From 05fcba7761ea2989741a1a502977067cdfe22ef8 Mon Sep 17 00:00:00 2001
From: Jonathan Druart <jonathan.druart@biblibre.com>
Date: Mon, 29 Sep 2014 16:16:23 +0200
Subject: [PATCH 1/2] Bug 13007: Add a foreign key for suggestions.budgetid

The DB field suggestions.budgetid should be linked to
aqbudgets.budget_id.

If the fund is removed, this column should be set to NULL.

Test plan:
1/ Using your SQL CLI (or equivalent), create or update 1+ suggestions and
set "0" in the budgetid field (or a nonexistent budget id).
2/ Execute the updatedabase script.
3/ Verify that your suggestion is unlinked to the nonexistent fund.
4/ Verify the constraint has correctly been added (show create table
suggestions).
5/ Check that this change does not affect the behavior on adding a
suggestion (linked to a fund or not).

Signed-off-by: Paola Rossi <paola.rossi@cineca.it>
---
 installer/data/mysql/kohastructure.sql |    3 ++-
 installer/data/mysql/updatedatabase.pl |   20 ++++++++++++++++++++
 t/db_dependent/Suggestions.t           |    4 +++-
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/installer/data/mysql/kohastructure.sql b/installer/data/mysql/kohastructure.sql
index 4ffbbf2..6c507ac 100644
--- a/installer/data/mysql/kohastructure.sql
+++ b/installer/data/mysql/kohastructure.sql
@@ -2212,7 +2212,8 @@ CREATE TABLE `suggestions` ( -- purchase suggestions
    total DECIMAL(28,6) default NULL, -- suggested total cost (price*quantity updated for currency)
   PRIMARY KEY  (`suggestionid`),
   KEY `suggestedby` (`suggestedby`),
-  KEY `managedby` (`managedby`)
+  KEY `managedby` (`managedby`),
+  CONSTRAINT `suggestions_budget_id_fk` FOREIGN KEY (`budgetid`) REFERENCES `aqbudgets` (`budget_id`) ON DELETE SET NULL ON UPDATE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 --
diff --git a/installer/data/mysql/updatedatabase.pl b/installer/data/mysql/updatedatabase.pl
index e36c20e..221f0ff 100755
--- a/installer/data/mysql/updatedatabase.pl
+++ b/installer/data/mysql/updatedatabase.pl
@@ -9525,6 +9525,26 @@ if ( CheckVersion($DBversion) ) {
     SetVersion($DBversion);
 }
 
+$DBversion = "3.17.00.XXX";
+if ( CheckVersion($DBversion) ) {
+    $dbh->do(q|
+        UPDATE suggestions s SET s.budgetid = NULL
+        WHERE NOT EXISTS (
+            SELECT NULL
+            FROM aqbudgets b
+            WHERE b.budget_id = s.budgetid
+        );
+    |);
+
+    $dbh->do(q|
+        ALTER TABLE suggestions
+        ADD CONSTRAINT suggestions_budget_id_fk FOREIGN KEY (budgetid) REFERENCES aqbudgets(budget_id) ON DELETE SET NULL ON UPDATE CASCADE
+    |);
+
+    print "Upgrade to $DBversion done (Bug 13007 - Add new foreign key suggestions.budgetid)\n";
+    SetVersion($DBversion);
+}
+
 =head1 FUNCTIONS
 
 =head2 TableExists($table)
diff --git a/t/db_dependent/Suggestions.t b/t/db_dependent/Suggestions.t
index 1584301..47e5ad4 100644
--- a/t/db_dependent/Suggestions.t
+++ b/t/db_dependent/Suggestions.t
@@ -23,7 +23,7 @@ use C4::Letters;
 
 use Koha::DateUtils qw( dt_from_string );
 
-use Test::More tests => 97;
+use Test::More tests => 98;
 use Test::Warn;
 
 BEGIN {
@@ -85,6 +85,8 @@ is( $suggestion->{biblionumber}, $my_suggestion->{biblionumber}, 'NewSuggestion
 is( $suggestion->{STATUS}, 'ASKED', 'NewSuggestion stores a suggestion with the status ASKED by default' );
 is( $suggestion->{managedby}, undef, 'NewSuggestion stores empty string as undef for non existent foreign key (integer)' );
 is( $suggestion->{manageddate}, undef, 'NewSuggestion stores empty string as undef for date' );
+is( $suggestion->{budgetid}, undef, 'NewSuggestion should set budgetid to NULL if not given' );
+
 is( CountSuggestion('ASKED'), 1, 'CountSuggestion returns the correct number of suggestions' );
 
 
-- 
1.7.10.4