I tried using the serialization as documented in
http://docs.djangoproject.com/en/dev/topics/serialization/ and do
something along the lines of
json = serializers.get_serializer('json')()
json.serialize(o, ensure_ascii=False, fields=fields)
"o" is a list of models that contain a reference to another model
(foreign key), similar to what is described in [1]:
### start
class MyModel(models.Model):
category = models.ForeignKey(Category)
...
class Category(models.Model)
... # name, and other attributes
### end
I have observed a somewhat unintuitive behavior and would like to ask,
whether this is intended, or I just did not see the right hint in the
documentation:
- If I pass "None" to the 'fields' argument in json.serialize, I
receive the key of the referenced category in the serialized result
along all other fields of MyModel and keys of other referenced models.
- If I pass "['category']" to the 'fields' argument in
json.serialize, the resulting fields are empty (in json: "fields":
{ })
After stepping through the code, I found out that this behavior is
controlled in django.core.serializers.base.Serializer [2], and that I
can show the referenced category, if I pass 'categ' instead of
'category' as field name; i.e. passing 'categ' in the fields argument
results in the json "fields": { "category": <key> }
Could anybody explain why this is the case? Did I miss something in
the documentation, or should I have done something else to have the
keys of the referenced models included in the serialized result?
Thank you,
Kariem
[1]
http://groups.google.com/group/django-users/browse_thread/thread/a3dd017a9ec0dadf
[2]
http://code.djangoproject.com/browser/django/tags/releases/1.0/django/core/serializers/base.py#L46
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