')."</b>";
    $message.= $computer;
       }
       $added_computer_text=1;
       unless ($env{'course.'.
        $env{'request.course.id'}.
        '.disable_receipt_display'} eq 'yes') { 
    $message.=(($target eq 'web')?'<br />':' ').
       'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
       (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
       }
       $bgcolor=$possiblecolors{'correct'};
       $button=0;
       $previousmsg='';
    }
       } elsif ($award eq 'NO_RESPONSE') {
    $message = '';
    $bgcolor=$possiblecolors{'no_feedback'};
    $button=1;
       } elsif ($award eq 'EXTRA_ANSWER') {
    $message = &mt('Some extra items were submitted.');
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button = 1;
       } elsif ($award eq 'MISSING_ANSWER') {
    $message = &mt('Some items were not submitted.');
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button = 1;
       } elsif ($award eq 'ERROR') {
    $message = &mt('An error occured while grading your answer.');
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button = 1;
       } elsif ($award eq 'TOO_LONG') {
    $message = &mt("The submitted answer was too long.");
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'WANTED_NUMERIC') {
    $message = &mt("This question expects a numeric answer.");
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'MISORDERED_RANK') {
    $message = &mt('You have provided an invalid ranking');
    if ($target ne 'tex') {
       $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
    }
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'INVALID_FILETYPE') {
    $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'SIG_FAIL') {
    my ($used,$min,$max)=split(':',$awardmsg);
    my $word;
    if ($used < $min) { $word=&mt('more'); }
    if ($used > $max) { $word=&mt('fewer'); }
    $message = &mt("Submission not graded.  Use [_2] digits.",$used,$word);
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
    $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
    if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'UNIT_INVALID_STUDENT') {
    $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
    if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
    $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
    if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'UNIT_NOTNEEDED') {
    $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'NO_UNIT') {
    $message = &mt("Units required").'.';
    if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'COMMA_FAIL') {
    $message = &mt("Proper comma separation is required").'.';
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'BAD_FORMULA') {
    $message = &mt("Unable to understand formula");
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'INCORRECT') {
    $message = &mt("Incorrect").'.';
    $bgcolor=$possiblecolors{'charged_try'};
    $button=1;
       } elsif ($award eq 'SUBMITTED') {
    $message = &mt("Your submission has been recorded.");
    $bgcolor=$possiblecolors{'correct'};
    $button=1;
       } elsif ($award eq 'DRAFT') {
    $message = &mt("A draft copy has been saved.");
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'ASSIGNED_SCORE') {
    $message = &mt("A score has been assigned.");
    $bgcolor=$possiblecolors{'correct'};
    $button=0;
       } elsif ($award eq '') {
    if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
       $message = &mt("Nothing submitted.");
       $bgcolor=$possiblecolors{'charged_try'};
    } else {
       $bgcolor=$possiblecolors{'not_charged_try'};
    }
    $button=1;
       } else {
    $message = &mt("Unknown message").": $award";
    $button=1;
       }
       if (lc($Apache::lonhomework::problemstatus) eq 'no'  && 
    $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
    $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
    $bgcolor=$possiblecolors{'correct'};
    $button=1;
       }
       if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' && 
    !$added_computer_text && $target ne 'tex') {
    $message.= $computer;
    $added_computer_text=1;
       }
       return ($button,$bgcolor,$message,$previousmsg);
   }
   
   if      ($solved =~ /^correct/) {  sub markup_unit {
       my ($unit,$target)=@_;
     if ($target eq 'tex') {      if ($target eq 'tex') {
       $message = '\textbf{You are correct}. Your receipt is '.   return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}'; 
       &Apache::lonnet::receipt;  
     } else {      } else {
       $message = "<b>You are correct.</b> Your receipt is ".   return "<tt>".$unit."</tt>";
       &Apache::lonnet::receipt;  
     }      }
     $button=0;  
     $previousmsg='';  
   } elsif ($solved =~ /^excused/) {  
     $message = "<b>You are excused from the problem.</b>";  
     $button=0;  
     $previousmsg='';  
   } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {  
     if ($solved =~ /^incorrect/ || $solved eq '') {  
       $message = "Incorrect";  
       $button=1;  
     } else {  
       $message = "<b>You are correct.</b> Your receipt is ".  
