add new model and change offer models

config/settings/base.py

@@ -29,6 +29,7 @@ APPS = [
     'core.apps.projects',
     'core.apps.orders',
     'core.apps.finance',
+    'core.apps.counterparty',
 ]
 
 PACKAGES = [

config/urls.py

@@ -34,6 +34,7 @@ urlpatterns = [
             path('products/', include('core.apps.products.urls')),
             path('orders/', include('core.apps.orders.urls')),
             path('finance/', include('core.apps.finance.urls')),
+            path('counterparties/', include('core.apps.counterparty.urls')),
         ]
     )),
 

core/apps/counterparty/admin/__init__.py

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

core/apps/counterparty/admin/counterparty.py

@@ -0,0 +1,9 @@
+from django.contrib import admin 
+
+from core.apps.counterparty.models import Counterparty
+
+
+@admin.register(Counterparty)
+class CounterpartyAdmin(admin.ModelAdmin):
+    list_display = ['id', 'name', 'person']
+    

core/apps/counterparty/apps.py

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

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

@@ -0,0 +1,36 @@
+# Generated by Django 5.2.4 on 2025-08-20 13:13
+
+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 = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Counterparty',
+            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)),
+                ('name', models.CharField(max_length=200)),
+                ('description', models.TextField(blank=True, null=True)),
+                ('start_date', models.DateField()),
+                ('status', models.CharField(choices=[('active', 'active'), ('inactive', 'inactive')], default='active', max_length=20)),
+                ('type', models.CharField(choices=[('supplier', 'supplier')], max_length=20)),
+                ('person', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='counterparties', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'verbose_name': 'Kontragent',
+                'verbose_name_plural': 'Kontragentlar',
+            },
+        ),
+    ]

core/apps/counterparty/models/__init__.py

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

core/apps/counterparty/models/conterparty.py

@@ -0,0 +1,22 @@
+from django.db import models
+
+from core.apps.shared.models import BaseModel
+from core.apps.accounts.models import User
+
+
+class Counterparty(BaseModel):
+    name = models.CharField(max_length=200)
+    description = models.TextField(null=True, blank=True)
+    start_date = models.DateField()
+    status = models.CharField(
+        max_length=20, choices=[('active', 'active'), ('inactive', 'inactive')], default='active'
+    )
+    type = models.CharField(max_length=20, choices=[('supplier', 'supplier')])
+    person = models.ForeignKey(User, on_delete=models.CASCADE, related_name='counterparties')
+
+    def __str__(self):
+        return self.name
+    
+    class Meta:
+        verbose_name = 'Kontragent'
+        verbose_name_plural = 'Kontragentlar'

core/apps/counterparty/serializers/counterparty.py

@@ -0,0 +1,14 @@
+from rest_framework import serializers
+
+from core.apps.accounts.serializers.user import UserListSerializer
+from core.apps.counterparty.models import Counterparty
+
+
+class CounterpartySerializer(serializers.ModelSerializer):
+    person = UserListSerializer()
+    
+    class Meta:
+        model = Counterparty
+        fields = [
+            'id', 'name', 'type', 'status', 'description', 'start_date', 'person'
+        ]

core/apps/counterparty/urls.py

@@ -0,0 +1,12 @@
+from django.urls import path, include
+
+from core.apps.counterparty.views import counterparty as cp_views
+
+
+urlpatterns = [
+    path('counterparty/', include(
+        [
+            path('list/', cp_views.CounterpartyListApiView.as_view()),
+        ]
+    ))    
+]

core/apps/counterparty/views/counterparty.py

@@ -0,0 +1,17 @@
+from rest_framework import generics, views
+from rest_framework.response import Response
+
+from core.apps.accounts.permissions.permissions import HasRolePermission
+from core.apps.shared.paginations.custom import CustomPageNumberPagination
+from core.apps.counterparty.models import Counterparty
+from core.apps.counterparty.serializers import counterparty as serializers
+
+
+class CounterpartyListApiView(generics.ListAPIView):
+    serializer_class = serializers.CounterpartySerializer
+    queryset = Counterparty.objects.select_related('person')
+    pagination_class = [HasRolePermission]
+    required_permissions = []
+    pagination_class = CustomPageNumberPagination
+
+

