Add latest changes from gitlab-org/gitlab@master

1 files changed, 23 insertions, 0 deletions

diff --git a/db/migrate/20191216074802_add_epic_start_date_sourcing_milestone_id_foreign_key.rb b/db/migrate/20191216074802_add_epic_start_date_sourcing_milestone_id_foreign_key.rb
new file mode 100644
index 00000000000..1c0713ec586
--- /dev/null
+++ b/db/migrate/20191216074802_add_epic_start_date_sourcing_milestone_id_foreign_key.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class AddEpicStartDateSourcingMilestoneIdForeignKey < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_foreign_key :epics, :milestones, column: start_date_column, on_delete: :nullify, validate: false
+  end
+
+  def down
+    remove_foreign_key_if_exists :epics, column: start_date_column
+  end
+
+  private
+
+  def start_date_column
+    :start_date_sourcing_milestone_id
+  end
+end