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# frozen_string_literal: true
module Gitlab
module Database
module AsyncConstraints
module MigrationHelpers
# Prepares a foreign key for asynchronous validation.
#
# Stores the FK information in the postgres_async_constraint_validations
# table to be executed later.
#
def prepare_async_foreign_key_validation(table_name, column_name = nil, name: nil)
Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas.require_ddl_mode!
return unless async_constraint_validation_available?
fk_name = name || concurrent_foreign_key_name(table_name, column_name)
unless foreign_key_exists?(table_name, name: fk_name)
raise missing_schema_object_message(table_name, "foreign key", fk_name)
end
async_validation = PostgresAsyncConstraintValidation
.foreign_key_type
.find_or_create_by!(name: fk_name, table_name: table_name)
Gitlab::AppLogger.info(
message: 'Prepared FK for async validation',
table_name: async_validation.table_name,
fk_name: async_validation.name)
async_validation
end
def unprepare_async_foreign_key_validation(table_name, column_name = nil, name: nil)
Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas.require_ddl_mode!
return unless async_constraint_validation_available?
fk_name = name || concurrent_foreign_key_name(table_name, column_name)
PostgresAsyncConstraintValidation
.foreign_key_type
.find_by(name: fk_name, table_name: table_name)
.try(&:destroy!)
end
def prepare_partitioned_async_foreign_key_validation(table_name, column_name = nil, name: nil)
Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas.require_ddl_mode!
return unless async_constraint_validation_available?
Gitlab::Database::PostgresPartitionedTable.each_partition(table_name) do |partition|
prepare_async_foreign_key_validation(partition.identifier, column_name, name: name)
end
end
def unprepare_partitioned_async_foreign_key_validation(table_name, column_name = nil, name: nil)
Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas.require_ddl_mode!
return unless async_constraint_validation_available?
Gitlab::Database::PostgresPartitionedTable.each_partition(table_name) do |partition|
unprepare_async_foreign_key_validation(partition.identifier, column_name, name: name)
end
end
private
def async_constraint_validation_available?
PostgresAsyncConstraintValidation.table_available?
end
end
end
end
end
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