From d69f4bcc8f66377356163a802b839bed87ad537e Mon Sep 17 00:00:00 2001
From: Aleisha Amohia <aleishaamohia@hotmail.com>
Date: Thu, 21 Dec 2017 00:57:21 +0000
Subject: [PATCH] Bug 19230: Preventing warn when deleting course

To test:
1) Ensure UseCourseReserves is enabled
2) Go to Course Reserves, create a course
3) When you are taken to the course page, you should notice the
'Argument "" isn't numeric in numeric gt' warn
4) Delete course
5) Notice warn, and that no confirm message popped up
6) Apply patch
7) Create a course again. Confirm the 'Argument "" isn't numeric in
numeric gt' warn did not show
8) Delete the course
9) Notice no warn and the confirm message pops up

Sponsored-by: Catalyst IT
---
 course_reserves/mod_course.pl                                | 12 ++++++------
 .../prog/en/modules/course_reserves/course-details.tt        |  3 +++
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/course_reserves/mod_course.pl b/course_reserves/mod_course.pl
index 844d157..16a959b 100755
--- a/course_reserves/mod_course.pl
+++ b/course_reserves/mod_course.pl
@@ -38,15 +38,15 @@ my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
 );
 
 my $action = $cgi->param('action') || '';
+my $course_id = $cgi->param('course_id');
 
 if ( $action eq 'del' ) {
-    DelCourse( $cgi->param('course_id') );
+    DelCourse( $course_id );
     print $cgi->redirect("/cgi-bin/koha/course_reserves/course-reserves.pl");
 } else {
     my %params;
 
-    $params{'course_id'} = $cgi->param('course_id')
-      if ( $cgi->param('course_id') );
+    $params{'course_id'}      = $course_id;
     $params{'department'}     = $cgi->param('department');
     $params{'course_number'}  = $cgi->param('course_number');
     $params{'section'}        = $cgi->param('section');
@@ -57,13 +57,13 @@ if ( $action eq 'del' ) {
     $params{'students_count'} = $cgi->param('students_count');
     $params{'enabled'}        = ( $cgi->param('enabled') eq 'on' ) ? 'yes' : 'no';
 
-    my $course_id = ModCourse(%params);
+    my $new_course_id = ModCourse(%params);
 
     my @instructors = $cgi->multi_param('instructors');
     ModCourseInstructors(
         mode        => 'replace',
         cardnumbers => \@instructors,
-        course_id   => $course_id
+        course_id   => $new_course_id
     );
-    print $cgi->redirect("/cgi-bin/koha/course_reserves/course-details.pl?course_id=$course_id");
+    print $cgi->redirect("/cgi-bin/koha/course_reserves/course-details.pl?course_id=$new_course_id");
 }
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/course_reserves/course-details.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/course_reserves/course-details.tt
index 1d433e8..ceb1edb 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/course_reserves/course-details.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/course_reserves/course-details.tt
@@ -212,6 +212,9 @@
 
             $("#delete_course").click(function(){
                 [% SET count = course_reserves.size %]
+                [% UNLESS count %]
+                    [% count = 0 %]
+                [% END %]
                 [% IF count == 1 %]
                     return confirmDelete(_("Are you sure you want to delete this course? There is [% count %] attached item.") );
                 [% ELSIF count > 1 %]
-- 
2.1.4