37 lines
1.2 KiB
Ruby
37 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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class UpdateLockWritesFunctionDisabledViaSetting < Gitlab::Database::Migration[2.0]
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TRIGGER_FUNCTION_NAME = 'gitlab_schema_prevent_write'
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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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$$
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BEGIN
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IF COALESCE(NULLIF(current_setting(CONCAT('lock_writes.', TG_TABLE_NAME), true), ''), 'true') THEN
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RAISE EXCEPTION 'Table: "%" is write protected within this Gitlab database.', TG_TABLE_NAME
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USING ERRCODE = 'modifying_sql_data_not_permitted',
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HINT = 'Make sure you are using the right database connection';
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END IF;
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RETURN NEW;
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END
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$$ LANGUAGE PLPGSQL;
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SQL
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end
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def down
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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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end
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