db/migrate/20171230123729_add_rebase_commit_sha_to_merge_requests_ce.rb


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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