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Diff for /loncom/homework/inputtags.pm between versions 1.42 and 1.113

version 1.42, 2001/08/06 18:00:34 version 1.113, 2003/08/28 12:46:31
Line 1 Line 1
 # The LON-CAPA input tags  # The LearningOnline Network with CAPA
   # input  definitons
 #  #
 # Input definitions.  # $Id$
 #  #
 # YEAR=2000  # Copyright Michigan State University Board of Trustees
 # 7/25,9/11,9/19,10/2,10/11,11/21,11/28,12/1,12/4,12/8,12/11 Guy Albertelli  #
 # 12/12 Guy Albertelli  # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 # 12/12 Gerd Kortemeyer  #
 # 12/12,12/15,12/21 Guy Albertelli  # LON-CAPA is free software; you can redistribute it and/or modify
 # YEAR=2001  # it under the terms of the GNU General Public License as published by
 # 1/4,1/5,1/6,1/10,1/15,1/24,2/19 Guy Albertelli  # the Free Software Foundation; either version 2 of the License, or
 # 8/6 Scott Harrison  # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
   # 2/19 Guy 
   
 package Apache::inputtags;  package Apache::inputtags;
   use HTML::Entities();
 use strict;  use strict;
   use Apache::loncommon;
   
 # ======================================================================= BEGIN  BEGIN {
 sub BEGIN {    &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
     &Apache::lonxml::register('Apache::inputtags',  
       ('textarea','textline','datasubmission'));  
 }  }
   
 # ======================================================= Initialize input tags  
 sub initialize_inputtags {  sub initialize_inputtags {
     # list of current input ids    # list of current input ids
     @Apache::inputtags::input = ();    @Apache::inputtags::input=();
     # list of all input ids seen in this problem    # list of all input ids seen in this problem
     @Apache::inputtags::inputlist = ();    @Apache::inputtags::inputlist=();
     # list of all current response ids    # list of all current response ids
     @Apache::inputtags::response = ();    @Apache::inputtags::response=();
     # list of all response ids seen in this problem    # list of all response ids seen in this problem
     @Apache::inputtags::responselist = ();    @Apache::inputtags::responselist=();
     # list of whether or not a specific response was previously used    # list of whether or not a specific response was previously used
     @Apache::inputtags::previous = ();    @Apache::inputtags::previous=();
     # id of current part, 0 means no part is current (inside <problem> only    # submission it was used in
     $Apache::inputtags::part = '';    @Apache::inputtags::previous_version=();
     # list of problem date statuses, the first element is for <problem>     # id of current part, 0 means that no part is current (inside <problem> only
     #if there is a second element it is for the current <part>    $Apache::inputtags::part='';
     @Apache::inputtags::status = ();    # list of all part ids seen
     #hash of defined params for the current response    @Apache::inputtags::partlist=();
     %Apache::inputtags::params = ();    # list of problem date statuses, the first element is for <problem>
     # if there is a second element it is for the current <part>
     @Apache::inputtags::status=();
     # hash of defined params for the current response
     %Apache::inputtags::params=();
     # list of all ids, for <import>, these get join()ed and prepended
     @Apache::inputtags::import=();
     # list of all import ids seen
     @Apache::inputtags::importlist=();
   }
   
   sub check_for_duplicate_ids {
       my %check;
       foreach my $id (@Apache::inputtags::partlist,
       @Apache::inputtags::responselist,
       @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));
       }
 }  }
   
 # ========================================== Start input (return scalar string)  
 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;
 }  }
   
 # =================================================================== End input  
 sub end_input {  sub end_input {
     pop @Apache::inputtags::input;    pop @Apache::inputtags::input;
     return '';    return '';
 }  }
   