  &Apache::lonnet::receipt;  
       $button=0;  
       $previousmsg='';  
     }  
   } elsif ($award eq 'NO_RESPONSE') {  
     $message = '';  
     $button=1;  
   } elsif ($award eq 'MISSING_ANSWER') {  
     $message = 'Some parts were not submitted';  
     $button = 1;  
   } elsif ($award eq 'WANTED_NUMERIC') {  
     $message = "This question expects a numeric answer";  
     $button=1;  
   } elsif ($award eq 'MISORDERED_RANK') {  
     $message = 'You have provided an invalid ranking, please refer to '.  
      &Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';  
     $button=1;  
   } elsif ($award eq 'INVALID_FILETYPE') {  
     $message = 'The filetype extension of the file you uploaded is not allowed.';  
     $button=1;  
   } elsif ($award eq 'SIG_FAIL') {  
     $message = "Please adjust significant figures.";# you provided %s significant figures";  
     $button=1;  
   } elsif ($award eq 'UNIT_FAIL') {  
     $message = "Units incorrect. ".  
        &Apache::loncommon::help_open_topic('Physical_Units'); #Computer reads units as %s";  
     $button=1;  
   } elsif ($award eq 'UNIT_NOTNEEDED') {  
     $message = "Only a number required.";# Computer reads units of %s";  
     $button=1;  
   } elsif ($award eq 'NO_UNIT') {  
     $message = "Units required".  
        &Apache::loncommon::help_open_topic('Physical_Units');  
     $button=1;  
   } elsif ($award eq 'BAD_FORMULA') {  
     $message = "Unable to understand formula";  
     $button=1;  
   } elsif ($award eq 'INCORRECT') {  
     $message = "Incorrect";  
     $button=1;  
   } elsif ($award eq 'SUBMITTED') {  
     $message = "Your submission has been recorded.";  
     $button=1;  
   } elsif ($award eq 'DRAFT') {  
     $message = "A draft copy has been saved.";  
     $button=1;  
   } else {  
     $message = "Unknown message: $award";  
     $button=1;  
   }  
   return ($button,$message,$previousmsg);  
 }  }
   
 sub setgradedata {  sub removealldata {
   my ($award,$id,$previously_used) = @_;      my ($id)=@_;
   # if the student already has it correct, don't modify the status      foreach my $key (keys(%Apache::lonhomework::results)) {
   if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&   if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
       $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {      &Apache::lonxml::debug("Removing $key");
     $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;      delete($Apache::lonhomework::results{$key});
     return '';   }
   } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~  
        /^correct/ ) {  
     #handle assignment of tries and solved status  
     if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {  
       $Apache::lonhomework::results{"resource.$id.afterduedate"}='';  
     }  
     if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {  
       $Apache::lonhomework::results{"resource.$id.tries"} =  
  $Apache::lonhomework::history{"resource.$id.tries"} + 1;  
       $Apache::lonhomework::results{"resource.$id.solved"} =  
  'correct_by_student';  
       $Apache::lonhomework::results{"resource.$id.awarded"} = '1';  
     } elsif ( $award eq 'INCORRECT' ) {  
       $Apache::lonhomework::results{"resource.$id.tries"} =  
  $Apache::lonhomework::history{"resource.$id.tries"} + 1;  
       $Apache::lonhomework::results{"resource.$id.solved"} =  
  'incorrect_attempted'  
     } elsif ( $award eq 'SUBMITTED' ) {  
       $Apache::lonhomework::results{"resource.$id.tries"} =  
  $Apache::lonhomework::history{"resource.$id.tries"} + 1;  
       $Apache::lonhomework::results{"resource.$id.solved"} =  
  'ungraded_attempted';  
     } elsif ( $award eq 'DRAFT' ) {  
       $Apache::lonhomework::results{"resource.$id.solved"} = '';  
     } elsif ( $award eq 'NO_RESPONSE' ) {  
       return '';  
     } else {  
       $Apache::lonhomework::results{"resource.$id.solved"} =  
  'incorrect_attempted';  
     }      }
   }
   
     # check if this was a previous submission if it was delete the  sub hidealldata {
     # unneeded data and update the previously_used attribute      my ($id)=@_;
     if ( $previously_used eq 'PREVIOUSLY_USED') {      foreach my $key (keys(%Apache::lonhomework::results)) {
       delete($Apache::lonhomework::results{"resource.$id.tries"});   if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
       $Apache::lonhomework::results{"resource.$id.previous"} = '1';      &Apache::lonxml::debug("Hidding $key");
     } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {      my $newkey=$key;
       #delete all data as they student didn't do anything, but save      $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
       #the list of collaborators.      $Apache::lonhomework::results{$newkey}=
       foreach my $key (keys(%Apache::lonhomework::results)) {   $Apache::lonhomework::results{$key};
  if (($key =~ /^resource\.$id\./) && ($key !~ /\.collaborators$/)) {      delete($Apache::lonhomework::results{$key});
