[ACCEPTED]-Django admin, custom error message?-django-admin
Accepted answer
One way to do that is by overriding the 4 ModelForm for the admin page. That allows 3 you to write custom validation methods and 2 return errors of your choosing very cleanly. Like 1 this in admin.py:
from django.contrib import admin
from models import *
from django import forms
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
def clean_points(self):
points = self.cleaned_data['points']
if points.isdigit() and points < 1:
raise forms.ValidationError("You have no points!")
return points
class MyModelAdmin(admin.ModelAdmin):
form = MyForm
admin.site.register(MyModel, MyModelAdmin)
Hope that helps!
I've used the built-in Message system for 5 this sort of thing. This is the feature 4 that prints the yellow bars at the top of 3 the screen when you've added/changed an 2 object. You can easily use it yourself:
request.user.message_set.create(message='Message text here')
See 1 the documentation.
Django versions < 1.2 https://docs.djangoproject.com/en/1.4/ref/contrib/messages/
from django.contrib import messages
messages.add_message(request, messages.INFO, 'Hello world.')
0
Source:
stackoverflow.com
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