From b9727d72d7f1bd19a3a7d0a1192783ee8f58f1fb Mon Sep 17 00:00:00 2001
From: objecttothis <objecttothis@gmail.com>
Date: Wed, 19 Aug 2020 12:17:18 +0400
Subject: [PATCH] Allow ON DELETE CASCADE for receiving_id foreign key in links
 table

---
 ...819000000_modify_attr_links_constraint.php | 24 +++++++++++++++++++
 .../3.3.2_modify_attr_links_constraint.sql    |  8 +++++++
 2 files changed, 32 insertions(+)
 create mode 100644 application/migrations/20200819000000_modify_attr_links_constraint.php
 create mode 100644 application/migrations/sqlscripts/3.3.2_modify_attr_links_constraint.sql

diff --git a/application/migrations/20200819000000_modify_attr_links_constraint.php b/application/migrations/20200819000000_modify_attr_links_constraint.php
new file mode 100644
index 000000000..35d2844fa
--- /dev/null
+++ b/application/migrations/20200819000000_modify_attr_links_constraint.php
@@ -0,0 +1,24 @@
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+class Migration_modify_attr_links_constraint extends CI_Migration
+{
+	public function __construct()
+	{
+		parent::__construct();
+	}
+
+	public function up()
+	{
+		error_log('Migrating modify_attr_links_constraint');
+
+
+		execute_script(APPPATH . 'migrations/sqlscripts/3.3.2_modify_attr_links_constraint.sql');
+
+		error_log('Migrating modify_attr_links_constraint');
+	}
+
+	public function down()
+	{
+	}
+}
+?>
\ No newline at end of file
diff --git a/application/migrations/sqlscripts/3.3.2_modify_attr_links_constraint.sql b/application/migrations/sqlscripts/3.3.2_modify_attr_links_constraint.sql
new file mode 100644
index 000000000..b36b63f0c
--- /dev/null
+++ b/application/migrations/sqlscripts/3.3.2_modify_attr_links_constraint.sql
@@ -0,0 +1,8 @@
+ALTER TABLE `ospos_attribute_links`
+DROP FOREIGN KEY `ospos_attribute_links_ibfk_4`;
+
+ALTER TABLE `ospos_attribute_links`
+ADD CONSTRAINT `ospos_attribute_links_ibfk_4`
+FOREIGN KEY (`receiving_id`) REFERENCES `ospos_receivings`(`receiving_id`)
+ON DELETE CASCADE
+ON UPDATE RESTRICT;
\ No newline at end of file