Fix incorrect columns in import scripts

inventory-server/db/schema.sql

@@ -1,14 +1,22 @@
 -- Enable strict error reporting
 SET session_replication_role = 'replica';  -- Disable foreign key checks temporarily
 
+-- Create function for updating timestamps
+CREATE OR REPLACE FUNCTION update_updated_column() RETURNS TRIGGER AS $func$
+BEGIN
+    NEW.updated = CURRENT_TIMESTAMP;
+    RETURN NEW;
+END;
+$func$ language plpgsql;
+
 -- Create tables
 CREATE TABLE products (
     pid BIGINT NOT NULL,
     title VARCHAR(255) NOT NULL,
     description TEXT,
     SKU VARCHAR(50) NOT NULL,
-    created_at TIMESTAMP,
-    first_received TIMESTAMP,
+    created_at TIMESTAMP WITH TIME ZONE,
+    first_received TIMESTAMP WITH TIME ZONE,
     stock_quantity INTEGER DEFAULT 0,
     preorder_count INTEGER DEFAULT 0,
     notions_inv_count INTEGER DEFAULT 0,
@@ -18,7 +26,7 @@ CREATE TABLE products (
     landing_cost_price DECIMAL(10, 3),
     barcode VARCHAR(50),
     harmonized_tariff_code VARCHAR(20),
-    updated_at TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE,
     visible BOOLEAN DEFAULT true,
     managing_stock BOOLEAN DEFAULT true,
     replenishable BOOLEAN DEFAULT true,
@@ -50,10 +58,16 @@ CREATE TABLE products (
     baskets INTEGER DEFAULT 0,
     notifies INTEGER DEFAULT 0,
     date_last_sold DATE,
-    updated TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     PRIMARY KEY (pid)
 );
 
+-- Create trigger for products
+CREATE TRIGGER update_products_updated
+    BEFORE UPDATE ON products
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
 -- Create indexes for products table
 CREATE INDEX idx_products_sku ON products(SKU);
 CREATE INDEX idx_products_vendor ON products(vendor);
@@ -70,12 +84,18 @@ CREATE TABLE categories (
     type SMALLINT NOT NULL,
     parent_id BIGINT,
     description TEXT,
-    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
     status VARCHAR(20) DEFAULT 'active',
     FOREIGN KEY (parent_id) REFERENCES categories(cat_id)
 );
 
+-- Create trigger for categories
+CREATE TRIGGER update_categories_updated_at
+    BEFORE UPDATE ON categories
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
 COMMENT ON COLUMN categories.type IS '10=section, 11=category, 12=subcategory, 13=subsubcategory, 1=company, 2=line, 3=subline, 40=artist';
 
 CREATE INDEX idx_categories_parent ON categories(parent_id);
@@ -113,10 +133,16 @@ CREATE TABLE orders (
     customer_name VARCHAR(100),
     status VARCHAR(20) DEFAULT 'pending',
     canceled BOOLEAN DEFAULT false,
-    updated TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     UNIQUE (order_number, pid)
 );
 
+-- Create trigger for orders
+CREATE TRIGGER update_orders_updated
+    BEFORE UPDATE ON orders
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
 CREATE INDEX idx_orders_number ON orders(order_number);
 CREATE INDEX idx_orders_pid ON orders(pid);
 CREATE INDEX idx_orders_customer ON orders(customer);
@@ -147,11 +173,17 @@ CREATE TABLE purchase_orders (
     last_received_date DATE,
     received_by VARCHAR(100),
     receiving_history JSONB,
-    updated TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     FOREIGN KEY (pid) REFERENCES products(pid),
     UNIQUE (po_id, pid)
 );
 
+-- Create trigger for purchase_orders
+CREATE TRIGGER update_purchase_orders_updated
+    BEFORE UPDATE ON purchase_orders
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_column();
+
 COMMENT ON COLUMN purchase_orders.name IS 'Product name from products.description';
 COMMENT ON COLUMN purchase_orders.po_cost_price IS 'Original cost from PO, before receiving adjustments';
 COMMENT ON COLUMN purchase_orders.status IS '0=canceled,1=created,10=electronically_ready_send,11=ordered,12=preordered,13=electronically_sent,15=receiving_started,50=done';