--- loncom/interface/loncreatecourse.pm	2017/01/22 19:46:46	1.158.2.3
+++ loncom/interface/loncreatecourse.pm	2020/05/22 19:35:08	1.174
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Create a course
 #
-# $Id: loncreatecourse.pm,v 1.158.2.3 2017/01/22 19:46:46 raeburn Exp $
+# $Id: loncreatecourse.pm,v 1.174 2020/05/22 19:35:08 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -82,7 +82,11 @@ use Apache::lonlocal;
 use Apache::lonuserutils;
 use Apache::lonclonecourse;
 use LONCAPA::batchcreatecourse;
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
+
+my $registered_flush;
+my $registered_instcats;
+my $modified_dom;
 
 # ===================================================== Phase one: fill-in form
 
@@ -91,6 +95,8 @@ sub print_course_creation_page {
     my $crstype = 'Community';
     if ($env{'form.phase'} eq 'courseone') {
         $crstype = 'Course';
+    } elsif ($env{'form.phase'} eq 'placementone') {
+        $crstype = 'Placement';
     }
     my $defdom=$env{'request.role.domain'};
     my %domdefaults = &Apache::lonnet::get_domain_defaults($defdom);
@@ -99,12 +105,13 @@ sub print_course_creation_page {
     foreach my $server (sort(keys(%host_servers))) {
         $course_home .= qq{<option value="$server"};
         if ($server eq $Apache::lonnet::perlvar{'lonHostID'}) {
-            $course_home .= " selected ";
+            $course_home .= ' selected="selected"';
         }
         $course_home .= qq{>$server $host_servers{$server}</option>};
     }
     $course_home .= "\n</select>\n";
-    my $domform = &Apache::loncommon::select_dom_form($defdom,'ccdomain');
+    my ($trusted,$untrusted) = &Apache::lonnet::trusted_domains('enroll',$defdom);
+    my $domform = &Apache::loncommon::select_dom_form($defdom,'ccdomain',undef,undef,undef,$trusted,$untrusted);
     my $cloneform=&Apache::loncommon::select_dom_form
 	($env{'request.role.domain'},'clonedomain').
 		     &Apache::loncommon::selectcourse_link
@@ -116,7 +123,9 @@ sub print_course_creation_page {
     my $endtime = time+(6*30*24*60*60); # 6 months from now, approx
     my $access_table = &Apache::lonuserutils::date_setting_table($starttime,
                                              $endtime,'create_defaultdates');
-    if ($crstype eq 'Course') {
+    my $openallfrom =
+        &Apache::lonhtmlcommon::date_setter('ccrs','openallfrom',$starttime);
+    if (($crstype eq 'Course') || ($crstype eq 'Placement')) {
         $enroll_table = &Apache::lonuserutils::date_setting_table($starttime,
                                               $endtime,'create_enrolldates');
         ($krbdef,$krbdefdom) =
@@ -185,6 +194,7 @@ function validate(formname) {
                     'shd'  => 'Shift date parameters by number of days',
                     'assp' => "Assessment Parameters",
                     'oaas' => "Open all assessments",
+                    'sta'  => "starting from:",
                     'mssg' => "Messaging",
                     'scpf' => "Set course policy feedback to Course Coordinator",
                     'scfc' => "Set resource content feedback to Course Coordinator",
@@ -215,6 +225,7 @@ function validate(formname) {
                     'cgrq' => 'Set a quota for the total disk space available for storage of course group portfolio files',
                     'opco' => 'Open Course',
                     'opcm' => 'Open Community',
+                    'oppt' => 'Open Placement Test',
 	       );
     $lt{'kaut'} = &mt('Key authority ([_1]id:domain[_2]) if other than course','<tt>','</tt>');
     $lt{'toin'} = &mt('to interface with institutional data, e.g., [_1]fs13glg231[_2] for [_3]Fall 2013 Geology 231[_4]','<tt>','</tt>','<i>','</i>');
@@ -246,9 +257,23 @@ function validate(formname) {
         $lt{'cc'}  = &mt('(will be assigned Coordinator role)');
         $lt{'cgrs'} = &mt('Community Group Settings');
         $lt{'cgrq'} = &mt('Set a quota for the total disk space available for storage of community group portfolio files');
+    } elsif ($crstype eq 'Placement') {
+        $lt{'cinf'} = &mt('Placement Test Information');
+        $lt{'ctit'} = &mt('Placement Test Title');
+        $lt{'chsr'} = &mt('Placement Test Home Server');
+        $lt{'cidn'} = &mt('Placement Test ID/Number');
+        $lt{'crco'} = &mt('Placement Test Content');
+        $lt{'cncr'} = &mt('Completely new placement test');
+        $lt{'cecr'} = &mt('Clone an existing placement test');
+        $lt{'sacr'} = &mt('Do NOT generate as standard placement test');
+        $lt{'stco'} = &mt('standard placement tests only');
+        $lt{'navi'} = &mt('Placement Test Contents');
+        $lt{'cid'}  = &mt('Placement Test ID');
     }
     my $js = <<END;
 <script type="text/javascript">
+// <![CDATA[
+
 var editbrowser = null;
 function openbrowser(formname,elementname) {
     var url = '/res/?';
@@ -267,6 +292,8 @@ function openbrowser(formname,elementnam
     editbrowser.focus();
 }
 $javascript_validations
+
+// ]]>
 </script>
 $coursebrowserjs
 END
@@ -274,6 +301,7 @@ END
     my %titles = &Apache::lonlocal::texthash(
                   courseone => 'Create a New Course',
                   groupone => 'Create a New Community',
+                  placementone=> 'Create a New Placement Test',
     );  
     my $start_page = 
         &Apache::loncommon::start_page($titles{$env{'form.phase'}},$js);
@@ -285,7 +313,7 @@ END
 					    'Create_Courses');
     $r->print($start_page.$crumbs);
 
