order app update

backend/core/settings.py

@@ -108,6 +108,7 @@ INSTALLED_APPS = [
     'account',
     'ticket',
     'chat',
+    'order',
 ]
 
 MIDDLEWARE = [

backend/order/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

backend/order/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class OrderConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'order'

backend/order/models.py

@@ -0,0 +1,86 @@
+from django.db import models
+from account.models import User, UserAddressModel
+from product.models import ProductModel
+from django.utils import timezone
+
+class OrderModel(models.Model):
+    STATUS_CHOICES = [
+        ('CART', 'در سبد خرید'),
+        ('ADMIN_PENDING', 'در انتظار تایید'),
+        ('PENDING', 'درحال پردازش'),
+        ('POSTED', 'ارسال شده'),
+        ('RECEIVED', 'تحویل شده'),
+        ('CANCELED', 'لغو شده'),
+        ('BACK', 'مرجوع شده'),
+    ]
+    user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, related_name='orders')
+    address = models.ForeignKey(UserAddressModel, on_delete=models.SET_NULL, related_name='orders', null=True)
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name="تاریخ سفارش")    
+    is_paid = models.BooleanField(default=False, verbose_name="وضعیت پرداخت")
+    discount_code = models.ForeignKey(DiscountCode, on_delete=models.PROTECT, null=True, blank=True, verbose_name="کدتخفیف")
+    status = models.CharField(max_length=20, choices=STATUS_CHOICES, verbose_name="وضعیت سفارش")
+    def __str__(self):
+        return f'سفارش: {self.id}'
+
+    class Meta:
+        verbose_name = 'سفارش'
+        verbose_name_plural = 'سفارشات'
+
+    def total_without_tax(self):
+        return sum(item.total() for item in self.items.all())
+
+
+    def total_with_discount(self):
+        total_with_item_discount = sum(item.total_with_discount() for item in self.items.all())
+        if self.discount_code and self.discount_code.is_valid():
+            discount_percent = self.discount_code.percent
+            return total_with_item_discount * ((100 - discount_percent) / 100)
+        return total_with_item_discount
+
+
+    def tax(self):
+        return self.total_without_tax() * 0.2
+    
+    def total(self):
+        return self.total_without_tax + self.tax()
+
+    def remove_order_item(self, item_pk, quantity):
+        pass
+    def add_order_item(self, item_pk, quantity):
+        status = ''
+        return status
+
+    def clear_cart(self):
+        pass
+
+
+
+class OrderItemModel(models.Model):
+    order = models.ForeignKey(OrderModel, on_delete=models.CASCADE, related_name='items')
+    quantity = models.SmallIntegerField(verbose_name="تعداد")
+    product = models.ForeignKey(ProductModel, on_delete=models.CASCADE, verbose_name="محصول")
+    class Meta:
+        verbose_name = 'محصول خریداری شده'
+        verbose_name_plural = 'محصولات خریداری شده'
+
+    def total(self):
+        return self.quantity * self.product.get_toman_price()
+
+    def total_with_discount(self):
+        return self.quantity * self.product.get_toman_price_after_discount()
+
+
+class DiscountCode(models.Model):
+    name = models.CharField(max_length=50)
+    percent = models.DecimalField(max_digits=4, decimal_places=2)
+    quantity = models.PositiveIntegerField()
+    expiration_date = models.DateTimeField()
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = 'کد تخفیف'
+        verbose_name_plural = 'کد های تخفیف'
+    def is_valid(self):
+        return self.expiration_date > timezone.now() and self.quantity > 0

backend/order/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

backend/order/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.