   &Apache::lonxml::debug("Removing $key");   }
   delete($Apache::lonhomework::results{$key});      }
  }  }
       }  
       #and since they didn't do anything we were never here  sub setgradedata {
       return '';      my ($award,$msg,$id,$previously_used) = @_;
     } else {      if ($Apache::lonhomework::scantronmode && 
       $Apache::lonhomework::results{"resource.$id.previous"} = '0';   &Apache::lonnet::validCODE($env{'form.CODE'})) {
    $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
       } elsif ($Apache::lonhomework::scantronmode && 
        $env{'form.CODE'} eq '' &&
        $Apache::lonhomework::history{"resource.CODE"} ne '') {
    $Apache::lonhomework::results{"resource.CODE"}='';
       }
   
       if (!$Apache::lonhomework::scantronmode &&
    $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
    $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
    $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
    return '';
       } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
         /^correct/ || $Apache::lonhomework::scantronmode ||
         lc($Apache::lonhomework::problemstatus) eq 'no') {
           # the student doesn't already have it correct,
    # or we are in a mode (scantron orno problem status) where a correct 
           # can become incorrect
    # handle assignment of tries and solved status
    my $solvemsg;
    if ($Apache::lonhomework::scantronmode) {
       $solvemsg='correct_by_scantron';
    } else {
       $solvemsg='correct_by_student';
    }
    if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
       $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
    }
    if ( $award eq 'ASSIGNED_SCORE') {
       $Apache::lonhomework::results{"resource.$id.tries"} =
    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
       $Apache::lonhomework::results{"resource.$id.solved"} =
    $solvemsg;
       my $numawards=scalar(@Apache::inputtags::response);
       $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
       foreach my $res (@Apache::inputtags::response) {
    $Apache::lonhomework::results{"resource.$id.awarded"}+=
       $Apache::lonhomework::results{"resource.$id.$res.awarded"};
       }
       if ($numawards > 0) {
    $Apache::lonhomework::results{"resource.$id.awarded"}/=
       $numawards;
       }
    } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
       $Apache::lonhomework::results{"resource.$id.tries"} =
    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
       $Apache::lonhomework::results{"resource.$id.solved"} =
    $solvemsg;
       $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
    } elsif ( $award eq 'INCORRECT' ) {
       $Apache::lonhomework::results{"resource.$id.tries"} =
    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
       if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
    $Apache::lonhomework::scantronmode) {
    $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
       }
       $Apache::lonhomework::results{"resource.$id.solved"} =
    'incorrect_attempted';
    } elsif ( $award eq 'SUBMITTED' ) {
       $Apache::lonhomework::results{"resource.$id.tries"} =
    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
       $Apache::lonhomework::results{"resource.$id.solved"} =
    'ungraded_attempted';
    } elsif ( $award eq 'DRAFT' ) {
       $Apache::lonhomework::results{"resource.$id.solved"} = '';
    } elsif ( $award eq 'NO_RESPONSE' ) {
       #no real response so delete any data that got stored
       &removealldata($id);
       return '';
    } else {
       $Apache::lonhomework::results{"resource.$id.solved"} =
    'incorrect_attempted';
       if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
    $Apache::lonhomework::scantronmode) {
    $Apache::lonhomework::results{"resource.$id.tries"} =
       $Apache::lonhomework::history{"resource.$id.tries"} + 1;
    $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
       }
    }
    if (defined($msg)) {
       $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
    }
    # did either of the overall awards chage? If so ignore the 
    # previous check
    if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
        $Apache::lonhomework::history{"resource.$id.awarded"}) &&
       ($Apache::lonhomework::results{"resource.$id.solved"} eq
        $Apache::lonhomework::history{"resource.$id.solved"})) {
       # check if this was a previous submission if it was delete the
       # unneeded data and update the previously_used attribute
       if ( $previously_used eq 'PREVIOUSLY_USED') {
    if (lc($Apache::lonhomework::problemstatus) ne 'no') {
       delete($Apache::lonhomework::results{"resource.$id.tries"});
       $Apache::lonhomework::results{"resource.$id.previous"} = '1';
    }
       } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
    #delete all data as they student didn't do anything, but save
    #the list of collaborators.
