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Diff for /loncom/homework/lonhomework.pm between versions 1.171 and 1.190

version 1.171, 2004/03/09 20:37:58 version 1.190, 2004/12/22 22:05:40
Line 52  use Apache::Constants qw(:common); Line 52  use Apache::Constants qw(:common);
 use HTML::Entities();  use HTML::Entities();
 use Apache::loncommon();  use Apache::loncommon();
 use Apache::lonlocal;  use Apache::lonlocal;
 #use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
   use Apache::lonnet();
   
   # FIXME - improve commenting
   
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register_insert();      &Apache::lonxml::register_insert();
 }  }
   
   
   #
   # Decides what targets to render for.
   # Implicit inputs:
   #   Various session environment variables:
   #      request.state -  published  - is a /res/ resource
   #                       uploaded   - is a /uploaded/ resource
   #                       contruct   - is a /priv/ resource
   #      form.grade_target - a form parameter requesting a specific target
 sub get_target {  sub get_target {
       &Apache::lonxml::debug("request.state = $ENV{'request.state'}");
       if( defined($ENV{'form.grade_target'})) {
    &Apache::lonxml::debug("form.grade_target= $ENV{'form.grade_target'}");
       } else {
    &Apache::lonxml::debug("form.grade_target <undefined>");
       }
     if (($ENV{'request.state'} eq "published") ||      if (($ENV{'request.state'} eq "published") ||
  ($ENV{'request.state'} eq "uploaded")) {   ($ENV{'request.state'} eq "uploaded")) {
  if ( defined($ENV{'form.grade_target'}  )    if ( defined($ENV{'form.grade_target'}  ) 
Line 96  sub get_target { Line 115  sub get_target {
  } else {   } else {
     return ('web','answer');      return ('web','answer');
  }   }
     } elsif ( $ENV{'form.problemmode'} eq &mt('Edit') ) {      } elsif ( $ENV{'form.problemmode'} eq &mt('Edit') ||
         $ENV{'form.problemmode'} ee 'Edit') {
  if ( $ENV{'form.submitted'} eq 'edit' ) {   if ( $ENV{'form.submitted'} eq 'edit' ) {
     if ( $ENV{'form.submit'} eq &mt('Submit Changes and View') ) {      if ( $ENV{'form.submit'} eq &mt('Submit Changes and View') ) {
  return ('modified','web','answer');   return ('modified','web','answer');
Line 207  sub check_access { Line 227  sub check_access {
  if ( ! ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&   if ( ! ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&
  lc($Apache::lonhomework::problemstatus) eq 'no')) {   lc($Apache::lonhomework::problemstatus) eq 'no')) {
     return ('CANNOT_ANSWER',      return ('CANNOT_ANSWER',
     &mt('is in this state by royal decree.'));      &mt('is in this state due to author settings.'));
  }   }
     } else {      } else {
  return ($ENV{'form.problemstate'},   return ($ENV{'form.problemstate'},
  &mt('is in this state by royal decree.'));   &mt('is in this state due to author settings.'));
     }      }
  }   }
  &Apache::lonxml::debug("in construction ignoring dates");   &Apache::lonxml::debug("in construction ignoring dates");
Line 292  sub check_access { Line 312  sub check_access {
     $status = 'CANNOT_ANSWER';      $status = 'CANNOT_ANSWER';
  }   }
     }      }
       if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
    my $interval=&Apache::lonnet::EXT("resource.$id.interval");
    &Apache::lonxml::debug("looking for interval $interval");
    if ($interval) {
       my $first_access=&Apache::lonnet::get_first_access('map');
       &Apache::lonxml::debug("looking for accesstime $first_access");
       if (!$first_access) {
    $status='NOT_YET_VIEWED';
    $datemsg=' '.$interval.' seconds';
       } else {
    my $newdate=localtime($first_access+$interval);
    if (time > ($first_access+$interval)) {
       $status='CLOSED';
       $datemsg = &mt("was due on")." $newdate".&mt(", and answers will be available on")." $date";
    } else {
       $datemsg = &mt("is due at")." $newdate";
    }
       }
    }
       }
   #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&    #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
   #    (!$Apache::lonhomework::history{"resource.0.outtoken"})) {    #    (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
   #    return ('UNCHECKEDOUT','needs to be checked out');    #    return ('UNCHECKEDOUT','needs to be checked out');
Line 365  sub setuppermissions { Line 404  sub setuppermissions {
  $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.   $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.
                                                '/'.$ENV{'request.course.sec'});                                                 '/'.$ENV{'request.course.sec'});
     }      }
     $Apache::lonhomework::viewgrades = $viewgrades;      $Apache::lonhomework::viewgrades = $viewgrades; # File global variable...dirt.
       if ($Apache::lonhomework::browse eq 'F' && 
    $ENV{'form.devalidatecourseresdata'} eq 'on') {
    my (undef,$courseid) = &Apache::lonxml::whichuser();
    &Apache::lonnet::devalidatecourseresdata($ENV{"course.$courseid.num"},
         $ENV{"course.$courseid.domain"});
       }
     return ''      return ''
 }  }
   
