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Revision 6496 - (download) (as text) (annotate)
Wed Nov 10 00:38:28 2010 UTC (2 years, 6 months ago) by david gage
File size: 61901 byte(s)
fixed where the problems were being put on drag

    1 ################################################################################
    2 # WeBWorK Online Homework Delivery System
    3 # Copyright © 2000-2007 The WeBWorK Project, http://openwebwork.sf.net/
    4 # $CVSHeader: webwork2/lib/WeBWorK/ContentGenerator/Instructor/SetMaker.pm,v 1.85 2008/07/01 13:18:52 glarose Exp $
    5 #
    6 # This program is free software; you can redistribute it and/or modify it under
    7 # the terms of either: (a) the GNU General Public License as published by the
    8 # Free Software Foundation; either version 2, or (at your option) any later
    9 # version, or (b) the "Artistic License" which comes with this package.
   10 #
   11 # This program is distributed in the hope that it will be useful, but WITHOUT
   12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   13 # FOR A PARTICULAR PURPOSE.  See either the GNU General Public License or the
   14 # Artistic License for more details.
   15 ################################################################################
   16 
   17 
   18 package WeBWorK::ContentGenerator::Instructor::SetMaker2;
   19 use base qw(WeBWorK::ContentGenerator::Instructor);
   20 
   21 =head1 NAME
   22 
   23 WeBWorK::ContentGenerator::Instructor::SetMaker2 - Make homework sets.
   24 
   25 =cut
   26 
   27 use strict;
   28 use warnings;
   29 
   30 
   31 #use CGI qw(-nosticky);
   32 use WeBWorK::CGI;
   33 use WeBWorK::Debug;
   34 use WeBWorK::Form;
   35 use WeBWorK::Utils qw(readDirectory max sortByName);
   36 use WeBWorK::Utils::Tasks qw(renderProblems);
   37 use File::Find;
   38 
   39 require WeBWorK::Utils::ListingDB;
   40 
   41 use constant SHOW_HINTS_DEFAULT => 0;
   42 use constant SHOW_SOLUTIONS_DEFAULT => 0;
   43 use constant MAX_SHOW_DEFAULT => 20;
   44 use constant NO_LOCAL_SET_STRING => 'No sets in this course yet';
   45 use constant SELECT_SET_STRING => 'Select a Set from this Course';
   46 use constant SELECT_LOCAL_STRING => 'Select a Problem Collection';
   47 use constant MY_PROBLEMS => '  My Problems  ';
   48 use constant MAIN_PROBLEMS => '  Unclassified Problems  ';
   49 use constant CREATE_SET_BUTTON => 'Create New Set';
   50 use constant ALL_CHAPTERS => 'All Chapters';
   51 use constant ALL_SUBJECTS => 'All Subjects';
   52 use constant ALL_SECTIONS => 'All Sections';
   53 use constant ALL_TEXTBOOKS => 'All Textbooks';
   54 
   55 use constant LIB2_DATA => {
   56   'dbchapter' => {name => 'library_chapters', all => 'All Chapters'},
   57   'dbsection' =>  {name => 'library_sections', all =>'All Sections' },
   58   'dbsubject' =>  {name => 'library_subjects', all => 'All Subjects' },
   59   'textbook' =>  {name => 'library_textbook', all =>  'All Textbooks'},
   60   'textchapter' => {name => 'library_textchapter', all => 'All Chapters'},
   61   'textsection' => {name => 'library_textsection', all => 'All Sections'},
   62   'keywords' =>  {name => 'library_keywords', all => '' },
   63   };
   64 
   65 ## Flags for operations on files
   66 
   67 use constant ADDED => 1;
   68 use constant HIDDEN => (1 << 1);
   69 use constant SUCCESS => (1 << 2);
   70 use constant DELETED => (1 << 3);
   71 use constant MOVED => (1 << 4);
   72 
   73 ##  for additional problib buttons
   74 my %problib;  ## filled in in global.conf
   75 my %ignoredir = (
   76   '.' => 1, '..' => 1, 'Library' => 1, 'CVS' => 1, 'tmpEdit' => 1,
   77   'headers' => 1, 'macros' => 1, 'email' => 1, '.svn' => 1,
   78 );
   79 
   80 sub prepare_activity_entry {
   81   my $self=shift;
   82   my $r = $self->r;
   83   my $user = $self->r->param('user') || 'NO_USER';
   84   return("In SetMaker as user $user");
   85 }
   86 
   87 ## This is for searching the disk for directories containing pg files.
   88 ## to make the recursion work, this returns an array where the first
   89 ## item is the number of pg files in the directory.  The second is a
   90 ## list of directories which contain pg files.
   91 ##
   92 ## If a directory contains only one pg file and the directory name
   93 ## is the same as the file name, then the directory is considered
   94 ## to be part of the parent directory (it is probably in a separate
   95 ## directory only because it has auxiliary files that want to be
   96 ## kept together with the pg file).
   97 ##
   98 ## If a directory has a file named "=library-ignore", it is never
   99 ## included in the directory menu.  If a directory contains a file
  100 ## called "=library-combine-up", then its pg are included with those
  101 ## in the parent directory (and the directory does not appear in the
  102 ## menu).  If it has a file called "=library-no-combine" then it is
  103 ## always listed as a separate directory even if it contains only one
  104 ## pg file.
  105 
  106 sub get_library_sets {
  107   my $top = shift; my $dir = shift;
  108   # ignore directories that give us an error
  109   my @lis = eval { readDirectory($dir) };
  110   if ($@) {
  111     warn $@;
  112     return (0);
  113   }
  114   return (0) if grep /^=library-ignore$/, @lis;
  115 
  116   my @pgfiles = grep { m/\.pg$/ and (not m/(Header|-text)\.pg$/) and -f "$dir/$_"} @lis;
  117   my $pgcount = scalar(@pgfiles);
  118   my $pgname = $dir; $pgname =~ s!.*/!!; $pgname .= '.pg';
  119   my $combineUp = ($pgcount == 1 && $pgname eq $pgfiles[0] && !(grep /^=library-no-combine$/, @lis));
  120 
  121   my @pgdirs;
  122   my @dirs = grep {!$ignoredir{$_} and -d "$dir/$_"} @lis;
  123   if ($top == 1) {@dirs = grep {!$problib{$_}} @dirs}
  124   foreach my $subdir (@dirs) {
  125     my @results = get_library_sets(0, "$dir/$subdir");
  126     $pgcount += shift @results; push(@pgdirs,@results);
  127   }
  128 
  129   return ($pgcount, @pgdirs) if $top || $combineUp || grep /^=library-combine-up$/, @lis;
  130   return (0,@pgdirs,$dir);
  131 }
  132 
  133 sub get_library_pgs {
  134   my $top = shift; my $base = shift; my $dir = shift;
  135   my @lis = readDirectory("$base/$dir");
  136   return () if grep /^=library-ignore$/, @lis;
  137   return () if !$top && grep /^=library-no-combine$/, @lis;
  138 
  139   my @pgs = grep { m/\.pg$/ and (not m/(Header|-text)\.pg$/) and -f "$base/$dir/$_"} @lis;
  140   my $others = scalar(grep { (!m/\.pg$/ || m/(Header|-text)\.pg$/) &&
  141                               !m/(\.(tmp|bak)|~)$/ && -f "$base/$dir/$_" } @lis);
  142 
  143   my @dirs = grep {!$ignoredir{$_} and -d "$base/$dir/$_"} @lis;
  144   if ($top == 1) {@dirs = grep {!$problib{$_}} @dirs}
  145   foreach my $subdir (@dirs) {push(@pgs, get_library_pgs(0,"$base/$dir",$subdir))}
  146 
  147   return () unless $top || (scalar(@pgs) == 1 && $others) || grep /^=library-combine-up$/, @lis;
  148   return (map {"$dir/$_"} @pgs);
  149 }
  150 
  151 sub list_pg_files {
  152   my ($templates,$dir) = @_;
  153   my $top = ($dir eq '.')? 1 : 2;
  154   my @pgs = get_library_pgs($top,$templates,$dir);
  155   return sortByName(undef,@pgs);
  156 }
  157 
  158 ## Search for set definition files
  159 
  160 sub get_set_defs {
  161   my $topdir = shift;
  162   my @found_set_defs;
  163   # get_set_defs_wanted is a closure over @found_set_defs
  164   my $get_set_defs_wanted = sub {
  165     #my $fn = $_;
  166     #my $fdir = $File::Find::dir;
  167     #return() if($fn !~ /^set.*\.def$/);
  168     ##return() if(not -T $fn);
  169     #push @found_set_defs, "$fdir/$fn";
  170     push @found_set_defs, $_ if m|/set[^/]*\.def$|;
  171   };
  172   find({ wanted => $get_set_defs_wanted, follow_fast=>1, no_chdir=>1}, $topdir);
  173   map { $_ =~ s|^$topdir/?|| } @found_set_defs;
  174   return @found_set_defs;
  175 }
  176 
  177 ## Try to make reading of set defs more flexible.  Additional strategies
  178 ## for fixing a path can be added here.
  179 
  180 sub munge_pg_file_path {
  181   my $self = shift;
  182   my $pg_path = shift;
  183   my $path_to_set_def = shift;
  184   my $end_path = $pg_path;
  185   # if the path is ok, don't fix it
  186   return($pg_path) if(-e $self->r->ce->{courseDirs}{templates}."/$pg_path");
  187   # if we have followed a link into a self contained course to get
  188   # to the set.def file, we need to insert the start of the path to
  189   # the set.def file
  190   $end_path = "$path_to_set_def/$pg_path";
  191   return($end_path) if(-e $self->r->ce->{courseDirs}{templates}."/$end_path");
  192   # if we got this far, this path is bad, but we let it produce
  193   # an error so the user knows there is a troublesome path in the
  194   # set.def file.
  195   return($pg_path);
  196 }
  197 
  198 ## Read a set definition file.  This could be abstracted since it happens
  199 ## elsewhere.  Here we don't have to process so much of the file.
