adding user update on application status change signal

agriwise/agriculture_specialist/helpers.py

@@ -0,0 +1,14 @@
+from django.core.mail import EmailMessage
+from rest_framework.exceptions import APIException
+
+
+def send_email(subject, message, recipient_list):
+    try:
+        email = EmailMessage(
+            subject=subject,
+            body=message,
+            to=recipient_list,
+        )
+        email.send()
+    except Exception as e:
+        raise APIException(detail=str(e))

agriwise/agriculture_specialist/signals/handlers.py

@@ -1,6 +1,8 @@
 import os
 
-from django.db.models.signals import pre_delete
+from agriculture_specialist.helpers import send_email
+from django.contrib.auth import get_user_model
+from django.db.models.signals import post_save, pre_delete
 from django.dispatch import receiver
 
 from agriwise.agriculture_specialist.models import ProfileUpgradeApplication
@@ -15,3 +17,36 @@ def _delete_document_file(path):
 def delete_document_file(sender, instance, *args, **kwargs):
     if instance.documents:
         _delete_document_file(instance.documents.path)
+
+
+@receiver(post_save, sender=ProfileUpgradeApplication)
+def update_user_on_application_acceptance(sender, instance, *args, **kwargs):
+    user = (
+        get_user_model().objects.filter(profileupgradeapplication=instance.id).first()
+    )
+    if not kwargs["created"]:
+        if instance.status == "A":
+            user.is_agriculture_specialist = True
+            user.save()
+            # sending acceptance email to the user
+            subject = "Congratulations on Upgrading Your Account"
+            message = (
+                f"Dear {user.username},\n\nCongratulations on upgrading your account with us! "
+                f"With your new account, you'll have access to a variety of features and capabilities "
+                f"that will help you get the most out of our platform. Thank you for choosing us, and "
+                f"we look forward to continuing to serve you.\n\nBest regards,\n[Agriwise Team]"
+            )
+            recipient_list = [user.email]
+            send_email(subject=subject, message=message, recipient_list=recipient_list)
+
+        elif instance.status == "R":
+            # sending reject email to the user
+            subject = "Rejection of Upgrading Your Account"
+            message = (
+                f"Dear {user.username},\n\nUnfortunately, We regret to inform you that we are"
+                f" unable to process your request to upgrade your account at this time due to "
+                f"not enough application. Please contact us for more information."
+                f"\n\nBest regards,\n[Agriwise Team]"
+            )
+            recipient_list = [user.email]
+            send_email(subject=subject, message=message, recipient_list=recipient_list)

agriwise/agriculture_specialist/views.py

@@ -1,4 +1,3 @@
-from django.contrib.auth import get_user_model
 from django.http import Http404
 from django.shortcuts import get_object_or_404
 from rest_framework import permissions, status
@@ -46,14 +45,6 @@ def put(self, request, pk, *args, **kwargs):
         )
         application_serializer.is_valid(raise_exception=True)
         application_serializer.save()
-        if application_serializer.data["status"] == "A":
-            user = (
-                get_user_model()
-                .objects.filter(profileupgradeapplication=application.id)
-                .first()
-            )
-            user.is_agriculture_specialist = True
-            user.save()
         return Response(application_serializer.data, status=status.HTTP_202_ACCEPTED)
 
 
@@ -71,7 +62,10 @@ def get(self, request, *args, **kwargs):
 
     def post(self, request, *args, **kwargs):
         application_serializer = ProfileUpgradeApplicationUserSerializer(
-            data={"user": request.user.id, "documents": request.data["documents"]}
+            data={
+                "user": request.user.id,
+                "documents": request.data.get("documents", ""),
+            }
         )
         application_serializer.is_valid(raise_exception=True)
         application_serializer.save()