Fix rebase commit SHA migration name

This already existed in EE with a different timestamp, so rename for CE and make it idempotent.

Fix rebase commit SHA migration name
9ca49f88 · Sean McGivern · 3d162d19 · 3d162d19 · 9ca49f88
Commit 9ca49f88 authored Jan 05, 2018 by Sean McGivern
2 changed files
--- a/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests.rb
+++ b/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests.rb
-class AddRebaseCommitShaToMergeRequests < ActiveRecord::Migration
-  DOWNTIME = false
-
-  def change
-    add_column :merge_requests, :rebase_commit_sha, :string
-  end
-end
--- a/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb
+++ b/db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb
+class AddRebaseCommitShaToMergeRequestsCe < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def up
+    unless column_exists?(:merge_requests, :rebase_commit_sha)
+      add_column :merge_requests, :rebase_commit_sha, :string
+    end
+  end
+
+  def down
+    if column_exists?(:merge_requests, :rebase_commit_sha)
+      remove_column :merge_requests, :rebase_commit_sha
+    end
+  end
+end