Merge pull request #27 from b2b-marketplace/feature/basket_model

Модель корзины

apps/baskets/admin.py

@@ -0,0 +1,17 @@
+from django.contrib import admin
+
+from apps.baskets.models import Basket, BasketProduct
+
+
+class BasketProductInline(admin.TabularInline):
+    model = BasketProduct
+    extra = 1
+
+
+@admin.register(Basket)
+class BasketAdmin(admin.ModelAdmin):
+    list_display = ("user",)
+    list_filter = ("user",)
+    search_fields = ("user",)
+    empty_value_display = "-empty-"
+    inlines = (BasketProductInline,)

apps/baskets/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class BasketsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "apps.baskets"

apps/baskets/migrations/0001_initial.py

@@ -0,0 +1,84 @@
+# Generated by Django 4.1 on 2023-08-11 19:26
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = [
+        ("products", "0001_initial"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Basket",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="user",
+                        to=settings.AUTH_USER_MODEL,
+                        verbose_name="User",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Basket",
+                "verbose_name_plural": "Baskets",
+            },
+        ),
+        migrations.CreateModel(
+            name="BasketProduct",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "quantity",
+                    models.PositiveIntegerField(verbose_name="Product quantity"),
+                ),
+                (
+                    "basket",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="basket",
+                        to="baskets.basket",
+                        verbose_name="Basket",
+                    ),
+                ),
+                (
+                    "product",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="product",
+                        to="products.product",
+                        verbose_name="Product",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Product in the basket",
+                "verbose_name_plural": "Products in the basket",
+            },
+        ),
+    ]

apps/baskets/migrations/0002_basket_basket_products_alter_basketproduct_basket.py

@@ -0,0 +1,31 @@
+# Generated by Django 4.1 on 2023-08-12 20:28
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("products", "0001_initial"),
+        ("baskets", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="basket",
+            name="basket_products",
+            field=models.ManyToManyField(
+                through="baskets.BasketProduct", to="products.product"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="basketproduct",
+            name="basket",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="basket",
+                to="baskets.basket",
+                verbose_name="Basket",
+            ),
+        ),
+    ]

apps/baskets/models.py

@@ -0,0 +1,36 @@
+from django.contrib.auth import get_user_model
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+from apps.products.models import Product
+
+
+class Basket(models.Model):
+    user = models.ForeignKey(
+        get_user_model(), on_delete=models.CASCADE, related_name="user", verbose_name=_("User")
+    )
+    basket_products = models.ManyToManyField(Product, through="BasketProduct")
+
+    class Meta:
+        verbose_name = _("Basket")
+        verbose_name_plural = _("Baskets")
+
+    def __str__(self):
+        return f"{self.user}"
+
+
+class BasketProduct(models.Model):
+    basket = models.ForeignKey(
+        Basket, on_delete=models.CASCADE, related_name="basket", verbose_name=_("Basket")
+    )
+    product = models.ForeignKey(
+        Product, on_delete=models.CASCADE, related_name="product", verbose_name=_("Product")
+    )
+    quantity = models.PositiveIntegerField(verbose_name=_("Product quantity"))
+
+    class Meta:
+        verbose_name = _("Product in the basket")
+        verbose_name_plural = _("Products in the basket")
+
+    def __str__(self):
+        return f"{self.quantity} x {self.product} in Basket for User: {self.basket.user}"

config/settings.py

@@ -39,6 +39,7 @@
     "apps.products",
     "apps.users",
     "apps.orders",
+    "apps.baskets",
 ]
 
 INSTALLED_APPS = DJANGO_APPS + THIRD_PARTY_APPS + LOCAL_APPS