1 files changed, 0 insertions, 45 deletions
diff --git a/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb b/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb
deleted file mode 100644
index 250928a6551..00000000000
--- a/db/migrate/20171114161914_merge_requests_source_project_id_foreign_key.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MergeRequestsSourceProjectIdForeignKey < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class MergeRequest < ActiveRecord::Base
-    include EachBatch
-
-    self.table_name = 'merge_requests'
-
-    def self.with_orphaned_source_projects
-      where('NOT EXISTS (SELECT true FROM projects WHERE merge_requests.source_project_id = projects.id)')
-        .where('source_project_id IS NOT NULL')
-    end
-  end
-
-  def up
-    # We need to allow NULL values so we can nullify the column when the source
-    # project is removed. We _don't_ want to remove the merge request, instead
-    # the application will keep them but close them.
-    change_column_null(:merge_requests, :source_project_id, true)
-
-    MergeRequest.with_orphaned_source_projects.each_batch(of: 100) do |batch|
-      batch.update_all(source_project_id: nil)
-    end
-
-    add_concurrent_foreign_key(
-      :merge_requests,
-      :projects,
-      column: :source_project_id,
-      on_delete: :nullify
-    )
-  end
-
-  def down
-    remove_foreign_key_without_error(:merge_requests, column: :source_project_id)
-    change_column_null(:merge_requests, :source_project_id, false)
-  end
-end