  200 
  201 sub read_set_def {
  202   my $self = shift;
  203   my $r = $self->r;
  204   my $filePathOrig = shift;
  205   my $filePath = $r->ce->{courseDirs}{templates}."/$filePathOrig";
  206   $filePathOrig =~ s/set.*\.def$//;
  207   $filePathOrig =~ s|/$||;
  208   $filePathOrig = "." if ($filePathOrig !~ /\S/);
  209   my @pg_files = ();
  210   my ($line, $got_to_pgs, $name, @rest) = ("", 0, "");
  211   if ( open (SETFILENAME, "$filePath") )    {
  212     while($line = <SETFILENAME>) {
  213       chomp($line);
  214       $line =~ s|(#.*)||; # don't read past comments
  215       if($got_to_pgs) {
  216         unless ($line =~ /\S/) {next;} # skip blank lines
  217         ($name,@rest) = split (/\s*,\s*/,$line);
  218         $name =~ s/\s*//g;
  219         push @pg_files, $name;
  220       } else {
  221         $got_to_pgs = 1 if ($line =~ /problemList\s*=/);
  222       }
  223     }
  224   } else {
  225     $self->addbadmessage("Cannot open $filePath");
  226   }
  227   # This is where we would potentially munge the pg file paths
  228   # One possibility
  229   @pg_files = map { $self->munge_pg_file_path($_, $filePathOrig) } @pg_files;
  230   return(@pg_files);
  231 }
  232 
  233 ## go through past page getting a list of identifiers for the problems
  234 ## and whether or not they are selected, and whether or not they should
  235 ## be hidden
  236 
  237 sub get_past_problem_files {
  238   my $r = shift;
  239   my @found=();
  240   my $count =1;
  241   while (defined($r->param("filetrial$count"))) {
  242     my $val = 0;
  243     $val |= ADDED if($r->param("trial$count"));
  244     $val |= HIDDEN if($r->param("hideme$count"));
  245     $val |= MOVED if($r->param("moved$count"));
  246     push @found, [$r->param("filetrial$count"), $val];
  247     $count++;
  248   }
  249   $count = 1;
  250   while (defined($r->param("mysetfiletrial$count"))) {
  251     my $val = 0;
  252     $val |= DELETED if($r->param("deleted$count"));
  253     push @found, [$r->param("mysetfiletrial$count"), $val];
  254     $count++;
  255   }
  256   return(\@found);
  257 }
  258 
  259 #### For adding new problems
  260 
  261 sub add_selected {
  262   my $self = shift;
  263   my $db = shift;
  264   my $setName = shift;
  265   my @past_problems = @{$self->{past_problems}};
  266   my @selected = @past_problems;
  267   my (@path, $file, $selected, $freeProblemID);
  268   # DBFIXME count would work just as well
  269   $freeProblemID = max($db->listGlobalProblems($setName)) + 1;
  270   my $addedcount=0;
  271 
  272   for $selected (@selected) {
  273     if($selected->[1] & ADDED || $selected->[1] & MOVED) {
  274       $file = $selected->[0];
  275       print "$file";
  276       my $problemRecord = $self->addProblemToSet(setName => $setName,
  277         sourceFile => $file, problemID => $freeProblemID);
  278       $freeProblemID++;
  279       $self->assignProblemToAllSetUsers($problemRecord);
  280       if(!($selected->[1] & MOVED)){
  281         $selected->[1] |= SUCCESS;
  282       }
  283       $addedcount++;
  284     }
  285   }
  286   return($addedcount);
  287 }
  288 
  289 sub delete_selected {
  290   my $self = shift;
  291   my $db = shift;
  292   my $setName = shift;
  293   my @past_problems = @{$self->{past_problems}};
  294   my @selected = @past_problems;
  295   my (@path, $file, $selected);
  296   # DBFIXME count would work just as well
  297   my $deletedcount=0;
  298 
  299   for $selected (@selected) {
  300     if($selected->[1] & DELETED || $selected->[1] & MOVED) {
  301       foreach my $problem ($db->listGlobalProblems($setName)) {
  302         my $problemRecord = $db->getGlobalProblem($setName, $problem);
  303         if($problemRecord->source_file eq $selected->[0]){
  304           $db->deleteGlobalProblem($setName, $problemRecord->problem_id);
  305         }
  306       }
  307       if(!($selected->[1] & MOVED)){
  308         $selected->[1] |= SUCCESS;
  309       }
  310       $deletedcount++;
  311     }
  312   }
  313   return($deletedcount);
  314 }
  315 
  316 
  317 ############# List of sets of problems in templates directory
  318 
  319 sub get_problem_directories {
  320   my $ce = shift;
  321   my $lib = shift;
  322   my $source = $ce->{courseDirs}{templates};
  323   my $main = MY_PROBLEMS; my $isTop = 1;
  324   if ($lib) {$source .= "/$lib"; $main = MAIN_PROBLEMS; $isTop = 2}
  325   my @all_problem_directories = get_library_sets($isTop, $source);
  326   my $includetop = shift @all_problem_directories;
  327   my $j;
  328   for ($j=0; $j<scalar(@all_problem_directories); $j++) {
  329     $all_problem_directories[$j] =~ s|^$ce->{courseDirs}->{templates}/?||;
  330   }
  331   @all_problem_directories = sortByName(undef, @all_problem_directories);
  332   unshift @all_problem_directories, $main if($includetop);
  333   return (\@all_problem_directories);
  334 }
  335 
  336 ############# Everyone has a view problems line.  Abstract it
  337 sub view_problems_line {
  338   my $internal_name = shift;
  339   my $label = shift;
  340   my $r = shift; # so we can get parameter values
  341   my $result = CGI::submit(-name=>"$internal_name", -value=>$label);
  342 
  343   my %display_modes = %{WeBWorK::PG::DISPLAY_MODES()};
  344   my @active_modes = grep { exists $display_modes{$_} }
  345     @{$r->ce->{pg}->{displayModes}};
  346   push @active_modes, 'None';
  347   # We have our own displayMode since its value may be None, which is illegal
  348   # in other modules.
  349   my $mydisplayMode = $r->param('mydisplayMode') || $r->ce->{pg}->{options}->{displayMode};
  350   $result .= '&nbsp;Display&nbsp;Mode:&nbsp;'.CGI::popup_menu(-name=> 'mydisplayMode',
  351                                                               -values=>\@active_modes,
  352                                                               -default=> $mydisplayMode);
  353   # Now we give a choice of the number of problems to show
  354   my $defaultMax = $r->param('max_shown') || MAX_SHOW_DEFAULT;
  355   $result .= '&nbsp;Max. Shown:&nbsp'.
  356     CGI::popup_menu(-name=> 'max_shown',
  357                     -values=>[5,10,15,20,25,30,50,'All'],
  358                     -default=> $defaultMax);
  359   # Option of whether to show hints and solutions
  360   my $defaultHints = $r->param('showHints') || SHOW_HINTS_DEFAULT;
  361   $result .= "&nbsp;".CGI::checkbox(-name=>"showHints",-checked=>$defaultHints,-label=>"Hints");
  362   my $defaultSolutions = $r->param('showSolutions') || SHOW_SOLUTIONS_DEFAULT;
  363   $result .= "&nbsp;".CGI::checkbox(-name=>"showSolutions",-checked=>$defaultSolutions,-label=>"Solutions");
  364 
  365   return($result);
  366 }
  367 
  368 
  369 ### The browsing panel has three versions
  370 #####  Version 1 is local problems
  371 sub browse_local_panel {
  372   my $self = shift;
  373   my $library_selected = shift;
  374   my $lib = shift || ''; $lib =~ s/^browse_//;
  375   my $name = ($lib eq '')? 'Local' : $problib{$lib};
  376 
  377   my $list_of_prob_dirs= get_problem_directories($self->r->ce,$lib);
  378   if(scalar(@$list_of_prob_dirs) == 0) {
  379     $library_selected = "Found no directories containing problems";
  380     unshift @{$list_of_prob_dirs}, $library_selected;
  381   } else {
  382     my $default_value = SELECT_LOCAL_STRING;
  383     if (not $library_selected or $library_selected eq $default_value) {
  384       unshift @{$list_of_prob_dirs},  $default_value;
  385       $library_selected = $default_value;
  386     }
  387   }
  388   debug("library is $lib and sets are $library_selected");
  389   my $view_problem_line = view_problems_line('view_local_set', 'View Problems', $self->r);
  390   my @popup_menu_args = (
  391     -name => 'library_sets',
  392     -values => $list_of_prob_dirs,
  393     -default => $library_selected,
  394   );
  395   # make labels without the $lib prefix -- reduces the width of the popup menu
  396   if (length($lib)) {
  397     my %labels = map { my($l)=$_=~/^$lib\/(.*)$/;$_=>$l } @$list_of_prob_dirs;
  398     push @popup_menu_args, -labels => \%labels;
  399   }
  400   print CGI::div({-class=>"InfoPanel", -align=>"left"}, "$name Problems: ",
  401                   CGI::popup_menu(@popup_menu_args),
  402                   CGI::br(),
  403                   $view_problem_line,
  404   );
  405 }
  406 
  407 #####  Version 2 is local homework sets
  408 sub browse_mysets_panel {
  409   my $self = shift;
  410   my $library_selected = shift;
  411   my $list_of_local_sets = shift;
  412   my $remember_local_set = shift;
  413   my $default_value = "Select a Homework Set";
  414 
  415   if(scalar(@$list_of_local_sets) == 0) {
  416     $list_of_local_sets = [NO_LOCAL_SET_STRING];
  417   } elsif (not $library_selected or $library_selected eq $default_value) {
  418     unshift @{$list_of_local_sets},  $default_value;
  419     $library_selected = $default_value;
  420   }
  421 
  422   #my $view_problem_line = view_problems_line('view_mysets_set', 'View Problems', $self->r);
  423   print CGI::div({-class=>"InfoPanel", -align=>"left"},
  424     CGI::submit(-name=>"update", -style=>"width: 25ex; font-weight:bold;",
  425                   -value=>"Update Set"),
  426     CGI::popup_menu(-name=> 'myset_sets',
  427                     -values=>$list_of_local_sets,
  428                     -default=> $library_selected),
  429     CGI::hidden(-name=> 'local_sets', -value=>$remember_local_set),
  430     CGI::br(),
  431     CGI::submit(-name=>"view_mysets_set", -value=>"View Set"),
  432   );
  433 }
  434 
  435 #####  Version 2.1 is local homework sets
  436 sub edit_mysets_panel {
  437   my $self = shift;
  438   my $library_selected = shift;
  439   my $list_of_local_sets = shift;
  440   my $default_value = "Select a Homework Set";
  441 
  442   if(scalar(@$list_of_local_sets) == 0) {
  443     $list_of_local_sets = [NO_LOCAL_SET_STRING];
  444   } elsif (not $library_selected or $library_selected eq $default_value) {
  445     unshift @{$list_of_local_sets},  $default_value;
  446     $library_selected = $default_value;
  447   }
  448 
  449   my $view_problem_line = view_problems_line('edit_mysets_set', 'View Problems', $self->r);
  450   print CGI::Tr({},
  451     CGI::td({-class=>"InfoPanel", -align=>"left"}, "Browse from: ",
  452     CGI::popup_menu(-name=> 'library_sets',
  453                     -values=>$list_of_local_sets,
  454                     -default=> $library_selected),
  455     CGI::br(),
  456     $view_problem_line
  457   ));
  458 }
  459 
  460 #####  Version 3 is the problem library
  461 #
  462 # This comes in 3 forms, problem library version 1, and for version 2 there
  463 # is the basic, and the advanced interfaces.  This function checks what we are
  464 # supposed to do, or aborts if the problem library has not been installed.
