How to Serialize BigIntegerField, TextField in serializer Django

django serialization django-rest-framework textfield biginteger
abhishek picture abhishek · Aug 9, 2016 · Viewed 9.8k times · Source

I have a model which has following attributes

from django.db import models
class ApiLogs(models.Model):
    user_id = models.BigIntegerField(null=True)
    ip = models.CharField(max_length=16)
    user_agent = models.TextField(blank=True, null=True)
    client = models.CharField(max_length=50, blank=True, null=True)
    client_version = models.CharField(max_length=50, blank=True, null=True)
    token = models.TextField(blank=True, null=True)
    uri = models.CharField(max_length=200)
    method = models.CharField(max_length=20)

I have defined a serializer 

from rest_framework import serializers
class ApiSerializer(serializers.Serializer):
    user_id = serializers.BigIntegerField( allow_null=True)
    ip = serializers.CharField(max_length=16)
    user_agent = serializers.TextField(allow_blank=True, allow_null=True)
    client = serializers.CharField(max_length=50, allow_blank=True, allow_null=True)
    client_version = serializers.CharField(max_length=50, allow_blank=True, allow_null=True)
    token = serializers.TextField(allow_blank=True, allow_null=True)
    uri = serializers.CharField(max_length=200)
    method = serializers.CharField(max_length=20)

But it is showing error somewhat like this

user_id = serializers.BigIntegerField( allow_null=True)
AttributeError: 'module' object has no attribute 'BigIntegerField'

for textfield

user_agent = serializers.TextField(allow_blank=True, allow_null=True)
AttributeError: 'module' object has no attribute 'TextField'

Now how to serialize this type of data.

Answer

e4c5 picture e4c5 · Aug 9, 2016

This is because the django rest framework's Serializer doesn't have a TextField. Where your model has a TextField you need to use a CharField in the serializer.

CharField A text representation. Optionally validates the text to be shorter than max_length and longer than min_length.

Corresponds to django.db.models.fields.CharField or django.db.models.fields.TextField.

The documentation isn't as clear about BigIntegerFields from models, but this line for the source code shows that IntegerField is again what you have to use in the serializer.

Related questions

Django rest framework, use different serializers in the same ModelViewSet

I would like to provide two different serializers and yet be able to benefit from all the facilities of ModelViewSet: When viewing a list of objects, I would like each object to have an url which redirects to its details …

Read More
Pass request context to serializer from Viewset in Django Rest Framework

I have a case where the values for a serializer field depend on the identity of the currently logged in user. I have seen how to add the user to the context when initializing a serializer, but I am not …

Read More
When to use Serializer's create() and ModelViewset's create() perform_create()

I want to clarify the given documentation of django-rest-framework regarding the creation of a model object. So far I found that there are 3 approaches on how to handle such events. The Serializer's create() method. Here is the documentation class CommentSerializer(…

Read More