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Diff for /loncom/homework/inputtags.pm between versions 1.1 and 1.148

version 1.1, 2000/07/25 21:27:30 version 1.148, 2004/07/15 19:44:54
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # input  definitons  # input  definitons
   #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (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/
   
 package Apache::inputtags;  package Apache::inputtags;
   use HTML::Entities();
 use strict;  use strict;
   use Apache::loncommon;
   use Apache::lonlocal;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::inputtags',('textline','answergroup'));      &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
 }  }
   
   
 sub initialize_inputtags {  sub initialize_inputtags {
   $Apache::inputtags::curvalue=0;      # list of current input ids
       @Apache::inputtags::input=();
       # list of all input ids seen in this problem
       @Apache::inputtags::inputlist=();
       # list of all current response ids
       @Apache::inputtags::response=();
       # list of all response ids seen in this problem
       @Apache::inputtags::responselist=();
       # list of whether or not a specific response was previously used
       @Apache::inputtags::previous=();
       # submission it was used in
       @Apache::inputtags::previous_version=();
       # id of current part, 0 means that no part is current 
       # (inside <problem> only
       $Apache::inputtags::part='';
       # list of all part ids seen
       @Apache::inputtags::partlist=();
       # 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=();
       # just used to note whether we have seen a response that isn't in a part
       $Apache::inputtags::response_with_no_part=0;
       # storage location so the begin <*response> tag can generate the correct
       # answer string for display by the <textline />
       %Apache::inputtags::answertxt=();
   }
   
   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));
       }
   }
   
   sub start_input {
       my ($parstack,$safeeval)=@_;
       my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
       if ($id eq '') { $id = $Apache::lonxml::curdepth; }
       push (@Apache::inputtags::input,$id);
       push (@Apache::inputtags::inputlist,$id);
       return $id;
   }
   
   sub end_input {
       pop @Apache::inputtags::input;
       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 {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result = "";
       my $id = &start_input($parstack,$safeeval);
       my $resid=$Apache::inputtags::response[-1];
       if ($target eq 'web') {
    $Apache::lonxml::evaluate--;
    if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
       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);
       if ( $cols eq '') { $cols = 80; }
       my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
       if ( $rows eq '') { $rows = 16; }
       my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
       $result='';
       if ($addchars) {
    $result.=&addchars('HWVAL_'.$resid,$addchars);
       }
       push @Apache::lonxml::htmlareafields,'HWVAL_'.$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",$parser);
       }
    } else {
       #right or wrong don't show it
       #$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);
    $result.=&Apache::edit::text_arg
       ('Click-On Texts (comma sep):','addchars',$token,10);
    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,
        $safeeval,'rows','cols',
        'addchars');
    if ($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 ';
    }
       }
       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;
 }  }
   
 sub start_textline {  sub start_textline {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   my $result = "";      my $result = "";
   $Apache::inputtags::curvalue++;      if ($target eq 'web') {
   if ($target eq 'web') {   $Apache::lonxml::evaluate--;
     $result= '<input name="HWVAL'.$Apache::inputtags::curvalue.'" value="">';   my $partid=$Apache::inputtags::part;
   }   my $id=$Apache::inputtags::response[-1];
   return $result;   if ($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') {
    my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
    $result='';
    if ($addchars) {
       $result.=&addchars('HWVAL_'.$id,$addchars);
    }
    $result.= '<input type="text" name="HWVAL_'.$id.'" value="'.
       $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
       }
    } else {
       #right or wrong don't show what was last typed in.
       $result='<i>'.$Apache::inputtags::answertxt{$id}.'</i>';
       #$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)."</td></tr>";
    $result.=&Apache::edit::end_table;
       } elsif ($target eq 'modified') {
    my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size','addchars');
    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;
 }  }
   
 sub end_textline {  sub end_textline {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;      my ($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 $result = "";
       if ($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;
       }
       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 "";
   }
   
   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 finalizeawards {
       my ($awardref,$msgref)=@_;
       my $result=undef;
       my $award;
       my $msg;
       if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
       if ($result eq '' ) {
    my $blankcount;
    foreach $award (@$awardref) {
       if ($award eq '') {
    $result='MISSING_ANSWER';
    $blankcount++;
       }
    }
    if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
       }
       if (defined($result)) { return ($result,$msg); }
       foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
          'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
          'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
          'UNIT_FAIL', 'NO_UNIT',
          'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
          'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT', 
          'MISORDERED_RANK', 'INVALID_FILETYPE',
          'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
          'APPROX_ANS', 'EXACT_ANS') {
    ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
    if (defined($result)) { return ($result,$msg); }
       }
       return ('ERROR',undef);
 }  }
   
 sub start_answergroup {  sub decideoutput {
       my ($award,$awardmsg,$solved,$previous,$target)=@_;
       my $message='';
       my $button=0;
       my $previousmsg;
       my $bgcolor='orange';
       my $added_computer_text=0;
       my %possiblecolors =
    ( 'correct' => '#aaffaa',
     'charged_try' => '#ffaaaa',
     'not_charged_try' => '#ffffaa',
     'no_message' => '#fffff',
     );
       if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
       
