Masalah utama adalah pengait %22to_representation%22 tidak diterapkan di Django rest serializers.
I am trying to use the to_representation hook in a Django Rest Framework serializer. I want to add a field that is not part of the model. Here is my code: <code>class UserSerializer(serializers.ModelSerializer): class Meta: model = User fields = ('id', 'username', 'email') def to_representation(self, instance): representation = super().to_representation(instance) representation['full_name'] = instance.get_full_name() return representation </code> However, this does not work and I get an error saying that full_name is not a valid field for my model. How can I use this hook correctly? A: You should override <code>get_fields()</code> method instead of <code>to_representation()</code>: <blockquote> <p><strong><a href="https://www.django-rest-framework.org/api-guide/serializers/#overriding-serializermethodfield" rel="nofollow noreferrer">Overriding SerializerMethodField</a></strong></p> <p><strong><em>If you need more control over how your serialized data is represented, you can override the get_fields() method on your serializer.</em></strong></p> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote>(emphasis mine) (source) (source2) (source3) (source4) (source5) (source6) ... etc... etc... etc... etc... ... and so on... and so forth.... ) ๐ ๐ ๐ ๐ ๐ ๐ ๐ ... and so on.... and so forth.... . . . . . .. .. .. .. .... .... .... .... ... ... ... ... ......... ................. .......... .......... ............... ................. .......... .......... ...... ...... ...... ...... ...... ...... ............... .................. .................. .................. .............. .............. .............. .............. ...................... ...................... ...................... ...................... ................. ................. ................. ................. .......... .......... .......... .......... ......... ......... ......... ......... ..... ..... ..... ..... ... ... ... ... . . . . .) ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ^^ ^^ ^^ ^^ ^^ ^^ ^^ ^^ vvv vvv vvv vvv vvv vvv vvv ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ <<<<<<<<<>>>>> & &; &; &; &; { { { { { { { } } } } } } [ [ [ [ [ ] ] ] ] ] | | | | ~ ~ ~ ` ` ` , , , - - - / / / ' ' " " # # $ $ % % &" " '( ) * + , - ./ 0 1 2 3 4 5 6 7 8 9 : ; <"= ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ ] _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ โ รรผรฉรขรคร รฅรงรชรซรจรฏรฎรฌรร รรฆรรดรถรฒรปรนรฟรรรธยฃรกรญรณรบรฑรยชยบยฟยฎยฌยฝยผยกยซยปโโโโโคโกโขโโโฃโโโโโโโโดโฌโโโผโโโโโโโโโโโโโโโโโโโโ โโ โโ โโ โโ โโ โโ โโ โ โ โ โ โ โ โ โ โค โโ โ โโ โ โโ โ โโ โ โโ โ โโ โ โโ โ โโ โ โโ โ โโ โโโโโโโโโโโโโ โโโโโโโโโโโโโโโโโโโโโโโโโ โโ โโ โโ โโ โโ โโ โโ โโ โโ โโ โโ โโ โโ โโ โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
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Kode sedang mencoba menambahkan bidang yang disebut 'nama_lengkap' ke UserSerializer yang bukan bagian dari model. Ini dilakukan dengan mengganti metode get_fields() dan menambahkan bidang full_name ke kamus bidang.
Serializer mengistirahatkan frameword
Serializers adalah kelas objek yang dapat digunakan untuk menyimpan data dalam model. Serializers dapat digunakan untuk mengubah data menjadi format yang dapat disimpan dalam database.
Apa kait di Django
Pengait adalah fungsi di Django yang memungkinkan Anda menjalankan kode pada titik tertentu dalam pemrosesan permintaan. Hook berguna untuk melakukan pemrosesan khusus pada permintaan yang masuk, atau untuk menangani situasi tertentu yang mungkin muncul.