1 files changed, 57 insertions, 0 deletions
diff --git a/db/migrate/20161117114805_remove_undeleted_groups.rb b/db/migrate/20161117114805_remove_undeleted_groups.rb
new file mode 100644
index 00000000000..696914f8e4d
--- /dev/null
+++ b/db/migrate/20161117114805_remove_undeleted_groups.rb
@@ -0,0 +1,57 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class RemoveUndeletedGroups < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def up
+    execute <<-EOF.strip_heredoc
+    DELETE FROM projects
+    WHERE namespace_id IN (
+      SELECT id FROM (
+        SELECT id
+        FROM namespaces
+        WHERE deleted_at IS NOT NULL
+      ) namespace_ids
+    );
+    EOF
+
+    if defined?(Gitlab::License)
+      # EE adds these columns but we have to make sure this data is cleaned up
+      # here before we run the DELETE below. An alternative would be patching
+      # this migration in EE but this will only result in a mess and confusing
+      # migrations.
+      execute <<-EOF.strip_heredoc
+      DELETE FROM protected_branch_push_access_levels
+      WHERE group_id IN (
+        SELECT id FROM (
+          SELECT id
+          FROM namespaces
+          WHERE deleted_at IS NOT NULL
+        ) namespace_ids
+      );
+      EOF
+
+      execute <<-EOF.strip_heredoc
+      DELETE FROM protected_branch_merge_access_levels
+      WHERE group_id IN (
+        SELECT id FROM (
+          SELECT id
+          FROM namespaces
+          WHERE deleted_at IS NOT NULL
+        ) namespace_ids
+      );
+      EOF
+    end
+
+    # This removes namespaces that were supposed to be soft deleted but still
+    # reside in the database.
+    execute "DELETE FROM namespaces WHERE deleted_at IS NOT NULL;"
+  end
+
+  def down
+    # This is an irreversible migration;
+    # If someone is trying to rollback for other reasons, we should not throw an Exception.
+    # raise ActiveRecord::IrreversibleMigration
+  end
+end