17 lines
773 B
SQL
17 lines
773 B
SQL
-- Add VAT columns to pos_items
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ALTER TABLE pos_items ADD COLUMN vat_rate DECIMAL(5,2) DEFAULT 0.00 AFTER unit_price;
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ALTER TABLE pos_items ADD COLUMN vat_amount DECIMAL(15,3) DEFAULT 0.000 AFTER vat_rate;
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-- Update existing pos_items if possible (optional, but good for consistency)
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-- This might not be accurate if items changed their vat rate after transaction,
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-- but it's better than nothing.
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UPDATE pos_items pi
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JOIN stock_items si ON pi.product_id = si.id
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SET pi.vat_rate = si.vat_rate;
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UPDATE pos_items SET vat_amount = subtotal * (vat_rate / (100 + vat_rate));
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-- Update pos_transactions to ensure tax_amount is populated for old transactions
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UPDATE pos_transactions pt
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SET tax_amount = (SELECT SUM(vat_amount) FROM pos_items WHERE transaction_id = pt.id);
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