Category: Django inline formset class based view

Django inline formset class based view

This is just a quick explanation of how to use Django's inline model formsets with generic class-based views. Handling model forms is an area where it makes sense to use class-based views but there aren't many examples of how to add inline formsets to the mix. The view class I'm using here follows the structure of the generic CreateView more closely so adding mixins, turning this pattern into a mixin, or upgrading to new versions of Django is less likely to cause unpleasant surprises.

I've written and tested this using Django 1. Let's say that our site lists recipes, which in essence are just lists of ingredients and lists of instructions for preparing those ingredients. So at their most basic our forms and models might look something like this. Our recipe creation view is very similar to Django's generic CreateView. The only thing we need to do is override a few methods so that our inline formsets are created, validated, and saved along with the main recipe form.

Here's the basic template for adding a recipe. Since it doesn't matter to the template whether we're using a function-based view or a class-based one I'm including it here mostly for the sake of completeness. The jquery. Because we've got multiple formsets on the page we need to give each one a prefix and tell the plugin which forms belong to each formset as explained in the django-dynamic-formset docs.

Subscribe This is just a quick explanation of how to use Django's inline model formsets with generic class-based views. Forms and models Let's say that our site lists recipes, which in essence are just lists of ingredients and lists of instructions for preparing those ingredients. TextField class Ingredient models. TextField forms. View Our recipe creation view is very similar to Django's generic CreateView. POST if form. Creates a Recipe instance along with associated Ingredients and Instructions and then redirects to a success page.

Re-renders the context data with the data-filled forms and errors. Template Here's the basic template for adding a recipe.GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Work fast with our official CLI. Learn more. If nothing happens, download GitHub Desktop and try again.

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For more information, see our Privacy Statement. We use essential cookies to perform essential website functions, e. We use analytics cookies to understand how you use our websites so we can make them better, e. Skip to content. Dismiss Join GitHub today GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.

Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit. Git stats 7 commits. Failed to load latest commit information. Feb 13, Update models. Jun 7, May 12, View code. I haven't done the DeleteView.

When I need one I will update this project. I am going to leave this project as an example for myself and others. Feel free to link to it. Resources Readme. Releases No releases published.

Packages 0 No packages published. Contributors 3.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am attempting to create a class based form view with an inline formset.

django inline formset class based view

I would like an 'add' button that will add a new row to the formset, and I would like it to work without javascript. I have found some helpful websites, which have allowed me to create some rough code below. My use case is a website for card game.

I have a table of cards, a table of decks, and a table of cards-in-decks. Here is some rough code of what I have so far. So my code uses the methods from my initial references.

It displays the form and formset, and clicking the "Add" button reloads the page with an extra formset row. Saving also works. The problems are ; the new row is created without any 'defaults' ie nothing selected in the card select-input, and the default quantity of 1 is not entered in the number-input. Also, the new 'empty' row is passed through validation, and the HTML renders with "This field is required.

I would like to resolve these problems, to make it more functional for the user. I am not sure how to do this though. I also believe the following link may be related, but I could not work out how to implement it if it is indeed the solution : Django class based views and formsets. I have found a solution by 'manually' setting the properties for each field of the new formset form.

Here is the amended def post that does so. This gives no validation errors when adding a form. Learn more. Asked 6 years, 2 months ago. Active 6 years, 2 months ago. Viewed 2k times. Here is some rough code of what I have so far; models. CharField class Deck models. CharField class CardsInDeck models. POST: request. Active Oldest Votes.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Ben answers his first question on Stack Overflow. The Overflow Bugs vs. Featured on Meta.Can I use it for updating multiple entries at the same time? If so, can anyone refer me to a good tutorial? Any luck finding how we use this with UpdateView instead of just CreateViewso that we update also stuff?

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Django class-based views with multiple inline formsets

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You have save my life. Why isn't this a more obvious process? What is that mean?

django inline formset class based view

What the hell is SponsorMixin? My site is in error in UpdateView form show duplicate forms. He's not actually using that in his code but it's basically an input parameter. Sign up for free to join this conversation on GitHub. Already have an account?

Sign in to comment. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Accept Reject.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I just added my own version after checking out some of those pre-made CBVs.

There, I check if all formsets are valid, and also look for a method that overrides a plain old formset. You should try out django-extra-views. The code is absolutely not ready for List editing or there is some black magic here. But I think that it can be implemented quickly. If you look at the django. I think that a django. The code in Jordan's answer didn't work for me. I posted my own question about this, which I believe I've now solved.

Learn more. Asked 9 years, 9 months ago. Active 5 years, 6 months ago. Viewed 33k times. I have the following models: class Bill models. Hixi Hixi 1 1 gold badge 8 8 silver badges 8 8 bronze badges. Active Oldest Votes. Key points is: generated FormSet s within forms. Sergey Lyapustin 1, 15 15 silver badges 25 25 bronze badges. Jordan Reiter Jordan Reiter I think it'd be self.

django inline formset class based view

I think overriding post would be the cleaner solution. A little late to the party, but this has worked for me and orokusaki is right about self. The example leads to the formsets being recreated when the form is invalid see self.

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Class Based Views Part 2: ListView and FormView

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