Changes for v22.0.0.OS

migrations/v20180325_210101_delete_leave_group_employee.php

@@ -0,0 +1,31 @@
+<?php
+namespace Classes\Migration;
+
+class v20180325_210101_delete_leave_group_employee extends AbstractMigration{
+
+    public function up(){
+
+        $sql = <<<'SQL'
+        alter table LeaveGroupEmployees drop FOREIGN KEY `Fk_LeaveGroupEmployees_Employee`;
+SQL;
+        $this->executeQuery($sql);
+
+        $sql = <<<'SQL'
+        alter table LeaveGroupEmployees drop index `LeaveGroupEmployees_employee`;
+SQL;
+        $this->executeQuery($sql);
+
+        $sql = <<<'SQL'
+        alter table LeaveGroupEmployees add CONSTRAINT `Fk_LeaveGroupEmployees_Employee` FOREIGN KEY (`employee`) REFERENCES `Employees` (`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+SQL;
+        return $this->executeQuery($sql);
+    }
+
+    public function down(){
+        $sql = <<<'SQL'
+        alter table LeaveGroupEmployees add UNIQUE KEY `LeaveGroupEmployees_employee` (`employee`);
+SQL;
+        return $this->executeQuery($sql);
+    }
+
+}