 # ====================================== Start text area (return scalar string)  sub start_textfield {
 sub start_textarea {    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;    my $result = "";
     my $result = "";    my $id = &start_input($parstack,$safeeval);
     my $id = &start_input($parstack,$safeeval);    my $resid=$Apache::inputtags::response[-1];
     if ($target eq 'web') {    if ($target eq 'web') {
  my $oldresponse = $Apache::lonhomework::history{'resource.'.      $Apache::lonxml::evaluate--;
   $Apache::inputtags::part.'.'.      if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
   $Apache::inputtags::response['-1'].'.submission'};   my $partid=$Apache::inputtags::part;
    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 = 10; }
  $result= '<textarea name="HWVAL'.$Apache::inputtags::response['-1'].   $result= '<textarea name="HWVAL_'.$resid.'" '.
     '" '."rows=\"$rows\" cols=\"$cols\">".$oldresponse;      "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
  if ($oldresponse ne '') {   if ($oldresponse ne '') {
     #get rid of any startup text if the user has already responded      #get rid of any startup text if the user has already responded
     &Apache::lonxml::get_all_text("/textarea",$$parser[$#$parser]);      &Apache::lonxml::get_all_text("/textfield",$parser);
  }   }
       } else {
    #right or wrong don't show it
    #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
    $result='';
    #get rid of any startup text
    &Apache::lonxml::get_all_text("/textfield",$parser);
       }
     } elsif ($target eq 'grade') {
       my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
       if ($seedtext eq $ENV{'form.HWVAL_'.$resid}) {
         # if the seed text is still there it wasn't a real submission
         $ENV{'form.HWVAL_'.$resid}='';
       }
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token);
       $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
       $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
       my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
       $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,
    $safeeval,'rows','cols');
       if ($constructtag) {
         $result = &Apache::edit::rebuild_tag($token);
       } else {
         $result=$token->[4];
     }      }
     return $result;      my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
       $result.=&Apache::edit::modifiedfield();
     } elsif ($target eq 'tex') {
         my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
         my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
         if ($$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 ';
         }
     }
     return $result;
   }
   
   sub end_textfield {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;
     if ($target eq 'web') {
       $Apache::lonxml::evaluate++;
       if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
         return "</textarea>";
       }
     } elsif ($target eq 'edit') {
       $result=&Apache::edit::end_table();
     }
     &end_input;
     return $result;
 }  }
   
 # ======================================== End text area (return scalar string)  sub start_textline {
 sub end_textarea {    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;    my $result = "";
     if ($target eq 'web') {    if ($target eq 'web') {
  return "</textarea>";      $Apache::lonxml::evaluate--;
     }       my $partid=$Apache::inputtags::part;
     &end_input;      my $id=$Apache::inputtags::response[-1];
     return '';      if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
         my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
         my $maxlength;
         if ($size eq '') { $size=20; } else {
    if ($size < 20) { $maxlength=$size; }
         }
         my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
         if ($Apache::lonhomework::type ne 'exam') {
           $result= '<input type="text" name="HWVAL_'.$id.'" value="'.
       $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
         }
       } else {
         #right or wrong don't show what was last typed in.
         #$result='<i>'.$oldresponse.'</i>';
         $result='';
       }
     } elsif ($target eq 'edit') {
       $result=&Apache::edit::tag_start($target,$token);
       $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
       $result.=&Apache::edit::end_table;
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
       if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     } elsif ($target eq 'tex' and $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}';
     }
     return $result;
 }  }
   
 # ====================================== Start text line (return scalar string)  sub end_textline {
 sub start_textline {    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
     elsif ($target eq 'edit') { return ('','no'); }
     return "";
   }
   
