Replaced context.update call to simple value assignment in site.user.profile.create view function.

Load ../../google_appengine/ into trunk/thirdparty/google_appengine.

Take advantage of the Model inheritance provided by polymodel.PolyModel to have Club, School, Sponsor, and Organization actually inherit from the Group Model class, rather than being composed via ReferenceProperties. Patch by: Todd Larsen Review by: Pawel Solyga, Sverre Rabbelier, Augie Fackler Review URL: http://codereviews.googleopensourceprograms.com/606

Take advantage of the Model inheritance provided by polymodel.PolyModel to have create a class hierarchy rooted at Person. Also, add some missing Role classes, such as Role, (Organization) Mentor, (Club) Member, (School) Student. Make (Organization) Administrator be a Reviewer like Mentor is. Patch by: Todd Larsen Review by: Pawel Solyga, Sverre Rabbelier, Augie Fackler Review URL: http://codereviews.googleopensourceprograms.com/607

Make use of PolyModel for Works, Documents, etc. Add some (but not all) of the missing Models related to Documents. Refactor site settings to be useful for any "/home" page view. Make the resulting home settings store a reference to the Document, rather than looking up the Document by a hard-code key name. This is to set the stage for Document editing being generic, and then being able to select from some existing documents which one to use as the "/home" static content. This makes it possible to pre-edit several Documents, have them Reviewed, and then quickly change the "/home" page content as a setting, rather than editing the Document in the settings form (though settings forms might still embed the current document into their form for convenience). Patch by: Todd Larsen Review by: Pawel Solyga Review URL: http://codereviews.googleopensourceprograms.com/1001

Fixed not working "Create New User" view which was caused by adding key_name into User Edit Developer view. This commit divides edit() view function in soc.views.site.user.profile into edit() and create() request handlers. New create() request handler is used only in "Create New User" view and has specific form validation functions and uses updateOrCreateUserFromId() instead of updateUserForKeyName(). Patch by: Pawel Solyga Review by: to-be-reviewed

Add ModelWithFieldAttributes *before* PolyModel, so that everything does not become a "ModelWithFieldAttributes" in the Datastore. The way PolyModel works, each Model class hierarchy is stored in the Datastore as the class that directly inherited from PolyModel. So, we do not want to insert ModelWithFieldAttributes *after* PolyModel by inheriting *from* PolyModel, or everything would just be a ModelWithFieldAttributes in the Datastore, instead of Person, Work, Group, etc.

Add the third-party PolyModel class. This class supports inheritance in Google App Engine Datastore Model classes.

A key_name controller module to collect all of the name...() functions that compose Model entity key names, plus some minor changes to other controller modules to illustrate the proposed use. Patch by: Todd Larsen Review by: Pawel Solyga Review URL: http://codereviews.googleopensourceprograms.com/804 Review URL: http://codereviews.googleopensourceprograms.com/804

Fixed missing urlparse import in request_helpers which cause /user/profile and /site/user/profile not to work at all. Removed not used module imports in response_helpers.py.