feat(database): initialize database schema and triggers
- Created initial database schema with tables for Users, Roles, Products, and related entities. - Added foreign key constraints to maintain data integrity across tables. - Implemented triggers for managing stock movements on insert, update, and delete operations. - Developed scripts to dump existing triggers and pull trigger definitions from the database.
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-- AUTO-GENERATED MYSQL TRIGGER DUMP
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-- Generated at: 2025-12-10T10:03:36.966Z
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-- ------------------------------------------
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-- Trigger: trg_transfer_item_after_insert
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-- Event: INSERT
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-- Table: Inventory_Transfer_Items
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_transfer_item_after_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_transfer_item_after_insert` AFTER INSERT ON `Inventory_Transfer_Items` FOR EACH ROW begin
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DECLARE fromInv INT;
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DECLARE toInv INT;
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SELECT fromInventoryId, toInventoryId INTO fromInv, toInv
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FROM Inventory_Transfers WHERE id = NEW.transferId;
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-- OUT from source
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INSERT INTO Stock_Movements
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(type, quantity, referenceType, referenceId, productId, inventoryId, createdAt)
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VALUES
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('OUT', NEW.count, 'InventoryTransfer', NEW.transferId, NEW.productId, fromInv, NOW());
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-- IN to destination
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INSERT INTO Stock_Movements
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(type, quantity, referenceType, referenceId, productId, inventoryId, createdAt)
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VALUES
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('IN', NEW.count, 'InventoryTransfer', NEW.transferId, NEW.productId, toInv, NOW());
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end;
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-- ------------------------------------------
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-- Trigger: trg_purchase_receipt_item_after_insert
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-- Event: INSERT
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-- Table: Purchase_Receipt_Items
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_purchase_receipt_item_after_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_purchase_receipt_item_after_insert` AFTER INSERT ON `Purchase_Receipt_Items` FOR EACH ROW begin
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INSERT INTO Stock_Movements
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(
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type,
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quantity,
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fee,
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totalCost,
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referenceType,
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referenceId,
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productId,
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inventoryId,
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avgCost,
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createdAt
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)
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VALUES
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(
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'IN',
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NEW.count,
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NEW.fee,
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NEW.total,
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'PURCHASE',
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NEW.receiptId,
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NEW.productId,
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(SELECT inventoryId FROM Purchase_Receipts WHERE id = NEW.receiptId),
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NEW.total / NEW.count,
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NOW()
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);
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end;
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-- ------------------------------------------
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-- Trigger: trg_purchase_receipt_item_after_update
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-- Event: UPDATE
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-- Table: Purchase_Receipt_Items
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_purchase_receipt_item_after_update`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_purchase_receipt_item_after_update` AFTER UPDATE ON `Purchase_Receipt_Items` FOR EACH ROW begin
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DELETE FROM Stock_Movements
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WHERE referenceType = 'PURCHASE'
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AND referenceId = NEW.receiptId
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AND productId = NEW.productId;
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INSERT INTO Stock_Movements
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(
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type,
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quantity,
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referenceType,
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referenceId,
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productId,
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inventoryId,
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createdAt
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)
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VALUES
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(
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'IN',
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NEW.count,
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'SALES',
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NEW.id,
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NEW.productId,
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(SELECT inventoryId FROM Stores LIMIT 1),
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NOW()
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);
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end;
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-- ------------------------------------------
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-- Trigger: trg_purchase_receipt_item_after_delete
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-- Event: DELETE
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-- Table: Purchase_Receipt_Items
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_purchase_receipt_item_after_delete`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_purchase_receipt_item_after_delete` AFTER DELETE ON `Purchase_Receipt_Items` FOR EACH ROW begin
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DELETE FROM Stock_Movements
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WHERE referenceType = 'PURCHASE'
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AND referenceId = OLD.receiptId
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AND productId = OLD.productId;
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end;
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-- ------------------------------------------
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-- Trigger: trg_sales_invoice_items_before_insert
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-- Event: INSERT
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-- Table: Sales_Invoice_Items
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_sales_invoice_items_before_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_sales_invoice_items_before_insert` BEFORE INSERT ON `Sales_Invoice_Items` FOR EACH ROW begin
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DECLARE current_stock DECIMAL(10,2);
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SELECT stock INTO current_stock
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FROM stock_view
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WHERE productId = NEW.productId
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LIMIT 1;
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IF current_stock IS NULL THEN
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SET current_stock = 0;
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END IF;
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IF NEW.count > current_stock THEN
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SIGNAL SQLSTATE '45000'
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SET MESSAGE_TEXT = 'Not enough stock to complete sale.';
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END IF;
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end;
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-- ------------------------------------------
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-- Trigger: trg_sales_invoice_items_after_insert
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-- Event: INSERT
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-- Table: Sales_Invoice_Items
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_sales_invoice_items_after_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_sales_invoice_items_after_insert` AFTER INSERT ON `Sales_Invoice_Items` FOR EACH ROW begin
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INSERT INTO Stock_Movements
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(
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type,
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quantity,
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referenceType,
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referenceId,
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productId,
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inventoryId,
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createdAt
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)
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VALUES
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(
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'IN',
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NEW.count,
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'PURCHASE',
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NEW.id,
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NEW.productId,
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(SELECT inventoryId FROM Sales_Invoices WHERE id = NEW.id),
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NOW()
