chore: upload parte 2 - assets

scripts/006-create-customers-and-orders.sql

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+-- Customers table
+CREATE TABLE IF NOT EXISTS customers (
+  id SERIAL PRIMARY KEY,
+  name VARCHAR(255) NOT NULL,
+  code VARCHAR(50) UNIQUE NOT NULL,
+  email VARCHAR(255),
+  phone VARCHAR(50),
+  address TEXT,
+  contact_person VARCHAR(255),
+  notes TEXT,
+  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+  updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Purchase Orders table
+CREATE TABLE IF NOT EXISTS purchase_orders (
+  id SERIAL PRIMARY KEY,
+  po_number VARCHAR(100) UNIQUE NOT NULL,
+  customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
+  status VARCHAR(20) DEFAULT 'draft' CHECK (status IN ('draft', 'confirmed', 'in_production', 'completed', 'cancelled')),
+  order_date DATE DEFAULT CURRENT_DATE,
+  due_date DATE,
+  notes TEXT,
+  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+  updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Purchase Order Items (line items linking products with quantities)
+CREATE TABLE IF NOT EXISTS purchase_order_items (
+  id SERIAL PRIMARY KEY,
+  purchase_order_id INTEGER NOT NULL REFERENCES purchase_orders(id) ON DELETE CASCADE,
+  product_id INTEGER NOT NULL REFERENCES products(id) ON DELETE RESTRICT,
+  quantity INTEGER NOT NULL DEFAULT 1,
+  unit_price NUMERIC(12, 4) DEFAULT 0,
+  notes TEXT,
+  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Indexes
+CREATE INDEX IF NOT EXISTS idx_purchase_orders_customer_id ON purchase_orders(customer_id);
+CREATE INDEX IF NOT EXISTS idx_purchase_orders_status ON purchase_orders(status);
+CREATE INDEX IF NOT EXISTS idx_purchase_orders_po_number ON purchase_orders(po_number);
+CREATE INDEX IF NOT EXISTS idx_purchase_order_items_po_id ON purchase_order_items(purchase_order_id);
+CREATE INDEX IF NOT EXISTS idx_purchase_order_items_product_id ON purchase_order_items(product_id);
+CREATE INDEX IF NOT EXISTS idx_customers_code ON customers(code);