-    $r->print('<form action="/adm/createcourse" method="post" name="ccrs" action=""><div class="LC_createcourse">'
+    $r->print('<form action="/adm/createcourse" method="post" name="ccrs"><div class="LC_createcourse">'
              .&Apache::lonhtmlcommon::start_pick_box()
 
              .&Apache::lonhtmlcommon::row_headline()
@@ -318,14 +346,16 @@ END
              .'<input type="text" size="30" name="crsid" />'
              .&Apache::lonhtmlcommon::row_closure()
     );
-    if ($crstype eq 'Course') {
+    if (($crstype eq 'Course') || ($crstype eq 'Placement')) {
         $r->print(&Apache::lonhtmlcommon::row_headline()
                  .'<h3>'.$lt{'iinf'}.'</h3>'
-                 .$lt{'stat'}.' '
-                 .&mt('Default credits can also be specified, if different from the domain defaults (official courses: [_1]; unofficial courses: [_2]; textbook courses: [_3]).',
-                      $domdefaults{'officialcredits'},$domdefaults{'unofficialcredits'},$domdefaults{'textbookcredits'})
-                 .&Apache::lonhtmlcommon::row_closure()
-
+                 .$lt{'stat'});
+        if ($crstype eq 'Course') {
+            $r->print(' '
+                     .&mt('Default credits can also be specified, if different from the domain defaults (official courses: [_1]; unofficial courses: [_2]; textbook courses: [_3]).',
+                          $domdefaults{'officialcredits'},$domdefaults{'unofficialcredits'},$domdefaults{'textbookcredits'}));
+        }
+        $r->print(&Apache::lonhtmlcommon::row_closure()
                  .&Apache::lonhtmlcommon::row_title($lt{'ccod'})
                  .'<input type="text" size="30" name="crscode" />'
                  .'<br />('.$lt{'toin'}.')'
@@ -341,7 +371,8 @@ END
                  .'<br />('.$lt{'cscs'}.')'
                  .&Apache::lonhtmlcommon::row_closure()
         );
-        if ($domdefaults{'officialcredits'} || $domdefaults{'unofficialcredits'} || $domdefaults{'textbookcredits'}) {
+        if (($crstype eq 'Course') && ($domdefaults{'officialcredits'} || 
+            $domdefaults{'unofficialcredits'} || $domdefaults{'textbookcredits'})) {
             $r->print(&Apache::lonhtmlcommon::row_title($lt{'ccre'})
                      .'<input type="text" size="3" name="defaultcredits" />'
                      .'<br />('.$lt{'cred'}.')'
@@ -352,8 +383,13 @@ END
                      .'<span class="LC_nobreak">'
                      .'<input type="radio" name="uniquecode" value="1" />'.&mt('Yes').('&nbsp;'x2)
                      .'<input type="radio" name="uniquecode" value="0" checked="checked" />'.&mt('No')
+                     .'</span>'
                      .&Apache::lonhtmlcommon::row_closure()
-            );
+                 );
+    }
+    my $blankchk;
+    if ($crstype eq 'Placement') {
+        $blankchk = ' checked="checked"';
     }
     # Table: New Course / Clone Course
     $r->print(&Apache::lonhtmlcommon::row_headline()
@@ -379,15 +415,14 @@ END
                  .&Apache::lonhtmlcommon::row_closure()
                  .&Apache::lonhtmlcommon::row_title($lt{'fres'})
                  .'<label>'
-                 .'<input type="radio" name="firstres" value="blank" />'.$lt{'blnk'}
-                 .'</label>'
-                 .'&nbsp;');
+                 .'<input type="radio" name="firstres" value="blank"'.$blankchk.' />'.$lt{'blnk'}
+                 .'</label>');
     if ($crstype eq 'Community') {
-        $r->print('<label>'
+        $r->print('&nbsp;<label>'
                  .'<input type="radio" name="firstres" value="nav" checked="checked" />'.$lt{'navi'}
                  .'</label>');
-    } else {
-        $r->print('<label>'
+    } elsif ($crstype eq 'Course') {
+        $r->print('&nbsp;<label>'
                  .'<input type="radio" name="firstres" value="syl" checked="checked" />'.$lt{'sllb'}
                  .'</label>'
                  .'&nbsp;'
@@ -399,7 +434,7 @@ END
                  .&Apache::lonhtmlcommon::row_closure(1)
                  .&Apache::lonhtmlcommon::end_pick_box()
 