  465 
  466 sub browse_library_panel {
  467   my $self=shift;
  468   my $r = $self->r;
  469   my $ce = $r->ce;
  470 
  471   # See if the problem library is installed
  472   my $libraryRoot = $r->{ce}->{problemLibrary}->{root};
  473 
  474   unless($libraryRoot) {
  475     print CGI::div({class=>'ResultsWithError', align=>"center"},
  476       "The problem library has not been installed.");
  477     return;
  478   }
  479   # Test if the Library directory link exists.  If not, try to make it
  480   unless(-d "$ce->{courseDirs}->{templates}/Library") {
  481     unless(symlink($libraryRoot, "$ce->{courseDirs}->{templates}/Library")) {
  482       my $msg =  <<"HERE";
  483 You are missing the directory <code>templates/Library</code>, which is needed
  484 for the Problem Library to function.  It should be a link pointing to
  485 <code>$libraryRoot</code>, which you set in <code>conf/global.conf</code>.
  486 I tried to make the link for you, but that failed.  Check the permissions
  487 in your <code>templates</code> directory.
  488 HERE
  489       $self->addbadmessage($msg);
  490     }
  491   }
  492 
  493   # Now check what version we are supposed to use
  494   my $libraryVersion = $r->{ce}->{problemLibrary}->{version} || 1;
  495   if($libraryVersion == 1) {
  496     return $self->browse_library_panel1;
  497   } elsif($libraryVersion == 2) {
  498     return $self->browse_library_panel2 if($self->{library_basic}==1);
  499     return $self->browse_library_panel2adv;
  500   } else {
  501     print CGI::div({class=>'ResultsWithError', align=>"center"},
  502       "The problem library version is set to an illegal value.");
  503     return;
  504   }
  505 }
  506 
  507 sub browse_library_panel1 {
  508   my $self = shift;
  509   my $r = $self->r;
  510   my $ce = $r->ce;
  511 
  512   my @chaps = WeBWorK::Utils::ListingDB::getAllChapters($r->{ce});
  513   unshift @chaps, LIB2_DATA->{dbchapter}{all};
  514   my $chapter_selected = $r->param('library_chapters') || LIB2_DATA->{dbchapter}->{all};
  515 
  516   my @sects=();
  517   if ($chapter_selected ne LIB2_DATA->{dbchapter}{all}) {
  518     @sects = WeBWorK::Utils::ListingDB::getAllSections($r->{ce}, $chapter_selected);
  519   }
  520 
  521   unshift @sects, ALL_SECTIONS;
  522   my $section_selected =  $r->param('library_sections') || LIB2_DATA->{dbsection}{all};
  523 
  524   my $view_problem_line = view_problems_line('lib_view', 'View Problems', $self->r);
  525 
  526   print CGI::div({-class=>"InfoPanel", -align=>"left"},
  527         CGI::div(["Chapter:",
  528           CGI::popup_menu(-name=> 'library_chapters',
  529                           -values=>\@chaps,
  530                           -default=> $chapter_selected,
  531                           -onchange=>"submit();return true"
  532           ),
  533           CGI::submit(-name=>"lib_select_chapter", -value=>"Update Section List")]),
  534         CGI::div("Section:",
  535           CGI::popup_menu(-name=> 'library_sections',
  536                           -values=>\@sects,
  537                           -default=> $section_selected
  538       )),
  539       CGI::div($view_problem_line)
  540     );
  541 }
  542 
  543 sub browse_library_panel2 {
  544   my $self = shift;
  545   my $r = $self->r;
  546   my $ce = $r->ce;
  547 
  548   my @subjs = WeBWorK::Utils::ListingDB::getAllDBsubjects($r);
  549   unshift @subjs, LIB2_DATA->{dbsubject}{all};
  550 
  551   my @chaps = WeBWorK::Utils::ListingDB::getAllDBchapters($r);
  552   unshift @chaps, LIB2_DATA->{dbchapter}{all};
  553 
  554   my @sects=();
  555   @sects = WeBWorK::Utils::ListingDB::getAllDBsections($r);
  556   unshift @sects, LIB2_DATA->{dbsection}{all};
  557 
  558   my $subject_selected = $r->param('library_subjects') || LIB2_DATA->{dbsubject}{all};
  559   my $chapter_selected = $r->param('library_chapters') || LIB2_DATA->{dbchapter}{all};
  560   my $section_selected =  $r->param('library_sections') || LIB2_DATA->{dbsection}{all};
  561 
  562   my $view_problem_line = view_problems_line('lib_view', 'View Problems', $self->r);
  563 
  564   my $count_line = WeBWorK::Utils::ListingDB::countDBListings($r);
  565   if($count_line==0) {
  566     $count_line = "There are no matching pg files";
  567   } else {
  568     $count_line = "There are $count_line matching WeBWorK problem files";
  569   }
  570 
  571   print CGI::div({-class=>"InfoPanel", -align=>"left"},
  572     CGI::hidden(-name=>"library_is_basic", -default=>1,-override=>1),
  573     CGI::div(["Subject:",
  574         CGI::popup_menu(-name=> 'library_subjects',
  575                       -values=>\@subjs,
  576                       -default=> $subject_selected,
  577                        -onchange=>"submit();return true"
  578         )]),
  579       CGI::div({-colspan=>2, -align=>"right"},
  580         CGI::submit(-name=>"lib_select_subject", -value=>"Update Chapter/Section Lists")),
  581       CGI::div(["Chapter:",
  582         CGI::popup_menu(-name=> 'library_chapters',
  583                       -values=>\@chaps,
  584                       -default=> $chapter_selected,
  585                        -onchange=>"submit();return true"
  586         )]),
  587       CGI::div({-colspan=>2, -align=>"right"},
  588           CGI::submit(-name=>"library_advanced", -value=>"Advanced Search")),
  589       CGI::div(["Section:",
  590       CGI::popup_menu(-name=> 'library_sections',
  591                   -values=>\@sects,
  592                   -default=> $section_selected,
  593               -onchange=>"submit();return true"
  594         )]),
  595         CGI::div({-colspan=>3}, $view_problem_line),
  596         CGI::div({-colspan=>3, -align=>"center"}, $count_line)
  597    );
  598 
  599 }
  600 
  601 sub browse_library_panel2adv {
  602   my $self = shift;
  603   my $r = $self->r;
  604   my $ce = $r->ce;
  605   my $right_button_style = "width: 18ex";
  606 
  607   my @subjs = WeBWorK::Utils::ListingDB::getAllDBsubjects($r);
  608   if(! grep { $_ eq $r->param('library_subjects') } @subjs) {
  609     $r->param('library_subjects', '');
  610   }
  611   unshift @subjs, LIB2_DATA->{dbsubject}{all};
  612 
  613   my @chaps = WeBWorK::Utils::ListingDB::getAllDBchapters($r);
  614   if(! grep { $_ eq $r->param('library_chapters') } @chaps) {
  615     $r->param('library_chapters', '');
  616   }
  617   unshift @chaps, LIB2_DATA->{dbchapter}{all};
  618 
  619   my @sects = WeBWorK::Utils::ListingDB::getAllDBsections($r);
  620   if(! grep { $_ eq $r->param('library_sections') } @sects) {
  621     $r->param('library_sections', '');
  622   }
  623   unshift @sects, LIB2_DATA->{dbsection}{all};
  624 
  625   my $texts = WeBWorK::Utils::ListingDB::getDBTextbooks($r);
  626   my @textarray = map { $_->[0] }  @{$texts};
  627   my %textlabels = ();
  628   for my $ta (@{$texts}) {
  629     $textlabels{$ta->[0]} = $ta->[1]." by ".$ta->[2]." (edition ".$ta->[3].")";
  630   }
  631   if(! grep { $_ eq $r->param('library_textbook') } @textarray) {
  632     $r->param('library_textbook', '');
  633   }
  634   unshift @textarray, LIB2_DATA->{textbook}{all};
  635   my $atb = LIB2_DATA->{textbook}{all}; $textlabels{$atb} = LIB2_DATA->{textbook}{all};
  636 
  637   my $textchap_ref = WeBWorK::Utils::ListingDB::getDBTextbooks($r, 'textchapter');
  638   my @textchaps = map { $_->[0] } @{$textchap_ref};
  639   if(! grep { $_ eq $r->param('library_textchapter') } @textchaps) {
  640     $r->param('library_textchapter', '');
  641   }
  642   unshift @textchaps, LIB2_DATA->{textchapter}{all};
  643 
  644   my $textsec_ref = WeBWorK::Utils::ListingDB::getDBTextbooks($r, 'textsection');
  645   my @textsecs = map { $_->[0] } @{$textsec_ref};
  646   if(! grep { $_ eq $r->param('library_textsection') } @textsecs) {
  647     $r->param('library_textsection', '');
  648   }
  649   unshift @textsecs, LIB2_DATA->{textsection}{all};
  650 
  651   my %selected = ();
  652   for my $j (qw( dbsection dbchapter dbsubject textbook textchapter textsection )) {
  653     $selected{$j} = $r->param(LIB2_DATA->{$j}{name}) || LIB2_DATA->{$j}{all};
  654   }
  655 
  656   my $text_popup = CGI::popup_menu(-name => 'library_textbook',
  657                    -values =>\@textarray,
  658                    -labels => \%textlabels,
  659                    -default=>$selected{textbook},
  660                    -onchange=>"submit();return true");
  661 
  662 
  663   my $library_keywords = $r->param('library_keywords') || '';
  664 
  665   my $view_problem_line = view_problems_line('lib_view', 'View Problems', $self->r);
  666 
  667   my $count_line = WeBWorK::Utils::ListingDB::countDBListings($r);
  668   if($count_line==0) {
  669     $count_line = "There are no matching pg files";
  670   } else {
  671     $count_line = "There are $count_line matching WeBWorK problem files";
  672   }
  673 
  674   print CGI::div({-class=>"InfoPanel", -align=>"left"},
  675     CGI::hidden(-name=>"library_is_basic", -default=>2,-override=>1),
  676     # Html done by hand since it is temporary
  677     CGI::div({-colspan=>4, -align=>"center"}, 'All Selected Constraints Joined by "And"'),
  678       CGI::div(["Subject:",
  679         CGI::popup_menu(-name=> 'library_subjects',
  680                       -values=>\@subjs,
  681                       -default=> $selected{dbsubject},
  682                        -onchange=>"submit();return true"
  683         )]),
  684       CGI::div({-colspan=>2, -align=>"right"},
  685         CGI::submit(-name=>"lib_select_subject", -value=>"Update Menus",
  686           -style=> $right_button_style)),
  687       CGI::div(["Chapter:",
  688         CGI::popup_menu(-name=> 'library_chapters',
  689                       -values=>\@chaps,
  690                       -default=> $selected{dbchapter},
  691                        -onchange=>"submit();return true"
  692         )]),
