38 lines
1 KiB
Ruby
38 lines
1 KiB
Ruby
# frozen_string_literal: true
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class CreateNamespacesSyncTrigger < Gitlab::Database::Migration[1.0]
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include Gitlab::Database::SchemaHelpers
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enable_lock_retries!
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TABLE_NAME = 'namespaces'
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EVENT_TABLE_NAME = 'namespaces_sync_events'
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FUNCTION_NAME = 'insert_namespaces_sync_event'
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TRIGGER_ON_INSERT = 'trigger_namespaces_parent_id_on_insert'
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TRIGGER_ON_UPDATE = 'trigger_namespaces_parent_id_on_update'
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def up
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create_trigger_function(FUNCTION_NAME) do
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<<~SQL
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INSERT INTO #{EVENT_TABLE_NAME} (namespace_id)
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VALUES(COALESCE(NEW.id, OLD.id));
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RETURN NULL;
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SQL
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end
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create_trigger(TABLE_NAME, TRIGGER_ON_INSERT, FUNCTION_NAME, fires: 'AFTER INSERT')
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create_trigger(TABLE_NAME, TRIGGER_ON_UPDATE, FUNCTION_NAME, fires: 'AFTER UPDATE') do
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<<~SQL
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WHEN (OLD.parent_id IS DISTINCT FROM NEW.parent_id)
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SQL
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end
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end
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def down
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drop_trigger(TABLE_NAME, TRIGGER_ON_INSERT)
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drop_trigger(TABLE_NAME, TRIGGER_ON_UPDATE)
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drop_function(FUNCTION_NAME)
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end
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end
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