add: income-expence delete api

core/apps/finance/models/expence.py

@@ -41,6 +41,7 @@ class Expence(BaseModel):
     audit = models.CharField(max_length=200, null=True, blank=True)
     file = models.FileField(null=True, blank=True, upload_to='finance/expence/files/')
     status = models.CharField(max_length=20, choices=STATUS, default='PENDING', null=True, blank=True)
+    is_deleted = models.BooleanField(default=False)
 
     def __str__(self):
         return f'{self.cash_transaction} kassa uchun chiqim {self.price}'
@@ -49,3 +50,14 @@ class Expence(BaseModel):
         verbose_name = 'chiqim'
         verbose_name_plural = 'chiqimlar'
     
+
+class DeletedExpence(BaseModel):
+    expence = models.ForeignKey(Expence, on_delete=models.CASCADE, related_name='deleted_expences')
+    comment = models.CharField(max_length=200)
+
+    def __str__(self):
+        return f'{self.expence} is deleted'
+    
+    class Meta:
+        verbose_name = "O'chirilgan chiqim"
+        verbose_name_plural = "O'chirilgan chiqim"