Asked By – user1687717
I want to create a model object, like Person, if person’s id doesn’t not exist, or I will get that person object.
The code to create a new person as following:
class Person(models.Model): identifier = models.CharField(max_length = 10) name = models.CharField(max_length = 20) objects = PersonManager() class PersonManager(models.Manager): def create_person(self, identifier): person = self.create(identifier = identifier) return person
But I don’t know where to check and get the existing person object.
Now we will see solution for issue: Create Django model or update if exists
If you’re looking for “update if exists else create” use case, please refer to @Zags excellent answer
Django already has a
For you it could be :
id = 'some identifier' person, created = Person.objects.get_or_create(identifier=id) if created: # means you have created a new person else: # person just refers to the existing one
This question is answered By – bakkal
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