2019-02-15 15:39:39 +05:30
|
|
|
class AddUniqueConstraintToCiVariables < ActiveRecord::Migration[4.2]
|
2017-09-10 17:25:29 +05:30
|
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
|
|
|
|
DOWNTIME = false
|
2018-11-08 19:23:39 +05:30
|
|
|
INDEX_NAME = 'index_ci_variables_on_project_id_and_key_and_environment_scope'
|
2017-09-10 17:25:29 +05:30
|
|
|
|
|
|
|
disable_ddl_transaction!
|
|
|
|
|
|
|
|
def up
|
|
|
|
unless this_index_exists?
|
2018-11-08 19:23:39 +05:30
|
|
|
add_concurrent_index(:ci_variables, columns, name: INDEX_NAME, unique: true)
|
2017-09-10 17:25:29 +05:30
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def down
|
|
|
|
if this_index_exists?
|
|
|
|
if Gitlab::Database.mysql? && !index_exists?(:ci_variables, :project_id)
|
|
|
|
# Need to add this index for MySQL project_id foreign key constraint
|
|
|
|
add_concurrent_index(:ci_variables, :project_id)
|
|
|
|
end
|
|
|
|
|
2018-11-08 19:23:39 +05:30
|
|
|
remove_concurrent_index(:ci_variables, columns, name: INDEX_NAME)
|
2017-09-10 17:25:29 +05:30
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
private
|
|
|
|
|
|
|
|
def this_index_exists?
|
2018-11-08 19:23:39 +05:30
|
|
|
index_exists?(:ci_variables, columns, name: INDEX_NAME)
|
2017-09-10 17:25:29 +05:30
|
|
|
end
|
|
|
|
|
|
|
|
def columns
|
|
|
|
@columns ||= [:project_id, :key, :environment_scope]
|
|
|
|
end
|
|
|
|
end
|