Improve dummy baskets generation

src/purchase/fixtures/payment_methods.yaml

@@ -0,0 +1,15 @@
+- model: purchase.paymentmethod
+  fields:
+    created_at: 2022-04-26 20:30:22.960932+00:00
+    updated_at: 2022-04-26 20:30:22.960941+00:00
+    name: Espèces
+- model: purchase.paymentmethod
+  fields:
+    created_at: 2022-04-26 20:30:22.960948+00:00
+    updated_at: 2022-04-26 20:30:22.960952+00:00
+    name: CB
+- model: purchase.paymentmethod
+  fields:
+    created_at: 2022-04-26 20:30:22.960958+00:00
+    updated_at: 2022-04-26 20:30:22.960962+00:00
+    name: Chèque

src/purchase/fixtures/products.yaml

@@ -0,0 +1,32 @@
+- model: purchase.product
+  fields:
+    created_at: 2022-04-26 20:30:22.959558+00:00
+    updated_at: 2022-04-26 20:30:22.959576+00:00
+    name: Clou
+    image: ''
+    unit_price_cents: 134
+    display_order: 1
+- model: purchase.product
+  fields:
+    created_at: 2022-04-26 20:30:22.959595+00:00
+    updated_at: 2022-04-26 20:30:22.959600+00:00
+    name: Villard'Ain
+    image: ''
+    unit_price_cents: 290
+    display_order: 1
+- model: purchase.product
+  fields:
+    created_at: 2022-04-26 20:30:22.959610+00:00
+    updated_at: 2022-04-26 20:30:22.959614+00:00
+    name: Herbier
+    image: ''
+    unit_price_cents: 330
+    display_order: 1
+- model: purchase.product
+  fields:
+    created_at: 2022-04-26 20:30:22.959624+00:00
+    updated_at: 2022-04-26 20:30:22.959628+00:00
+    name: Blanc vache
+    image: ''
+    unit_price_cents: 650
+    display_order: 1

src/purchase/management/commands/generate_dummy_baskets.py

@@ -2,6 +2,7 @@ import random
 from datetime import timedelta
 
 import freezegun
+from django.core.management import call_command
 from django.core.management.base import BaseCommand
 from django.utils.timezone import now
 
@@ -9,31 +10,12 @@ from purchase.models import Basket, BasketItem, PaymentMethod, Product
 
 
 class Command(BaseCommand):
-    help = "Generates dummy data"  # noqa: A003
+    help = "Generates dummy baskets"  # noqa: A003
 
     def handle(self, *args, **options):
-        products = [
+        call_command("loaddata", ["payment_methods", "products"])
-            Product(name="Clou", unit_price_cents=134),
+        products = list(Product.objects.all())
-            Product(name="Villard'Ain", unit_price_cents=290),
+        payment_methods = list(PaymentMethod.objects.all())
-            Product(name="Herbier", unit_price_cents=330),
-            Product(name="Blanc vache", unit_price_cents=650),
-        ]
-        products = Product.objects.bulk_create(products)
-        self.stdout.write(
-            self.style.SUCCESS(f"Successfully created {len(products)} products.")
-        )
-
-        payment_methods = [
-            PaymentMethod(name="Espèces"),
-            PaymentMethod(name="CB"),
-            PaymentMethod(name="Chèque"),
-        ]
-        payment_methods = PaymentMethod.objects.bulk_create(payment_methods)
-        self.stdout.write(
-            self.style.SUCCESS(
-                f"Successfully created {len(payment_methods)} payment methods."
-            )
-        )
 
         count = 0
         hours = list(range(-29, -20))

src/purchase/models.py

@@ -33,10 +33,15 @@ class PaymentMethodQuerySet(models.QuerySet):
         return self.annotate(sold=Count("baskets", distinct=True))
 
 
+class PaymentMethodManager(models.Manager):
+    def get_by_natural_key(self, name):
+        return self.get(name=name)
+
+
 class PaymentMethod(Model):
     name = models.CharField(max_length=50, unique=True, verbose_name=_("name"))
 
-    objects = PaymentMethodQuerySet.as_manager()
+    objects = PaymentMethodManager.from_queryset(PaymentMethodQuerySet)
 
     class Meta:
         verbose_name = _("payment method")
@@ -45,6 +50,10 @@ class PaymentMethod(Model):
     def __str__(self):
         return self.name
 
+    @property
+    def natural_key(self):
+        return (self.name,)
+
 
 def default_product_display_order():
     last = Product.objects.last()
@@ -65,6 +74,11 @@ class ProductQuerySet(models.QuerySet):
         return self.annotate(sold=Coalesce(Sum("basket_items__quantity"), 0))
 
 
+class ProductManager(models.Manager):
+    def get_by_natural_key(self, name):
+        return self.get(name=name)
+
+
 class Product(Model):
     name = models.CharField(max_length=250, unique=True, verbose_name=_("name"))
     image = models.ImageField(null=True, blank=True, verbose_name=_("image"))
@@ -75,7 +89,7 @@ class Product(Model):
         default=default_product_display_order, verbose_name=_("display order")
     )
 
-    objects = ProductQuerySet.as_manager()
+    objects = ProductManager.from_queryset(ProductQuerySet)
 
     class Meta:
         ordering = ["display_order", "name"]
@@ -85,6 +99,10 @@ class Product(Model):
     def __str__(self):
         return self.name
 
+    @property
+    def natural_key(self):
+        return (self.name,)
+
     def save(self, *args, **kwargs):
         super().save()
         if not self.image: