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Django Rest Framework 3.0: Saving Nested, Many-To-One Relationship


Django Rest Framework 3.0: Saving Nested, Many-To-One Relationship

By : user2956185
Date : November 22 2020, 10:54 AM
wish helps you The problem is that your PriceSerializer is looking for the item key because it is specified on the Price model. This isn't immediately obvious because you are using Meta.exclude instead of Meta.fields.
code :
class PriceSerializer(serializers.ModelSerializer):

    class Meta:
        model = Price
        exclude = ('user',)
class PriceSerializer(serializers.ModelSerializer):

    class Meta:
        model = Price
        fields = ('id', 'item', 'name', 'cost', )
class PriceSerializer(serializers.ModelSerializer):

    class Meta:
        model = Price
        fields = ('id', 'name', 'cost', )


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Django Rest Framework, hyperlinking a nested relationship

Django Rest Framework, hyperlinking a nested relationship


By : Troy Vitullo
Date : March 29 2020, 07:55 AM
help you fix your problem You can use a SerializerMethodField to customize it. Something like this:
code :
class UserSerializer(serializers.HyperlinkedModelSerializer):
    tickets = serializers.SerializerMethodField('get_tickets')

    def get_tickets(self, obj):
        return "http://127.0.0.1:8000/users/%d/tickets" % obj.id

    class Meta:
        model = MyUser
        fields = ('id', 'nickname', 'email', 'tickets')
Saving django model with many to many relationship to database in django rest framework

Saving django model with many to many relationship to database in django rest framework


By : Ren Chen
Date : March 29 2020, 07:55 AM
seems to work fine You should have a look at the serializer relation documentation.
You don't need anything special if you simply use ID to represent a M2M relation with DRF. You'll need to override the create/update methods only if you intend to provide non existing related objects or use nested serializers.
Django Rest Framework nested relationship

Django Rest Framework nested relationship


By : user3567581
Date : March 29 2020, 07:55 AM
it helps some times Method-1
Since you are defined __str__() method in your Pegawai model, you can use StringRelatedField(...)
code :
class BarangSerializer(serializers.ModelSerializer):
    pegawai = serializers.StringRelatedField()

    class Meta:
        model = Barang
        fields = (
            'pegawai',
            'nama_barang',
            'harga_barang',
        )
class BarangSerializer(serializers.ModelSerializer):
    pegawai = serializers.CharField(source='pegawai.name')

    class Meta:
        model = Barang
        fields = (
            'pegawai',
            'nama_barang',
            'harga_barang',
        )
class BarangSerializer(serializers.ModelSerializer):
    class Meta:
        model = Barang
        fields = (
            'pegawai',
            'nama_barang',
            'harga_barang',
        )

    def to_representation(self, instance):
        rep = super().to_representation(instance)
        rep['pegawai'] = instance.pegawai.name
        return rep
Saving a model serializer with a nested relationship with Django Rest Framework

Saving a model serializer with a nested relationship with Django Rest Framework


By : thebookworm20
Date : March 29 2020, 07:55 AM
help you fix your problem This is because the unique validator in rest_framework expect a integer value for nested relations, if you make a custom serializer for a related field, the deserialization provides a dict instead the primary key value.
So i made this solution and hope helps you too.
Many to Many Nested Relationship as List in Django Rest Framework

Many to Many Nested Relationship as List in Django Rest Framework


By : NINTO ANTONY
Date : March 29 2020, 07:55 AM
around this issue You could override to_representation on the SharedWithSerializer to flatten the contact fields one level up
For example
code :
class SharedWithSerializer(serializers.ModelSerializer):

    def to_representation(self, obj):
        representation = super().to_representation(obj)
        shared_with = representation.pop('shared_with')
        representation['shared_with'] = [entry['contact'] for entry in shared_with]
        return representation
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