   sub start_hiddenline {
     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') {
  my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);   $Apache::lonxml::evaluate--;
  if ($size eq '') { $size=20; }   if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
  my $oldresponse = $Apache::lonhomework::history{'resource.'.      my $partid=$Apache::inputtags::part;
   $Apache::inputtags::part.'.'.      my $id=$Apache::inputtags::response[-1];
   $Apache::inputtags::response['-1'].'.submission'};      my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
  $result = '<input type="text" name="HWVAL'.      if ($Apache::lonhomework::type ne 'exam') {
           $Apache::inputtags::response['-1'].   $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
   '" value="'.$oldresponse.'" size="'.$size.'" />';      $oldresponse.'" />';
     }      }
     if ($target eq 'edit') {   }
  $result .= &Apache::edit::tag_start($target,$token,      } elsif ($target eq 'edit') {
  &Apache::lonxml::description($token));   $result=&Apache::edit::tag_start($target,$token);
  $result .= &Apache::edit::text_arg('Size:','size',$token,'5').   $result.=&Apache::edit::end_table;
            '</td></tr>';  
  $result .= &Apache::edit::end_table;  
     }  
     if ($target eq 'modified') {  
  my $constructtag = &Apache::edit::get_new_args($token,$parstack,  
        $safeeval,'size');  
  if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }  
     }      }
     return $result;      return $result;
 }  }
   
 # =============================================================== End text line  sub end_hiddenline {
 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 'edit') { return ('','no'); }    elsif ($target eq 'edit') { return ('','no'); }
     return "";    return "";
 }  }
   
 # ======================================================= Start data submission  sub finalizeawards {
 sub start_datasubmission {    my $result='';
     return '';    my $award;
     if ($#_ == '-1') { $result = "NO_RESPONSE"; }
     if ($result eq '' ) {
       my $blankcount;
       foreach $award (@_) {
         if ($award eq '') {
    $result='MISSING_ANSWER';
    $blankcount++;
         }
       }
       if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
     }
     if ($result eq '' ) {
       foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
     }
     if ($result eq '' ) {
       foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
     }
     if ($result eq '' ) {
       foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
     }
     if ($result eq '' ) {
       foreach $award (@_) { if ($award eq 'TOO_LONG') {$result='TOO_LONG'; last;}}
     }
     if ($result eq '' ) {
       foreach $award (@_) { 
         if ($award eq 'UNIT_FAIL' ||
     $award eq 'NO_UNIT' ||
     $award eq 'UNIT_NOTNEEDED') {
    $result=$award; last;
         }
       }
     }
     if ($result eq '' ) {
       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 'ASSIGNED_SCORE') {$result=$award; last;} }
     }
     if ($result eq '' ) {
       foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
     }
     if ($result eq '' ) { $result='EXACT_ANS'; }
     return $result
 }  }
   
 # ========================================================= End data submission  sub decideoutput {
 sub end_datasubmission {    my ($award,$solved,$previous,$target)=@_;
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;    my $message='';
     if ( $target == 'web' ) {    my $button=0;
  return '<input type="submit" name="submit" value="Submit All Data" />';    my $previousmsg;
     my $bgcolor='orange';
     my %possiblecolors =
         ( 'correct' => '#aaffaa',
    'charged_try' => '#ffaaaa',
    'not_charged_try' => '#ffffaa',
    'no_message' => '#fffff',
         );
     if ($previous) { $previousmsg='You have entered that answer before'; }
   
