#13005: We need a way to allow for request/user specific default values in the
admin fields
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Reporter: hejsan | Owner: nobody
Status: new | Milestone:
Component: django.contrib.admin | Version: 1.2-beta
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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I propose a new function in line with the get_readonly_fields(self,
request, obj=None) function in the ModelAdmin class.
It could have the following signature:
{{{
def default_value_for_formfield(self, request, field_name, obj=None)
}}}
And by default return None (or "") or in the case of a ModelForm, it
should of return the default value of the related Model.
This is usefull because it could then be overridden in our ModelAdmin
subclass to return different values dependant on for example the
permissions of the currently logged in user:
{{{
def default_value_for_formfield(self, request, field_name, obj=None)
super(NewsArticleAdmin, self).default_value_for_formfield(self,
request, field_name, obj)
user = request.user
if not user.is_superuser:
if 'categories' == field_name:
if not user.has_perm('news.choose_category'):
return PK_OF_SOME_CATEGORY
if 'authors' == field_name:
if not user.has_perm('news.choose_author'):
# Can only mark him/herself as author
return user.pk
return super(NewsArticleAdmin, self).default_value_for_formfield(self,
request, field_name, obj)
}}}
I know that this functionality could be made happen using the save_model()
method of the ModelAdmin class, but this way is still prettier, it looks
better to the end user to have the actual name of the category displayed
instead of (None) in the case of readonly fields and reliefs any
ambiguity.
This makes the new get_readonly_fields() method all the more usefull.
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Ticket URL: <http://code.djangoproject.com/ticket/13005>
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