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psp_api/fix_trigger.sql
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-- Corrected triggers for sales invoice items
DROP TRIGGER IF EXISTS `trg_sales_invoice_items_before_insert`;
CREATE DEFINER=`pos`@`%` TRIGGER `trg_sales_invoice_items_before_insert` BEFORE INSERT ON `Sales_Invoice_Items` FOR EACH ROW begin
DECLARE current_stock DECIMAL(10,2);
DECLARE inventory_id INT;
SELECT pa.inventoryId INTO inventory_id
FROM Pos_Accounts pa
INNER JOIN Sales_Invoices si ON pa.id = si.posAccountId
WHERE si.id = NEW.invoiceId;
SELECT COALESCE(quantity, 0) INTO current_stock
FROM Stock_Balance sb
WHERE productId = NEW.productId AND sb.inventoryId = inventory_id
LIMIT 1;
IF NEW.count > current_stock THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Not enough stock to complete sale.';
END IF;
end;
DROP TRIGGER IF EXISTS `trg_sales_invoice_items_after_insert`;
CREATE DEFINER=`pos`@`%` TRIGGER `trg_sales_invoice_items_after_insert` AFTER INSERT ON `Sales_Invoice_Items` FOR EACH ROW begin DECLARE current_stock DECIMAL(10, 2);
DECLARE inventory_id INT;
DECLARE customer_id INT;
DECLARE pos_id INT;
INSERT INTO Trigger_Logs (name , message) VALUES ('pos_id', 'init');
SELECT posAccountId, customerId INTO pos_id, customer_id
FROM Sales_Invoices si
WHERE si.id = NEW.invoiceId
LIMIT 1;
INSERT INTO Trigger_Logs (name , message) VALUES ('pos_id', pos_id);
INSERT INTO Trigger_Logs (name , message) VALUES ('customer_id', customer_id);
SELECT pa.inventoryId INTO inventory_id
FROM Pos_Accounts pa
INNER JOIN Sales_Invoices si ON pa.id = si.posAccountId
WHERE si.id = NEW.invoiceId;
SELECT COALESCE(quantity, 0) INTO current_stock
FROM Stock_Balance sb
WHERE productId = NEW.productId AND sb.inventoryId = inventory_id
LIMIT 1;
INSERT INTO Trigger_Logs (name , message) VALUES ('invId', inventory_id);
INSERT INTO Stock_Movements (
type,
quantity,
fee,
totalCost,
referenceType,
referenceId,
productId,
inventoryId,
avgCost,
remainedInStock,
customerId,
createdAt
)
VALUES (
'OUT',
NEW.count,
NEW.fee,
NEW.total,
'SALES',
NEW.invoiceId,
NEW.productId,
inventory_id,
CASE
WHEN NEW.count = 0 THEN 0
ELSE NEW.total / NEW.count
END,
current_stock - NEW.count,
customer_id,
NOW()
);
END