     if      ($solved =~ /^correct/) {
         if ($award eq 'ASSIGNED_SCORE') {
     $message = "A score has been assigned.";
         } else {
     if ($target eq 'tex') {
         $message = '\textbf{You are correct}.';
     } else {
         $message = "<b>You are correct.</b>";
     }
             unless ($ENV{'course.'.
      $ENV{'request.course.id'}.
      '.disable_receipt_display'} eq 'yes') { 
         $message.=(($target eq 'web')?'<br />':' ').
     'Your receipt is '.&Apache::lonnet::receipt().
          (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
     }
         }
         $bgcolor=$possiblecolors{'correct'};
         $button=0;
         $previousmsg='';
     } elsif ($solved =~ /^excused/) {
         if ($target eq 'tex') {
     $message = ' \textbf{You are excused from the problem.} ';
         } else {
     $message = "<b>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 = "Incorrect";
     $bgcolor=$possiblecolors{'charged_try'};
     $button=1;
         } else {
     $message = "<b>You are correct.</b>";
             unless ($ENV{'course.'.
      $ENV{'request.course.id'}.
      '.disable_receipt_display'} eq 'yes') { 
         $message.=(($target eq 'web')?'<br />':' ').
     'Your receipt is '.&Apache::lonnet::receipt().
          (($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 'MISSING_ANSWER') {
         $message = 'Some parts were not submitted';
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button = 1;
     } elsif ($award eq 'ERROR') {
         $message = 'An error occured while grading your answer.';
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button = 1;
     } elsif ($award eq 'TOO_LONG') {
         $message = "The submitted answer was too long.";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'WANTED_NUMERIC') {
         $message = "This question expects a numeric answer";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($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').'.';
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'INVALID_FILETYPE') {
         $message = 'The filetype extension of the file you uploaded is not allowed.';
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'SIG_FAIL') {
         $message = "Please adjust significant figures.";# you provided %s significant figures";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'UNIT_FAIL') {
         $message = "Units incorrect. ";
         if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} #Computer reads units as %s";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'UNIT_NOTNEEDED') {
         $message = "Only a number required.";# Computer reads units of %s";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'NO_UNIT') {
         $message = "Units required".
     &Apache::loncommon::help_open_topic('Physical_Units');
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'BAD_FORMULA') {
         $message = "Unable to understand formula";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'INCORRECT') {
         $message = "Incorrect";
         $bgcolor=$possiblecolors{'charged_try'};
         $button=1;
     } elsif ($award eq 'SUBMITTED') {
         $message = "Your submission has been recorded.";
         $bgcolor=$possiblecolors{'correct'};
         $button=1;
     } elsif ($award eq 'DRAFT') {
         $message = "A draft copy has been saved.";
         $bgcolor=$possiblecolors{'not_charged_try'};
         $button=1;
     } elsif ($award eq 'ASSIGNED_SCORE') {
         $message = "A score has been assigned.";
         $bgcolor=$possiblecolors{'correct'};
         $button=0;
     } else {
         $message = "Unknown message: $award";
         $button=1;
     }
     if (lc($Apache::lonhomework::problemstatus) eq 'no') {
         $message = "Answer Submitted";
         $bgcolor=$possiblecolors{'correct'};
         $button=1;
     }
     return ($button,$bgcolor,$message,$previousmsg);
   }
   
   sub removealldata {
       my ($id)=@_;
       foreach my $key (keys(%Apache::lonhomework::results)) {
    if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
       &Apache::lonxml::debug("Removing $key");
       delete($Apache::lonhomework::results{$key});
    }
     }      }
     return '';  
 }  }
   