Line 430  sub handle_save_or_undo { Line 475  sub handle_save_or_undo {
   
 sub analyze_header {  sub analyze_header {
     my ($request) = @_;      my ($request) = @_;
       my $bodytag='<body bgcolor="#ffffff">';
       if ($ENV{'environment.remote'} eq 'off') {
    $bodytag=&Apache::loncommon::bodytag();
       }
     my $result.='<html>      my $result.='<html>
             <head><title>'.&mt("Analyzing a problem").'</title></head>              <head><title>'.&mt("Analyzing a problem").'</title></head>
             <body bgcolor="#FFFFFF">'.&Apache::lonxml::message_location().'              '.$bodytag.&Apache::lonxml::message_location().'
             <form name="lonhomework" method="POST" action="'.              <form name="lonhomework" method="POST" action="'.
     $ENV{'request.uri'}.'">      &HTML::Entities::encode($ENV{'request.uri'},'<>&"').'">'.
       &Apache::structuretags::remember_problem_state().'
             <input type="submit" name="problemmode" value="'.&mt("EditXML").'" />              <input type="submit" name="problemmode" value="'.&mt("EditXML").'" />
             <input type="submit" name="problemmode" value="'.&mt('Edit').'" />              <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
             <hr />              <hr />
             <input type="submit" name="submit" value="'.&mt("View").'" />              <input type="submit" name="submit" value="'.&mt("View").'" />
             <hr />              <hr />
             '.&mt('List of possible answers').':  
             </form>';              </form>';
     &Apache::lonxml::add_messages(\$result);      &Apache::lonxml::add_messages(\$result);
     $request->print($result);      $request->print($result);
Line 465  sub analyze { Line 514  sub analyze {
     my %prog_state=      my %prog_state=
  &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),   &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
       &mt('Getting Problem Variants'),        &mt('Getting Problem Variants'),
       $ENV{'form.numtoanalyze'});        $ENV{'form.numtoanalyze'},
         'inline',undef);
     for(my $i=1;$i<$ENV{'form.numtoanalyze'}+1;$i++) {      for(my $i=1;$i<$ENV{'form.numtoanalyze'}+1;$i++) {
  &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,   &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
  &mt('last problem'));   &mt('last problem'));
    if (&Apache::loncommon::connection_aborted($request)) { return; }
  my $subresult=&Apache::lonnet::ssi($request->uri,   my $subresult=&Apache::lonnet::ssi($request->uri,
    ('grade_target' => 'analyze'),     ('grade_target' => 'analyze'),
    ('rndseed' => $i+$rndseed));     ('rndseed' => $i+$rndseed));
Line 490  sub analyze { Line 541  sub analyze {
     }      }
     &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,      &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
   &mt('Analyzing Results'));    &mt('Analyzing Results'));
       $request->print('<hr />'.&mt('List of possible answers').': ');
     foreach my $part (sort(keys(%allparts))) {      foreach my $part (sort(keys(%allparts))) {
  if (defined(@{ $overall{$part.'.answer'} })) {   if (defined(@{ $overall{$part.'.answer'} })) {
     my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] });      my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] });
     $request->print('<table><tr><td colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part.'</td></tr>');      $request->print('<table><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part.'</th></tr>');
     my %frequency;      my %frequency;
     foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) {      foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) {
  $frequency{join("\0",@{ $answer })}++;   $frequency{join("\0",@{ $answer })}++;
     }      }
     $request->print('<tr><td colspan="'.($num_cols).'">'.&mt('Answer').'</td><td>'.&mt('Frequency').'</td></tr>');      $request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'</th></tr>');
     foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {      foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
  $request->print('<tr><td align="right">'.   $request->print('<tr><td align="right">'.
  join('</td><td align="right">',split("\0",$answer)).   join('</td><td align="right">',split("\0",$answer)).
Line 545  sub editxmlmode { Line 597  sub editxmlmode {
     &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",      &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
     "Problem Editing Help").      "Problem Editing Help").
     '</td><td>'.      '</td><td>'.
        &Apache::loncommon::help_open_faq(5).         &Apache::loncommon::help_open_menu('',undef,undef,undef,5,'Authoring').
        &Apache::loncommon::help_open_bug('Authoring').'</td></tr></table>';                  '</td></tr></table>';
  if ($cols > 80) { $cols = 80; }   if ($cols > 80) { $cols = 80; }
  if ($cols < 70) { $cols = 70; }   if ($cols < 70) { $cols = 70; }
  if ($rows < 20) { $rows = 20; }   if ($rows < 20) { $rows = 20; }
  $result.='<html><body bgcolor="#FFFFFF">'.   my $bodytag='<body bgcolor="#ffffff">';
     &Apache::lonxml::message_location().'   if ($ENV{'environment.remote'} eq 'off') {
       $bodytag=&Apache::loncommon::bodytag();
    }
    $result.='<html>'.$bodytag.&Apache::lonxml::message_location().'
             <form name="lonhomework" method="POST" action="'.              <form name="lonhomework" method="POST" action="'.
     $ENV{'request.uri'}.'">      &HTML::Entities::encode($ENV{'request.uri'},'<>&"').'">'.
       &Apache::structuretags::remember_problem_state().'
             <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />              <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />
             <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />              <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
             <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />              <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
Line 564  sub editxmlmode { Line 620  sub editxmlmode {
             <hr />              <hr />
             ' . $xml_help . '              ' . $xml_help . '
             <textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.              <textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
     &HTML::Entities::encode($problem).'</textarea>      &HTML::Entities::encode($problem,'<>&"').'</textarea>
             </form></body></html>';              </form></body></html>';
  &Apache::lonxml::add_messages(\$result);   &Apache::lonxml::add_messages(\$result);
  $request->print($result);   $request->print($result);
Line 572  sub editxmlmode { Line 628  sub editxmlmode {
     return '';      return '';
 }  }
   
