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Diff for /loncom/homework/grades.pm between versions 1.510 and 1.516

version 1.510, 2008/02/06 16:32:30 version 1.516, 2008/03/24 18:45:04
Line 47  use LONCAPA; Line 47  use LONCAPA;
 use POSIX qw(floor);  use POSIX qw(floor);
   
   
   
 my %perm=();  my %perm=();
   
   #  These variables are used to recover from ssi errors
   
   my $ssi_retries = 5;
   my $ssi_error;
   my $ssi_error_resource;
   my $ssi_error_message;
   
   
   #  Do an ssi with retries:
   #  While I'd love to factor out this with the vesrion in lonprintout,
   #  that would either require a data coupling between modules, which I refuse to perpetuate
   #  (there's quite enough of that already), or would require the invention of another infrastructure
   #  I'm not quite ready to invent (e.g. an ssi_with_retry object).
   #
   # At least the logic that drives this has been pulled out into loncommon.
   
   
   #
   #   ssi_with_retries - Does the server side include of a resource.
   #                      if the ssi call returns an error we'll retry it up to
   #                      the number of times requested by the caller.
   #                      If we still have a proble, no text is appended to the
   #                      output and we set some global variables.
   #                      to indicate to the caller an SSI error occurred.  
   #                      All of this is supposed to deal with the issues described
   #                      in LonCAPA BZ 5631 see:
   #                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
   #                      by informing the user that this happened.
   #
   # Parameters:
   #   resource   - The resource to include.  This is passed directly, without
   #                interpretation to lonnet::ssi.
   #   form       - The form hash parameters that guide the interpretation of the resource
   #                
   #   retries    - Number of retries allowed before giving up completely.
   # Returns:
   #   On success, returns the rendered resource identified by the resource parameter.
   # Side Effects:
   #   The following global variables can be set:
   #    ssi_error                - If an unrecoverable error occurred this becomes true.
   #                               It is up to the caller to initialize this to false
   #                               if desired.
   #    ssi_error_resource  - If an unrecoverable error occurred, this is the value
   #                               of the resource that could not be rendered by the ssi
   #                               call.
   #    ssi_error_message   - The error string fetched from the ssi response
   #                               in the event of an error.
   #
   sub ssi_with_retries {
       my ($resource, $retries, %form) = @_;
       my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
       if ($response->is_error) {
    $ssi_error          = 1;
    $ssi_error_resource = $resource;
    $ssi_error_message  = $response->code . " " . $response->message;
       }
   
       return $content;
   
   }
   #
   #  Prodcuces an ssi retry failure error message to the user:
   #
   
   sub ssi_print_error {
       my ($r) = @_;
       my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
       $r->print('
   <br />
   <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
   <p>
   '.&mt('Unable to retrieve a resource from a server:').'<br />
   '.&mt('Resource:').' '.$ssi_error_resource.'<br />
   '.&mt('Error:').' '.$ssi_error_message.'
   </p>
   <p>'.
   &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
   &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
   '</p>');
       return;
   }
   
 #  #
 # --- Retrieve the parts from the metadata file.---  # --- Retrieve the parts from the metadata file.---
 sub getpartlist {  sub getpartlist {
Line 201  sub reset_caches { Line 284  sub reset_caches {
   
  my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);   my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
  $url=&Apache::lonnet::clutter($url);   $url=&Apache::lonnet::clutter($url);
  my $subresult=&Apache::lonnet::ssi($url,   my $subresult=&ssi_with_retries($url, $ssi_retries,
    ('grade_target' => 'analyze'),     ('grade_target' => 'analyze',
    ('grade_domain' => $udom),      'grade_domain' => $udom,
    ('grade_symb' => $symb),      'grade_symb' => $symb,
    ('grade_courseid' =>       'grade_courseid' => 
     $env{'request.course.id'}),      $env{'request.course.id'},
    ('grade_username' => $uname));      'grade_username' => $uname));
  (undef,$subresult)=split(/_HASH_REF__/,$subresult,2);   (undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
  my %analyze=&Apache::lonnet::str2hash($subresult);   my %analyze=&Apache::lonnet::str2hash($subresult);
  return $analyze_cache{$key} = \%analyze;   return $analyze_cache{$key} = \%analyze;
Line 1759  sub download_all_link { Line 1842  sub download_all_link {
  join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));   join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
   
     my $identifier = &Apache::loncommon::get_cgi_id();      my $identifier = &Apache::loncommon::get_cgi_id();
     &Apache::lonnet::appenv('cgi.'.$identifier.'.students' => $all_students,      &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
                             'cgi.'.$identifier.'.symb' => $symb,                               'cgi.'.$identifier.'.symb' => $symb,
                             'cgi.'.$identifier.'.parts' => $parts,);                               'cgi.'.$identifier.'.parts' => $parts,});
     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.      $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
       &mt('Download All Submitted Documents').'</a>');        &mt('Download All Submitted Documents').'</a>');
     return      return
Line 4881  sub scantron_selectphase { Line 4964  sub scantron_selectphase {
     my $CODE_unique=&scantron_CODEunique();      my $CODE_unique=&scantron_CODEunique();
     my $result;      my $result;
   