  693       CGI::div({-colspan=>2, -align=>"right"},
  694           CGI::submit(-name=>"library_reset", -value=>"Reset",
  695           -style=>$right_button_style)),
  696       CGI::div(["Section:",
  697       CGI::popup_menu(-name=> 'library_sections',
  698                   -values=>\@sects,
  699                   -default=> $selected{dbsection},
  700               -onchange=>"submit();return true"
  701         )]),
  702       CGI::div({-colspan=>2, -align=>"right"},
  703           CGI::submit(-name=>"library_basic", -value=>"Basic Search",
  704           -style=>$right_button_style)),
  705       CGI::div(["Textbook:", $text_popup]),
  706       CGI::div(["Text chapter:",
  707       CGI::popup_menu(-name=> 'library_textchapter',
  708                   -values=>\@textchaps,
  709                   -default=> $selected{textchapter},
  710               -onchange=>"submit();return true"
  711         )]),
  712       CGI::div(["Text section:",
  713       CGI::popup_menu(-name=> 'library_textsection',
  714                   -values=>\@textsecs,
  715                   -default=> $selected{textsection},
  716               -onchange=>"submit();return true"
  717         )]),
  718          CGI::div("Keywords:"),CGI::div({-colspan=>2},
  719        CGI::textfield(-name=>"library_keywords",
  720               -default=>$library_keywords,
  721               -override=>1,
  722               -size=>40)),
  723       CGI::div({-colspan=>3}, $view_problem_line),
  724       CGI::div({-colspan=>3, -align=>"center"}, $count_line)
  725    );
  726 
  727 }
  728 
  729 
  730 #####  Version 4 is the set definition file panel
  731 
  732 sub browse_setdef_panel {
  733   my $self = shift;
  734   my $r = $self->r;
  735   my $ce = $r->ce;
  736   my $library_selected = shift;
  737   my $default_value = "Select a Set Definition File";
  738   # in the following line, the parens after sort are important. if they are
  739   # omitted, sort will interpret get_set_defs as the name of the comparison
  740   # function, and ($ce->{courseDirs}{templates}) as a single element list to
  741   # be sorted. *barf*
  742   my @list_of_set_defs = sort(get_set_defs($ce->{courseDirs}{templates}));
  743   if(scalar(@list_of_set_defs) == 0) {
  744     @list_of_set_defs = (NO_LOCAL_SET_STRING);
  745   } elsif (not $library_selected or $library_selected eq $default_value) {
  746     unshift @list_of_set_defs, $default_value;
  747     $library_selected = $default_value;
  748   }
  749   my $view_problem_line = view_problems_line('view_setdef_set', 'View Problems', $self->r);
  750   my $popupetc = CGI::popup_menu(-name=> 'library_sets',
  751                                 -values=>\@list_of_set_defs,
  752                                 -default=> $library_selected).
  753     CGI::br().  $view_problem_line;
  754   if($list_of_set_defs[0] eq NO_LOCAL_SET_STRING) {
  755     $popupetc = "there are no set definition files in this course to look at."
  756   }
  757   print CGI::div({-class=>"InfoPanel", -align=>"left"}, "Browse from: ",
  758     $popupetc
  759   );
  760 }
  761 
  762 sub make_mysets_row {
  763   my $self = shift;
  764   my $r = $self->r;
  765   my $ce = $r->ce;
  766   my %data = @_;
  767 
  768   my $list_of_local_sets = $data{all_db_sets};
  769   my $have_local_sets = scalar(@$list_of_local_sets);
  770   my $browse_which = 'browse_mysets';
  771   my $library_selected = $self->{current_myset_set};
  772   my $set_selected = $r->param('myset_sets');
  773   my $remember_local_set = $r->param('local_sets');
  774 
  775   ##  Make buttons for additional problem libraries
  776   #my $libs = '';
  777   #foreach my $lib (sort(keys(%problib))) {
  778   # $libs .= ' '. CGI::submit(-name=>"browse_$lib", -value=>$problib{$lib},
  779   #                              ($browse_which eq "browse_$lib")? (-disabled=>1): ())
  780   #   if (-d "$ce->{courseDirs}{templates}/$lib");
  781   #}
  782   #$libs = CGI::br()."or Problems from".$libs if $libs ne '';
  783 
  784   my $these_widths = "width: 25ex";
  785 
  786   if($have_local_sets ==0) {
  787     $list_of_local_sets = [NO_LOCAL_SET_STRING];
  788   } elsif (not defined($set_selected) or $set_selected eq ""
  789     or $set_selected eq SELECT_SET_STRING) {
  790     unshift @{$list_of_local_sets}, SELECT_SET_STRING;
  791     $set_selected = SELECT_SET_STRING;
  792   }
  793   my $myjs = 'document.mainform.selfassign.value=confirm("Should I assign the new set to you now?\nUse OK for yes and Cancel for no.");true;';
  794 
  795   # Tidy this list up since it is used in two different places
  796   if ($list_of_local_sets->[0] eq SELECT_SET_STRING) {
  797     shift @{$list_of_local_sets};
  798   }
  799 
  800   #print CGI::div(CGI::div({-bgcolor=>"black"}));
  801   #print CGI::hr();
  802 
  803   $self->browse_mysets_panel($library_selected, $list_of_local_sets, $remember_local_set);
  804 }
  805 
  806 sub make_top_row {
  807   my $self = shift;
  808   my $r = $self->r;
  809   my $ce = $r->ce;
  810   my %data = @_;
  811 
  812   my $list_of_local_sets = $data{all_db_sets};
  813   my $have_local_sets = scalar(@$list_of_local_sets);
  814   my $browse_which = $data{browse_which};
  815   my $library_selected = $self->{current_library_set};
  816   my $set_selected = $r->param('local_sets');
  817   my (@dis1, @dis2, @dis3, @dis4) = ();
  818   @dis1 =  (-disabled=>1) if($browse_which eq 'browse_npl_library');
  819   @dis2 =  (-disabled=>1) if($browse_which eq 'browse_local');
  820   @dis3 =  (-disabled=>1) if($browse_which eq 'edit_mysets');
  821   @dis4 =  (-disabled=>1) if($browse_which eq 'browse_setdefs');
  822 
  823   ##  Make buttons for additional problem libraries
  824   my $libs = '';
  825   foreach my $lib (sort(keys(%problib))) {
  826     $libs .= ' '. CGI::submit(-name=>"browse_$lib", -value=>$problib{$lib},
  827                                  ($browse_which eq "browse_$lib")? (-disabled=>1): ())
  828       if (-d "$ce->{courseDirs}{templates}/$lib");
  829   }
  830   $libs = CGI::br()."or Problems from".$libs if $libs ne '';
  831 
  832   my $these_widths = "width: 25ex";
  833 
  834   if($have_local_sets ==0) {
  835     $list_of_local_sets = [NO_LOCAL_SET_STRING];
  836   } elsif (not defined($set_selected) or $set_selected eq ""
  837     or $set_selected eq SELECT_SET_STRING) {
  838     unshift @{$list_of_local_sets}, SELECT_SET_STRING;
  839     $set_selected = SELECT_SET_STRING;
  840   }
  841   my $myjs = 'document.mainform.selfassign.value=confirm("Should I assign the new set to you now?\nUse OK for yes and Cancel for no.");true;';
  842 ## edited this, as a demo for the current set problem list
  843   print CGI::div({-class=>"InfoPanel", -align=>"left"},
  844     CGI::submit(-name=>"new_local_set", -value=>"Create a New Set in This Course:",
  845     -onclick=>$myjs
  846     ),
  847     "  ",
  848     CGI::textfield(-name=>"new_set_name",
  849              -default=>"Name for new set here",
  850              -override=>1, -size=>30),
  851   );
  852 
  853   # Tidy this list up since it is used in two different places
  854   if ($list_of_local_sets->[0] eq SELECT_SET_STRING) {
  855     shift @{$list_of_local_sets};
  856   }
  857 
  858   print CGI::div({-class=>"InfoPanel", -align=>"center"},
  859     "Browse ",
  860     CGI::submit(-name=>"browse_npl_library", -value=>"National Problem Library", -style=>$these_widths, @dis1),
  861     CGI::submit(-name=>"browse_local", -value=>"Local Problems", -style=>$these_widths, @dis2),
  862     CGI::submit(-name=>"edit_mysets", -value=>"From This Course", -style=>$these_widths, @dis3),
  863     CGI::submit(-name=>"browse_setdefs", -value=>"Set Definition Files", -style=>$these_widths, @dis4),
  864     $libs,
  865   );
  866 
  867   if ($browse_which eq 'browse_local') {
  868     $self->browse_local_panel($library_selected);
  869   } elsif ($browse_which eq 'edit_mysets') {
  870     $self->edit_mysets_panel($library_selected, $list_of_local_sets);
  871   } elsif ($browse_which eq 'browse_npl_library') {
  872     $self->browse_library_panel();
  873   } elsif ($browse_which eq 'browse_setdefs') {
  874     $self->browse_setdef_panel($library_selected);
  875   } else { ## handle other problem libraries
  876     $self->browse_local_panel($library_selected,$browse_which);
  877   }
  878 
  879   print CGI::div({-class=>"InfoPanel", -align=>"center"},
  880              CGI::submit(-name=>"select_all", -style=>$these_widths,
  881                   -value=>"Mark All For Adding"),
  882              CGI::submit(-name=>"select_none", -style=>$these_widths,
  883                   -value=>"Clear All Marks"),
  884          ),
  885     CGI::div({},
  886         CGI::submit(-name=>"rerandomize",
  887                     -style=>$these_widths,
  888                     -value=>"Rerandomize"),
  889         CGI::submit(-name=>"cleardisplay",
  890                 -style=>$these_widths,
  891                 -value=>"Clear Problem Display")
  892     );
  893 }
  894 
  895 sub make_data_row {
  896   my $self = shift;
  897   my $sourceFileName = shift;
  898   my $pg = shift;
  899   my $cnt = shift;
  900   my $mark = shift || 0;
  901 
  902   $sourceFileName =~ s|^./||; # clean up top ugliness
  903 
  904   my $urlpath = $self->r->urlpath;
  905   my $db = $self->r->db;
  906 
  907   ## to set up edit and try links elegantly we want to know if
  908   ##    any target set is a gateway assignment or not
  909   my $localSet = $self->r->param('local_sets');
  910   my $setRecord;
  911   if ( defined($localSet) && $localSet ne SELECT_SET_STRING &&
  912        $localSet ne NO_LOCAL_SET_STRING ) {
  913     $setRecord = $db->getGlobalSet( $localSet );
  914   }
  915   my $isGatewaySet = ( defined($setRecord) &&
  916            $setRecord->assignment_type =~ /gateway/ );
  917 
  918   my $problem_output = $pg->{flags}->{error_flag} ?