-                 .'<td>&nbsp;</td>'
+                 .'</td><td>&nbsp;</td>'
 
                  # Clone Course:
                  .'<td>'
@@ -449,7 +484,10 @@ END
                  .&Apache::lonhtmlcommon::row_closure()
 
                  .&Apache::lonhtmlcommon::row_title($lt{'oaas'})
-                 .'<input type="checkbox" name="openall" />'
+                 .'<span class="LC_nobreak">'
+                 .'<label><input type="radio" name="openall" value="0" checked="checked" />'.$lt{'no'}.'</label>'.('&nbsp;'x2)
+                 .'<label><input type="radio" name="openall" value="1" />'.$lt{'yes'}.'</label>'.',&nbsp;'
+                 .$lt{'sta'}.'&nbsp;'.$openallfrom.'</span>'
                  .&Apache::lonhtmlcommon::row_closure()
 
                  .&Apache::lonhtmlcommon::row_headline()
@@ -500,7 +538,7 @@ END
                  .'<input type="text" name="reshome" size="30" value="/res/'.$defdom.'/" />'
                  .&Apache::lonhtmlcommon::row_closure()
     );
-    if ($crstype eq 'Course') {
+    unless ($crstype eq 'Community') {
         $r->print(&Apache::lonhtmlcommon::row_headline()
                  .'<h3>'.$lt{'aens'}.'</h3>'
                  .&Apache::lonhtmlcommon::row_closure()
@@ -563,7 +601,8 @@ END
 <p>
 <input type="hidden" name="prevphase" value="courseone" />
 <input type="hidden" name="phase" value="coursetwo" />
-<input type="button" onclick="verify_message(this.form)" value="'.$lt{'opco'}.'" />'
+<input type="button" onclick="verify_message(this.form)" value="'.$lt{'opco'}.'" />
+</p>'
         );
     } elsif ($crstype eq 'Community') {
         $r->print('
@@ -573,6 +612,14 @@ END
 <input type="submit" value="'.$lt{'opcm'}.'" />
 </p>'
         );
+    } elsif ($crstype eq 'Placement') {
+        $r->print('
+<p>
+<input type="hidden" name="prevphase" value="placementone" />
+<input type="hidden" name="phase" value="placementtwo" />
+<input type="button" onclick="verify_message(this.form)" value="'.$lt{'oppt'}.'" />
+</p>'
+        );
     }
     $r->print('</form>'.
               $end_page);
@@ -585,7 +632,7 @@ sub create_course {
     my $ccuname =&LONCAPA::clean_username($env{'form.ccuname'});
     my $ccdomain=&LONCAPA::clean_domain($env{'form.ccdomain'});
     my $crstype = 'Community';
-    my ($enrollstart,$enrollend,$startaccess,$endaccess);
+    my ($enrollstart,$enrollend,$startaccess,$endaccess,$openallfrom);
     my %domdefaults = 
         &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
 