core/apps/orders/admin/offer.py

@@ -5,6 +5,6 @@ from core.apps.orders.models import Offer
 
 @admin.register(Offer)
 class OfferAdmin(admin.ModelAdmin):
-    list_display = ['id', 'name', 'number', 'order']
-    search_fields = ['name', 'phone', 'number', 'price']
+    list_display = ['id', 'number', 'order']
+    search_fields = ['phone', 'number', 'price']
 

core/apps/orders/migrations/0008_remove_offer_name_offer_counterparty.py

@@ -0,0 +1,24 @@
+# Generated by Django 5.2.4 on 2025-08-20 13:16
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('counterparty', '0001_initial'),
+        ('orders', '0007_alter_order_project_folder'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='offer',
+            name='name',
+        ),
+        migrations.AddField(
+            model_name='offer',
+            name='counterparty',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='offers', to='counterparty.counterparty'),
+        ),
+    ]

core/apps/orders/models/order_offer.py

@@ -2,6 +2,7 @@ from django.db import models
 
 from core.apps.shared.models import BaseModel
 from core.apps.orders.models import Order
+from core.apps.counterparty.models import Counterparty
 
 
 class Offer(BaseModel):
@@ -11,7 +12,7 @@ class Offer(BaseModel):
     )
     
     order = models.ForeignKey(Order, on_delete=models.CASCADE, related_name='offers')
-    name = models.CharField(max_length=200)
+    counterparty = models.ForeignKey(Counterparty, on_delete=models.CASCADE, related_name='offers', null=True)
     price = models.PositiveBigIntegerField()
     price_type = models.CharField(choices=PRICE_TYPE, default='uzs')
     phone = models.CharField(max_length=15, null=True, blank=True)

core/apps/orders/serializers/offer.py

@@ -3,16 +3,24 @@ from django.db import transaction
 from rest_framework import serializers
 
 from core.apps.orders.models import Offer, Order
+from core.apps.counterparty.models import Counterparty
 
 
 class OfferCreateSerializer(serializers.Serializer):
-    name = serializers.CharField()
+    counterparty_id = serializers.UUIDField()
     price = serializers.IntegerField()
     phone = serializers.CharField(required=False)
     comment = serializers.CharField(required=False)
     qqs = serializers.CharField(required=False)
     price_type = serializers.ChoiceField(Offer.PRICE_TYPE)
 
+    def validate(self, data):
+        counterparty = Counterparty.objects.filter(id=data['counterparty_id']).first()
+        if not counterparty:
+            raise serializers.ValidationError("Counterparty not found")
+        data['counterparty']
+        return data
+
 
 class MultipleOfferCreateSerializer(serializers.Serializer):
     order_id = serializers.UUIDField()
@@ -31,7 +39,7 @@ class MultipleOfferCreateSerializer(serializers.Serializer):
             for offer in validated_data.pop('offers'):
                 offer.append(
                     Offer(
-                        name=offer['name'],
+                        counterparty=offer['counterparty'],
                         price=offer['price'],
                         phone=offer.get('phone'),
                         comment=offer.get('comment'),
@@ -44,22 +52,30 @@ class MultipleOfferCreateSerializer(serializers.Serializer):
 
 
 class OfferListSerializer(serializers.ModelSerializer):
+    counterparty = serializers.SerializerMethodField(method_name='get_counterparty')
+
     class Meta:
         model = Offer
         fields = [
-            'id', 'name', 'price', 'number', 'phone', 'comment', 'qqs', 'price_type'
+            'id', 'counterparty', 'price', 'number', 'phone', 'comment', 'qqs', 'price_type'
         ]
 
+    def get_counterparty(self, obj):
+        return {
+            'id': obj.counterparty.id,
+            'name': obj.counterparty.name
+        }
+
 
 class OfferUpdateSerializer(serializers.ModelSerializer):
     class Meta:
         model = Offer
         fields = [
-            'name', 'price', 'number', 'phone', 'comment', 'qqs', 'price_type'
+            'counterparty', 'price', 'number', 'phone', 'comment', 'qqs', 'price_type'
         ]
     
     def update(self, instance, validated_data):
-        instance.name = validated_data.get('name', instance.name)
+        instance.counterparty = validated_data.get('counterparty', instance.counterparty)
         instance.price = validated_data.get('price', instance.price)
         instance.number = validated_data.get('number', instance.number)
         instance.phone = validated_data.get('phone', instance.phone)