 # ============================================================= Finalize awards  sub setgradedata {
 sub finalizeawards {    my ($award,$id,$previously_used) = @_;
     my $result='';    # if the student already has it correct, don't modify the status
     my $award;    if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
     if ($#_ == '-1') { $result = "NO_RESPONSE"; }        $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
     if ($result eq '' ) {      $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
  foreach $award (@_) { if ($award eq '') {$result='MISSING_ANSWER';      return '';
  last;}}    } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
     }         /^correct/ || $Apache::lonhomework::scantronmode ||
     if ($result eq '' ) {      lc($Apache::lonhomework::problemstatus) eq 'no') {
  foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}      #handle assignment of tries and solved status
     }      my $solvemsg;
     if ($result eq '' ) {      if ($Apache::lonhomework::scantronmode) {
  foreach $award (@_) { if ($award eq 'NO_RESPONSE') {   $solvemsg='correct_by_scantron';
     $result='NO_RESPONSE'; last;} }      } else {
     }   $solvemsg='correct_by_student';
     if ($result eq '' ) {  
  foreach $award (@_) {   
     if ($award eq 'UNIT_FAIL' ||  
  $award eq 'NO_UNIT' ||  
  $award eq 'UNIT_NOTNEEDED') {  
  $result=$award; last;  
     }  
  }  
     }  
     if ($result eq '' ) {  
  foreach $award (@_) {   
     if ($award eq 'WANTED_NUMERIC' ||   
  $award eq 'BAD_FORMULA') {$result=$award; last;}  
  }  
     }      }
     if ($result eq '' ) {      if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
  foreach $award (@_) { if ($award eq 'SIG_FAIL') {        $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
     $result=$award; last;} }  
     }  
     if ($result eq '' ) {  
  foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$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'; }      if ( $award eq 'ASSIGNED_SCORE') {
     return $result;   $Apache::lonhomework::results{"resource.$id.tries"} =
 }      $Apache::lonhomework::history{"resource.$id.tries"} + 1;
    $Apache::lonhomework::results{"resource.$id.solved"} =
 # ====================================== Decide output (return 3 element array)      $solvemsg;
 sub decideoutput {   my $numawards=scalar(@Apache::inputtags::response);
     my ($award,$solved,$previous)=@_;   $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
     my $message='';   foreach my $res (@Apache::inputtags::response) {
     my $button=0;      $Apache::lonhomework::results{"resource.$id.awarded"}+=
     my $previousmsg;         $Apache::lonhomework::results{"resource.$id.$res.awarded"};
        }
     if ($previous) { $previousmsg='You have entered that answer before'; }   if ($numawards > 0) {
           $Apache::lonhomework::results{"resource.$id.awarded"}/=
     if      ($solved =~ /^correct/) {   $numawards;
  $message = "<b>You are correct.</b> Your receipt is ".   }
     &Apache::lonnet::receipt;      } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
  $button=0;        $Apache::lonhomework::results{"resource.$id.tries"} =
  $previousmsg='';   $Apache::lonhomework::history{"resource.$id.tries"} + 1;
     } elsif ($solved =~ /^excused/) {        $Apache::lonhomework::results{"resource.$id.solved"} =
  $message = "<b>You are excused from the problem.</b>";   $solvemsg;
  $button=0;        $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
  $previousmsg='';      } elsif ( $award eq 'INCORRECT' ) {
     } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {        $Apache::lonhomework::results{"resource.$id.tries"} =
  if ($solved =~ /^incorrect/ || $solved eq '') {   $Apache::lonhomework::history{"resource.$id.tries"} + 1;
     $message = "Incorrect";        $Apache::lonhomework::results{"resource.$id.solved"} =
     $button=1;   'incorrect_attempted'
  } else {      } elsif ( $award eq 'SUBMITTED' ) {
     $message = "<b>You are correct.</b> Your receipt is ".        $Apache::lonhomework::results{"resource.$id.tries"} =
  &Apache::lonnet::receipt;   $Apache::lonhomework::history{"resource.$id.tries"} + 1;
     $button=0;        $Apache::lonhomework::results{"resource.$id.solved"} =
     $previousmsg='';   'ungraded_attempted';
  }      } elsif ( $award eq 'DRAFT' ) {
     } elsif ($award eq 'NO_RESPONSE') {        $Apache::lonhomework::results{"resource.$id.solved"} = '';
  $message = '';      } elsif ( $award eq 'NO_RESPONSE' ) {
  $button=1;   #no real response so delete any data that got stored
     } elsif ($award eq 'MISSING_ANSWER') {   &removealldata($id);
  $message = 'Some parts were not submitted';   return '';
  $button = 1;  
     } elsif ($award eq 'WANTED_NUMERIC') {  
  $message = "This question expects a numeric answer";  
  $button=1;  
     } elsif ($award eq 'SIG_FAIL') {  
  $message = "Please adjust significant figures.";# you provided %s significant figures";  
  $button=1;  
     } elsif ($award eq 'UNIT_FAIL') {  
  $message = "Units incorrect."; #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";  
  $button=1;  
     } elsif ($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;  
     } else {      } else {
  $message = "Unknown message: $award";        $Apache::lonhomework::results{"resource.$id.solved"} =
  $button=1;   'incorrect_attempted';
         if (lc($Apache::lonhomework::problemstatus) eq 'no') {
     $Apache::lonhomework::results{"resource.$id.tries"} =
         $Apache::lonhomework::history{"resource.$id.tries"} + 1;
         }
     }      }
     return ($button,$message,$previousmsg);  
 }  
   