@@ -593,9 +640,12 @@ sub create_course {
         $crstype='Course';
         $enrollstart=&Apache::lonhtmlcommon::get_date_from_form('startenroll');
         $enrollend=&Apache::lonhtmlcommon::get_date_from_form('endenroll');
+    } elsif ($env{'form.phase'} eq 'placementtwo') {
+        $crstype='Placement';
     }
     $startaccess = &Apache::lonhtmlcommon::get_date_from_form('startaccess');
     $endaccess   = &Apache::lonhtmlcommon::get_date_from_form('endaccess');
+    $openallfrom = &Apache::lonhtmlcommon::get_date_from_form('openallfrom');
 
     my $autharg;
     my $authtype;
@@ -661,6 +711,7 @@ sub create_course {
                disresdis => $env{'form.disresdis'},
                disablechat => $env{'form.disablechat'},
                openall => $env{'form.openall'},
+               openallfrom => $openallfrom,
                firstres => $env{'form.firstres'}
                };
 
@@ -731,8 +782,10 @@ sub create_course {
                       '<p>'.&mt('Course identifier to share with students: [_1]',$code).'</p>'
                      );
         }
-        # Flush the course logs so reverse user roles immediately updated
-	$r->register_cleanup(\&Apache::lonnet::flushcourselogs);
+        if ($env{'form.crscode'} ne '') {
+            &Apache::lonnet::devalidate_cache_new('instcats',$crsudom);
+        }
+        &register_cleanups($r,$crsudom,$env{'form.crscode'});
 	$r->print('<p>'.&mt('Roles will be active at next login').'.</p>');
     }
     $r->print('<p><a href="/adm/createcourse?phase='.lc($crstype).'one">'.
@@ -743,7 +796,7 @@ sub create_course {
 sub print_intro_page {
     my ($r,$show_all_choices,$cancreate,$permission) = @_;
     my $start_page =
-        &Apache::loncommon::start_page('Create a New Course or Community');
+        &Apache::loncommon::start_page('Create a New Course, Community or Placement Test');
     my $crumbs = &Apache::lonhtmlcommon::breadcrumbs('Creation Options','Create_Course',undef,'Create_Courses');
     my $end_page =
         &Apache::loncommon::end_page();
@@ -775,12 +828,20 @@ sub print_intro_page {
                linktitle => 'Create a new collaborative community by completing an online form.'
           },
           {
-               linktext => 'Create courses/communities by uploading an attributes file',
+               linktext => 'Create a single placement test',
+               url => '/adm/createcourse?phase=placementone',
+               permission => $permission->{'create'} && $cancreate->{'Placement'},
+               #help => '',
+               icon => 'crsnew.png',
+               linktitle => 'Create a new placement test by completing an online form.'
+          },
+          {
+               linktext => 'Create courses/communities/placement tests by uploading an attributes file',
                url => '/adm/createcourse?phase=batchone',
                permission => $permission->{'create'},
                help => 'Batch_Creation',
                icon => 'uplcrs.png',
-               linktitle => 'Upload an attributes file containing specifications for one or more courses or communities in XML format.'
+               linktitle => 'Upload an attributes file containing specifications for one or more courses, communities or placement tests in XML format.'
           },
        ]
        },
@@ -792,7 +853,7 @@ sub print_intro_page {
                permission => $show_all_choices,
                #help => '',
                icon => 'rcrs.png',
-               linktitle => 'Display course and community creation requests submitted by authorized users, held pending approval by a Domain Coordinator.'
+               linktitle => 'Display course, community creation and placement test requests submitted by authorized users, held pending approval by a Domain Coordinator.'
            },
            {
                linktext => 'View pending official course requests',
@@ -813,7 +874,7 @@ sub print_intro_page {
                permission => $show_all_choices,
                #help => '',
                icon => 'document-properties.png',
-               linktitle => 'Display information about when, how and by whom courses and communities were created in this domain.'
+               linktitle => 'Display information about when, how and by whom courses, communities and placement tests were created in this domain.'
            },
        ]
        },
@@ -830,60 +891,85 @@ sub print_intro_page {
 sub upload_batchfile {
     my $r = shift;
     my $start_page =
-        &Apache::loncommon::start_page('Create a New Course or Community');
-    my $crumbs = &Apache::lonhtmlcommon::breadcrumbs('Upload Course/Community Attributes File','Create_Course',undef,'Create_Courses');
+        &Apache::loncommon::start_page('Create a New Course, Community, or Placement Test');
+    my $crumbs = &Apache::lonhtmlcommon::breadcrumbs('Upload Course/Community/Placement Test Attributes File','Create_Course',undef,'Create_Courses');
     my $end_page =
         &Apache::loncommon::end_page();
     $r->print($start_page.$crumbs);
-    $r->print('<h3>'.&mt('Upload a courses or communities attributes file').'</h3>');
+    $r->print('<h3>'.&mt('Upload a courses, communities or placement tests attributes file').'</h3>');
     $r->print('<form name="batchcreate" method="post" '.
                 'enctype="multipart/form-data" action="/adm/createcourse">'.
               '<input type="file" name="coursecreatorxml" />'.
               '<input type="hidden" name="phase" value="batchtwo" /><br /><br />'.
               '<input type="submit" name="batchsubmit" '.
-              'value="'.&mt('Create Courses/Communities').'" /></form>');
+              'value="'.&mt('Create Courses/Communities/Placement Tests').'" /></form>');
     $r->print($end_page);
     return;
 }
 
