From 387386532c892b89f5c765a65ac2fe1482028d44 Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <m.bunkus@linet-services.de>
Date: Mon, 28 Aug 2017 09:35:33 +0200
Subject: [PATCH] =?utf8?q?DB-Upgrade:=20kein=20=C2=BBDROP=20CONSTRAINT=20?=
 =?utf8?q?=E2=80=A6=C2=AB=20nutzen?=
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Die Namen von Constraints wurden früher mit $1, $2
etc. durchnummeriert. Inzwischen werden sie hingegen aus Tabellen- und
Spaltennamen benannt.

Daher ist ein »DROP CONSTRAINT…« mit Namen nicht portabel. Statt
dessen müssen leider alle vorhandenen Constraints gedropt und neu
angelegt werden.
---
 sql/Pg-upgrade2/prices_delete_cascade.pl  | 30 +++++++++++++++++++++++
 sql/Pg-upgrade2/prices_delete_cascade.sql |  7 ------
 2 files changed, 30 insertions(+), 7 deletions(-)
 create mode 100644 sql/Pg-upgrade2/prices_delete_cascade.pl
 delete mode 100644 sql/Pg-upgrade2/prices_delete_cascade.sql

diff --git a/sql/Pg-upgrade2/prices_delete_cascade.pl b/sql/Pg-upgrade2/prices_delete_cascade.pl
new file mode 100644
index 000000000..4180348d3
--- /dev/null
+++ b/sql/Pg-upgrade2/prices_delete_cascade.pl
@@ -0,0 +1,30 @@
+# @tag: prices_delete_cascade
+# @description: Preisgruppenpreise Löschen wenn Artikel gelöscht wird
+# @depends: release_3_4_1
+
+# delete price entries if part is deleted
+
+package SL::DBUpgrade2::prices_delete_cascade;
+
+use utf8;
+use strict;
+
+use parent qw(SL::DBUpgrade2::Base);
+
+sub run {
+  my ($self) = @_;
+
+  $self->drop_constraints(table => "prices");
+
+  my $query = <<SQL;
+    ALTER TABLE prices
+    ADD CONSTRAINT prices_pricegroup_id_fkey FOREIGN KEY (pricegroup_id) REFERENCES pricegroup(id) ON DELETE CASCADE,
+    ADD CONSTRAINT prices_parts_id_fkey      FOREIGN KEY (parts_id)      REFERENCES parts(id)      ON DELETE CASCADE
+SQL
+
+  $self->db_query($query);
+
+  return 1;
+}
+
+1;
diff --git a/sql/Pg-upgrade2/prices_delete_cascade.sql b/sql/Pg-upgrade2/prices_delete_cascade.sql
deleted file mode 100644
index 74f19b13f..000000000
--- a/sql/Pg-upgrade2/prices_delete_cascade.sql
+++ /dev/null
@@ -1,7 +0,0 @@
--- @tag: prices_delete_cascade
--- @description: Preisgruppenpreise Löschen wenn Artikel gelöscht wird
--- @depends: release_3_4_1
-
--- delete price entries if part is deleted
-ALTER TABLE prices DROP constraint "$1", ADD FOREIGN KEY (pricegroup_id) REFERENCES pricegroup(id) ON DELETE CASCADE;
-ALTER TABLE prices DROP constraint "$2", ADD FOREIGN KEY (parts_id)      REFERENCES parts(id)      ON DELETE CASCADE;
-- 
2.20.1