33 lines
893 B
Ruby
33 lines
893 B
Ruby
# frozen_string_literal: true
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class CreateFunctionGitlabSchemaPreventWrite < Gitlab::Database::Migration[2.0]
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TRIGGER_FUNCTION_NAME = 'gitlab_schema_prevent_write'
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enable_lock_retries!
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# This migration is only to make sure that the lock-write trigger function
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# matches what we already have on staging/production for Gitlab.com
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def up
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execute(<<~SQL)
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CREATE OR REPLACE FUNCTION #{TRIGGER_FUNCTION_NAME}()
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RETURNS TRIGGER AS
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$$
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BEGIN
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RAISE EXCEPTION 'Table: "%" is write protected within this Gitlab database.', TG_TABLE_NAME
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USING ERRCODE = 'modifying_sql_data_not_permitted',
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HINT = 'Make sure you are using the right database connection';
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END
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$$ LANGUAGE PLPGSQL
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SQL
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end
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def down
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return if Gitlab.com?
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execute(<<~SQL)
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DROP FUNCTION #{TRIGGER_FUNCTION_NAME}
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SQL
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end
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end
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