 sub process_batchfile {
     my $r = shift;
-    my $start_page =
-        &Apache::loncommon::start_page('Create a New Course or Community');
-    my $crumbs = &Apache::lonhtmlcommon::breadcrumbs('Creation Outcome','Create_Course',undef,'Create_Courses');
-    my $end_page =
-        &Apache::loncommon::end_page();
     my $defdom=$env{'request.role.domain'};
-    my $batchfilepath=&Apache::lonnet::userfileupload('coursecreatorxml',undef,
-                                                      'batchupload',undef,undef,
-                                                       undef,undef,$defdom);
-    my ($batchdir,$filename) = ($batchfilepath =~ m-^(.+)/pending/([^/]+)$-);
-    my ($result,$logmsg);
-    if (-e "$batchfilepath") {
-        open(FILE,"<$batchfilepath");
-        my @buffer = <FILE>;
-        close(FILE);
-        if ((defined($filename)) && (defined($batchdir))) {
-            my @requests = ($filename);
-            my %courseids = ();
-            ($result,$logmsg) = &LONCAPA::batchcreatecourse::create_courses(
-                                        \@requests,\%courseids,'web',$defdom,
-                                        $env{'user.name'},$env{'user.domain'});
-            if ($result) {
-                if (!-e "$batchdir/processed") {
-                    mkdir("$batchdir/processed", 0755);
-                    open(FILE,">$batchdir/processed/$filename");
-                    print FILE @buffer;
+    my $uname = $env{'user.name'};
+    my $udom = $env{'user.domain'};
+    my $dir = &LONCAPA::tempdir().'addcourse';
+    my ($result,$logmsg,$keysmsg,$codesref,$instcodesref);
+    if (($defdom =~ /^$match_domain$/) && ($uname =~ /^$match_username$/) && ($udom =~/^$match_domain$/)) {
+        my $batchfilepath=&Apache::lonnet::userfileupload('coursecreatorxml',undef,
+                                                          'batchupload',undef,undef,
+                                                          undef,undef,$defdom);
+        if ($batchfilepath =~ m{^(\Q$dir/$defdom/web/$uname\E_\Q$udom\E)/pending/([^/]+)$}) {
+            my ($batchdir,$filename) = ($1,$2);
+            if (-e "$batchfilepath") {
+                if (open(FILE,"<",$batchfilepath)) {
+                    my @buffer = <FILE>;
                     close(FILE);
-                    if (-e "$batchdir/processed/$filename") {
-                        unlink("$batchdir/pending/$filename");
+                    if ((defined($filename)) && (defined($batchdir))) {
+                        my @requests = ($filename);
+                        my %courseids = ();
+                        ($result,$logmsg,$keysmsg,$codesref,$instcodesref) =
+                            &LONCAPA::batchcreatecourse::create_courses(
+                                       \@requests,\%courseids,'web',$defdom,
+                                       $uname,$udom);
+                        if (keys(%courseids) > 0) {
+                            if (!-e "$batchdir/processed") {
+                                mkdir("$batchdir/processed", 0755);
+                            }
+                            if (-d "$batchdir/processed") {
+                                if (open(FILE,">","$batchdir/processed/$filename")) {
+                                    print FILE @buffer;
+                                    close(FILE);
+                                }
+                            }
+                            if (-e "$batchdir/processed/$filename") {
+                                unlink("$batchdir/pending/$filename");
+                            }
+                            my $updatecats;
+                            if ((ref($instcodesref) eq 'HASH') && (keys(%{$instcodesref}) > 0)) {
+                                &Apache::lonnet::devalidate_cache_new('instcats',$defdom);
+                                $updatecats = 1;
+                            } 
+                            &register_cleanups($r,$defdom,$updatecats); 
+                        }
                     }
+                } else {
+                    $result = '<p class="LC_error">'.&mt('Could not open attributes file.').'<br />'.&mt('No courses created.').'</p>';
                 }
+            } else {
+                $result = '<p class="LC_error">'.&mt('No uploaded attributes file found.').'<br />'.&mt('No courses created.').'</p>';
             }
+        } else {
+            $result = '<p class="LC_error">'.&mt('Invalid path to attributes file.').'<br />'.&mt('No courses created.').'</p>';
         }
+    } else {
+        $result = '<p class="LC_error">'.&mt("Your username, domain, and/or your current role's domain are missing or contain invalid characters.").
+                  '<br />'.&mt('No courses created.').'</p>';
     }
-    $r->print($start_page.$crumbs.$logmsg.$result.'<br /><a href="/adm/createcourse">'.
-              &mt('Creation options menu').'</a>'.$end_page);
+    $r->print(&Apache::loncommon::start_page('Create a New Course, Community or Placement Test').
+              &Apache::lonhtmlcommon::breadcrumbs('Creation Outcome','Create_Course',undef,'Create_Courses').
+              $logmsg.$result.'<br /><a href="/adm/createcourse">'.
+              &mt('Creation options menu').'</a>'.
+              &Apache::loncommon::end_page());
  
