How to show a message to a django admin after saving a model?

问题

I want to display a message to admins after they save a particular model, something like "Now enable the series".

I can see how I'd do this if it were a list action (message_user) but I can't see how to do this from the main CRUD form.

Does anyone know how?

Thanks

回答1:

Old question, but worth at least a small example as I think this is quite a common issue.

@Davor Lucic pointed to the right solution. As of today, Django ships with a cool message framework that helps a lot with this.

So, say you want to give notice within the Django Admin whenever a car object within your Car model changes owner, you could do something like that:

admin.py

from django.contrib import admin
from django.contrib import messages

from .models import Car


@admin.register(Car)
class CarAdmin(admin.ModelAdmin):
    list_display = ('owner', 'color', 'status', 'max_speed', )

    def save_model(self, request, obj, form, change):
        if 'owner' in form.changed_data:
            messages.add_message(request, messages.INFO, 'Car has been sold')
        super(CarAdmin, self).save_model(request, obj, form, change)

It's worth mentioning that if you want to include HTML tags in your message, you have to add:

from django.utils.safestring import mark_safe

which allows you to do something like:

messages.add_message(request, messages.INFO, mark_safe("Please see <a href='/destination'>here</a> for further details"))

No need to say you'd better be sure the code you're adding is REALLY safe.

Nothing exceptional, but maybe (and hopefully) someone will find it useful.

回答2:

You can override save_model method on ModelAdmin so you can add message using message framework after you save your object.

回答3:

@Seether answer is right but it display 2 messages as mentioned by @Uday in comment.

Display only one custom message

Answered by @Dylan For anyone who needs to eliminate the automatic Django success message in a more flexible way or

from django.contrib import messages

class SomeAdmin(admin.ModelAdmin):
      def message_user(self, *args): # overridden method
            pass

      def save_model(self, request, obj, form, change):

          messages.add_message(request, messages.INFO, 'Custom message goes here')

来源：https://stackoverflow.com/questions/3712814/how-to-show-a-message-to-a-django-admin-after-saving-a-model

标签

django

django-admin