 # ============================================================== Set grade data      # check if this was a previous submission if it was delete the
 sub setgradedata {      # unneeded data and update the previously_used attribute
     my ($award,$id,$previously_used) = @_;      if ( $previously_used eq 'PREVIOUSLY_USED') {
     # if the student already has it correct, don't modify the status   if (lc($Apache::lonhomework::problemstatus) ne 'no') {
     if ( $Apache::lonhomework::history{"resource.$id.solved"} !~ /^correct/ ) {  
  #handle assignment of tries and solved status  
  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 'NO_RESPONSE' ) {  
     return '';  
  } else {  
     $Apache::lonhomework::results{"resource.$id.solved"} =  
  'incorrect_attempted';  
  }  
   
  # check if this was a previous submission if it was delete the  
  # unneeded data and update the previously_used attribute  
  if ( $previously_used eq 'PREVIOUSLY_USED') {  
     delete($Apache::lonhomework::results{"resource.$id.tries"});      delete($Apache::lonhomework::results{"resource.$id.tries"});
     $Apache::lonhomework::results{"resource.$id.previous"} = '1';      $Apache::lonhomework::results{"resource.$id.previous"} = '1';
  } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {  
     #delete all data as they student didn't do anything  
     foreach my $key (keys(%Apache::lonhomework::results)) {  
  if ($key =~ /^resource\.$id\./) {  
     &Apache::lonxml::debug("Removing $key");  
     delete($Apache::lonhomework::results{$key});  
  }  
     }  
     #and since they didn't do anything we were never here  
     return '';  
  } else {  
     $Apache::lonhomework::results{"resource.$id.previous"} = '0';  
  }   }
       } 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';
     }      }
     $Apache::lonhomework::results{"resource.$id.award"} = $award;    } 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;
 }  }
   
 # ======================================================================= Grade  
 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 = ();
  foreach $response (@Apache::inputtags::responselist) {      foreach $response (@Apache::inputtags::response) {
     &Apache::lonxml::debug("looking for response.$id.$response.".        &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
    "awarddetail");        my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
     my $value=$Apache::lonhomework::results{"resource.$id.$response.".        &Apache::lonxml::debug("keeping $value from $response for $id");
     "awarddetail"};        push (@awards,$value);
     if ( $value ne '' ) {      }
  &Apache::lonxml::debug("keeping $value from $response for".      my $finalaward = &finalizeawards(@awards);
        " $id");      my $previously_used;
  push (@awards,$value);      if ( $#Apache::inputtags::previous eq $#awards ) {
     } else {   my $match=0;
  &Apache::lonxml::debug("skipping $value from $response for".   my @matches;
        " $id");   foreach my $versionar (@Apache::inputtags::previous_version) {
       foreach my $version (@$versionar) {
    $matches[$version]++;
     }      }
  }   }
  my $finalaward = &finalizeawards(@awards);   foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
  my $previously_used;   if ($match) {
  if ( $#Apache::inputtags::previous eq $#awards ) {  
     $previously_used = 'PREVIOUSLY_LAST';      $previously_used = 'PREVIOUSLY_LAST';
     foreach my $value (@Apache::inputtags::previous) {      foreach my $value (@Apache::inputtags::previous) {
  if ($value eq 'PREVIOUSLY_USED' ) {   if ($value eq 'PREVIOUSLY_USED' ) {
Line 339  sub grade { Line 594  sub grade {
  }   }
     }      }
  }   }
  &Apache::lonxml::debug("final award $finalaward, $previously_used");  
  &setgradedata($finalaward,$id,$previously_used);  
     }      }
     return '';      &Apache::lonxml::debug("final award $finalaward, $previously_used");
       &setgradedata($finalaward,$id,$previously_used);
     }
     return '';
 }  }
   
