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26 lines
716 B
SQL
26 lines
716 B
SQL
-- Remove all self referencing parent product definitions
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UPDATE products
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SET parent_product_id = null
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WHERE id = parent_product_id;
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CREATE TRIGGER prevent_self_referenced_parent_product_INS AFTER INSERT ON products
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BEGIN
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SELECT CASE WHEN((
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SELECT 1
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FROM products p
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WHERE p.id = NEW.id
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AND p.id = p.parent_product_id
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)
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NOTNULL) THEN RAISE(ABORT, 'A product cannot reference itself as a parent product') END;
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END;
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CREATE TRIGGER prevent_self_referenced_parent_product_UPD AFTER UPDATE ON products
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BEGIN
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SELECT CASE WHEN((
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SELECT 1
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FROM products p
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WHERE p.id = NEW.id
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AND p.id = p.parent_product_id
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) NOTNULL) THEN RAISE(ABORT, 'A product cannot reference itself as a parent product') END;
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END;
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