change serializer fields

core/apps/projects/models/project_estimate.py

@@ -3,7 +3,55 @@ from django.utils.translation import gettext_lazy as _
 
 from core.apps.shared.models import BaseModel
 from core.apps.projects.models import Project
+from core.apps.products.models import Unity, Product
 
 
 class ProjectEstimate(BaseModel):
-    ...
+    number = models.PositiveIntegerField(default=1)
+    name = models.CharField(max_length=200)
+
+    def __str__(self):
+        return f'{self.number}.{self.name}'
+    
+    class Meta:
+        verbose_name = _('Loyiha smetasi')
+        verbose_name_plural = _('Loyiha smetalari')
+
+
+class EstimateWork(BaseModel):
+    number = models.PositiveIntegerField(default=1)
+    name = models.CharField(max_length=200)
+    quantity = models.PositiveIntegerField(default=1)
+    unity = models.ForeignKey(
+        Unity, on_delete=models.SET_NULL, null=True, related_name='estimate_works'
+    )
+    price = models.PositiveBigIntegerField(null=True, blank=True)
+    estimate = models.ForeignKey(
+        ProjectEstimate, on_delete=models.CASCADE, related_name='estimate_works'
+    )
+    date = models.DateField(null=True, blank=True)
+
+    def __str__(self):
+        return f"{self.number}.{self.name}"
+    
+    class Meta:
+        verbose_name = _("Smeta ish")
+        verbose_name = _("Smeta ishlar")
+
+
+class EstimateProduct(BaseModel):
+    product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name='estimate_products')
+    quantity = models.PositiveIntegerField(default=1)
+    price = models.PositiveBigIntegerField()
+    unity = models.ForeignKey(
+        Unity, on_delete=models.SET_NULL, null=True, related_name='estimate_products'
+    )
+    price = models.PositiveBigIntegerField(null=True, blank=True)
+    date = models.DateField(null=True, blank=True)
+
+    def __str__(self):
+        return f'{self.product} - {self.price}'
+    
+    class Meta:
+        verbose_name = _('Smeta mahsuloti')
+        verbose_name_plural = _('Smeta mahsulotlari')