  919     CGI::div({class=>"ResultsWithError"}, CGI::em("This problem produced an error"))
  920     : CGI::div({class=>"RenderSolo"}, $pg->{body_text});
  921   $problem_output .= $pg->{flags}->{comment} if($pg->{flags}->{comment});
  922 
  923 
  924   #if($self->{r}->param('browse_which') ne 'browse_npl_library') {
  925   my $problem_seed = $self->{'problem_seed'} || 1234;
  926   my $edit_link = CGI::a({href=>$self->systemLink(
  927      $urlpath->newFromModule("WeBWorK::ContentGenerator::Instructor::PGProblemEditor",
  928         courseID =>$urlpath->arg("courseID"),
  929         setID=>"Undefined_Set",
  930         problemID=>"1"),
  931       params=>{sourceFilePath => "$sourceFileName", problemSeed=> $problem_seed}
  932       ), target=>"WW_Editor"}, "Edit it" );
  933 
  934   my $displayMode = $self->r->param("mydisplayMode");
  935   $displayMode = $self->r->ce->{pg}->{options}->{displayMode}
  936     if not defined $displayMode or $displayMode eq "None";
  937   my $module = ( $isGatewaySet ) ? "GatewayQuiz" : "Problem";
  938   my %pathArgs = ( courseID =>$urlpath->arg("courseID"),
  939       setID=>"Undefined_Set" );
  940   $pathArgs{problemID} = "1" if ( ! $isGatewaySet );
  941 
  942   my $try_link = CGI::a({href=>$self->systemLink(
  943     $urlpath->newFromModule("WeBWorK::ContentGenerator::$module",
  944       %pathArgs ),
  945       params =>{
  946         effectiveUser => scalar($self->r->param('user')),
  947         editMode => "SetMaker",
  948         problemSeed=> $problem_seed,
  949         sourceFilePath => "$sourceFileName",
  950         displayMode => $displayMode,
  951       }
  952     ), target=>"WW_View"}, "Try it");
  953 
  954   my %add_box_data = ( -id=>"trial$cnt" ,-name=>"trial$cnt",-value=>1,-label=>"Add this problem to the target set on the next update");
  955   #allow for a move command from one problem set to anoter
  956   my $move_box_data;
  957   if($self->r->param('edit_mysets_set')){
  958     $move_box_data = CGI::checkbox( -id=>"moved$cnt" ,-name=>"moved$cnt",-value=>1,,-override=>1,-label=>"Move this problem from this set to the target set on the next update");
  959   }
  960   else{
  961     $move_box_data = "";
  962   }
  963   if($mark & SUCCESS) {
  964     $add_box_data{ -label } .= " (just added this problem)";
  965   } elsif($mark & ADDED) {
  966     $add_box_data{ -checked } = 1;
  967   }
  968 
  969   if(!($self->{isInSet}{$sourceFileName})){
  970 
  971     print CGI::div({-align=>"left", -draggable=>"true", -href=>"#", -id=>"$cnt"},
  972       CGI::div({-style=>"background-color: #DDDDDD; margin: 0px auto"},
  973         CGI::span({-style=>"float:left ; text-align: left"},"File name: $sourceFileName "),
  974         CGI::span({-style=>"float:right ; text-align: right"}, $edit_link, " ", $try_link)
  975       ), CGI::br(),
  976       CGI::checkbox(-id=>"hideme$cnt", -name=>"hideme$cnt",-value=>1,-label=>"Don't show this problem on the next update",-override=>1),
  977       CGI::br(),
  978       CGI::checkbox((%add_box_data),-override=>1),
  979       $move_box_data,
  980       CGI::hidden(-name=>"filetrial$cnt", -default=>$sourceFileName,-override=>1).
  981       CGI::p($problem_output)
  982     );
  983   }
  984   else{
  985     print CGI::div({-class=>"used", -align=>"left", -draggable=>"true", -href=>"#", -id=>"$cnt"},
  986       CGI::div({-style=>"background-color: #AAAAA; margin: 0px auto"},
  987         CGI::span({-style=>"float:left ; text-align: left"},"File name: $sourceFileName "),
  988         CGI::span({-style=>"float:right ; text-align: right"}, $edit_link, " ", $try_link)
  989       ), CGI::br(),
  990       CGI::checkbox(-id=>"hideme$cnt", -name=>"hideme$cnt",-value=>1,-label=>"Don't show this problem on the next update",-override=>1),
  991       CGI::br(),
  992       CGI::checkbox((%add_box_data),-override=>1),
  993       $move_box_data,
  994       CGI::hidden(-name=>"filetrial$cnt", -default=>$sourceFileName,-override=>1).
  995       CGI::p($problem_output),
  996       CGI::b("(This problem is in the target set)")
  997     );
  998   }
  999 }
 1000 
 1001 sub make_myset_data_row {
 1002   my $self = shift;
 1003   my $sourceFileName = shift;
 1004   my $pg = shift;
 1005   my $cnt = shift;
 1006   my $mark = shift || 0;
 1007 
 1008   $sourceFileName =~ s|^./||; # clean up top ugliness
 1009 
 1010   my $urlpath = $self->r->urlpath;
 1011   my $db = $self->r->db;
 1012 
 1013   ## to set up edit and try links elegantly we want to know if
 1014   ##    any target set is a gateway assignment or not
 1015   my $localSet = $self->r->param('local_sets');
 1016   my $setRecord;
 1017   if ( defined($localSet) && $localSet ne SELECT_SET_STRING &&
 1018        $localSet ne NO_LOCAL_SET_STRING ) {
 1019     $setRecord = $db->getGlobalSet( $localSet );
 1020   }
 1021   my $isGatewaySet = ( defined($setRecord) &&
 1022            $setRecord->assignment_type =~ /gateway/ );
 1023 
 1024   my $problem_output = $pg->{flags}->{error_flag} ?
 1025     CGI::div({class=>"ResultsWithError"}, CGI::em("This problem produced an error"))
 1026     : CGI::div({class=>"RenderSolo"}, $pg->{body_text});
 1027   $problem_output .= $pg->{flags}->{comment} if($pg->{flags}->{comment});
 1028 
 1029 
 1030   #if($self->{r}->param('browse_which') ne 'browse_npl_library') {
 1031   my $problem_seed = $self->{'problem_seed'} || 1234;
 1032   my $edit_link = CGI::a({href=>$self->systemLink(
 1033      $urlpath->newFromModule("WeBWorK::ContentGenerator::Instructor::PGProblemEditor",
 1034         courseID =>$urlpath->arg("courseID"),
 1035         setID=>"Undefined_Set",
 1036         problemID=>"1"),
 1037       params=>{sourceFilePath => "$sourceFileName", problemSeed=> $problem_seed}
 1038       ), target=>"WW_Editor"}, "Edit it" );
 1039 
 1040   my %delete_box_data = ( -id=>"deleted$cnt".'myset' ,-name=>"deleted$cnt",-value=>1,-label=>"Delete this problem from the target set on the next update");
 1041 
 1042   my $displayMode = $self->r->param("mydisplayMode");
 1043   $displayMode = $self->r->ce->{pg}->{options}->{displayMode}
 1044     if not defined $displayMode or $displayMode eq "None";
 1045   my $module = ( $isGatewaySet ) ? "GatewayQuiz" : "Problem";
 1046   my %pathArgs = ( courseID =>$urlpath->arg("courseID"),
 1047       setID=>"Undefined_Set" );
 1048   $pathArgs{problemID} = "1" if ( ! $isGatewaySet );
 1049 
 1050   my $try_link = CGI::a({href=>$self->systemLink(
 1051     $urlpath->newFromModule("WeBWorK::ContentGenerator::$module",
 1052       %pathArgs ),
 1053       params =>{
 1054         effectiveUser => scalar($self->r->param('user')),
 1055         editMode => "SetMaker",
 1056         problemSeed=> $problem_seed,
 1057         sourceFilePath => "$sourceFileName",
 1058         displayMode => $displayMode,
 1059       }
 1060     ), target=>"WW_View"}, "Try it");
 1061 
 1062   print CGI::div({-class=>"problem myProblem", -draggable=>"true", -href=>"#", -id=>("$cnt".'myset')},
