Added inventory app with models, views, serializers, tests and custom_auth

.gitignore

@@ -109,6 +109,8 @@ venv/
 ENV/
 env.bak/
 venv.bak/
+/myenv
+myenv/
 
 # Spyder project settings
 .spyderproject

app/app/settings.py

@@ -11,7 +11,9 @@
 """
 
 from pathlib import Path
-
+from datetime import timedelta
+from decouple import config
+import os
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
@@ -20,13 +22,14 @@
 # See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = 'django-insecure-h-h69cr05lmc*w4vtkf+5qltg8#&#xf8fe(v9j9oxs-*-^#vjd'
+SECRET_KEY = os.getenv('SECRET_KEY','')
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
+DEBUG = os.getenv('DEBUG',True)
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = [ ]
 
+FRONTEND_URL ='http://localhost:8000'
 
 # Application definition
 
@@ -37,7 +40,12 @@
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    'core'
+    #...third party apps
+    'rest_framework',
+    'rest_framework_simplejwt',
+    # local apps
+    'core',
+    'inventory',
 ]
 
 MIDDLEWARE = [
@@ -75,9 +83,18 @@
 # https://docs.djangoproject.com/en/4.0/ref/settings/#databases
 
 DATABASES = {
+    # 'default': {
+    #     'ENGINE': 'django.db.backends.sqlite3',
+    #     'NAME': BASE_DIR / 'db.sqlite3',
+    # }
+
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': 'inventory_app',
+        'USER': os.getenv('POSTGRESUSER',''),
+        'PASSWORD': os.getenv('POSTGRESPASS',''),
+        'HOST': os.getenv('POSTGRESHOST',''),
+        'PORT': os.getenv('POSTGRESPORT','5432'),
     }
 }
 
@@ -123,4 +140,46 @@
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
 
-AUTH_USER_MODEL = 'core.User'
+AUTH_USER_MODEL = 'core.User'
+
+
+REST_FRAMEWORK = {
+    'DEFAULT_AUTHENTICATION_CLASSES': [
+        'rest_framework_simplejwt.authentication.JWTAuthentication',
+    ],
+
+    'DEFAULT_PERMISSION_CLASSES': [
+        'rest_framework.permissions.IsAuthenticated',
+    ],
+}
+
+AUTHENTICATION_BACKENDS = ['django.contrib.auth.backends.ModelBackend','inventory.custom_auth.EmailNameAuthBackend']
+
+
+SIMPLE_JWT = {
+    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=60),
+    "REFRESH_TOKEN_LIFETIME": timedelta(days=1),
+    "ROTATE_REFRESH_TOKENS": True,
+    "BLACKLIST_AFTER_ROTATION": True,
+    "UPDATE_LAST_LOGIN": False,
+    "ALGORITHM": "HS256",
+    # 'SIGNING_KEY': SECRET_KEY,
+    "VERIFYING_KEY": None,
+    "AUDIENCE": None,
+    "ISSUER": None,
+    "JWK_URL": None,
+    "LEEWAY": 0,
+    "AUTH_HEADER_TYPES": ("Bearer",),
+    "AUTH_HEADER_NAME": "HTTP_AUTHORIZATION",
+    "USER_ID_FIELD": "id",
+    "USER_ID_CLAIM": "user_id",
+    "USER_AUTHENTICATION_RULE": "rest_framework_simplejwt.authentication.default_user_authentication_rule",
+    "AUTH_TOKEN_CLASSES": ("rest_framework_simplejwt.tokens.AccessToken",),
+    "TOKEN_TYPE_CLAIM": "token_type",
+    "TOKEN_USER_CLASS": "rest_framework_simplejwt.models.TokenUser",
+    "JTI_CLAIM": "jti",
+    "SLIDING_TOKEN_REFRESH_EXP_CLAIM": "refresh_exp",
+    "SLIDING_TOKEN_LIFETIME": timedelta(minutes=60),
+    "SLIDING_TOKEN_REFRESH_LIFETIME": timedelta(days=1),
+}
+

app/app/urls.py

@@ -14,8 +14,11 @@
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import path,include
+from inventory.views import endpoints
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('',endpoints),
+    path('api/v1/',include('inventory.urls')),
 ]

app/core/admin.py

@@ -1,5 +1,6 @@
 """Manage admin page for main app."""
 
