add orders app and add new model on products

config/settings/base.py

@@ -26,6 +26,7 @@ APPS = [
     'core.apps.wherehouse',
     'core.apps.products',
     'core.apps.projects',
+    'core.apps.orders',
 ]
 
 PACKAGES = [

config/urls.py

@@ -19,6 +19,7 @@ urlpatterns = [
             path('wherehouses/', include('core.apps.wherehouse.urls')),
             path('projects/', include('core.apps.projects.urls')),
             path('products/', include('core.apps.products.urls')),
+            path('orders/', include('core.apps.orders.urls')),
         ]
     )),
 

core/apps/orders/admin/__init__.py

@@ -0,0 +1 @@
+from .order import *

core/apps/orders/admin/order.py

@@ -0,0 +1,14 @@
+from django.contrib import admin 
+
+from core.apps.orders.models import Order, OrderApplication
+
+
+@admin.register(Order)
+class OrderAdmin(admin.ModelAdmin):
+    list_display = ['quantity', 'product', 'unity', 'project', 'wherehouse']
+    list_display = ['unity', 'project', 'wherehouse']
+
+
+@admin.register(OrderApplication)
+class OrderApplicationAdmin(admin.ModelAdmin):
+    list_display = ['employee', 'status']

core/apps/orders/apps.py

@@ -0,0 +1,10 @@
+from django.apps import AppConfig
+
+
+class OrdersConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'core.apps.orders'
+
+    def ready(self):
+        from . import admin 
+        

core/apps/orders/migrations/0001_initial.py

@@ -0,0 +1,55 @@
+# Generated by Django 5.2.4 on 2025-08-01 16:05
+
+import django.db.models.deletion
+import uuid
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('products', '0003_unity'),
+        ('projects', '0001_initial'),
+        ('wherehouse', '0002_stockmovemend'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('date', models.DateField()),
+                ('quantity', models.PositiveBigIntegerField(default=1)),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to='products.product')),
+                ('project', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to='projects.project')),
+                ('project_department', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.DO_NOTHING, to='projects.projectdepartment')),
+                ('unity', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to='products.unity')),
+                ('wherehouse', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to='wherehouse.wherehouse')),
+            ],
+            options={
+                'verbose_name': 'Buyurtma',
+                'verbose_name_plural': 'Buyurtmalar',
+            },
+        ),
+        migrations.CreateModel(
+            name='OrderApplication',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('status', models.CharField(choices=[('NEW', 'yangi'), ('CANCELLED', 'bekor qilindi'), ('ACCEPTED', 'qabul qilindi')], max_length=20)),
+                ('employee', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='applications', to=settings.AUTH_USER_MODEL)),
+                ('orders', models.ManyToManyField(related_name='applications', to='orders.order')),
+            ],
+            options={
+                'verbose_name': 'Ariza',
+                'verbose_name_plural': 'Arizalar',
+            },
+        ),
+    ]

core/apps/orders/models/__init__.py

@@ -0,0 +1 @@
+from .order import *

core/apps/orders/models/order.py

@@ -0,0 +1,54 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+from core.apps.shared.models import BaseModel
+from core.apps.products.models import Product, Unity
+from core.apps.projects.models import Project, ProjectDepartment
+from core.apps.accounts.models import User
+from core.apps.wherehouse.models import WhereHouse
+
+
+class Order(BaseModel):
+    product = models.ForeignKey(
+        Product, on_delete=models.CASCADE, related_name='orders'
+    )
+    unity = models.ForeignKey(
+        Unity, on_delete=models.CASCADE, related_name='orders'
+    )
+    project = models.ForeignKey(
+        Project, on_delete=models.CASCADE, related_name='orders'
+    )
+    project_department = models.ForeignKey(
+        ProjectDepartment, on_delete=models.DO_NOTHING, null=True, blank=True
+    )
+    wherehouse = models.ForeignKey(
+        WhereHouse, on_delete=models.CASCADE, related_name='orders'
+    )
+    date = models.DateField()
+    quantity = models.PositiveBigIntegerField(default=1)
+    
+    def __str__(self):
+        return f"{self.product} {self.unity} quantity order"
+    
+    class Meta:
+        verbose_name = _("Buyurtma")
+        verbose_name_plural = _("Buyurtmalar")
+
+
+class OrderApplication(BaseModel):
+    STATUS = (
+        ('NEW', 'yangi'),
+        ('CANCELLED', "bekor qilindi"),
+        ('ACCEPTED', 'qabul qilindi'),
+    )
+
+    orders = models.ManyToManyField(Order, related_name="applications")
+    employee = models.ForeignKey(User, on_delete=models.CASCADE, related_name='applications')
+    status = models.CharField(max_length=20, choices=STATUS)
+
+    def __str__(self):
+        return f"{self.employee} application"
+    
+    class Meta:
+        verbose_name = _("Ariza")
+        verbose_name_plural = _("Arizalar")

core/apps/orders/serializers/order.py

@@ -0,0 +1,75 @@
+from django.db import transaction
+
+from rest_framework import serializers
+
+from core.apps.orders.models import Order, OrderApplication
+from core.apps.products.models import Product, Unity
+from core.apps.wherehouse.models import WhereHouse
+from core.apps.projects.models import Project, ProjectDepartment
+
+
+class OrderCreateSerializer(serializers.Serializer):
+    product_id = serializers.UUIDField()
+    unity_id = serializers.UUIDField()
+    quantity = serializers.IntegerField()
+    wherehouse_id = serializers.UUIDField()
+    project_id = serializers.UUIDField()
+    project_department_id = serializers.UUIDField(required=False)
+    date = serializers.DateField()
+
+    def validate(self, data):
+        try:
+            product = Product.objects.get(id=data['product_id'])
+            unity = Unity.objects.get(id=data['unity_id'])
+            wherehouse = WhereHouse.objects.get(id=data['wherehouse_id'])
+            project = Project.objects.get(id=data['project_id'])
+            if data.get('project_department_id'):
+                project_department = ProjectDepartment.objects.get(
+                    id=data['project_department_id']
+                )
+        except Product.DoesNotExist:
+            raise serializers.ValidationError("Product not found")
+        except Unity.DoesNotExist:
+            raise serializers.ValidationError("Unity not found")
+        except WhereHouse.DoesNotExist:
+            raise serializers.ValidationError("Where House not found")
+        except Project.DoesNotExist:
+            raise serializers.ValidationError("Project not found")
+        try:
+            if data.get('project_department_id'):
+                data['project_department'] = ProjectDepartment.objects.get(id=data['project_department_id'])
+        except ProjectDepartment.DoesNotExist:
+            raise serializers.ValidationError("Project Department not found")
+        
+        data['product'] = product
+        data['unity'] = unity
+        data['wherehouse'] = wherehouse
+        data['project'] = project
+        return data
+    
+
+class OrderApplicationCreateSerializer(serializers.Serializer):
+    orders = serializers.ListSerializer(child=OrderCreateSerializer())
+
+    def create(self, validated_data):
+        employee = self.context.get('user')
+        orders_data = validated_data.pop('orders')
+        application = OrderApplication.objects.create(
+            employee=employee, status="NEW"
+        )
+
+        order_objs = []
+        for order_data in orders_data:
+            order_objs.append(Order(
+                product=order_data['product'],
+                unity=order_data['unity'],
+                quantity=order_data['quantity'],
+                wherehouse=order_data['wherehouse'],
+                project=order_data['project'],
+                project_department=order_data.get('project_department'),
+                date=order_data['date']
+            ))
+
+        created_orders = Order.objects.bulk_create(order_objs)
+        application.orders.add(*created_orders)
+        return application

core/apps/orders/urls.py

@@ -0,0 +1,11 @@
+from django.urls import path, include
+
+from core.apps.orders.views import order as order_views
+
+urlpatterns = [
+    path('order_application/', include(
+        [
+            path('create/', order_views.OrderApplicationCreateApiView.as_view()),
+        ]
+    )),
+]

core/apps/orders/views/order.py

@@ -0,0 +1,18 @@
+from rest_framework import generics, response
+from rest_framework.response import Response
+
+from core.apps.orders.models import Order, OrderApplication
+from core.apps.orders.serializers import order as serializers
+from core.apps.accounts.permissions.permissions import HasRolePermission
+
+
+class OrderApplicationCreateApiView(generics.CreateAPIView):
+    serializer_class = serializers.OrderApplicationCreateSerializer
+    queryset = OrderApplication.objects.all()
+    permission_classes = [HasRolePermission]
+    required_permissions = []
+
+    def get_serializer_context(self):
+        context = super().get_serializer_context()
+        context['user'] = self.request.user
+        return context

core/apps/products/admin/__init__.py

@@ -1 +1,2 @@
 from .product import *
+from .unity import *

core/apps/products/admin/unity.py

@@ -0,0 +1,9 @@
+from django.contrib import admin 
+
+from core.apps.products.models.unity import Unity
+
+
+@admin.register(Unity)
+class UnityAdmin(admin.ModelAdmin):
+    list_display = ['value']
+    search_fields = ['value']

core/apps/products/migrations/0003_unity.py

@@ -0,0 +1,27 @@
+# Generated by Django 5.2.4 on 2025-08-01 16:05
+
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0002_alter_product_options'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Unity',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('value', models.CharField(max_length=50)),
+            ],
+            options={
+                'verbose_name': 'Birlik',
+                'verbose_name_plural': 'Birliklar',
+            },
+        ),
+    ]

core/apps/products/models/__init__.py

@@ -1 +1,2 @@
 from .product import *
+from .unity import *

core/apps/products/models/unity.py

@@ -0,0 +1,15 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+from core.apps.shared.models import BaseModel
+
+
+class Unity(BaseModel):
+    value = models.CharField(max_length=50)
+
+    def __str__(self):
+        return self.value
+    
+    class Meta:
+        verbose_name = _('Birlik')
+        verbose_name_plural = _("Birliklar")

core/apps/products/serializers/unity.py

@@ -0,0 +1,9 @@
+from rest_framework import serializers
+
+from core.apps.products.models import Unity
+
+
+class UnityListSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Unity
+        fields = ['id', 'value']

core/apps/products/urls.py

@@ -1,11 +1,18 @@
 from django.urls import path, include
 
 from core.apps.products.views import product as product_views
+from core.apps.products.views import unity as unity_views
+
 
 urlpatterns = [
     path('product/', include(
         [
             path('list/', product_views.ProductListApiView.as_view()),
         ]
-    ))
+    )),
+    path('unity/', include(
+        [
+            path('list/', unity_views.UnityListApiView.as_view()),
+        ]
+    )),
 ]

core/apps/products/views/unity.py

@@ -0,0 +1,13 @@
+from rest_framework import generics, status
+from rest_framework.response import Response
+
+from core.apps.products.models import Unity
+from core.apps.products.serializers import unity as serializers
+from core.apps.accounts.permissions.permissions import HasRolePermission
+
+
+class UnityListApiView(generics.ListAPIView):
+    serializer_class = serializers.UnityListSerializer
+    queryset = Unity.objects.all()
+    permission_classes = [HasRolePermission]
+    required_permissions = []