 1063     CGI::div({-style=>"background-color: #DDDDDD; margin: 0px auto"},
 1064       CGI::span({-style=>"float:left ; text-align: left"},"File name: $sourceFileName "),
 1065       CGI::span({-style=>"float:right ; text-align: right"}, $edit_link, " ", $try_link)
 1066     ), CGI::br(),
 1067     CGI::br(),
 1068     CGI::checkbox((%delete_box_data),-override=>1),
 1069     CGI::hidden(-name=>"mysetfiletrial$cnt", -default=>$sourceFileName,-override=>1).
 1070     CGI::p($problem_output),
 1071   );
 1072 }
 1073 
 1074 sub clear_default {
 1075   my $r = shift;
 1076   my $param = shift;
 1077   my $default = shift;
 1078   my $newvalue = $r->param($param) || '';
 1079   $newvalue = '' if($newvalue eq $default);
 1080   $r->param($param, $newvalue);
 1081 }
 1082 
 1083 sub pre_header_initialize {
 1084   my ($self) = @_;
 1085   my $r = $self->r;
 1086   ## For all cases, lets set some things
 1087   $self->{error}=0;
 1088   my $ce = $r->ce;
 1089   my $db = $r->db;
 1090   my $maxShown = $r->param('max_shown') || MAX_SHOW_DEFAULT;
 1091   $maxShown = 10000000 if($maxShown eq 'All'); # let's hope there aren't more
 1092   my $library_basic = $r->param('library_is_basic') || 1;
 1093   $self->{problem_seed} = $r->param('problem_seed') || 1234;
 1094   ## Fix some parameters
 1095   for my $key (keys(%{ LIB2_DATA() })) {
 1096     clear_default($r, LIB2_DATA->{$key}->{name}, LIB2_DATA->{$key}->{all} );
 1097   }
 1098     ##  Grab library sets to display from parameters list.  We will modify this
 1099     ##  as we go through the if/else tree
 1100     $self->{current_library_set} =  $r->param('library_sets');
 1101     $self->{current_myset_set} = $r->param('myset_sets');
 1102     if (not defined($self->{current_myset_set})
 1103     or $self->{current_myset_set} eq "Select a Homework Set"
 1104     or $self->{current_myset_set} eq NO_LOCAL_SET_STRING) {
 1105       my @all_db_sets = $db->listGlobalSets;
 1106       @all_db_sets = sortByName(undef, @all_db_sets);
 1107       $self->{current_myset_set} = shift(@all_db_sets);
 1108     }
 1109 
 1110   ##  These directories will have individual buttons
 1111   %problib = %{$ce->{courseFiles}{problibs}} if $ce->{courseFiles}{problibs};
 1112 
 1113   my $userName = $r->param('user');
 1114   my $user = $db->getUser($userName); # checked
 1115   die "record for user $userName (real user) does not exist."
 1116     unless defined $user;
 1117   my $authz = $r->authz;
 1118   unless ($authz->hasPermissions($userName, "modify_problem_sets")) {
 1119     return(""); # Error message already produced in the body
 1120   }
 1121 
 1122   ## Now one action we have to deal with here
 1123   if ($r->param('edit_local')) {
 1124     my $urlpath = $r->urlpath;
 1125     my $db = $r->db;
 1126     my $checkset = $db->getGlobalSet($r->param('local_sets'));
 1127     if (not defined($checkset)) {
 1128       $self->{error} = 1;
 1129       $self->addbadmessage('You need to select a "Target Set" before you can edit it.');
 1130     } else {
 1131       my $page = $urlpath->newFromModule('WeBWorK::ContentGenerator::Instructor::ProblemSetDetail', setID=>$r->param('local_sets'), courseID=>$urlpath->arg("courseID"));
 1132       my $url = $self->systemLink($page);
 1133       $self->reply_with_redirect($url);
 1134     }
 1135   }
 1136 
 1137   ## Next, lots of set up so that errors can be reported with message()
 1138 
 1139   ############# List of problems we have already printed
 1140 
 1141   $self->{past_problems} = get_past_problem_files($r);
 1142   # if we don't end up reusing problems, this will be wiped out
 1143   # if we do redisplay the same problems, we must adjust this accordingly
 1144   my @past_marks = map {$_->[1]} @{$self->{past_problems}};
 1145   my $none_shown = scalar(@{$self->{past_problems}})==0;
 1146   my @pg_files=();
 1147   my @myset_files=();
 1148   my $use_previous_problems = 1;
 1149   my $first_shown = $r->param('first_shown') || 0;
 1150   my $last_shown = $r->param('last_shown');
 1151   if (not defined($last_shown)) {
 1152     $last_shown = -1;
 1153   }
 1154   my @all_past_list = (); # these are include requested, but not shown
 1155   my $j = 0;
 1156   while (defined($r->param("all_past_list$j"))) {
 1157     push @all_past_list, $r->param("all_past_list$j");
 1158     $j++;
 1159   }
 1160 
 1161   ############# Default of which problem selector to display
 1162 
 1163   my $browse_which = $r->param('browse_which') || 'browse_npl_library';
 1164 
 1165 
 1166 
 1167   ## check for problem lib buttons
 1168   my $browse_lib = '';
 1169   foreach my $lib (keys %problib) {
 1170     if ($r->param("browse_$lib")) {
 1171       $browse_lib = "browse_$lib";
 1172       last;
 1173     }
 1174   }
 1175 
 1176 
 1177   ########### Start the logic through if elsif elsif ...
 1178     debug("browse_lib", $r->param("$browse_lib"));
 1179     debug("browse_npl_library", $r->param("browse_npl_library"));
 1180     debug("edit_mysets", $r->param("edit_mysets"));
 1181     debug("browse_setdefs", $r->param("browse_setdefs"));
 1182   ##### Asked to browse certain problems
 1183   if ($browse_lib ne '') {
 1184     $browse_which = $browse_lib;
 1185     $self->{current_library_set} = "";
 1186     $use_previous_problems = 0; @pg_files = (); ## clear old problems
 1187   } elsif ($r->param('browse_npl_library')) {
 1188     $browse_which = 'browse_npl_library';
 1189     $self->{current_library_set} = "";
 1190     $use_previous_problems = 0; @pg_files = (); ## clear old problems
 1191   } elsif ($r->param('browse_local')) {
 1192     $browse_which = 'browse_local';
 1193     #$self->{current_library_set} = "";
 1194     $use_previous_problems = 0; @pg_files = (); ## clear old problems
 1195   } elsif ($r->param('edit_mysets')) {
 1196     $browse_which = 'edit_mysets';
 1197     $self->{current_library_set} = "";
 1198     $use_previous_problems = 0; @pg_files = (); ## clear old problems
 1199   } elsif ($r->param('browse_setdefs')) {
 1200     $browse_which = 'browse_setdefs';
 1201     $self->{current_library_set} = "";
 1202     $use_previous_problems = 0; @pg_files = (); ## clear old problems
 1203 
 1204     ##### Change the seed value
 1205 
 1206   } elsif ($r->param('rerandomize')) {
 1207     $self->{problem_seed}= 1+$self->{problem_seed};
 1208     #$r->param('problem_seed', $problem_seed);
 1209     $self->addbadmessage('Changing the problem seed for display, but there are no problems showing.') if $none_shown;
 1210 
 1211     ##### Clear the display
 1212 
 1213   } elsif ($r->param('cleardisplay')) {
 1214     @pg_files = ();
 1215     $use_previous_problems=0;
 1216     $self->addbadmessage('The display was already cleared.') if $none_shown;
 1217 
 1218     ##### View problems selected from the local list
 1219 
 1220   } elsif ($r->param('view_local_set')) {
 1221 
 1222     my $set_to_display = $self->{current_library_set};
 1223     if (not defined($set_to_display) or $set_to_display eq SELECT_LOCAL_STRING or $set_to_display eq "Found no directories containing problems") {
 1224       $self->addbadmessage('You need to select a set to view.');
 1225     } else {
 1226       $set_to_display = '.' if $set_to_display eq MY_PROBLEMS;
 1227       $set_to_display = substr($browse_which,7) if $set_to_display eq MAIN_PROBLEMS;
 1228       @pg_files = list_pg_files($ce->{courseDirs}->{templates},
 1229         "$set_to_display");
 1230       $use_previous_problems=0;
 1231     }
 1232 
 1233     ##### View problems selected from the a set in this course
 1234   } elsif ($r->param('edit_mysets_set')){
 1235 
 1236     my $set_to_display = $self->{current_library_set};
 1237       debug("set_to_display is $set_to_display");
 1238       if (not defined($set_to_display)
 1239           or $set_to_display eq "Select a Homework Set"
 1240           or $set_to_display eq NO_LOCAL_SET_STRING) {
 1241         $self->addbadmessage("You need to select a set from this course to view.");
 1242       } else {
 1243         # DBFIXME don't use ID list, use an iterator
 1244         my @problemList = $db->listGlobalProblems($set_to_display);
 1245         my $problem;
 1246         @pg_files=();
 1247         for $problem (@problemList) {
 1248           my $problemRecord = $db->getGlobalProblem($set_to_display, $problem); # checked
 1249           die "global $problem for set $set_to_display not found." unless
 1250             $problemRecord;
 1251           push @pg_files, $problemRecord->source_file;
 1252 
 1253         }
 1254         @pg_files = sortByName(undef,@pg_files);
 1255         $use_previous_problems=0;
 1256       }
 1257 
 1258     ##### View from the library database
 1259 
 1260   } elsif ($r->param('lib_view')) {
 1261     @pg_files=();
 1262     my @dbsearch = WeBWorK::Utils::ListingDB::getSectionListings($r);
 1263     my ($result, $tolibpath);
 1264     for $result (@dbsearch) {
 1265       $tolibpath = "Library/$result->{path}/$result->{filename}";
 1266 
 1267       ## Too clunky!!!!