       $ssi_error = 0;
   
     # Chunk of form to prompt for a file to grade and how:      # Chunk of form to prompt for a file to grade and how:
   
     $result.= '      $result.= '
Line 6037  sub scantron_validate_file { Line 6122  sub scantron_validate_file {
     }      }
     if (!$stop) {      if (!$stop) {
  my $warning=&scantron_warning_screen('Start Grading');   my $warning=&scantron_warning_screen('Start Grading');
  $r->print('   $r->print(&mt('Validation process complete.').'<br />
 <b>'.&mt('Validation process complete.').'<b><br />  
 '.$warning.'  '.$warning.'
 <input type="submit" name="submit" value="'.&mt('Start Grading').'" />  <input type="submit" name="submit" value="'.&mt('Start Grading').'" />
 <input type="hidden" name="command" value="scantron_process" />  <input type="hidden" name="command" value="scantron_process" />
Line 7156  sub scantron_get_maxbubble { Line 7240  sub scantron_get_maxbubble {
     my $response_number = 0;      my $response_number = 0;
     my $bubble_line     = 0;      my $bubble_line     = 0;
     foreach my $resource (@resources) {      foreach my $resource (@resources) {
           my $symb = $resource->symb();
         # Need to retrieve part IDs and response IDs because essayresponse,          # Need to retrieve part IDs and response IDs because essayresponse,
         # reactionresponse and organicresponse items are not included in           # reactionresponse and organicresponse items are not included in 
         # $analysis{'parts'} from lonnet::ssi.            # $analysis{'parts'} from lonnet::ssi.  
         my %possible_part_ids;           my %possible_part_ids; 
         if (ref($resource->parts()) eq 'ARRAY') {           if (ref($resource->parts()) eq 'ARRAY') { 
             foreach my $part (@{$resource->parts()}) {              foreach my $part (@{$resource->parts()}) {
                 my @resp_ids = $resource->responseIds($part);                  if (!&Apache::loncommon::check_if_partid_hidden($part,$symb,$udom,$uname)) {
                 foreach my $id (@resp_ids) {                      my @resp_ids = $resource->responseIds($part);
                     $possible_part_ids{$part.'.'.$id} = 1;                      foreach my $id (@resp_ids) {
                           $possible_part_ids{$part.'.'.$id} = 1;
                       }
                 }                  }
             }              }
         }          }
  my $result=&Apache::lonnet::ssi($resource->src(),   my $result=&ssi_with_retries($resource->src(), $ssi_retries,
  ('symb' => $resource->symb()),   ('symb' => $symb,
  ('grade_target' => 'analyze'),   'grade_target' => 'analyze',
  ('grade_courseid' => $cid),   'grade_courseid' => $cid,
  ('grade_domain' => $udom),   'grade_domain' => $udom,
  ('grade_username' => $uname));   'grade_username' => $uname));
  my (undef, $an) =   my (undef, $an) =
     split(/_HASH_REF__/,$result, 2);      split(/_HASH_REF__/,$result, 2);
   
Line 7182  sub scantron_get_maxbubble { Line 7269  sub scantron_get_maxbubble {
  my %analysis = &Apache::lonnet::str2hash($an);   my %analysis = &Apache::lonnet::str2hash($an);
   
         if (ref($analysis{'parts'}) eq 'ARRAY') {          if (ref($analysis{'parts'}) eq 'ARRAY') {
             @parts = @{$analysis{'parts'}};              foreach my $part (@{$analysis{'parts'}}) {
                   my ($id,$respid) = split(/\./,$part);
                   if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
                       push(@parts,$part);
                   }
               }
         }          }
         # Add part_ids for any essayresponse items.           # Add part_ids for any essayresponse items. 
         foreach my $part_id (keys(%possible_part_ids)) {          foreach my $part_id (keys(%possible_part_ids)) {
Line 7342  sub scantron_validate_missingbubbles { Line 7434  sub scantron_validate_missingbubbles {
   
 sub scantron_process_students {  sub scantron_process_students {
     my ($r) = @_;      my ($r) = @_;
   
     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});      my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
     my ($symb)=&get_symb($r);      my ($symb)=&get_symb($r);
     if (!$symb) {return '';}      if (!$symb) {
    return '';
       }
     my $default_form_data=&defaultFormData($symb);      my $default_form_data=&defaultFormData($symb);
   
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});      my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
Line 7376  SCANTRONFORM Line 7471  SCANTRONFORM
     my ($uname,$udom,$started);      my ($uname,$udom,$started);
   
     &scantron_get_maxbubble(); # Need the bubble lines array to parse.      &scantron_get_maxbubble(); # Need the bubble lines array to parse.
       