       if      ($solved =~ /^correct/) {
    if ($award eq 'ASSIGNED_SCORE') {
       $message = &mt("A score has been assigned.");
    } else {
       if ($target eq 'tex') {
    $message = '\textbf{'.&mt('You are correct.').'}';
       } else {
    $message = "<b>".&mt('You are correct.')."</b>";
       }
       $message.=" ".&mt("Computer's answer now shown.");
       $added_computer_text=1;
       unless ($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'):'');
       }
    }
    $bgcolor=$possiblecolors{'correct'};
    $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.=" ".&mt("Computer's answer now shown.");
       $added_computer_text=1;
       unless ($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 '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('The filetype extension of the file you uploaded 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') {
    $message = &mt('Unable to interpret units. Computer reads units as "[_1]"','<tt>'.$awardmsg.'</tt>.');
    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') {
    $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units ','<tt>'.$awardmsg.'</tt>.');
    if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');} 
    $bgcolor=$possiblecolors{'not_charged_try'};
    $button=1;
       } elsif ($award eq 'UNIT_NOTNEEDED') {
    $message = &mt('Only a number required. Computer reads units of "[_1]"','<tt>'.$awardmsg.'</tt>.');
    $bgcolor=$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 '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 '') {
    $bgcolor=$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) {
    $message.=" ".&mt("Computer's answer now shown.");
    $added_computer_text=1;
       }
       return ($button,$bgcolor,$message,$previousmsg);
 }  }
   
 sub end_answergroup {  sub removealldata {
   return '<input type="submit" value="Submit All Answers"';      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});
    }
       }
 }  }
   
   sub hidealldata {
       my ($id)=@_;
       foreach my $key (keys(%Apache::lonhomework::results)) {
    if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
       &Apache::lonxml::debug("Hidding $key");
       my $newkey=$key;
       $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
       $Apache::lonhomework::results{$newkey}=
    $Apache::lonhomework::results{$key};
       delete($Apache::lonhomework::results{$key});
    }
       }
   }
   
   sub setgradedata {
       my ($award,$msg,$id,$previously_used) = @_;
       # if the student already has it correct, don't modify the status
       if ($Apache::lonhomework::scantronmode && defined($ENV{'form.CODE'})) {
    $Apache::lonhomework::results{"resource.CODE"}=$ENV{'form.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') {
    #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') {
    $Apache::lonhomework::results{"resource.$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') {
    $Apache::lonhomework::results{"resource.$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;
   }
   
   sub grade {
       my ($target) = @_;
       my $id = $Apache::inputtags::part;
       my $response='';
       if ( defined $ENV{'form.submitted'}) {
    my (@awards,@msgs);
    foreach $response (@Apache::inputtags::response) {
       &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
       my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
       &Apache::lonxml::debug("keeping $value from $response for $id");
       push (@awards,$value);
       $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
       &Apache::lonxml::debug("got message $value from $response for $id");
       push (@msgs,$value);
    }
    my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
    my $previously_used;
    if ( $#Apache::inputtags::previous eq $#awards ) {
       my $match=0;
       my @matches;
       foreach my $versionar (@Apache::inputtags::previous_version) {
    foreach my $version (@$versionar) {
       $matches[$version]++;
    }
       }
       foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
       if ($match) {
    $previously_used = 'PREVIOUSLY_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);
       }
       return '';
   }
   
   sub gradestatus {
       my ($id,$target) = @_;
       my $showbutton = 1;
       my $bgcolor = '';
       my $message = '';
       my $latemessage = '';
       my $trystr='';
       my $button='';
       my $previousmsg='';
   
       my $status = $Apache::inputtags::status['-1'];
       &Apache::lonxml::debug("gradestatus has :$status:");
       if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
    $status ne 'INVALID_ACCESS') {  
    my $award = $Apache::lonhomework::history{"resource.$id.award"};
    my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
    my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
    my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
    &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
    if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
       &Apache::lonxml::debug('Getting message');
       ($showbutton,$bgcolor,$message,$previousmsg) =
    &decideoutput($award,$awardmsg,$solved,$previous,$target);
       if ($target eq 'tex') {
    $message='\vskip 2 mm '.$message.' ';
       } else {
    $message="<td bgcolor=\"$bgcolor\">$message</td>";
    if ($previousmsg) {
       $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
    }
       }
    }
    my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
    my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
    &Apache::lonxml::debug("got maxtries of :$maxtries:");
    #if tries are set to negative turn off the Tries/Button and messages
    if (defined($maxtries) && $maxtries < 0) { return ''; }
    if ( $tries eq '' ) { $tries = '0'; }
    if ( $maxtries eq '' ) { $maxtries = '2'; } 
    if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
    my $tries_text=&mt('Tries');
    if ( $Apache::lonhomework::type eq 'survey') { $tries_text=&mt('Submissions'); }
    if ( $showbutton ) {
       if ($target eq 'tex') {
    if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $ENV{'form.suppress_tries'} ne 'yes') {
       $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
    } else {
       $trystr = '\vskip 0 mm ';
    }
       } else {
    $trystr = "<td><nobr>".$tries_text." $tries";
    if($ENV{'request.state'} ne 'construct') {
       $trystr.="/$maxtries";
    } else {
       if (defined($Apache::inputtags::params{'maxtries'})) {
    $trystr.="/".$Apache::inputtags::params{'maxtries'};
       }
    }
    $trystr.="</nobr></td>";
       }
    }
    if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
    if ( $showbutton ) { 
       if ($target ne 'tex') {
    $button = '<input type="submit" name="submit" value="'.&mt('Submit Answer').'" />';
       }
    }
    if ($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 {
       return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
    }
       }
   }
 1;  1;
 __END__  __END__
     
Removed from v.1.1  
changed lines
  Added in v.1.148

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