   #
   #    Render the page in whatever target desired.
   #
 sub renderpage {  sub renderpage {
     my ($request,$file) = @_;      my ($request,$file) = @_;
   
Line 580  sub renderpage { Line 639  sub renderpage {
     &Apache::lonxml::debug("Running targets ".join(':',@targets));      &Apache::lonxml::debug("Running targets ".join(':',@targets));
     my $overall_result;      my $overall_result;
     foreach my $target (@targets) {      foreach my $target (@targets) {
    # FIXME need to do something intelligent when a problem goes
           # from viewable to not viewable due to map conditions
    #&setuppermissions();
    #if (   $Apache::lonhomework::browse ne '2'
    #    && $Apache::lonhomework::browse ne 'F' ) {
    #    $request->print(" You most likely shouldn't see me.");
    #}
  #my $t0 = [&gettimeofday()];   #my $t0 = [&gettimeofday()];
  my $problem=&Apache::lonnet::getfile($file);   my $problem=&Apache::lonnet::getfile($file);
  if ($problem eq -1) {   if ($problem eq -1) {
Line 668  sub newproblem { Line 734  sub newproblem {
  copy($templatefilename,$dest);   copy($templatefilename,$dest);
  &renderpage($request,$dest);   &renderpage($request,$dest);
     } else {      } else {
  my $url=$request->uri;   my $url=&HTML::Entities::encode($request->uri,'<>&"');
  my $shownurl=$url;   my $shownurl=$url;
  $shownurl=~s-^/~-/priv/-;   $shownurl=~s-^/~-/priv/-;
  my $dest = &Apache::lonnet::filelocation("",$request->uri);   my $dest = &Apache::lonnet::filelocation("",$request->uri);
  my $errormsg;   my $errormsg;
Line 677  sub newproblem { Line 743  sub newproblem {
     $errormsg='<p><font color="red">'.&mt('You did not select a template.').'</font></p>'."\n";      $errormsg='<p><font color="red">'.&mt('You did not select a template.').'</font></p>'."\n";
  }   }
  my $instructions;   my $instructions;
  my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);   my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
    ($ENV{'environment.remote'} ne 'off'));
  if ($templatelist) { $instructions=&mt(", select a template from the pull-down menu below.").'<br />'.&mt("Then");}   if ($templatelist) { $instructions=&mt(", select a template from the pull-down menu below.").'<br />'.&mt("Then");}
  my %lt=&Apache::lonlocal::texthash( 'create' => 'Creating a new',   my %lt=&Apache::lonlocal::texthash( 'create' => 'Creating a new',
   'resource' => 'resource',    'resource' => 'resource',
Line 708  ENDNEWPROBLEM Line 775  ENDNEWPROBLEM
   
