I have this code:
-----
class Group(db.Model):
leader = db.UserProperty()
description = db.StringProperty(multiline=False)
name = db.StringProperty(multiline=False)
class Person(db.Model):
email = db.UserProperty()
groups = db.ListProperty(db.ReferenceProperty(Group))
class Message(db.Model):
content = db.StringProperty(multiline=True)
group = db.ReferenceProperty(Group)
writer = db.ReferenceProperty(Person)
date = db.DateTimeProperty(auto_now=True)
----
and this line is giving me an error:
groups = db.ListProperty(db.ReferenceProperty(Group))
Here is my call stack:
----
Traceback (most recent call last):
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 3245, in _HandleRequest
self._Dispatch(dispatcher, self.rfile, outfile, env_dict)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 3186, in _Dispatch
base_env_dict=env_dict)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 531, in Dispatch
base_env_dict=base_env_dict)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 2410, in Dispatch
self._module_dict)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 2320, in ExecuteCGI
reset_modules = exec_script(handler_path, cgi_path, hook)
File "C:\Program Files\Google\google_appengine\google\appengine\tools
\dev_appserver.py", line 2216, in ExecuteOrImportScript
exec module_code in script_module.__dict__
File "C:\Documents and Settings\robodoggy\My Documents\coolkevapp
\MainPage.py", line 31, in <module>
class Person(db.Model):
File "C:\Documents and Settings\robodoggy\My Documents\coolkevapp
\MainPage.py", line 33, in Person
groups = db.ListProperty(db.ReferenceProperty(Group))
File "C:\Program Files\Google\google_appengine\google\appengine\ext
\db\__init__.py", line 2971, in __init__
raise TypeError('Item type should be a type object')
TypeError: Item type should be a type object
-----
What I'm trying to do is to create a list of groups that each person
belongs to. As you can see, it dislikes me having a list of Groups.
Does anyone know an alternative way to do this?
-----
Sorry if I wasn't clear with something. Ask and I'll answer.
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