How to serialize the same object in different ways?

Question

Django

Hello.
The question is, how can one and the same object be serialized differently depending on the contents of another field?
Model:

class Images(models.Model):
  file_name = models.FileField(upload_to = get_file_path_image)
  ordering = models.IntegerField()
  section = models.ForeignKey(Sections, related_name = "images")
  icon = models.FileField(upload_to = get_file_path_icon)
  icon_x = models.CharField(max_length = 500)
  icon_y = models.CharField(max_length = 500)
  text = models.CharField(max_length = 500)
  link_type = models.CharField(max_length = 500)
  link = models.FileField(upload_to = get_file_path_feature)

link_type is of 3 types - Video, Panorama or Link.
Accordingly, the link is written either:
http://ec2**************.eu-west-1.compute.amazona...
or
http://ec****** *********.eu-west-1.compute.amazona...
or
google.com
How to serialize an object differently depending on the type specified in link_type?
I do it through serializers.SerializerMethodField('get_full_path_link')

def get_full_path_link(self, obj):
    if str(obj.link_type) == u'Video':
      return "http://ec***********.eu-west-1.compute.amazonaws.com" + obj.link.url

Answer 1

And what is the question? :-)
You have a get_full_path_link method - do whatever you want in it.
Well, or I misunderstood the question.

Answer 2

If we are talking about django-rest-framework, then:

1. Write some serializer classes.
   
2. In your ViewSet, override the get_serializer method, and return a serializer that is applicable to this particular case.