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# frozen_string_literal: true
class <%= migration_class_name %> < Gitlab::Database::Migration[<%= Gitlab::Database::Migration.current_version %>]
disable_ddl_transaction!
SOURCE_TABLE_NAME = :<%= source_table_name %>
TARGET_TABLE_NAME = :<%= target_table_name %>
COLUMN = :<%= foreign_key_column %>
TARGET_COLUMN = :<%= fk_target_column %>
FK_NAME = :<%= foreign_key_name %>
def up
with_lock_retries do
remove_foreign_key_if_exists(
SOURCE_TABLE_NAME,
TARGET_TABLE_NAME,
name: FK_NAME,
reverse_lock_order: true
)
end
end
def down
add_concurrent_foreign_key(
SOURCE_TABLE_NAME,
TARGET_TABLE_NAME,
column: COLUMN,
target_column: TARGET_COLUMN,
validate: true,
reverse_lock_order: true,
on_delete: :<%= fk_on_delete_option %>,
name: FK_NAME
)
end
end
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