HTTP Redirect

[frbor]

First of all, I really appreciate the effort that has put into this framework. From my initial testing it seems like it can replace all javascript code in many projects.

However, I have found one issue that I'm unable to solve.

On a component I have a function that creates a new instance from a model object. I then want to redirect the user to a specific page where the ID of the newly crated instance is part of the url. Can that be achieved in any way?

So from this in the view:

book = Book(title="Title)
book.save()

redirect to url /book/<book.id>

Can this be solved by any functionality here today?

It might that this should be solved using a combination of form/action, but my thought is that validation needs to be done in the view, and I prefer not to POST until I have created the model instance and now the new id.

I managed to partly solve it by manually updating a value that is rendered in the template with this content:

<meta http-equiv="refresh" content="0;url=/book/<book.id>" />

However, this is some what a hack, and I did not get it to work in Firefox (only in Chrome).

If you have any input on how to solve this problem, or alternatives that I have overlooked in the documentation it would really help.

best regards, Fredrik

[adamghill]

Thanks for the kind words @frbor!

unicorn doesn't currently solve this problem, but it is a great idea and does seem like a common use case that should be handled gracefully. My initial thought is that it would be nice if components could utilize the Django redirect shortcut (https://docs.djangoproject.com/en/3.1/topics/http/shortcuts/#redirect). Something like:

from django.shortcuts import redirect

def save_book(self):
    book = Book(title="Title)
    book.save()

    return redirect("edit-book", pk=book.id)

Does that seem reasonable? If so, I'll try to include support for HTTP redirects into the next release (0.12.0).

[frbor]

Hi @adamghill, I appreciate your fast response.

It sounds like a really nice solution, if it possible to integrate it with the redirect shortcut!

[adamghill]

PR with my initial attempt that seems to work pretty well with my limited testing: #98. I'll try it in a few other browsers, make some unit tests, add documentation, and then it should be ready for release. 👍

[adamghill]

@frbor I added this functionality in 0.12.0 which is now on PyPI. Documentation is here: https://www.django-unicorn.com/documentation/components/redirecting. Let me know if you run into any bugs. Thanks for the suggestion!

[frbor]

Thanks, I have verified that it works as expected and without problems in a test application.

I also like the documented features of HashUpdate and LocatioUpdate. Nice additions!