Django rest Framework error messages. Does not work-CodePudding

I am new to Django and I am working on a small project, I want an error message to be shown if the user let the field empty. the code that I wrote is not working. Can anyone help me ?

 def validate_name(school: School):
    if school.name is None:
      raise APIException(detail='Name is mandatory.')

 class SchoolService(object):
  @staticmethod
  def validate_create(school: School):
    validate_name(school)

CodePudding user response：

In your serializer class try adding the validation this way

from django.core.exceptions import ValidationError

def validate_name(self, value):
   if value is None:
       raise serializers.ValidationError('Name is mandatory')
   return value

CodePudding user response：

Django Rest Framework provides default messages for such common wanted behaviours.

You do not even need to add anything to your field as fields are required by default, unless you explicitly specify required=False

If the user does not fill that field, DRF will automatically return a json object mentioning the field is required and should be filled.

see docs