 # ========================================= Grade status (return scalar string)  
 sub gradestatus {  sub gradestatus {
     my ($id) = @_;    my ($id,$target) = @_;
     my $showbutton = 1;    my $showbutton = 1;
     my $message = '';    my $bgcolor = '';
     my $trystr = '';    my $message = '';
     my $button = '';    my $latemessage = '';
     my $previousmsg = '';    my $trystr='';
         my $button='';
     my $status = $Apache::inputtags::status['-1'];    my $previousmsg='';
     &Apache::lonxml::debug("gradestatus has :$status:");  
     if ( $status ne 'CLOSED' ) {      my $status = $Apache::inputtags::status['-1'];
  my $award = $Apache::lonhomework::history{"resource.$id.award"};    &Apache::lonxml::debug("gradestatus has :$status:");
  my $solved = $Apache::lonhomework::history{"resource.$id.solved"};    if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE') {  
  my $previous = $Apache::lonhomework::history{"resource.$id.previous"};      my $award = $Apache::lonhomework::history{"resource.$id.award"};
  &Apache::lonxml::debug("Found Award |$award|$solved|");      my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
  if ( $award ne '' ) {      my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
     &Apache::lonxml::debug('Getting message');      &Apache::lonxml::debug("Found Award |$award|$solved|");
     ($showbutton,$message,$previousmsg) =      if ( $award ne '' || $solved ne '') {
  &decideoutput($award,$solved,$previous);        &Apache::lonxml::debug('Getting message');
     $message = "<td bgcolor=\"#aaffaa\">$message</td>";        ($showbutton,$bgcolor,$message,$previousmsg) =
     if ($previousmsg) {   &decideoutput($award,$solved,$previous,$target);
  $previousmsg = "<td bgcolor=\"#ffaaaa\">$previousmsg</td>";        if ($target eq 'tex') {
     }   $message=' '.$message.' ';
  }        } else {
  my $tries = $Apache::lonhomework::history{"resource.$id.tries"};   $message="<td bgcolor=\"$bgcolor\">$message</td>";
  my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");   if ($previousmsg) {
  &Apache::lonxml::debug("got maxtries of :$maxtries:");    $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
  if ( $tries eq '' ) { $tries = '0'; }   }
  if ( $maxtries eq '' ) { $maxtries = '2'; }         }
  if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }       }
  if ( $showbutton ) {      my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
     $trystr = "<td>Tries $tries/$maxtries</td>";      my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
  }      &Apache::lonxml::debug("got maxtries of :$maxtries:");
  if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {      if ( $tries eq '' ) { $tries = '0'; }
     $showbutton = 0;}      if ( $maxtries eq '' ) { $maxtries = '2'; } 
  if ( $showbutton ) {       if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
     $button = '<br /><input type="submit" name="submit" value='.      if ( $showbutton ) {
       '"Submit All Answers" />';        if ($target eq 'tex') {
  }    if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam') {
     }        $trystr = ' {\vskip 1 mm \small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
     my $output= $previousmsg.$message.$trystr;    } else {
     if ($output =~ /^\s*$/) {        $trystr = '\vskip 0 mm ';
  return $button;    }
         } else {
            $trystr = "<td>Tries $tries/$maxtries</td>";
         }
       }
       if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
       if ( $showbutton ) { 
         if ($target ne 'tex') {
           $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
         }
       }
       if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
         #last submissions was after due date
         if ($target eq 'tex') {
     $latemessage=' The last submission was after the Due Date ';
         } else {
           $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
         }
       }
     }
     my $output= $previousmsg.$latemessage.$message.$trystr;
     if ($output =~ /^\s*$/) {
       return $button;
     } else {
       if ($target eq 'tex') {
         return $button.' \vskip 0 mm '.$output.' ';
     } else {      } else {
  return $button.'<table><tr>'.$previousmsg.$message.$trystr.        return $button.'<table><tr>'.$output.'</tr></table>';
        '</tr></table>';  
     }      }
     }
 }  }
   
 1;  1;
   
 __END__  __END__
    
Removed from v.1.42  
changed lines
  Added in v.1.113

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