From be7d58ee2d8ad93a5b01c1f0db0e5248fe6d6c8b Mon Sep 17 00:00:00 2001
From: Yohann Dufour <dufour.yohann@gmail.com>
Date: Tue, 1 Jul 2014 09:59:36 +0200
Subject: [PATCH] Bug 12508: adding an error message if a contract cannot be
 removed
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If a contract cannot be removed, no errors is displayed. Now, it displays an dialog messag error and the list of contracts.

Test plan:
1) Log on with a superlibrarian permission
2) Go on the page acqui/supplier.pl (Acquisitions > Button "New vendor")
3) Record a vendor with a nonzero "name"
4) Go on the page admin/aqcontract.pl (click on the "Contracts" item in the menu)
5) Click on the button "New" > "Contract" and record a new one
6) Click on "New" > "Basket" and record a basket by selectioning the created contract
7) Click on the contract name, then click on the "Contracts" item in the left menu
8) Try to delete this contract, an error is displayed : "Contract has not been deleted. Maybe a basket linked to this contract exists."
9) Delete the basket linked to the contract
10) Delete the contract, no errors is displayed

Signed-off-by: Juhani Seppälä <jseppal@student.uef.fi>
---
 admin/aqcontract.pl                                   | 19 +++++++++++--------
 .../intranet-tmpl/prog/en/modules/admin/aqcontract.tt |  5 +++++
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/admin/aqcontract.pl b/admin/aqcontract.pl
index ab513e7..43a6b0a 100755
--- a/admin/aqcontract.pl
+++ b/admin/aqcontract.pl
@@ -33,7 +33,7 @@ use C4::Contract;
 my $input          = new CGI;
 my $contractnumber = $input->param('contractnumber');
 my $booksellerid   = $input->param('booksellerid');
-my $op             = $input->param('op') || '';
+my $op             = $input->param('op') || 'list';
 
 my $bookseller = GetBookSellerFromId($booksellerid);
 
@@ -132,17 +132,20 @@ elsif ( $op eq 'delete_confirm' ) {
 }
 #DELETE_CONFIRMED: called by delete_confirm, used to effectively confirm deletion of data in DB
 elsif ( $op eq 'delete_confirmed' ) {
-    $template->param( delete_confirmed => 1 );
+    my $deleted = DelContract( { contractnumber => $contractnumber } );
 
-    DelContract( { contractnumber => $contractnumber } );
-
-    print $input->redirect("/cgi-bin/koha/acqui/supplier.pl?booksellerid=$booksellerid");
-    exit;
+    if ( $deleted ) {
+        print $input->redirect("/cgi-bin/koha/acqui/supplier.pl?booksellerid=$booksellerid");
+        exit;
+    } else {
+        $template->param( error => 'not_deleted' );
+        $op = 'list';
+    }
 
-    # END $OP eq DELETE_CONFIRMED
+    # END $OP eq LIST
 }
 # DEFAULT: Builds a list of contracts and displays them
-else {
+if ( $op eq 'list' ) {
     $template->param(else => 1);
 
     # get contracts
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/aqcontract.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/aqcontract.tt
index 34040bd..b4a6e0c 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/aqcontract.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/aqcontract.tt
@@ -90,6 +90,11 @@ function Check(ff) {
     <div class="yui-b">
 
 [% INCLUDE 'acquisitions-toolbar.inc' %]
+
+[% IF error == 'not_deleted' %]
+    <div class="dialog alert">Contract has not been deleted. Maybe a basket linked to this contract exists.</div>
+[% END %]
+
                 [% IF ( add_form ) %]
                     <form name="Aform" action="[% script_name %]" method="post">
                         <input type="hidden" name="op" value="add_validate" />
-- 
1.9.1