 1268       push @pg_files, $tolibpath;
 1269     }
 1270     $use_previous_problems=0;
 1271 
 1272     ##### View a set from a set*.def
 1273 
 1274   } elsif ($r->param('view_setdef_set')) {
 1275 
 1276     my $set_to_display = $self->{current_library_set};
 1277     debug("set_to_display is $set_to_display");
 1278     if (not defined($set_to_display)
 1279         or $set_to_display eq "Select a Set Definition File"
 1280         or $set_to_display eq NO_LOCAL_SET_STRING) {
 1281       $self->addbadmessage("You need to select a set definition file to view.");
 1282     } else {
 1283       @pg_files= $self->read_set_def($set_to_display);
 1284     }
 1285     $use_previous_problems=0;
 1286 
 1287     ##### Edit the current local homework set
 1288 
 1289   } elsif ($r->param('edit_local')) { ## Jump to set edit page
 1290 
 1291     ; # already handled
 1292 
 1293 
 1294     ##### Make a new local homework set
 1295 
 1296   } elsif ($r->param('new_local_set')) {
 1297     if ($r->param('new_set_name') !~ /^[\w .-]*$/) {
 1298       $self->addbadmessage("The name ".$r->param('new_set_name')." is not a valid set name.  Use only letters, digits, -, _, and .");
 1299     } else {
 1300       my $newSetName = $r->param('new_set_name');
 1301       # if we want to munge the input set name, do it here
 1302       $newSetName =~ s/\s/_/g;
 1303       debug("local_sets was ", $r->param('local_sets'));
 1304       $r->param('local_sets',$newSetName);  ## use of two parameter param
 1305       debug("new value of local_sets is ", $r->param('local_sets'));
 1306       my $newSetRecord   = $db->getGlobalSet($newSetName);
 1307       if (defined($newSetRecord)) {
 1308               $self->addbadmessage("The set name $newSetName is already in use.
 1309               Pick a different name if you would like to start a new set.");
 1310       } else {      # Do it!
 1311         # DBFIXME use $db->newGlobalSet
 1312         $newSetRecord = $db->{set}->{record}->new();
 1313         $newSetRecord->set_id($newSetName);
 1314         $newSetRecord->set_header("");
 1315         $newSetRecord->hardcopy_header("");
 1316         $newSetRecord->open_date(time()+60*60*24*7); # in one week
 1317         $newSetRecord->due_date(time()+60*60*24*7*2); # in two weeks
 1318         $newSetRecord->answer_date(time()+60*60*24*7*3); # in three weeks
 1319         eval {$db->addGlobalSet($newSetRecord)};
 1320         if ($@) {
 1321           $self->addbadmessage("Problem creating set $newSetName<br> $@");
 1322         } else {
 1323           $self->addgoodmessage("Set $newSetName has been created.");
 1324           my $selfassign = $r->param('selfassign') || "";
 1325           $selfassign = "" if($selfassign =~ /false/i); # deal with javascript false
 1326           if($selfassign) {
 1327             $self->assignSetToUser($userName, $newSetRecord);
 1328             $self->addgoodmessage("Set $newSetName was assigned to $userName.");
 1329           }
 1330         }
 1331       }
 1332     }
 1333 
 1334     ##### Add selected problems to the current local set
 1335 
 1336   } elsif ($r->param('update')) {
 1337     ## first handle problems to be added before we hide them
 1338     my($localSet, @selected);
 1339 
 1340     my @add_pg_files = grep {(($_->[1] & ADDED)) != 0 } @{$self->{past_problems}};
 1341     my @add_selected = map {$_->[0]} @add_pg_files;
 1342 
 1343     my @delete_pg_files = grep {(($_->[1] & DELETED)) != 0} @{$self->{past_problems}};
 1344     my @delete_selected = map {$_->[0]} @delete_pg_files;
 1345 
 1346     my @move_pg_files = grep {(($_->[1] & MOVED)) != 0} @{$self->{past_problems}};
 1347     my @move_selected = map {$_->[0]} @move_pg_files;
 1348 
 1349     my @action_files = grep {$_->[1] > 0 } @{$self->{past_problems}};
 1350     # There are now good reasons to do an update without selecting anything.
 1351     #if(scalar(@action_files) == 0) {
 1352     #  $self->addbadmessage('Update requested, but no problems were marked.');
 1353     #}
 1354 
 1355     if (scalar(@add_selected)>0) {  # if some are to be added, they need a place to go
 1356       $localSet = $r->param('myset_sets');
 1357       if (not defined($localSet) or
 1358           $localSet eq SELECT_SET_STRING or
 1359                 $localSet eq NO_LOCAL_SET_STRING) {
 1360         $self->addbadmessage('You are trying to add problems to something,
 1361         but you did not select a "Target Set" name as a target.');
 1362       } else {
 1363         my $newSetRecord  = $db->getGlobalSet($localSet);
 1364         if (not defined($newSetRecord)) {
 1365           $self->addbadmessage("You are trying to add problems to $localSet,
 1366           but that set does not seem to exist!  I bet you used your \"Back\" button.");
 1367         } else {
 1368           my $addcount = add_selected($self, $db, $localSet);
 1369           if($addcount > 0) {
 1370             $self->addgoodmessage("Added $addcount problem".(($addcount>1)?'s':'').
 1371               " to $localSet.");
 1372           }
 1373         }
 1374       }
 1375     }
 1376     if (scalar(@delete_selected)>0) { # if some are to be added, they need a place to go
 1377       $localSet = $r->param('myset_sets');
 1378       if (not defined($localSet) or
 1379           $localSet eq SELECT_SET_STRING or
 1380                 $localSet eq NO_LOCAL_SET_STRING) {
 1381         $self->addbadmessage('You are trying to add problems to something,
 1382         but you did not select a "Target Set" name as a target.');
 1383       } else {
 1384         my $newSetRecord  = $db->getGlobalSet($localSet);
 1385         if (not defined($newSetRecord)) {
 1386           $self->addbadmessage("You are trying to delete problems to $localSet,
 1387           but that set does not seem to exist!  I bet you used your \"Back\" button.");
 1388         } else {
 1389           my $deletecount = delete_selected($self, $db, $localSet);
 1390           if($deletecount > 0) {
 1391             $self->addgoodmessage("Deleted $deletecount problem".(($deletecount>1)?'s':'').
 1392               " to $localSet.");
 1393           }
 1394         }
 1395       }
 1396     }
 1397     if (scalar(@move_selected)>0) { # if some are to be added, they need a place to go
 1398       $localSet = $r->param('myset_sets');
 1399       my $otherSet = $self->{current_library_set};
 1400       if (not defined($localSet) or not defined($otherSet) or
 1401           $localSet eq SELECT_SET_STRING or
 1402                 $localSet eq NO_LOCAL_SET_STRING) {
 1403         $self->addbadmessage('You are trying to add problems to something,
 1404         but you did not select a "Target Set" name as a target.');
 1405       } else {
 1406         my $newSetRecord  = $db->getGlobalSet($localSet);
 1407         my $otherNewSetRecord = $db->getGlobalSet($otherSet);
 1408         if (not defined($newSetRecord) or not defined($otherNewSetRecord)) {
 1409           $self->addbadmessage("You are trying to move problems from $otherNewSetRecord to $localSet,
 1410           but that set does not seem to exist!  I bet you used your \"Back\" button.");
 1411         } else {
 1412           my $addcount = add_selected($self, $db, $localSet);
 1413           my $deletecount = delete_selected($self, $db, $otherSet);
 1414           if($addcount > 0) {
 1415             $self->addgoodmessage("Added $addcount problem".(($addcount>1)?'s':'').
 1416               " to $localSet.");
 1417           }
 1418           if($deletecount > 0) {
 1419             $self->addgoodmessage("Deleted $deletecount problem".(($deletecount>1)?'s':'').
 1420               " to $localSet.");
 1421           }
 1422         }
 1423       }
 1424     }
 1425     ## now handle problems to be hidden
 1426 
 1427     ## only keep the ones which are not hidden
 1428     @pg_files = grep {($_->[1] & HIDDEN) ==0 } @{$self->{past_problems}};
 1429     @pg_files = grep {(($_->[1] & DELETED)) != 0 } @pg_files;
 1430     @past_marks = map {$_->[1]} @pg_files;
 1431     @pg_files = map {$_->[0]} @pg_files;
 1432     @all_past_list = (@all_past_list[0..($first_shown-1)],
 1433           @pg_files,
 1434           @all_past_list[($last_shown+1)..(scalar(@all_past_list)-1)]);
 1435     $last_shown = $first_shown+$maxShown -1; debug("last_shown 3: ", $last_shown);
 1436     $last_shown = (scalar(@all_past_list)-1) if($last_shown>=scalar(@all_past_list)); debug("last_shown 4: ", $last_shown);
 1437 
 1438   } elsif ($r->param('next_page')) {
 1439     $first_shown = $last_shown+1;
 1440     $last_shown = $first_shown+$maxShown-1; debug("last_shown 5: ", $last_shown);
 1441     $last_shown = (scalar(@all_past_list)-1) if($last_shown>=scalar(@all_past_list)); debug("last_shown 6: ", $last_shown);
 1442     @past_marks = ();
 1443   } elsif ($r->param('prev_page')) {
 1444     $last_shown = $first_shown-1;
 1445     $first_shown = $last_shown - $maxShown+1;
 1446 
 1447     $first_shown = 0 if($first_shown<0);
 1448     @past_marks = ();
 1449 
 1450   } elsif ($r->param('select_all')) {
 1451     @past_marks = map {1} @past_marks;
 1452   } elsif ($r->param('library_basic')) {
 1453     $library_basic = 1;
 1454     for my $jj (qw(textchapter textsection textbook)) {
 1455       $r->param('library_'.$jj,'');
 1456     }
 1457   } elsif ($r->param('library_advanced')) {
 1458     $library_basic = 2;
 1459   } elsif ($r->param('library_reset')) {
 1460     for my $jj (qw(chapters sections subjects textbook keywords)) {
 1461       $r->param('library_'.$jj,'');
 1462     }
 1463   } elsif ($r->param('select_none')) {
 1464     @past_marks = ();
 1465   } else {
 1466     #nothing
 1467   }       ##### end of the if elsif ...
