Babban matsalar ita ce %22to_wakili%22 ba a aiwatar da ฦugiya a cikin serializers sauran django.
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
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Lambar tana ฦoฦarin ฦara filin da ake kira 'full_name' zuwa Serializer User wanda baya cikin ฦirar. Yana yin haka ta hanyar ฦetare hanyar get_fields() da ฦara filin cikakken_name zuwa ฦamus na filayen.
Serializers sun huta ฦamus
Serializers rukuni ne na abubuwa waษanda za a iya amfani da su don nacewa bayanai a cikin samfuri. Ana iya amfani da serializers don canza bayanai zuwa tsarin da za a iya adanawa a cikin ma'ajin bayanai.
Menene ฦugiya a cikin Django
ฦugiya wani aiki ne a Django wanda ke ba ka damar gudanar da lamba a wasu wurare a cikin sarrafa buฦatun. Kugiyoyin suna da amfani don yin aiki na al'ada akan buฦatun masu shigowa, ko don sarrafa takamaiman yanayi waษanda zasu iya tasowa.