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);
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end;
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-- ------------------------------------------
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-- Trigger: trg_stock_adjustment_after_insert
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-- Event: INSERT
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-- Table: Stock_Adjustments
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_adjustment_after_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_adjustment_after_insert` AFTER INSERT ON `Stock_Adjustments` FOR EACH ROW begin
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INSERT INTO Stock_Movements
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(type, quantity, referenceType, referenceId, productId, inventoryId, createdAt)
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VALUES
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('ADJUST', NEW.adjustedQuantity, 'ADJUSTMENT', NEW.id, NEW.productId, NEW.inventoryId, NOW());
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end;
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-- ------------------------------------------
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-- Trigger: trg_stock_sale_insert
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-- Event: INSERT
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_sale_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_sale_insert` AFTER INSERT ON `Stock_Movements` FOR EACH ROW BEGIN
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IF NEW.referenceType = 'SALES' THEN
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UPDATE stock_balance
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SET
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quantity = quantity - NEW.quantity,
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totalCost = quantity * avgCost
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WHERE productId = NEW.productId ;
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END IF;
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END;
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-- ------------------------------------------
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-- Trigger: trg_stock_purchase_insert
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-- Event: INSERT
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_purchase_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_purchase_insert` AFTER INSERT ON `Stock_Movements` FOR EACH ROW BEGIN
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IF NEW.referenceType = 'PURCHASE' THEN
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INSERT INTO stock_balance (productId, quantity, avgCost, totalCost)
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VALUES (
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NEW.productId,
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NEW.quantity,
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NEW.fee,
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NEW.totalCost
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)
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ON DUPLICATE KEY UPDATE
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quantity = quantity + NEW.quantity,
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totalCost = totalCost + NEW.totalCost,
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avgCost = totalCost / quantity;
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END IF;
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END;
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-- ------------------------------------------
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-- Trigger: trg_stock_movement_after_insert
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-- Event: INSERT
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_movement_after_insert`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_movement_after_insert` AFTER INSERT ON `Stock_Movements` FOR EACH ROW begin
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UPDATE Products pv
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SET pv.quantity = (
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SELECT COALESCE(SUM(
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CASE
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WHEN type = 'IN' THEN quantity
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WHEN type = 'OUT' THEN -quantity
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WHEN type = 'ADJUST' THEN quantity
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END
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), 0)
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FROM Stock_Movements
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WHERE productId = NEW.productId
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)
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WHERE pv.id = NEW.productId;
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end;
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-- ------------------------------------------
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-- Trigger: trg_stock_sale_update
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-- Event: UPDATE
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_sale_update`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_sale_update` AFTER UPDATE ON `Stock_Movements` FOR EACH ROW BEGIN
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IF OLD.referenceType = 'SALES' THEN
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UPDATE stock_balance
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SET
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quantity = quantity + OLD.quantity,
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totalCost = (quantity + OLD.quantity) * avgCost
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WHERE productId = OLD.productId;
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END IF;
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IF NEW.referenceType = 'SALES' THEN
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UPDATE stock_balance
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SET
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quantity = quantity - NEW.quantity,
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totalCost = (quantity - NEW.quantity) * avgCost
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WHERE productId = NEW.productId;
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END IF;
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END;
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-- ------------------------------------------
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-- Trigger: trg_stock_purchase_update
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-- Event: UPDATE
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_purchase_update`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_purchase_update` AFTER UPDATE ON `Stock_Movements` FOR EACH ROW BEGIN
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IF OLD.referenceType = 'PURCHASE' THEN
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UPDATE stock_balance
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SET
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quantity = quantity - OLD.quantity,
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totalCost = totalCost - (OLD.quantity * OLD.fee)
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WHERE productId = OLD.productId;
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END IF;
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IF NEW.referenceType = 'PURCHASE' THEN
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INSERT INTO stock_balance (productId, quantity, avgCost, totalCost)
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VALUES (
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NEW.productId,
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NEW.quantity,
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NEW.fee,
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NEW.totalCost
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)
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ON DUPLICATE KEY UPDATE
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quantity = quantity + NEW.quantity,
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totalCost = totalCost + NEW.totalCost,
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avgCost = totalCost / quantity;
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END IF;
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END;
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-- ------------------------------------------
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-- Trigger: trg_stock_sale_delete
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-- Event: DELETE
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_sale_delete`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_sale_delete` AFTER DELETE ON `Stock_Movements` FOR EACH ROW BEGIN
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IF OLD.ReferenceType = 'SALES' THEN
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UPDATE stock_balance
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SET
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quantity = quantity + OLD.quantity,
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totalCost = (quantity + OLD.quantity) * avgCost
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WHERE productId = OLD.productId;
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END IF;
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END;
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-- ------------------------------------------
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-- Trigger: trg_stock_purchase_delete
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-- Event: DELETE
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-- Table: Stock_Movements
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-- ------------------------------------------
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DROP TRIGGER IF EXISTS `trg_stock_purchase_delete`;
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CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_purchase_delete` AFTER DELETE ON `Stock_Movements` FOR EACH ROW BEGIN
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IF OLD.referenceType = 'PURCHASE' THEN
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UPDATE stock_balance
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SET
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quantity = quantity - OLD.quantity,
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totalCost = totalCost - (OLD.quantity * OLD.fee),
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avgCost = CASE
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WHEN quantity - OLD.quantity = 0 THEN 0
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ELSE (totalCost - (OLD.quantity * OLD.fee)) / (quantity - OLD.quantity)
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END
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WHERE productId = OLD.productId;
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END IF;
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END;
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