add: add type income crud and model

core/apps/finance/models/income.py

@@ -0,0 +1,41 @@
+from django.db import models
+
+from core.apps.shared.models import BaseModel
+from core.apps.finance.models import CashTransaction, PaymentType, TypeIncome
+from core.apps.counterparty.models import Counterparty
+
+
+class Income(BaseModel):
+    cash_transaction = models.ForeignKey(
+        CashTransaction, on_delete=models.CASCADE, related_name='incomes'
+    )
+    payment_type = models.ForeignKey(PaymentType, on_delete=models.CASCADE, related_name='incomes')
+    project_folder = models.ForeignKey(
+        'projects.ProjectFolder', on_delete=models.CASCADE, related_name='incomes'
+    )
+    project = models.ForeignKey(
+        'projects.Project', on_delete=models.SET_NULL, related_name='incomes', null=True
+    )
+    counterparty = models.ForeignKey(
+        Counterparty, on_delete=models.SET_NULL, related_name='incomes', null=True
+    )
+    type_income = models.ForeignKey(
+        TypeIncome, on_delete=models.SET_NULL, related_name='incomes', null=True
+    )
+
+    currency = models.CharField(choices=[('uzs', 'uzs'),('usd', 'usd')], max_length=3)
+    price = models.PositiveBigIntegerField()
+    exchange_rate = models.PositiveBigIntegerField(default=0)
+    date = models.DateField()
+    comment = models.TextField(null=True, blank=True)
+    file = models.FileField(upload_to='finance/income/file/', null=True, blank=True)
+    audit = models.CharField(max_length=200)
+
+    def __str__(self):
+        return f'{self.cash_transaction} kassa uchun kirim {self.price}'
+    
+    class Meta:
+        verbose_name = 'kirim'
+        verbose_name_plural = 'kirimlar'
+
+