[google-appengine] Using Django Forms with References

[Andrew Chilton]

Hi Everyone,

I followed the article "Django Form Validation Framework on Google App
Engine"[1] and was pleasantly surprised at how easy it was. So the
next step was to try it with a Model which contained a
ReferenceProperty to another model.

e.g. Each Section has a Layout. SectionForm is a form for the Section model.

class Layout(db.Model):
  name = db.StringProperty()
  desc = db.TestProperty()

class Section(db.Model):
  name = db.StringProperty()
  layout = db.ReferenceProperty(Layout)

class SectionForm(djangoforms.ModelForm):
  class Meta:
    model = Section

Using the SectionForm for creating, saving and editing the Section
model is great, however, the <select> box rendered isn't quite humanly
readable. It works but I and especially the user doesn't know which
Layout (three of them) each selection is referring to.

<select name="layout" id="id_layout">
  <option value="" selected="selected">---------</option>
  <option value="agpjaGlsdHMtb3JnchMLEg1TZWN0aW9uTGF5b3V0GAUM">&lt;models.Layout
object at 0x8d65a6c&gt;</option>
  <option value="agpjaGlsdHMtb3JnchMLEg1TZWN0aW9uTGF5b3V0GAYM">&lt;models.Layout
object at 0x8d658ac&gt;</option>
  <option value="agpjaGlsdHMtb3JnchMLEg1TZWN0aW9uTGF5b3V0GAcM">&lt;models.Layout
object at 0x8d8a9ec&gt;</option>
</select>

The value="" attribute is fine but I'd love it if I could actually
show the Layout.name of each layout as the human readable bit (the
content inside each <option> tag). e.g.

<select name="layout" id="id_layout">
  <option value="" selected="selected">---------</option>
  <option value="agpjaGlsdHMtb3JnchMLEg1TZWN0aW9uTGF5b3V0GAUM">Layout 1</option>
  <option value="agpjaGlsdHMtb3JnchMLEg1TZWN0aW9uTGF5b3V0GAYM">Test
Layout</option>
  <option value="agpjaGlsdHMtb3JnchMLEg1TZWN0aW9uTGF5b3V0GAcM">Default</option>
</select>

Does anyone have any ideas on:

1) how to do it automatically but still using DjangoForms?
2) how to override the rendering of the form so I can do it manually?

Many thanks.

Cheers,
Andy

[1] http://code.google.com/appengine/articles/djangoforms.html

-- 
contact: Andrew Chilton
website: http://www.chilts.org/

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups 
"Google App Engine" group.
To post to this group, send email to google-appengine@googlegroups.com
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en
-~----------~----~----~----~------~----~------~--~---