Show error if doctor is not linked to the consultation facility (#2309)

* Show error if doctor is not linked to the consultation facility

* Don't allow save if home facility is not set

* Update care/facility/api/serializers/patient_consultation.py

Co-authored-by: Aakash Singh <mail@singhaakash.dev>

* Fix linting

---------

Co-authored-by: Aakash Singh <mail@singhaakash.dev>
Co-authored-by: Vignesh Hari <14056798+vigneshhari@users.noreply.github.com>
Co-authored-by: vigneshhari <vichuhari100@gmail.com>

Author: 3 people

care/facility/api/serializers/patient_consultation.py

@@ -630,6 +630,12 @@ def validate(self, attrs):
                 and self.instance.facility
                 or validated["patient"].facility
             )
+            # Check if the Doctor is associated with the Facility (.facilities)
+            if not treating_physician.facilities.filter(id=facility.id).exists():
+                raise ValidationError(
+                    "The treating doctor is no longer linked to this facility. Please update the respective field in the form before proceeding."
+                )
+
             if (
                 treating_physician.home_facility
                 and treating_physician.home_facility != facility