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# frozen_string_literal: true
class SwapColumnsForCiPipelineChatDataPipelineIdBigint < Gitlab::Database::Migration[2.1]
disable_ddl_transaction!
TABLE_NAME = :ci_pipeline_chat_data
TARGET_TABLE_NAME = :ci_pipelines
TRIGGER_FUNCTION_NAME = :trigger_239c8032a8d6
COLUMN_NAME = :pipeline_id
BIGINT_COLUMN_NAME = :pipeline_id_convert_to_bigint
LEGACY_FK_NAME = :fk_rails_64ebfab6b3
FK_NAME = :fk_64ebfab6b3
BIGINT_FK_NAME = :fk_5b21bde562
def up
swap
end
def down
swap
end
private
def swap
with_lock_retries(raise_on_exhaustion: true) do
# Lock the tables involved.
execute "LOCK TABLE #{TARGET_TABLE_NAME}, #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
# Rename the columns to swap names
temp_name = "temp_#{COLUMN_NAME}"
rename_column TABLE_NAME, COLUMN_NAME, temp_name # rubocop:disable Migration/WithLockRetriesDisallowedMethod
rename_column TABLE_NAME, BIGINT_COLUMN_NAME, COLUMN_NAME # rubocop:disable Migration/WithLockRetriesDisallowedMethod
rename_column TABLE_NAME, temp_name, BIGINT_COLUMN_NAME # rubocop:disable Migration/WithLockRetriesDisallowedMethod
# Reset the trigger function
execute "ALTER FUNCTION #{quote_column_name(TRIGGER_FUNCTION_NAME)} RESET ALL"
# Swap the defaults
change_column_default TABLE_NAME, COLUMN_NAME, nil
change_column_default TABLE_NAME, BIGINT_COLUMN_NAME, 0
# Swap fkey constraint
if foreign_key_exists?(TABLE_NAME, name: LEGACY_FK_NAME)
execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{LEGACY_FK_NAME} TO #{FK_NAME}"
end
temp_fk_name = "temp_#{FK_NAME}"
execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{FK_NAME} TO #{temp_fk_name}"
execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{BIGINT_FK_NAME} TO #{FK_NAME}"
execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{temp_fk_name} TO #{BIGINT_FK_NAME}"
end
end
end
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