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# frozen_string_literal: true
class AddTriggerOnOrganizations < Gitlab::Database::Migration[2.1]
include Gitlab::Database::SchemaHelpers
TABLE_NAME = 'organizations'
FUNCTION_NAME = 'prevent_delete_of_default_organization'
TRIGGER_NAME = 'prevent_delete_of_default_organization_before_destroy'
def up
default_org_id = Organizations::Organization::DEFAULT_ORGANIZATION_ID
create_trigger_function(FUNCTION_NAME) do
<<~SQL
IF OLD.id = #{default_org_id} THEN
RAISE EXCEPTION 'Deletion of the default Organization is not allowed.';
END IF;
RETURN OLD;
SQL
end
create_trigger(TABLE_NAME, TRIGGER_NAME, FUNCTION_NAME, fires: 'BEFORE DELETE')
end
def down
drop_trigger(TABLE_NAME, TRIGGER_NAME)
drop_function(FUNCTION_NAME)
end
end
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