    &removealldata($id);
    #and since they didn't do anything we were never here
    return '';
       } else {
    $Apache::lonhomework::results{"resource.$id.previous"} = '0';
       }
    }
       } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
         /^correct/ ) {
    #delete all data as they student already has it correct
    &removealldata($id);
    #and since they didn't do anything we were never here
    return '';
       }
       $Apache::lonhomework::results{"resource.$id.award"} = $award;
       if ($award eq 'SUBMITTED') {
    &Apache::response::add_to_gradingqueue();
     }      }
   }  
   $Apache::lonhomework::results{"resource.$id.award"} = $award;  
 }  }
   
 sub grade {  sub grade {
   my ($target) = @_;      my ($target) = @_;
   my $id = $Apache::inputtags::part;      my $id = $Apache::inputtags::part;
   my $response='';      my $response='';
   if ( defined $ENV{'form.submitted'}) {      if ( defined $env{'form.submitted'}) {
     my @awards = ();   my (@awards,@msgs);
     foreach $response (@Apache::inputtags::responselist) {   foreach $response (@Apache::inputtags::response) {
       &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");      &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
       my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};      my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
       &Apache::lonxml::debug("keeping $value from $response for $id");      &Apache::lonxml::debug("keeping $value from $response for $id");
       push (@awards,$value);      push (@awards,$value);
     }      $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
     my $finalaward = &finalizeawards(@awards);      &Apache::lonxml::debug("got message $value from $response for $id");
     my $previously_used;      push (@msgs,$value);
     if ( $#Apache::inputtags::previous eq $#awards ) {   }
  my $match=0;   my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
  my @matches;   my $previously_used;
  foreach my $versionar (@Apache::inputtags::previous_version) {   if ( $#Apache::inputtags::previous eq $#awards ) {
     foreach my $version (@$versionar) {      my $match=0;
  $matches[$version]++;      my @matches;
     }      foreach my $versionar (@Apache::inputtags::previous_version) {
  }   foreach my $version (@$versionar) {
  foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}      $matches[$version]++;
  if ($match) {   }
     $previously_used = 'PREVIOUSLY_LAST';      }
     foreach my $value (@Apache::inputtags::previous) {      foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
  if ($value eq 'PREVIOUSLY_USED' ) {      if ($match) {
     $previously_used = $value;   $previously_used = 'PREVIOUSLY_LAST';
     last;   foreach my $value (@Apache::inputtags::previous) {
       if ($value eq 'PREVIOUSLY_USED' ) {
    $previously_used = $value;
    last;
       }
  }   }
     }      }
  }   }
    &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
    &setgradedata($finalaward,$msg,$id,$previously_used);
     }      }
     &Apache::lonxml::debug("final award $finalaward, $previously_used");      return '';
     &setgradedata($finalaward,$id,$previously_used);  
   }  
   return '';  
 }  }
   
 sub gradestatus {  sub gradestatus {
   my ($id,$target) = @_;      my ($id,$target) = @_;
   my $showbutton = 1;      my $showbutton = 1;
   my $message = '';      my $bgcolor = '';
   my $latemessage = '';      my $message = '';
   my $trystr='';      my $latemessage = '';
   my $button='';      my $trystr='';
   my $previousmsg='';      my $button='';
       my $previousmsg='';
   my $status = $Apache::inputtags::status['-1'];  
   &Apache::lonxml::debug("gradestatus has :$status:");      my $status = $Apache::inputtags::status['-1'];
   if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE') {        &Apache::lonxml::debug("gradestatus has :$status:");
     my $award = $Apache::lonhomework::history{"resource.$id.award"};      if ( $status ne 'CLOSED' 
     my $solved = $Apache::lonhomework::history{"resource.$id.solved"};   && $status ne 'UNAVAILABLE' 
     my $previous = $Apache::lonhomework::history{"resource.$id.previous"};   && $status ne 'INVALID_ACCESS' 
     &Apache::lonxml::debug("Found Award |$award|$solved|");   && $status ne 'NEEDS_CHECKIN' 
     if ( $award ne '' ) {   && $status ne 'NOT_IN_A_SLOT') {  
       &Apache::lonxml::debug('Getting message');   my $award = $Apache::lonhomework::history{"resource.$id.award"};
       ($showbutton,$message,$previousmsg) =   my $awarded = $Apache::lonhomework::history{"resource.$id.awarded"};
