add: add chat for income and expence

core/apps/finance/models/expence_chat.py

@@ -0,0 +1,30 @@
+from django.db import models
+
+from core.apps.shared.models import BaseModel
+from core.apps.finance.models import Expence
+from core.apps.accounts.models import User
+
+
+class ExpenceChat(BaseModel):
+    expence = models.OneToOneField(Expence, on_delete=models.CASCADE, related_name='expence_chats')
+
+    def __str__(self):
+        return f'{self.expence} chat'
+    
+    class Meta:
+        verbose_name = 'Chiqim chat'
+        verbose_name_plural = 'Chiqim chatlari'
+
+
+class ExpenceMessage(BaseModel):
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='expence_messages')
+    chat = models.ForeignKey(ExpenceChat, on_delete=models.CASCADE, related_name='expence_messages')
+    file = models.FileField(upload_to='finanice/expence/message/', null=True, blank=True)
+    message = models.CharField(max_length=250, null=True, blank=True)
+    
+    def __str__(self):
+        return f'message from {self.user} for {self.chat}'
+    
+    class Meta:
+        verbose_name = 'Chiqim xabari'
+        verbose_name_plural = 'Chiqim xabarlari'