requirements.txt

@@ -1 +1,2 @@
 Django==5.0.6
+djangorestframework

tienda_ilusion/don_confiao/api_views.py

@@ -0,0 +1,40 @@
+from rest_framework import viewsets
+from rest_framework.response import Response
+
+from .models import Sale, SaleLine, Customer, Product
+from .serializers import SaleSerializer, ProductSerializer, CustomerSerializer
+
+
+class SaleView(viewsets.ModelViewSet):
+    queryset = Sale.objects.all()
+    serializer_class = SaleSerializer
+
+    def create(self, request):
+        data = request.data
+        customer = Customer.objects.get(pk=data['customer'])
+        date = data['date']
+        lines = data['saleline_set']
+        sale = Sale.objects.create(customer=customer, date=date)
+
+        for line in lines:
+            product = Product.objects.get(pk=line['product'])
+            quantity = line['quantity']
+            unit_price = line['unit_price']
+            SaleLine.objects.create(
+                sale=sale,
+                product=product,
+                quantity=quantity,
+                unit_price=unit_price
+            )
+
+        return Response({'message': 'Venta creada con exito'}, status=201)
+
+
+class ProductView(viewsets.ModelViewSet):
+    queryset = Product.objects.all()
+    serializer_class = ProductSerializer
+
+
+class CustomerView(viewsets.ModelViewSet):
+    queryset = Customer.objects.all()
+    serializer_class = CustomerSerializer

tienda_ilusion/don_confiao/serializers.py

@@ -0,0 +1,26 @@
+from rest_framework import serializers
+
+from .models import Sale, SaleLine, Product, Customer
+
+
+class SaleLineSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = SaleLine
+        fields = ['id', 'sale', 'product', 'unit_price', 'quantity']
+
+
+class SaleSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Sale
+        fields = ['id', 'customer', 'date', 'saleline_set']
+
+
+class ProductSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Product
+        fields = ['name', 'price', 'measuring_unit', 'categories']
+
+class CustomerSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Customer
+        fields = ['name', 'address']

tienda_ilusion/don_confiao/tests/test_api.py

@@ -0,0 +1,49 @@
+import json
+from django.urls import reverse
+from rest_framework import status
+from rest_framework.test import APITestCase
+from ..models import Sale, Product, Customer
+
+
+class TestAPI(APITestCase):
+    def setUp(self):
+        self.product = Product.objects.create(
+            name='Panela',
+            price=5000,
+            measuring_unit='UNIT'
+        )
+        self.customer = Customer.objects.create(
+            name='Camilo'
+        )
+
+    def test_create_sale(self):
+        url = '/don_confiao/api/sales/'
+        data = {
+            'customer': self.customer.id,
+            'date': '2024-09-02',
+            'saleline_set': [
+                {'product': self.product.id, 'quantity': 2, 'unit_price': 3000},
+                {'product': self.product.id, 'quantity': 3, 'unit_price': 5000}
+            ],
+        }
+        response = self.client.post(url, data, format='json')
+        self.assertEqual(response.status_code, status.HTTP_201_CREATED)
+        self.assertEqual(Sale.objects.count(), 1)
+        self.assertEqual(
+            Sale.objects.all()[0].customer.name,
+            self.customer.name
+        )
+
+    def test_get_products(self):
+        url = '/don_confiao/api/products/'
+        response = self.client.get(url)
+        json_response = json.loads(response.content.decode('utf-8'))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(self.product.name, json_response[0]['name'])
+
+    def test_get_customers(self):
+        url = '/don_confiao/api/customers/'
+        response = self.client.get(url)
+        json_response = json.loads(response.content.decode('utf-8'))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(self.customer.name, json_response[0]['name'])

tienda_ilusion/don_confiao/urls.py

@@ -1,8 +1,17 @@
-from django.urls import path
+from django.urls import path, include
+from rest_framework.routers import DefaultRouter
 
 from . import views
+from . import api_views
 
 app_name = 'don_confiao'
+
+router = DefaultRouter()
+router.register(r'sales', api_views.SaleView, basename='sale')
+router.register(r'customers', api_views.CustomerView, basename='customer')
+router.register(r'products', api_views.ProductView, basename='product')
+
+
 urlpatterns = [
     path("", views.index, name="wellcome"),
     path("comprar", views.buy, name="buy"),
@@ -16,4 +25,5 @@ urlpatterns = [
     path("cuadrar_tarro", views.reconciliate_jar, name="reconciliate_jar"),
     path("cuadres", views.reconciliate_jar, name="reconciliations"),
     path("resumen_compra/<int:id>", views.purchase_summary, name="purchase_summary"),
+    path('api/', include(router.urls)),
 ]

tienda_ilusion/tienda_ilusion/settings.py

@@ -38,6 +38,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'rest_framework',
     # 'don_confiao'
 ]