 }
 
@@ -968,6 +1054,8 @@ sub print_creation_logs {
         $crstype = '.';
     } elsif ($curr{'type'} eq 'community') {
         $crstype = 'Community';
+    } elsif ($curr{'type'} eq 'placement') {
+        $crstype = 'Placement';
     }
 
     my ($instcodefilter,$regexpok);
@@ -1058,6 +1146,8 @@ sub print_creation_logs {
         my $showtype;
         if ($courses{$cid}{type} eq 'Community') {
             $showtype = &mt('community');
+        } elsif ($courses{$cid}{type} eq 'Placement') {
+            $showtype = &mt('placement test');
         } else {
             my $instcode = $courses{$cid}{inst_code};
             if ($instcode ne '')  {
@@ -1272,6 +1362,44 @@ sub get_permission {
     return ($allowed,\%permission);
 }
 
+sub register_cleanups {
+    my ($r,$cdom,$updatecats) = @_;
+    # Flush the course logs so reverse user roles immediately updated
+    unless ($registered_flush) {
+        my $handlers = $r->get_handlers('PerlCleanupHandler');
+        $r->set_handlers('PerlCleanupHandler' => [\&Apache::lonnet::flushcourselogs,@{$handlers}]);
+        $registered_flush=1;
+    }
+    # Update cache of self-cataloging courses on institution's server(s).
+    if ($updatecats) {
+        if (&Apache::lonnet::shared_institution($cdom)) {
+            unless ($registered_instcats) {
+                my $handlers = $r->get_handlers('PerlCleanupHandler');
+                $r->set_handlers('PerlCleanupHandler' => [\&devalidate_remote_instcats,@{$handlers}]);
+                $registered_instcats=1;
+                $modified_dom = $cdom;
+            }
+        }
+    }
+    return;
+}
+
+sub devalidate_remote_instcats {
+    if ($modified_dom ne '') {
+        my %servers = &Apache::lonnet::internet_dom_servers($modified_dom);
+        my %thismachine;
+        map { $thismachine{$_} = 1; } &Apache::lonnet::current_machine_ids();
+        if (keys(%servers)) {
+            foreach my $server (keys(%servers)) {
+                next if ($thismachine{$server});
+                &Apache::lonnet::remote_devalidate_cache($server,['instcats:'.$modified_dom]);
+            }
+        }
+        $modified_dom = '';
+    }
+    return;
+}
+
 # ===================================================================== Handler
 sub handler {
     my $r = shift;
@@ -1282,19 +1410,24 @@ sub handler {
        return OK;
     }
 
