CODEWITHSUNDEEP
djangodjango-rest-framework
Jeroj82
Jeroj82

Reputation: 401

Django rest framework how to get foreign key value

I have two basic classes and i have a serializer like this:

class SomeSerializer(serializers.ModelSerializer):

    def get_fields(self, *args, **kwargs):
        fields = super(SomeSelializer, self).get_fields()
        user = self.context['view'].request.user
        fields['project'].queryset = fields['project'].queryset.filter(user=user)
        return fields

    class Meta:
        model = SomeModel
        fields = ('id', 'name', 'project', 'user')
        read_only_fields = ('id','user')

Project field is a foreign key to model project. How can I get some field from project instead its id?

When I'm trying this:

project = ProjectSerializer(source="project")

I get AttributeError: 'ProjectSerializer' object has no attribute 'queryset'

Upvotes: 1

Views: 841

Answers (2)

Dhia
Dhia

Reputation: 10609

I will recommend to define a custom attribute using SerializerMethodField :

class SomeSerializer(ModelSerializer):
    project_some_field = SerializerMethodField()
    # ...
    def get_project_some_field(self, obj):
        return obj.some_field

NB: by convention if the attribute name is x, the the method should be get_x

For more info check here.

Upvotes: 0

WutWut
WutWut

Reputation: 1234

You can't Access the Project field using the serializer. First in the python shell create the model's object and then serialize it using 

serializer=ProjectSerializer(object)

You can then Access the Project field using - 

 serializer.data.project

Upvotes: 0

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