 1468 
 1469   my $default_set = $self->{current_myset_set};
 1470     #debug("set_to_display is $default_set");
 1471     if (not defined($default_set)
 1472       or $default_set eq "Select a Homework Set"
 1473       or $default_set eq NO_LOCAL_SET_STRING) {
 1474       $self->addbadmessage("You need to select a set from this course to view.");
 1475     } else {
 1476       # DBFIXME don't use ID list, use an iterator
 1477       my @problemList = $db->listGlobalProblems($default_set);
 1478       my $problem;
 1479       @myset_files=();
 1480       for $problem (@problemList) {
 1481         my $problemRecord = $db->getGlobalProblem($default_set, $problem); # checked
 1482         die "global $problem for set $default_set not found." unless
 1483           $problemRecord;
 1484         push @myset_files, $problemRecord->source_file;
 1485 
 1486       }
 1487       @myset_files = sortByName(undef,@myset_files);
 1488       $use_previous_problems=0;
 1489     }
 1490 
 1491   ############# List of local sets
 1492 
 1493   # DBFIXME sorting in database, please!
 1494   my @all_db_sets = $db->listGlobalSets;
 1495   @all_db_sets = sortByName(undef, @all_db_sets);
 1496 
 1497   if ($use_previous_problems) {
 1498     @pg_files = @all_past_list;
 1499   } else {
 1500     $first_shown = 0;
 1501     $last_shown = scalar(@pg_files)<$maxShown ? scalar(@pg_files) : $maxShown;
 1502     $last_shown--;    # to make it an array index
 1503     @past_marks = ();
 1504   }
 1505   ############# Now store data in self for retreival by body
 1506   $self->{first_shown} = $first_shown;
 1507   $self->{last_shown} = $last_shown;
 1508   $self->{browse_which} = $browse_which;
 1509   #$self->{problem_seed} = $problem_seed;
 1510   $self->{pg_files} = \@pg_files;
 1511   $self->{myset_files} = \@myset_files;
 1512   $self->{past_marks} = \@past_marks;
 1513   $self->{all_db_sets} = \@all_db_sets;
 1514   $self->{library_basic} = $library_basic;
 1515   debug("past_marks is ", join(" ", @{$self->{past_marks}}));
 1516 }
 1517 
 1518 
 1519 sub title {
 1520   return "Library Browser v2";
 1521 }
 1522 
 1523 # hide view options panel since it distracts from SetMaker's built-in view options
 1524 sub options {
 1525   return "";
 1526 }
 1527 
 1528 sub head {
 1529   print '<script src="/webwork2_files/js/dnd.js"></script>';
 1530   print '<link rel="stylesheet" type="text/css" href="/webwork2_files/css/setmaker2.css" />';
 1531   print '<script>window.addEventListener("load", setup, false);</script>';
 1532   return "";
 1533 }
 1534 
 1535 sub body {
 1536   my ($self) = @_;
 1537 
 1538   my $r = $self->r;
 1539   my $ce = $r->ce;    # course environment
 1540   my $db = $r->db;    # database
 1541   my $j;      # garden variety counter
 1542 
 1543   my $userName = $r->param('user');
 1544 
 1545   my $user = $db->getUser($userName); # checked
 1546   die "record for user $userName (real user) does not exist."
 1547     unless defined $user;
 1548 
 1549   ### Check that this is a professor
 1550   my $authz = $r->authz;
 1551   unless ($authz->hasPermissions($userName, "modify_problem_sets")) {
 1552     print "User $userName returned " .
 1553       $authz->hasPermissions($user, "modify_problem_sets") .
 1554   " for permission";
 1555     return(CGI::div({class=>'ResultsWithError'},
 1556     CGI::em("You are not authorized to access the Instructor tools.")));
 1557   }
 1558 
 1559   my $showHints = $r->param('showHints');
 1560   my $showSolutions = $r->param('showSolutions');
 1561 
 1562   ##########  Extract information computed in pre_header_initialize
 1563 
 1564   my $first_shown = $self->{first_shown};
 1565   my $last_shown = $self->{last_shown};
 1566   my $browse_which = $self->{browse_which};
 1567   my $problem_seed = $self->{problem_seed}||1234;
 1568   my @pg_files = @{$self->{pg_files}};
 1569   my @myset_files =@{$self->{myset_files}};
 1570   my @all_db_sets = @{$self->{all_db_sets}};
 1571 
 1572   my @pg_html;
 1573   if ($last_shown >= $first_shown) {
 1574     @pg_html = renderProblems(
 1575       r=> $r,
 1576       user => $user,
 1577       problem_list => [@pg_files[$first_shown..$last_shown]],
 1578       displayMode => $r->param('mydisplayMode'),
 1579       showHints => $showHints,
 1580       showSolutions => $showSolutions,
 1581     );
 1582   }
 1583   my @myset_html;
 1584   my $displayModePlaceholder;
 1585   if (not defined($r->param('mydisplayMode'))){
 1586     $displayModePlaceholder = "None";
 1587   }
 1588   else{
 1589     $displayModePlaceholder = $r->param('mydisplayMode');
 1590   }
 1591   if (scalar(@myset_files) >= $first_shown) {
 1592     @myset_html = renderProblems(
 1593       r=> $r,
 1594       user => $user,
 1595       problem_list => [@myset_files[$first_shown..(scalar(@myset_files)-1)]],
 1596       displayMode => $displayModePlaceholder,
 1597       showHints => $showHints,
 1598       showSolutions => $showSolutions,
 1599     );
 1600   }
 1601 
 1602   my %isInSet;
 1603   my $setName = $r->param("myset_sets");
 1604   if ($setName) {
 1605     # DBFIXME where clause, iterator
 1606     # DBFIXME maybe instead of hashing here, query when checking source files?
 1607     # DBFIXME definitely don't need to be making full record objects
 1608     # DBFIXME SELECT source_file FROM whatever_problem WHERE set_id=? GROUP BY source_file ORDER BY NULL;
 1609     # DBFIXME (and stick result directly into hash)
 1610     foreach my $problem ($db->listGlobalProblems($setName)) {
 1611       my $problemRecord = $db->getGlobalProblem($setName, $problem);
 1612       $isInSet{$problemRecord->source_file} = 1;
 1613     }
 1614   }
 1615   $self->{isInSet} = \%isInSet;
 1616   my $jj;
 1617   ##########  Top part
 1618   print '<div id="editor-form">';
 1619 
 1620   print CGI::start_form({-method=>"POST", -action=>$r->uri, -name=>'mainform'}),
 1621     $self->hidden_authen_fields;
 1622       print '<div id="mysets">';
 1623   #########  Table of mysets problems
 1624   $self->make_mysets_row('all_db_sets'=>\@all_db_sets);
 1625   print '<div id="mysets_problems" class="problemList">';
 1626     for ($jj=0; $jj<scalar(@myset_html); $jj++) {
 1627       $myset_files[$jj] =~ s|^$ce->{courseDirs}->{templates}/?||;
 1628       $self->make_myset_data_row($myset_files[$jj+$first_shown], $myset_html[$jj], $jj+1, $self->{past_marks}->[$jj]);
 1629     }
 1630   print '</div>';
 1631   #print CGI::end_table();
 1632   print '</div>';
 1633 
 1634   print '<div id="setmaker_library">';
 1635   #CGI::start_table({-id=>'setmaker_table', -border=>2});
 1636   $self->make_top_row('all_db_sets'=>\@all_db_sets,
 1637          'browse_which'=> $browse_which);
 1638 
 1639   print CGI::hidden(-name=>'browse_which', -value=>$browse_which,-override=>1),
 1640     CGI::hidden(-name=>'problem_seed', -value=>$problem_seed, -override=>1);
 1641   for ($j = 0 ; $j < scalar(@pg_files) ; $j++) {
 1642     print CGI::hidden(-name=>"all_past_list$j", -value=>$pg_files[$j],-override=>1);
 1643   }
 1644 
 1645   print CGI::hidden(-name=>'first_shown', -value=>$first_shown,-override=>1);
 1646 
 1647   print CGI::hidden(-name=>'last_shown', -value=>$last_shown, -override=>1);
 1648 
 1649   print '<div id="setmaker_library_problems" class="problemList">';
 1650   ########## Now print problems
 1651   for ($jj=0; $jj<scalar(@pg_html); $jj++) {
 1652     $pg_files[$jj] =~ s|^$ce->{courseDirs}->{templates}/?||;
 1653     $self->make_data_row($pg_files[$jj+$first_shown], $pg_html[$jj], $jj+1, $self->{past_marks}->[$jj]);
 1654     #$self->make_data_row($pg_files[$jj+$first_shown], $pg_html[$jj], $jj+1, $self->{past_marks}->[$jj+$first_shown]); #MEG
 1655   }
 1656   print '</div>';
 1657   ########## Finish things off
 1658   #print CGI::end_table();
 1659   my ($next_button, $prev_button) = ("", "");
 1660   if ($first_shown > 0) {
 1661     $prev_button = CGI::submit(-name=>"prev_page", -style=>"width:15ex",
 1662              -value=>"Previous page");
 1663   }
 1664   if ((1+$last_shown)<scalar(@pg_files)) {
 1665     $next_button = CGI::submit(-name=>"next_page", -style=>"width:15ex",
 1666              -value=>"Next page");
 1667   }
 1668   if (scalar(@pg_files)>0) {
 1669     print CGI::p(($first_shown+1)."-".($last_shown+1)." of ".scalar(@pg_files).
 1670       " shown.", $prev_button, " ", $next_button,
 1671       CGI::submit(-name=>"update", -style=>"width:15ex; font-weight:bold",
 1672           -value=>"Update Set"));
 1673   }
 1674   #close library_set
 1675   print '</div>';
 1676   #close form-editor
 1677   print '</div>';
 1678 
 1679   print '<div style="clear:both;"></div>';
 1680 
 1681 
 1682   #  if($first_shown>0 or (1+$last_shown)<scalar(@pg_files)) {
 1683 
 1684   #  }
 1685   print CGI::endform(), "\n";
 1686 
 1687   return "";
 1688 }
 1689 
 1690 =head1 AUTHOR
 1691 
 1692 Written by John Jones, jj (at) asu.edu.
 1693 Edited by David Gage
 1694 
 1695 =cut
 1696 
 1697 1;

aubreyja at gmail dot com
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