add new fields to rancher

apps/pos_device/migrations/0061_posfreeproducts.py

@@ -0,0 +1,39 @@
+# Generated by Django 5.0 on 2025-08-18 11:13
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0035_bankaccountinformation_account_and_more'),
+        ('pos_device', '0060_alter_sessions_latitude_alter_sessions_longitude_and_more'),
+        ('product', '0069_quota_group'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='POSFreeProducts',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('create_date', models.DateTimeField(auto_now_add=True)),
+                ('modify_date', models.DateTimeField(auto_now=True)),
+                ('creator_info', models.CharField(max_length=100, null=True)),
+                ('modifier_info', models.CharField(max_length=100, null=True)),
+                ('trash', models.BooleanField(default=False)),
+                ('balance', models.PositiveIntegerField(default=0)),
+                ('price', models.PositiveIntegerField(default=0)),
+                ('created_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='%(class)s_createddby', to=settings.AUTH_USER_MODEL)),
+                ('device', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='free_products', to='pos_device.device')),
+                ('modified_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='%(class)s_modifiedby', to=settings.AUTH_USER_MODEL)),
+                ('organization', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='free_products', to='authentication.organization')),
+                ('product', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='pos_free_products', to='product.product')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]

apps/pos_device/mixins/pos_device_mixin.py

@@ -0,0 +1,34 @@
+import typing
+from apps.pos_device import models as pos_models
+
+
+class POSDeviceMixin:
+    """ get require objects with values in request header """
+
+    def get_pos_device(self):
+        """ get device object by device serial in request header """
+
+        device = pos_models.Device.objects.get(
+            serial=self.request.headers.get('device-serial')  # noqa
+        )
+
+        return device
+
+    def get_device_organization(self):
+        """ get device owner (organization) information """
+
+        organization = pos_models.DeviceAssignment.objects.filter(
+            device__serial=self.request.headers.get('device-serial')  # noqa
+        ).first().organization
+
+        return organization
+
+    def get_provider_organization(self):
+        """ get pos provider organization """
+
+        provider = pos_models.Organization.objects.get(
+            en_name=self.request.headers.get('device-provider')  # noqa
+        )
+
+        return provider
+

apps/pos_device/models.py

@@ -1,8 +1,8 @@
-import datetime
 import random
 import string
 
 from apps.authentication.models import Organization
+from apps.product.models import Product
 from django.contrib.postgres.fields import ArrayField
 from apps.authorization.models import UserRelations
 from apps.core.models import BaseModel
@@ -55,7 +55,7 @@ class Device(BaseModel):
 
     def generate_device_identity(self):  # noqa
         """ generate identity for every device """
-        prefix = "POS"
+        # prefix = "POS"
         while True:
             number_part = ''.join(random.choices(string.digits, k=9))
             code = f"{number_part}"
@@ -264,3 +264,32 @@ class StakeHolders(BaseModel):
 
     def save(self, *args, **kwargs):
         return super(StakeHolders, self).save(*args, **kwargs)
+
+
+class POSFreeProducts(BaseModel):
+    product = models.ForeignKey(
+        Product,
+        on_delete=models.CASCADE,
+        related_name='pos_free_products',
+        null=True
+    )
+    organization = models.ForeignKey(
+        Organization,
+        on_delete=models.CASCADE,
+        related_name='free_products',
+        null=True
+    )
+    device = models.ForeignKey(
+        Device,
+        on_delete=models.CASCADE,
+        related_name='free_products',
+        null=True
+    )
+    balance = models.PositiveIntegerField(default=0)
+    price = models.PositiveIntegerField(default=0)
+
+    def __str__(self):
+        return f'{self.product.name}-{self.organization.name}'
+
+    def save(self, *args, **kwargs):
+        return super(POSFreeProducts, self).save(*args, **kwargs)

apps/pos_device/pos/api/v1/viewsets/device.py

@@ -68,6 +68,7 @@ class POSDeviceViewSet(viewsets.ModelViewSet):
                     "device_identity": device.device_identity,
                     "serial": device.serial
                 }, status=status.HTTP_200_OK)
+
             return Response({
                 "message": "device pre registered - unauthorized",
                 "device_identity": device.device_identity,