   
       # If an ssi failed in scantron_get_maxbubble, put an error message out to
       # the user and return.
   
       if ($ssi_error) {
    $r->print("</form>");
    &ssi_print_error($r);
    $r->print(&show_grading_menu_form($symb));
    return ''; # Dunno why the other returns return '' rather than just returning.
       }
   
     while ($i<$scanlines->{'count'}) {      while ($i<$scanlines->{'count'}) {
   ($uname,$udom)=('','');    ($uname,$udom)=('','');
Line 7403  SCANTRONFORM Line 7509  SCANTRONFORM
   ($uname,$udom)=split(/:/,$uname);    ($uname,$udom)=split(/:/,$uname);
   
  &Apache::lonxml::clear_problem_counter();   &Apache::lonxml::clear_problem_counter();
   &Apache::lonnet::appenv(%$scan_record);    &Apache::lonnet::appenv($scan_record);
   
  if (&scantron_clear_skip($scanlines,$scan_data,$i)) {   if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
     &scantron_putfile($scanlines,$scan_data);      &scantron_putfile($scanlines,$scan_data);
Line 7424  SCANTRONFORM Line 7530  SCANTRONFORM
  $form{'CODE'}=$scan_record->{'scantron.CODE'};   $form{'CODE'}=$scan_record->{'scantron.CODE'};
     } else {      } else {
  $form{'CODE'}='';   $form{'CODE'}='';
       } 
       my $result=&ssi_with_retries($resource->src(), $ssi_retries, %form);
       if ($ssi_error) {
    $ssi_error = 0; # So end of handler error message does not trigger.
    $r->print("</form>");
    &ssi_print_error($r);
    $r->print(&show_grading_menu_form($symb));
    return ''; # Why return ''?  Beats me.
     }      }
     my $result=&Apache::lonnet::ssi($resource->src(),%form);  
     if ($result ne '') {  
     }  
     if (&Apache::loncommon::connection_aborted($r)) { last; }      if (&Apache::loncommon::connection_aborted($r)) { last; }
  }   }
  $completedstudents{$uname}={'line'=>$line};   $completedstudents{$uname}={'line'=>$line};
Line 7729  sub grading_menu { Line 7841  sub grading_menu {
                 $menudata->{'url'}.'" >'.                  $menudata->{'url'}.'" >'.
                 $menudata->{'name'}."</a></h3>\n";                  $menudata->{'name'}."</a></h3>\n";
         } else {          } else {
             $Str .='    <h3><input type="button" value="'.&mt('Verify Receipt').'" '.              $Str .='<hr /><input type="button" value="'.&mt('Verify Receipt').'" '.
                 $menudata->{'jscript'}.                  $menudata->{'jscript'}.
                 ' onClick="javascript:checkChoice(document.forms.gradingMenu,\'5\',\'verify\')" '.                  ' onClick="javascript:checkChoice(document.forms.gradingMenu,\'5\',\'verify\')" '.
                 ' /></h3>';                  ' /> '.
             $Str .= ('&nbsp;'x8).   &Apache::lonnet::recprefix($env{'request.course.id'}).
  &mt(' receipt: [_1]',                      '-<input type="text" name="receipt" size="4" onChange="javascript:checkReceiptNo(this.form,\'OK\')" />';
     &Apache::lonnet::recprefix($env{'request.course.id'}).  
                     '-<input type="text" name="receipt" size="4" onChange="javascript:checkReceiptNo(this.form,\'OK\')" />');  
         }          }
         $Str .= '    '.('&nbsp;'x8).$menudata->{'short_description'}.          $Str .= '    '.('&nbsp;'x8).$menudata->{'short_description'}.
             "\n";              "\n";
Line 8469  sub handler { Line 8579  sub handler {
  &Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));   &Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
     }      }
   
       $ssi_error = 0;
     $request->print(&Apache::loncommon::start_page('Grading'));      $request->print(&Apache::loncommon::start_page('Grading'));
     if ($symb eq '' && $command eq '') {      if ($symb eq '' && $command eq '') {
  if ($env{'user.adv'}) {   if ($env{'user.adv'}) {
Line 8482  sub handler { Line 8592  sub handler {
  if ($tsymb) {   if ($tsymb) {
     my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);      my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);
     if (&Apache::lonnet::allowed('mgr',$tcrsid)) {      if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
  $request->print(&Apache::lonnet::ssi_body('/res/'.$url,   $request->print(&ssi_with_retries('/res/'.$url, $ssi_retries,
   ('grade_username' => $tuname,    ('grade_username' => $tuname,
    'grade_domain' => $tudom,     'grade_domain' => $tudom,
    'grade_courseid' => $tcrsid,     'grade_courseid' => $tcrsid,
Line 8569  sub handler { Line 8679  sub handler {
     $request->print("Access Denied ($command)");      $request->print("Access Denied ($command)");
  }   }
     }      }
       if ($ssi_error) {
    &ssi_print_error($request);
       }
     $request->print(&Apache::loncommon::end_page());      $request->print(&Apache::loncommon::end_page());
     &reset_caches();      &reset_caches();
     return '';      return '';
Removed from v.1.510  
changed lines
  Added in v.1.516

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