debian-mirror-gitlab/lib/gitlab/database/custom_structure.rb

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2020-06-23 00:09:42 +05:30
# frozen_string_literal: true
module Gitlab
module Database
class CustomStructure
CUSTOM_DUMP_FILE = 'db/gitlab_structure.sql'
def dump
File.open(self.class.custom_dump_filepath, 'wb') do |io|
io << "-- this file tracks custom GitLab data, such as foreign keys referencing partitioned tables\n"
io << "-- more details can be found in the issue: https://gitlab.com/gitlab-org/gitlab/-/issues/201872\n"
io << "SET search_path=public;\n\n"
dump_partitioned_foreign_keys(io) if partitioned_foreign_keys_exist?
end
end
def self.custom_dump_filepath
Rails.root.join(CUSTOM_DUMP_FILE)
end
private
def dump_partitioned_foreign_keys(io)
io << "COPY partitioned_foreign_keys (#{partitioned_fk_columns.join(", ")}) FROM STDIN;\n"
PartitioningMigrationHelpers::PartitionedForeignKey.find_each do |fk|
io << fk.attributes.values_at(*partitioned_fk_columns).join("\t") << "\n"
end
io << "\\.\n"
end
def partitioned_foreign_keys_exist?
return false unless PartitioningMigrationHelpers::PartitionedForeignKey.table_exists?
PartitioningMigrationHelpers::PartitionedForeignKey.exists?
end
def partitioned_fk_columns
@partitioned_fk_columns ||= PartitioningMigrationHelpers::PartitionedForeignKey.column_names
end
end
end
end