CC-2867: separating Doctrine upgrade into 3 files

- done

install_minimal/DoctrineMigrations/Version20110925171051.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration,
+    Doctrine\DBAL\Schema\Schema;
+
+class Version20110925171051 extends AbstractMigration
+{
+    public function up(Schema $schema)
+    {
+        // move soundcloud_id from cc_show_instances to cc_files
+        $this->_addSql("update cc_files as cf set soundcloud_id = csi.soundcloud_id
+                                from cc_show_instances as csi
+                                where csi.file_id = cf.id and file_id is not NULL");
+        
+        // remove soundcloud_id from cc_show_instance table
+        $cc_show_instances = $schema->getTable('cc_show_instances');
+        $cc_show_instances->dropColumn('soundcloud_id');
+    }
+
+    public function down(Schema $schema)
+    {
+
+    }
+}