如何在 AppEngine 中获取所有实体类型

Question

How can I retrieve all of the entity types from the datastore in appengine? For examaple, in my ORM I have defined:

class Person(db.Model):
  # fields here...

class Employee(db.Model):
  # fields here...

I want a way to get "Employee" and "Person" in a list, but not the actual data.

Thanks in advance!

Answer 1

Look in http://code.google.com/appengine/docs/python/datastore/metadataqueries.html and look for

q = Kind.all()

That's the snippet you need.