fix print and preview quote and add broker to req and complete company model.

processes/models.py

@@ -5,7 +5,7 @@ from simple_history.models import HistoricalRecords
 from django.core.exceptions import ValidationError
 from django.utils import timezone
 from django.conf import settings
-from accounts.models import Role
+from accounts.models import Role, Broker
 from _helpers.utils import generate_unique_slug
 import random
 
@@ -174,7 +174,7 @@ class ProcessInstance(SluggedModel):
         blank=True,
         verbose_name="مرحله فعلی",
     )
-    
+
     status = models.CharField(
         max_length=20,
         choices=STATUS_CHOICES,
@@ -188,6 +188,15 @@ class ProcessInstance(SluggedModel):
         default='medium',
         verbose_name="اولویت"
     )
+
+    broker = models.ForeignKey(
+        Broker,
+        on_delete=models.SET_NULL,
+        verbose_name="کارگزار",
+        blank=True,
+        null=True,
+        related_name='process_instances'
+    )
     
     completed_at = models.DateTimeField(
         null=True,
@@ -205,13 +214,6 @@ class ProcessInstance(SluggedModel):
             return f"{self.process.name} - {self.well.water_subscription_number}"
         return f"{self.process.name} - {self.requester.get_full_name()}"
 
-    def clean(self):
-        """اعتبارسنجی مدل"""
-        if self.well and self.representative and self.well.representative != self.representative:
-            raise ValidationError("نماینده درخواست باید همان نماینده ثبت شده در چاه باشد")
-        
-        if self.well and self.representative and self.requester == self.representative:
-            raise ValidationError("درخواست کننده نمی‌تواند نماینده چاه باشد")
 
     def save(self, *args, **kwargs):
         # Generate unique 5-digit numeric code if missing
@@ -233,6 +235,13 @@ class ProcessInstance(SluggedModel):
         if self.status == 'completed' and not self.completed_at:
             self.completed_at = timezone.now()
         
+        # Auto-set broker if not already set
+        if not self.broker:
+            if self.well and hasattr(self.well, 'broker') and self.well.broker:
+                self.broker = self.well.broker
+            elif self.requester and hasattr(self.requester, 'profile') and self.requester.profile and hasattr(self.requester.profile, 'broker') and self.requester.profile.broker:
+                self.broker = self.requester.profile.broker
+        
         super().save(*args, **kwargs)
 
     def get_status_display_with_color(self):