--- loncom/interface/lonrequestcourse.pm	2016/08/04 21:59:23	1.95.2.1
+++ loncom/interface/lonrequestcourse.pm	2019/07/26 17:57:12	1.95.2.4
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Request a course
 #
-# $Id: lonrequestcourse.pm,v 1.95.2.1 2016/08/04 21:59:23 raeburn Exp $
+# $Id: lonrequestcourse.pm,v 1.95.2.4 2019/07/26 17:57:12 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -119,6 +119,10 @@ use Apache::loncoursequeueadmin;
 use Apache::lonuserutils;
 use LONCAPA qw(:DEFAULT :match);
 
+my $registered_flush;
+my $registered_instcats;
+my $modified_dom;
+
 sub handler {
     my ($r) = @_;
     &Apache::loncommon::content_type($r,'text/html');
@@ -127,6 +131,10 @@ sub handler {
         return OK;
     }
 
+    $registered_flush = 0;
+    $registered_instcats = 0;
+    $modified_dom = '';
+
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
         ['action','showdom','cnum','state','crstype','queue','tabs']);
     &Apache::lonhtmlcommon::clear_breadcrumbs();
@@ -2097,6 +2105,18 @@ sub print_personnel_menu {
         $output .= &Apache::lonhtmlcommon::row_headline().
                   '<h3>'.&Apache::loncommon::help_open_topic('Course_Request_Personnel').'&nbsp;'.$lt{$crstype}.' '.&mt('Include other personnel?').'</h3>';
     }
+    my $cansearch = 1;
+    my @alldoms = &Apache::lonnet::all_domains();
+    if (@alldoms == 1) {
+        my %domsrch = &Apache::lonnet::get_dom('configuration',
+                                               ['directorysrch'],$alldoms[0]);
+        if (ref($domsrch{'directorysrch'}) eq 'HASH') {
+            if ((!$domsrch{'directorysrch'}{'available'}) &&
+                ($domsrch{'directorysrch'}{'lcavailable'} eq '0')) {
+                $cansearch = 0;
+            }
+        }
+    }
     for (my $i=0; $i<$persontotal; $i++) { 
         my @linkargs = map { 'person_'.$i.'_'.$_ } (@items);
         my $linkargstr = join("','",@linkargs);
@@ -2121,9 +2141,14 @@ sub print_personnel_menu {
         }
         $sectionselector .= $newtitle.
             '<input type="text" name="person_'.$i.'_newsec" size="15" value="" />'."\n";
-        my $usersrchlinktxt = &mt('Search for user');
-        my $usersrchlink =  &Apache::loncommon::selectuser_link($formname,@linkargs,$dom,
-                            $usersrchlinktxt);
+        my $usersrchlink;
+        if ($cansearch) {
+            my $usersrchlinktxt = &mt('Search for user');
+            $usersrchlink = &Apache::loncommon::selectuser_link($formname,@linkargs,$dom,
+                                                                $usersrchlinktxt);
+        } else {
+            $usersrchlink = '&nbsp;';
+        }
         my $userchklinktxt = &mt('Check username');
         my $userchklink = &Apache::loncommon::selectuser_link($formname,@linkargs,$dom,
                             $userchklinktxt,'checkusername');
@@ -3829,6 +3854,24 @@ sub process_request {
                 }
                 $output .= '</p>';
                 $creationresult = 'created';
+                # Flush the course logs so reverse user roles immediately updated
+                unless ($registered_flush) {
+                    my $handlers = $r->get_handlers('PerlCleanupHandler');
+                    $r->set_handlers('PerlCleanupHandler' => [\&Apache::lonnet::flushcourselogs,@{$handlers}]);
+                    $registered_flush=1;
+                }
+                if ($instcode ne '') {
+                    &Apache::lonnet::devalidate_cache_new('instcats',$dom);
+                    # Update cache of self-cataloging courses on institution's server(s).
+                    if (&Apache::lonnet::shared_institution($dom)) {
+                        unless ($registered_instcats) {
+                            my $handlers = $r->get_handlers('PerlCleanupHandler');
+                            $r->set_handlers('PerlCleanupHandler' => [\&devalidate_remote_instcats,@{$handlers}]);
+                            $registered_instcats=1;
+                            $modified_dom = $dom;
+                        }
+                    }
+                }
             } else {
                 $output = '<span class="LC_error">';
                 if ($crstype eq 'community') {
@@ -3964,6 +4007,22 @@ sub process_request {
     }
 }
 
+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]);
+            }
+        }
+        $modified_dom = '';
+    }
+    return;
+}
+
 sub custom_formitems {
     my ($preprocess,$customhash) = @_;
     return unless ((ref($preprocess) eq 'HASH') && (ref($customhash) eq 'HASH'));  
@@ -4272,9 +4331,10 @@ sub pending_validation_form {
                         $buttontext = &mt('Create course');
                     }
                 }
+                my $hostname = &Apache::lonnet::hostname($lonhost);
                 my $protocol = $Apache::lonnet::protocol{$lonhost};
                 $protocol = 'http' if ($protocol ne 'https');
-                my $crscreator = $protocol.'://'.&Apache::lonnet::hostname($lonhost).'/cgi-bin/createpending.pl';
+                my $crscreator = $protocol.'://'.$hostname.'/cgi-bin/createpending.pl';
                 $output .= '<input type="hidden" name="crscreator" value="'.$crscreator.'" />'."\n".
                            '<input type="hidden" name="token" value="'.$token.'" />'."\n".
                            '<input type="submit" name="validate" value="'.$buttontext.'" />'."\n".
@@ -5015,6 +5075,9 @@ sub process_textbook_request {
             } else {
                 $details->{dateshift} = '';
             }
+        } elsif (($reqtype eq 'textbook') || ($reqtype eq 'template')) {
+            $details->{datemode} = 'delete';
+            $details->{dateshift} = '';
         }
         if ($details->{dateshift} ne '') {
             $details->{dateshift} =~ s/[^\d\.]+//g;