-# from django.contrib import admin
-
+from django.contrib import admin
+from .models import User
 # Register your models here.
+admin.site.register(User)

app/core/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.0.1 on 2022-02-19 10:18
+# Generated by Django 4.0.1 on 2024-07-21 08:49
 
 from django.db import migrations, models
 

app/core/models.py

@@ -25,7 +25,7 @@ def create_superuser(self, email, password):
         user = self.create_user(email, password)
         user.is_staff = True
         user.is_superuser = True
-
+        user.save()
         return user
 
 

app/inventory/admin.py

@@ -0,0 +1,9 @@
+from django.contrib import admin
+from .models import Category, Product,Order,OrderItem
+
+# Register your models here.
+
+admin.site.register(Category)
+admin.site.register(Product)
+admin.site.register(Order)
+admin.site.register(OrderItem)

app/inventory/apps.py

@@ -0,0 +1,8 @@
+from django.apps import AppConfig
+
+
+class InventoryConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'inventory'
+
+

app/inventory/custom_auth.py

@@ -0,0 +1,25 @@
+from django.contrib.auth.backends import ModelBackend
+
+from django.contrib.auth import get_user_model
+User = get_user_model()#get the user model used for the entire project
+
+
+'''
+This class is responsible for user login
+permiting them to use their names or email  to login
+'''
+class EmailNameAuthBackend(ModelBackend):
+    def authenticate(self,requst,email =None, password = None):
+        try:
+            user = User.objects.get(email=email)
+            success = user.check_password(password)
+            if success:
+                return user
+        except User.DoesNotExist:
+            try:
+                user = User.objects.get(name=email)
+                success = user.check_password(password)
+                if success:
+                    return user
+            except User.DoesNotExist:
+                    return None

app/inventory/migrations/0001_initial.py

@@ -0,0 +1,83 @@
+# Generated by Django 4.0.1 on 2024-07-19 11:17
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Category',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.SlugField(allow_unicode=True, editable=False, max_length=100)),
+                ('name', models.CharField(max_length=100)),
+                ('date_created', models.DateTimeField(auto_now_add=True)),
+            ],
+            options={
+                'verbose_name_plural': 'categories',
+                'db_table': 'inventory_category',
+            },
+        ),
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.SlugField(allow_unicode=True, editable=False, max_length=100)),
+                ('date_created', models.DateTimeField(auto_now_add=True)),
+            ],
+            options={
+                'verbose_name_plural': 'orders',
+                'db_table': 'inventory_order',
+            },
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.SlugField(allow_unicode=True, editable=False, max_length=100)),
+                ('name', models.CharField(max_length=100)),
+                ('description', models.TextField()),
+                ('price', models.DecimalField(decimal_places=2, max_digits=10)),
+                ('date_created', models.DateTimeField(auto_now_add=True)),
+                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='products', to='inventory.category')),
+            ],
+            options={
+                'verbose_name_plural': 'products',
+                'db_table': 'inventory_product',
+            },
+        ),
+        migrations.CreateModel(
+            name='OrderItem',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.SlugField(allow_unicode=True, editable=False, max_length=100)),
+                ('quantity', models.PositiveIntegerField()),
+                ('date_created', models.DateTimeField(auto_now_add=True)),
+                ('order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='order_items', to='inventory.order')),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='order_items', to='inventory.product')),
+            ],
+            options={
+                'verbose_name_plural': 'order_items',
+                'db_table': 'inventory_order_item',
+            },
+        ),
+        migrations.AddField(
+            model_name='order',
+            name='products',
+            field=models.ManyToManyField(through='inventory.OrderItem', to='inventory.Product'),
+        ),
+        migrations.AddField(
+            model_name='order',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

app/inventory/migrations/0002_alter_orderitem_quantity_alter_product_category_and_more.py

@@ -0,0 +1,39 @@
+# Generated by Django 4.0.1 on 2024-07-21 08:33
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('inventory', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='orderitem',
+            name='quantity',
+            field=models.PositiveIntegerField(default=1),
+        ),
+        migrations.AlterField(
+            model_name='product',
+            name='category',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='products', to='inventory.category'),
+        ),
+        migrations.AlterField(
+            model_name='product',
+            name='description',
+            field=models.TextField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name='product',
+            name='name',
+            field=models.CharField(blank=True, max_length=100, null=True),
+        ),
+        migrations.AlterField(
+            model_name='product',
+            name='price',
+            field=models.DecimalField(decimal_places=2, default=0.0, max_digits=10),
+        ),
+    ]