CODEWITHSUNDEEP
djangodjango-modelsdjango-viewsdjango-serializer
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Reputation: 573

Django: 'QuerySet' object has no attribute 'serialize'

models.py

class UpdateQuerySet(models.QuerySet):
    def serialize(self):
        qs = self
        return serialize('json', qs, fields=('user', 'content', 'image'))

class UpdateManager(models.Manager):
    def get_queryset(self):
        return UpdateQuerySet(self.model, using=self._db)
class Tools_booked(models.Model):
    auto_increment_id = models.AutoField(primary_key=True)
    user=models.ForeignKey(Profile, on_delete=models.CASCADE)
    component = models.CharField(max_length=30, blank=True)
    booked = models.DateTimeField(auto_now_add=True,blank=True)

    objects = UpdateManager()

    def __str__(self):
        return self.component

    def serialize(self):
        return serialize("json", [self], fields=['auto_increment_id','user','component','booked'])

in views.py

from django.core.serializers import serialize
class SerializedDetialView(View):
     def get(self, request, *args, **kwargs):
        obj = Tools_booked.objects.get(auto_increment_id=1)
        json_data = obj.serialize()
        return HttpResponse(json_data, content_type='application/json')


class SerializedListView(View):
     def get(self, request, *args, **kwargs):
        qs = Tools_booked.objects.all()
        json_data = qs.serialize()
        return HttpResponse(json_data, content_type='application/json')

I have seen the similar question, it is solved with a new class view. But why this code is not working. The error it showing for SerializedListView and SerializedDetialView urls is 

'QuerySet' object has no attribute 'serialize'

and 

'Tools_booked' object has no attribute 'serialize'

Why this error exist and how can we solve this error without creating a new class.

edit

in views.py, line 84, in get
    json_data = qs.serialize()
    AttributeError: 'QuerySet' object has no attribute 'serialize'

Upvotes: 0

Views: 916

Answers (1)

Sreevardhan Reddy
Sreevardhan Reddy

Reputation: 731

https://docs.djangoproject.com/en/3.0/topics/serialization/#serializing-data

from django.core import serializers

obj_list= Tools_booked.objects.filter(auto_increment_id=1)
json_data = serializers.serialize("json", obj_list )
return HttpResponse(json_data, content_type='application/json')

Upvotes: 3

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