Temporarily disable auto_now / auto_now_add

Question

I have a model like this:

class FooBar(models.Model):
    createtime = models.DateTimeField(auto_now_add=True)
    lastupdatetime = models.DateTimeField(auto         


        

Answer 1

copy of Django - Models.DateTimeField - Changing dynamically auto_now_add value

Well , I spent this afternoon find out and the first problem is how fetch model object and where in code . I'm in restframework in serializer.py , for example in __init__ of serializer it could not have the Model yet . Now in to_internal_value you can get the model class , after get the Field and after modify the field properties like in this example :

class ProblemSerializer(serializers.ModelSerializer):

    def to_internal_value(self, data): 
        ModelClass = self.Meta.model
        dfil = ModelClass._meta.get_field('date_update')
        dfil.auto_now = False
        dfil.editable = True