  &decideoutput($award,$solved,$previous,$target);   my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
       if ($target eq 'tex') {   my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
  $message=' '.$message.' ';   my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
       } else {   &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
  $message="<td bgcolor=\"#aaffaa\">$message</td>";   if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
  if ($previousmsg) {      &Apache::lonxml::debug('Getting message');
   $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";      ($showbutton,$bgcolor,$message,$previousmsg) =
  }   &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
       }        $target);
     }      if ($target eq 'tex') {
     my $tries = $Apache::lonhomework::history{"resource.$id.tries"};   $message='\vskip 2 mm '.$message.' ';
     my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");      } else {
     &Apache::lonxml::debug("got maxtries of :$maxtries:");   $message="<td bgcolor=\"$bgcolor\">$message</td>";
     if ( $tries eq '' ) { $tries = '0'; }   if ($previousmsg) {
     if ( $maxtries eq '' ) { $maxtries = '2'; }       $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
     if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }    }
     if ( $showbutton ) {      }
       if ($target eq 'tex') {   }
   if ($ENV{'request.state'} ne "construct") {   my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
       $trystr = ' {\small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 0 mm ';   my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
   } else {   &Apache::lonxml::debug("got maxtries of :$maxtries:");
       $trystr = '\vskip 0 mm ';   #if tries are set to negative turn off the Tries/Button and messages
   }   if (defined($maxtries) && $maxtries < 0) { return ''; }
       } else {   if ( $tries eq '' ) { $tries = '0'; }
          $trystr = "<td>Tries $tries/$maxtries</td>";   if ( $maxtries eq '' ) { $maxtries = '2'; } 
       }   if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
     }   my $tries_text=&mt('Tries');
     if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}   if ( $Apache::lonhomework::type eq 'survey' ||
     if ( $showbutton ) {        $Apache::lonhomework::parsing_a_task) {
       if ($target ne 'tex') {      $tries_text=&mt('Submissions');
         $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';   }
       }   if ( $showbutton ) {
     }      if ($target eq 'tex') {
     if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {   if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
       #last submissions was after due date      $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
       if ($target eq 'tex') {   } else {
   $latemessage=' The last submission was after the Due Date ';      $trystr = '\vskip 0 mm ';
       } else {   }
         $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";      } else {
       }   $trystr = "<td><nobr>".$tries_text." $tries";
     }   if ($Apache::lonhomework::parsing_a_task) {
   }   } elsif($env{'request.state'} ne 'construct') {
   my $output= $previousmsg.$latemessage.$message.$trystr;      $trystr.="/$maxtries";
   if ($output =~ /^\s*$/) {   } else {
     return $button;      if (defined($Apache::inputtags::params{'maxtries'})) {
   } else {   $trystr.="/".$Apache::inputtags::params{'maxtries'};
     if ($target eq 'tex') {      }
       return $button.' \vskip 0 mm '.$output.' ';   }
    $trystr.="</nobr></td>";
       }
    }
    if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
    if ( $showbutton ) { 
       if ($target ne 'tex') {
    $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
       }
    }
    if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
       #last submissions was after due date
       $latemessage=&mt(' The last submission was after the Due Date ');;
       if ($target eq 'web') {
    $latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
       }
    }
       }
       my $output= $previousmsg.$latemessage.$message.$trystr;
       if ($output =~ /^\s*$/) {
    return $button;
     } else {      } else {
       return $button.'<table><tr>'.$output.'</tr></table>';   if ($target eq 'tex') {
       return $button.' \vskip 0 mm '.$output.' ';
    } else {
       return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
    }
     }      }
   }  
 }  }
 1;  1;
 __END__  __END__
Removed from v.1.83  
changed lines
  Added in v.1.190

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.