def make_select_dialog(model):
form_class = make_select_form(model)
model_name = model.__name__
dialog_class = type('M2MSelectDialog%s'%model_name, (Dialog,), {
'name': model_name,
'select': Pane(
'dialogs/select/many_to_many_select.html',
buttons=(
SubmitButton('Select', 'CLOSE'),
CancelButton('Cancel', 'CLOSE'),
),
),
'form_class': form_class,
})
# In constructing the view function, we have to use the "called" decorator instead of
# "is_dialog" because of a cyclic dependency issue.
view = staticmethod(called(('cancel',), use_background=True)(lambda x,*y,**z: many_to_many_select(x, dialog_class, form_class, *y, **z)))
# In order to use Django's "reverse" function I need to make sure the static view
# method is only attached to one class (the dialog).
dialog_class.view = view
dialog_class.base_panes['select'].view = dialog_class.view
return dialog_class
def is_dialog(dialog):
if isclass(dialog):
dialog = dialog()
return called(dialog.cancel_trigger_names, use_background=True)