redirect to previous page after a successful edit?

Using Django
1

Basically, I want to implement in code what happens when the user presses the back button in a browser.

The main reason is that the edit form for a particular model can be accessed via different url routes, and therefore there are multiple access points into the edit form. I would prefer not having to hard code all the various access points if that makes any sense.

2

History.back() can emulate the browser’s back button

3

Thanks buddy, the more I think about it, I should know how users are linking through to various models. Therefore, what I’ve currently done is examine in the model the type of user and how they ended up there. I know an ordinary user won’t come through to the model if they aren’t a super-user via a list of users (if that makes any sense). At the moment, I allow super-users to view all other users without using django admin (I don’t know if that’s a good/bad idea – but I’m doing it to learn something) . btw - I bunged in city to see if it worked as descendant of user (I would probably link it to a different model (i.e. address) in the real world.

class MyUser(AbstractUser):
    City = models.TextField(default='')
  
    def get_absolute_url(self):
         if self.is_superuser:
            return reverse('users')  
        else:
            return reverse('index')
4

If it serves your purpose it works.
Surely you can optimize it but, as you say, you’re learning so in the future you may know why this is a good/bad option based on experience.

5

A common pattern (and one that is used by the Django admin site) is to use something like a next querystring parameter. The view code can detect if the next parameter exists and redirect to that page if it does.

Here’s an example from one of my projects where I applied this pattern.

<a href="{% url "courses:task_edit" uuid=task.uuid %}?next={{ request.path|urlencode }}">
1 Like
6

Ah…yes. Like it.

I think I read somewhere, maybe two-scoops django, that you should keep urls simple and let the views do the heavy lifting. I’m probably way of track though, as I’ve read a lot of stuff recently and I’m probably totally wrong. It’s all sort of coalesced and needs to be filtered.

Do you have a github account I can view your code?

7

I do! The repo for this example is https://github.com/mblayman/homeschool. I stream about the project every week on Twitch so I post videos to YouTube from each stream. I’ve got extra info on the project at https://www.mattlayman.com/building-saas/. I hope that helps.

2 Likes
8

Thanks dude, it does, I’ll be sure to have a look at the repo.