Django-tastypie-如何包含选择？

Question

I have a model field like this

location_state = models.CharField(max_length=255, null=True, blank=True, choices=STATE_CHOICES)

Its value is returned by tastypie, but for rendering a listbox a list of all available choices is needed. What's the best way to expose such choices via a resource?

Answer 1

I couldn't find an easy way of getting the choices out for some reason, but this will do the trick.

YourModel._meta.get_field('location_state').choices

You should note though, _meta is an internal implementation detail, but has been relied upon with a large number of apps and extensions so it should be relatively safe to use.

Answer 2

I'd use the built-in schema to inform the client about field options. Still, choice options are not included in the schema resource by default. This thread shows one way how to achieve this.

Edit 2013-03-19 :

Alternatively you could add your choices to the meta field by using / overriding the alter_list_data_to_serialize method in your ModelResource .