I am building an activity model, somewhat similar to this package
<https://github.com/justquick/django-activity-stream>. It has an actor,
verb and the target.
class Activity(models.Model):
actor_type = models.ForeignKey(ContentType,
related_name='actor_type_activities')
actor_id = models.PositiveIntegerField()
actor = GenericForeignKey('actor_type', 'actor_id')
verb = models.CharField(max_length=10)
target_type = models.ForeignKey(ContentType,
related_name='target_type_activities')
target_id = models.PositiveIntegerField()
target = GenericForeignKey('target_type', 'target_id')
pub_date = models.DateTimeField(default=timezone.now)
Now whenever a new object of whichever models (Tender, Job and News) is
created, a new Activity object is created, with the target being the
objects of any of these three models.
eg. user (actor) published (verb) title (target)
class Tender(models.Model):
title = models.CharField(max_length=256)
description = models.TextField()
class Job(models.Model):
title = models.CharField(max_length=256)
qualification = models.CharField(max_length=256)
class News(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL)
title = models.CharField(max_length=150)
To get this data I am making an API which will get me the required json
data. I am using django-rest-framework
<http://www.django-rest-framework.org/> for this and very new with it.
class ActorSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = User
fields = ('id', 'username', 'email')
class ActivitySerializer(serializers.HyperlinkedModelSerializer):
actor = ActorSerializer()
class Meta:
model = Activity
fields = ('url', 'actor', 'verb', 'pub_date')
In the above serializers, I knew that *actor *will be the *User*. And so I
used the User model for the *ActorSerializer class*. But as for the *target*,
it can be any of these three models (News/Job/Tender).
How can I make a serializer (eg. TargetSerialier class) for the ContentType
object so that I can use the target in the ActivitySerializer class field?
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