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Fixed #22135 -- Added ModelAdmin.get_changeform_initial_data().

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Allows custom behavior for setting initial form data in ModelAdmin.
By default, initial data is set via GET params. The new method allows
this behavior to be overridden.

Thanks egasimus for the suggestion.
This commit is contained in:
Greg Chapple 2014-02-26 22:34:19 +00:00 • committed by Tim Graham
parent 6b63742ce5
commit 6acaa52386
5 changed files with 53 additions and 10 deletions
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27
django/contrib/admin/options.py
View file

@ -1308,6 +1308,22 @@ class ModelAdmin(BaseModelAdmin):
inline_admin_formsets.append(inline_admin_formset)
return inline_admin_formsets
def get_changeform_initial_data(self, request):
"""
Get the initial form data.
Unless overridden, this populates from the GET params.
"""
initial = dict(request.GET.items())
for k in initial:
try:
f = self.model._meta.get_field(k)
except models.FieldDoesNotExist:
continue
# We have to special-case M2Ms as a list of comma-separated PKs.
if isinstance(f, models.ManyToManyField):
initial[k] = initial[k].split(",")
return initial
@csrf_protect_m
@transaction.atomic
def changeform_view(self, request, object_id=None, form_url='', extra_context=None):
@ -1358,16 +1374,7 @@ class ModelAdmin(BaseModelAdmin):
return self.response_change(request, new_object)
else:
if add:
# Prepare the dict of initial data from the request.
# We have to special-case M2Ms as a list of comma-separated PKs.
initial = dict(request.GET.items())
for k in initial:
try:
f = opts.get_field(k)
except models.FieldDoesNotExist:
continue
if isinstance(f, models.ManyToManyField):
initial[k] = initial[k].split(",")
initial = self.get_changeform_initial_data(request)
form = ModelForm(initial=initial)
formsets, inline_instances = self._create_formsets(request, self.model())
else: