Merge pull request #2191 from MGatner/migration-rollback-reverse

Migration rollback reverse

system/Database/MigrationRunner.php

@@ -298,7 +298,7 @@ public function regress(int $targetBatch = 0, string $group = null)
 			}
 
 			// Get the migrations from each history
-			foreach ($this->getBatchHistory($batch) as $history)
+			foreach ($this->getBatchHistory($batch, 'desc') as $history)
 			{
 				// Create a UID from the history to match its migration
 				$uid = $this->getObjectUid($history);
@@ -789,13 +789,13 @@ public function getHistory(string $group = 'default'): array
 	 *
 	 * @return array
 	 */
-	public function getBatchHistory(int $batch): array
+	public function getBatchHistory(int $batch, $order = 'asc'): array
 	{
 		$this->ensureTable();
 
 		$query = $this->db->table($this->table)
 						  ->where('batch', $batch)
-						  ->orderBy('id', 'asc')
+						  ->orderBy('id', $order)
 						  ->get();
 
 		return $query ? $query->getResultObject() : [];

user_guide_src/source/dbmgmt/migration.rst

@@ -90,18 +90,18 @@ Foreign Keys
 ============
 
 When your tables include Foreign Keys, migrations can often cause problems as you attempt to drop tables and columns.
-To temporarily bypass the foreign key checks while running migrations, use the ``disableForeignKeyConstraints()`` and
-``enableForeignKeyConstraints()`` methods on the database connection.
+To temporarily bypass the foreign key checks while running migrations, use the ``disableForeignKeyChecks()`` and
+``enableForeignKeyChecks()`` methods on the database connection.
 
 ::
 
     public function up()
     {
-        $this->db->disableForeignKeyConstraints();
+        $this->db->disableForeignKeyChecks();
 
         // Migration rules would go here...
 
-        $this->db->enableForeignKeyConstraints();
+        $this->db->enableForeignKeyChecks();
     }
 
 Database Groups