Re: Django form needs pagination and saved data - how????

On Jul 28, 2017 5:56 PM, "Jim Illback" <subaru_87@hotmail.com> wrote:

I use the latest versions of Django, python, bootstrap3, and crispy forms for this project.

I am trying to present a list of flashcards to a user, sorted by category (e.g., Math, Vocabulary, etc.). Then, I want the user to check either the full category or individual flashcards to be added to their practice account. 

To maintain user inputted checkboxes on multiple pages, I must use POST. But, pagination only uses GET. So, a hack on pagination is to wrap the Next/Previous buttons in a sub-form and POST using the buttons. This works for pagination, but then my normal "I'm done, submit this session and process the updates" button - my submit button - does nothing: no GET, no POST, nothing. 

How can I enable pagination, multiple screen data accumulation across pages, and final submission of the session when complete? 

I can't speak to your submit button issue, other than either a piece of JavaScript is getting in the way, or the button is located outside of a <form> tag.

As for the rest of your troubles, it really sounds like you need a form wizard framework, which is what I think you mean by "pagination". Django used to ship one as part of the contrib package, but has since moved it out to it's own separately maintained app.

https://django-formtools.readthedocs.io/en/latest/wizard.html

It handles keeping data state across multiple form submissions, along with dynamic form additions/omissions based on previous steps.

Another option you may consider is developing this process like a single-page-application, where all of the data and forms are managed via JS, and the final collection of data is submitted as a single blob to the server for permanent storage. That's obviously over simplified, but I hope you catch my meaning.

-James

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