change order list serialzier class

core/apps/shared/admin/__init__.py

@@ -1 +1,2 @@
-from .region import *
+from .region import *
+from .usd_course import *

core/apps/shared/admin/usd_course.py

@@ -0,0 +1,23 @@
+from django.contrib import admin
+from django.http import HttpResponseRedirect
+from django.urls import reverse 
+
+from core.apps.shared.models import UsdCourse
+
+
+@admin.register(UsdCourse)
+class UsdCourseAdmin(admin.ModelAdmin):
+    def has_add_permission(self, request):
+        return not UsdCourse.objects.exists()
+    
+    def has_delete_permission(self, request, obj = ...):
+        return False
+
+    def changelist_view(self, request, extra_context=None):
+        config, created = UsdCourse.objects.get_or_create(
+            defaults=dict(
+                value=0
+            )
+        )
+        url = reverse("admin:shared_usdcourse_change", args=[config.id])
+        return HttpResponseRedirect(url)

core/apps/shared/migrations/0002_usdcourse.py

@@ -0,0 +1,27 @@
+# Generated by Django 5.2.4 on 2025-08-23 11:35
+
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('shared', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UsdCourse',
+            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.PositiveBigIntegerField()),
+            ],
+            options={
+                'verbose_name': 'dollar kursi',
+                'verbose_name_plural': 'dollar kursi',
+            },
+        ),
+    ]

core/apps/shared/models/__init__.py

@@ -1,2 +1,3 @@
 from .base import BaseModel
-from .region import *
+from .region import *
+from .usd_course import *

core/apps/shared/models/usd_course.py

@@ -0,0 +1,12 @@
+from django.db import models
+
+from core.apps.shared.models import BaseModel
+
+
+class UsdCourse(BaseModel):
+    value = models.PositiveBigIntegerField()
+
+    class Meta:
+        verbose_name = 'dollar kursi'
+        verbose_name_plural = 'dollar kursi'
+