Commit inicial - Sistema de Gestion Hotelera Hacienda San Angel

- Backend Node.js/Express con PostgreSQL
- Frontend React 19 con Vite
- Docker Compose para orquestacion
- Documentacion completa en README.md
- Scripts SQL para base de datos
- Configuracion de ejemplo (.env.example)

backend/hotel_hacienda/src/controllers/purchase.controller.js

@@ -0,0 +1,51 @@
+const pool = require('../db/connection');
+
+
+const getpurchases = async (req, res) => 
+{   
+    try{
+    const result = await pool.query('SELECT * From getpurchases()');
+     const purchases = result.rows.map(re => ({
+        id_purchase_dt: re.id_purchase_dt, 
+        id_expense :re.id_expense  , 
+        id_product :re.id_product ,
+        product_name: re.product_name,
+        quantity: re.quantity ,
+        delivered: re.delivered ,
+        id_tax :re.id_tax ,
+        total : re.total
+        
+    }));
+
+    res.json({
+        message: "Se obtuvieron todos los Purchases details",
+        data:purchases
+    });
+
+    }catch(error)
+    {
+    console.error(error);
+    res.status(500).json({ message: 'Error al obtener los purchases details.',error });   
+    }
+};
+const purchaseid = async (req, res) => 
+{   
+    try{
+    const {id} = req.params;
+    const {checking} = req.body;
+
+    console.log(id,checking);
+    const result = await pool.query('SELECT * FROM purchaseentry($1,$2) as status',[id,checking]);;
+    const newentry = result.rows[0].status;
+    res.json({
+        message: 'Se obtuvo el Purchases details', newentry
+        
+    });
+    }catch(error)
+    {
+    console.error(error);
+    res.status(500).json({ message: 'Error al obtener el Purchases details',error });   
+    }
+};
+
+module.exports = {getpurchases,purchaseid};