feat(api): implement endpoints to products, customer and sales.

tienda_ilusion/don_confiao/api_views.py

@@ -2,12 +2,12 @@ from rest_framework import viewsets
 from rest_framework.response import Response
 
 from .models import Sale, SaleLine, Customer, Product
-from .serializers import SaleSerializer
+from .serializers import SaleSerializer, SaleWithLinesSerializer, ProductSerializer, CustomerSerializer
 
 
-class SaleViewSet(viewsets.ModelViewSet):
+class SaleWithLinesViewSet(viewsets.ModelViewSet):
     queryset = Sale.objects.all()
-    serializer_class = SaleSerializer
+    serializer_class = SaleWithLinesSerializer
 
     def create(self, request):
         data = request.data
@@ -28,3 +28,18 @@ class SaleViewSet(viewsets.ModelViewSet):
             )
 
         return Response({'message': 'Venta creada con exito'}, status=201)
+
+
+class SaleView(viewsets.ModelViewSet):
+    queryset = Sale.objects.all()
+    serializer_class = SaleSerializer
+
+
+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

@@ -1,6 +1,6 @@
 from rest_framework import serializers
 
-from .models import Sale, SaleLine
+from .models import Sale, SaleLine, Product, Customer
 
 
 class SaleLineSerializer(serializers.ModelSerializer):
@@ -9,9 +9,31 @@ class SaleLineSerializer(serializers.ModelSerializer):
         fields = ['id', 'sale', 'product', 'unit_price', 'quantity']
 
 
-class SaleSerializer(serializers.ModelSerializer):
+class SaleWithLinesSerializer(serializers.ModelSerializer):
     lines = SaleLineSerializer(many=True)
 
     class Meta:
         model = Sale
         fields = ['id', 'customer', 'date', 'lines']
+
+
+class SaleSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Sale
+        fields = ['id', 'customer', 'date']
+
+    def to_representation(self, instance):
+        representation = super().to_representation(instance)
+        representation['lines'] = [line for line in instance.saleline_set.all().values()]
+        return representation
+
+
+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

@@ -29,4 +29,21 @@ class TestAPI(APITestCase):
         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)
+        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

@@ -1,9 +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"),
@@ -14,5 +22,6 @@ 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/sales/', api_views.SaleViewSet.as_view({'post': 'create'}), name='sale-create')
+    path('api/sales_with_lines/', api_views.SaleWithLinesViewSet.as_view({'post': 'create'}), name='sale-create'),
+    path('api/', include(router.urls)),
 ]