 sub view_or_edit_menu {  sub view_or_edit_menu {
     my ($request) = @_;      my ($request) = @_;
     my $url=$request->uri;      my $url=&HTML::Entities::encode($request->uri,'<>&"');
     my %lt=&Apache::lonlocal::texthash( 'would' => 'Would you like to',      my %lt=&Apache::lonlocal::texthash( 'would' => 'Would you like to',
       'view' => 'View',        'view' => 'View',
       'Edit' => 'edit',        'Edit' => 'edit',
Line 730  sub handler { Line 797  sub handler {
     my $request=$_[0];      my $request=$_[0];
           
     $Apache::lonxml::debug=$ENV{'user.debug'};      $Apache::lonxml::debug=$ENV{'user.debug'};
     if (&setupheader($request)) { return OK; }  
     $ENV{'request.uri'}=$request->uri;      $ENV{'request.uri'}=$request->uri;
       &setuppermissions();
     #setup permissions  
     $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});  
     $Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});  
     &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");      &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");
     # some times multiple problemmodes are submitted, need to select      # some times multiple problemmodes are submitted, need to select
     # the last one      # the last one
Line 753  sub handler { Line 816  sub handler {
     #check if we know where we are      #check if we know where we are
     if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) {       if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { 
  # if we are browsing we might not be able to know where we are   # if we are browsing we might not be able to know where we are
  if ($Apache::lonhomework::browse ne 'F') {   if ($Apache::lonhomework::browse ne 'F' && 
       $ENV{'request.state'} ne "construct") {
     #should know where we are, so ask      #should know where we are, so ask
     if ( &Apache::lonnet::mod_perl_version() == 2 ) {      if ( &Apache::lonnet::mod_perl_version() == 2 ) {
  &Apache::lonnet::cleanenv();   &Apache::lonnet::cleanenv();
     }      }
     $request->internal_redirect('/adm/ambiguous'); return;      &Apache::lonnet::logthis(&Apache::lonnet::mod_perl_version());
       $request->internal_redirect('/adm/ambiguous'); return OK;
  }   }
     }      }
       if (&setupheader($request)) { return OK; }
   
     my ($symb) = &Apache::lonxml::whichuser();      my ($symb) = &Apache::lonxml::whichuser();
     &Apache::lonxml::debug('symb is '.$symb);      &Apache::lonxml::debug('symb is '.$symb);
Line 782  sub handler { Line 848  sub handler {
  #&view_or_edit_menu($request);   #&view_or_edit_menu($request);
  $ENV{'form.problemmode'}='View';   $ENV{'form.problemmode'}='View';
  &renderpage($request,$file);   &renderpage($request,$file);
     } elsif ($ENV{'form.problemmode'} eq &mt('EditXML')) {      } elsif ($ENV{'form.problemmode'} eq &mt('EditXML') ||
        $ENV{'form.problemmode'} eq 'EditXML' {
  &editxmlmode($request,$file);   &editxmlmode($request,$file);
     } elsif ($ENV{'form.problemmode'} eq &mt('Calculate answers')) {      } elsif ($ENV{'form.problemmode'} eq &mt('Calculate answers')) {
  &analyze($request,$file);   &analyze($request,$file);
Removed from v.1.171  
changed lines
  Added in v.1.190

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