Merge branch 'dz-merge-request-version'

2 files changed, 38 insertions, 0 deletions

diff --git a/db/migrate/20160725104020_merge_request_diff_remove_uniq.rb b/db/migrate/20160725104020_merge_request_diff_remove_uniq.rb
new file mode 100644
index 00000000000..c8cbd2718ff
--- /dev/null
+++ b/db/migrate/20160725104020_merge_request_diff_remove_uniq.rb
@@ -0,0 +1,21 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeRequestDiffRemoveUniq < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+  disable_ddl_transaction!
+
+  DOWNTIME = false
+
+  def up
+    if index_exists?(:merge_request_diffs, :merge_request_id)
+      remove_index :merge_request_diffs, :merge_request_id
+    end
+  end
+
+  def down
+    unless index_exists?(:merge_request_diffs, :merge_request_id)
+      add_concurrent_index :merge_request_diffs, :merge_request_id, unique: true
+    end
+  end
+end
diff --git a/db/migrate/20160725104452_merge_request_diff_add_index.rb b/db/migrate/20160725104452_merge_request_diff_add_index.rb
new file mode 100644
index 00000000000..6d04242dd25
--- /dev/null
+++ b/db/migrate/20160725104452_merge_request_diff_add_index.rb
@@ -0,0 +1,17 @@
+class MergeRequestDiffAddIndex < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+  disable_ddl_transaction!
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def up
+    add_concurrent_index :merge_request_diffs, :merge_request_id
+  end
+
+  def down
+    if index_exists?(:merge_request_diffs, :merge_request_id)
+      remove_index :merge_request_diffs, :merge_request_id
+    end
+  end
+end