+    $registered_flush = 0;
+    $registered_instcats = 0;
+    $modified_dom = '';
+
     my ($allowed,$permission) = &get_permission($env{'request.role.domain'});
     if ($allowed) {
         my $show_all_choices = 0;
         my $primary_rev = &Apache::lonnet::get_server_loncaparev($env{'request.role.domain'});
         my %cancreate = (
                            Community => 0,
+                           Placement => 0,
                         );
         if (($primary_rev ne 'refused') && ($primary_rev ne 'error') &&
             ($primary_rev ne 'unknown_cmd') && ($primary_rev ne 'no_such_host')) {
             $show_all_choices = 1;
             my ($primary_major,$primary_minor) = split(/\./,$primary_rev);
             foreach my $key (keys(%cancreate)) {
-                my ($needsmajor,$needsminor) =
+                my ($needsmajor,$needsminor) = 
                     split(/\./,$Apache::lonnet::needsrelease{'course:crstype:'.$key});
                 unless (($needsmajor > $primary_major) ||
                         (($needsmajor == $primary_major) && ($needsminor > $primary_minor))) {
@@ -1315,8 +1448,10 @@ sub handler {
             faq=>79,bug=>'Dom Coord Interface',});
        if (($permission->{'create'}) &&
            (($env{'form.phase'} eq 'coursetwo') ||
-            (($env{'form.phase'} eq 'grouptwo') &&
-            ($cancreate{'Community'})))) {
+            (($env{'form.phase'} eq 'grouptwo') && 
+            ($cancreate{'Community'})) ||
+           (($env{'form.phase'} eq 'placementtwo') &&
+            ($cancreate{'Placement'})))) { 
            &Apache::lonhtmlcommon::add_breadcrumb
                  ({href=>"/adm/createcourse?phase=$env{'form.prevphase'}",
                    text=>&mt('[_1] Creation Settings',),
@@ -1327,9 +1462,11 @@ sub handler {
                    faq=>9,bug=>'Dom Coord Interface',});
            &create_course($r);
        } elsif (($permission->{'create'}) &&
-                (($env{'form.phase'} eq 'courseone') ||
-                 (($env{'form.phase'} eq 'groupone') &&
-                 ($cancreate{'Community'})))) {
+                (($env{'form.phase'} eq 'courseone') || 
+                 (($env{'form.phase'} eq 'groupone') && 
+                 ($cancreate{'Community'})) ||
+                 (($env{'form.phase'} eq 'placementone') &&
+                  ($cancreate{'Placement'})))) {
            &Apache::lonhtmlcommon::add_breadcrumb
                  ({href=>"/adm/createcourse?phase=$env{'form.phase'}",
                    text=>&mt('[_1] Creation Settings',),
@@ -1370,7 +1507,7 @@ sub handler {
                          $context,$env{'request.role.domain'}).'</div>'.
                      &Apache::loncommon::end_page());
        } elsif (($permission->{'create'}) &&
-                ($env{'form.phase'} eq 'requestchange') && ($show_all_choices)) { 
+                ($env{'form.phase'} eq 'requestchange') && ($show_all_choices)) {
            if ($env{'form.queue'} eq 'pending') {
                &Apache::lonhtmlcommon::add_breadcrumb
                    ({href=>"/adm/createcourse?phase=pendingdisplay",
@@ -1409,7 +1546,7 @@ sub handler {
                          $context,$env{'request.role.domain'}).'</div>'.
                      &Apache::loncommon::end_page());
        } elsif (($permission->{'create'}) &&
-                ($env{'form.phase'} eq 'requestvalidation') && ($show_all_choices)) { 
+                ($env{'form.phase'} eq 'requestvalidation') && ($show_all_choices)) {
            my $js = &courserequestbrowser_javascript();
            &Apache::lonhtmlcommon::add_breadcrumb
                  ({href=>"/adm/createcourse?phase=pendingdisplay",