AddUniqueKeyDelayedJobs

# File lib/generators/delayed_job_unique_key/templates/add_unique_key_migration.rb, line 7
def self.down
  remove_index :delayed_jobs, :name => 'delayed_jobs_unique_key'
  remove_column :delayed_jobs, :unique_key
end

# File lib/generators/delayed_job_unique_key/templates/add_unique_key_migration.rb, line 2
def self.up
  add_column :delayed_jobs, :unique_key, :string
  add_index :delayed_jobs, [:unique_key, :locked_at], :name => 'delayed_jobs_unique_key'
end