Django inline formset

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.

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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.

Useful Inline Form Set Options in Django (Part 2 of 2)

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.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Depending on a value in the parent form, I need to check that the right number of child forms has been submitted.

[Django]Formsetを使った実装方法まとめ

I know I can access the parent form using self. FOO when overriding BaseInlineFormSet and again this works fine, but I can't find a way to determine how many actual forms have been submitted and vitally have data in them.

In the formset clean method, self. So you can do:. Thank you Daniel for pointing me in the right direction. I achieved what I needed by overriding baseinlineformset and doing the following in the clean method:.

I also found that I also needed to remove any forms being deleted during the same post from the form count. Learn more. Django inline formset Ask Question.

Asked 1 year, 4 months ago. Active 1 year, 3 months ago. Viewed times. I have a parent and several child forms using an inline formset.

It works fine. Anyone know how? Many thanks. Please add some code like your forms. Active Oldest Votes.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

I want to automatically add new forms to a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form which is part of the formset to the page. What the selector should do is pass it what it should duplicate. In this case, I pass it div. The :last part of it is important because the selector is also used to determine what the new form will be inserted after.

More than likely you'd want it at the end of the rest of the forms. This function is particularly helpful to me because the way it is setup it allows me to use it throughout the app when I want to provide more forms in a formset, and doesn't make me need to have a hidden "template" form to duplicate as long as I pass it the formset name and the format in which the forms are laid out. Hope it helps. I've posted a snippet from an app I worked on a while back.

Similar to Paolo's, but also allows you delete forms. An issue that may be a deal breaker for some. This is not a defect with Paolo's script at all; but a fact of life with dom manipulation and browser's cache. I suppose one could store the values of the form in the session and have some ajax magic when the formset loads to create the elements again and reload the values from the session; but depending on how anal you want to be about the same user and multiple instances of the form this may become very complicated.

They both make use of jQuery and are django-specific. What I described above is what I would do in your situation. One option would be to create a formset with every possible form, but initially set the unrequired forms to hidden - ie, display: none. When it's necessary to display a form, set it's css display to block or whatever is appropriate.

Without know more details of what your "Ajax" is doing, it's hard to give a more detailed response. Another cloneMore version, which allows for selective sanitization of fields.

Use it when you need to prevent several fields from being erased. There is a small issue with the cloneMore function.

Since it's also cleaning the value of the django auto-generated hidden fields, it causes django to complain if you try to save a formset with more than one empty form. How would you make a dynamic formset in Django? For the coders out there who are hunting resources to understand the above solutions a little better:. Django Dynamic Formsets. After reading the above link, the Django documentation and previous solutions should make a lot more sense. Django Formset Documentation.

As a quick summary of what I was getting confused by: The Management Form contains an overview of the forms within.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? This thing is old now module 'django. Skip to content.

django inline formset

Instantly share code, notes, and snippets. Code Revisions 3 Stars 47 Forks Embed What would you like to do? Embed Embed this gist in your website. Share Copy sharable link for this gist. Learn more about clone URLs. Download ZIP. This comment has been minimized. Sign in to view. Copy link Quote reply. You have save my life.

django inline formset

Why isn't this a more obvious process? What is that mean? 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?

Dynamically adding forms to a Django FormSet with an add button using jQuery

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. POST :.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I want to automatically add new forms to a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form which is part of the formset to the page.

What the selector should do is pass it what it should duplicate.

django inline formset

In this case, I pass it div. The :last part of it is important because the selector is also used to determine what the new form will be inserted after. More than likely you'd want it at the end of the rest of the forms. This function is particularly helpful to me because the way it is setup it allows me to use it throughout the app when I want to provide more forms in a formset, and doesn't make me need to have a hidden "template" form to duplicate as long as I pass it the formset name and the format in which the forms are laid out.

Hope it helps. I've posted a snippet from an app I worked on a while back. Similar to Paolo's, but also allows you delete forms. An issue that may be a deal breaker for some. This is not a defect with Paolo's script at all; but a fact of life with dom manipulation and browser's cache. I suppose one could store the values of the form in the session and have some ajax magic when the formset loads to create the elements again and reload the values from the session; but depending on how anal you want to be about the same user and multiple instances of the form this may become very complicated.

They both make use of jQuery and are django-specific. What I described above is what I would do in your situation. One option would be to create a formset with every possible form, but initially set the unrequired forms to hidden - ie, display: none. When it's necessary to display a form, set it's css display to block or whatever is appropriate. Without know more details of what your "Ajax" is doing, it's hard to give a more detailed response. Another cloneMore version, which allows for selective sanitization of fields.Of course, you can still use a helper, otherwise there would be nothing crispy in this.

This helper is quite easy to follow. There are two ways you can add submit buttons to a formset. Using FormHelper. Or you can set FormHelper. Finally, model formsets and inline formsets are rendered exactly the same as formsets, the only difference is how you build them in your Django code.

Rendering any kind of formset with crispy injects some extra context in the layout rendering so that you can do things like:. Basically you can access a forloop Django node, as if you were rendering your formsets forms using a for loop. FormHelper has an attribute named template that can be used to specify a custom template for rendering a form or formset, in this case a formset. Obviously when we specify a template attribute, we are making that helper only usable with forms or formsets.

If you think what you are missing would be valuable to others, then please submit a pull request at github. Most likely you will want to do:. Where every form has a helper attribute from which crispy will grab the layout.

Read the Docs v: latest Versions latest stable 1.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. What's the Django way of presenting a formset horizontally, i. I need the form fields in table rows one row per form and the labels should be on top.

I don't see anything out of the box. Is this discouraged for some reason? I should clarify that I actually want a table, because of a UI table widget I'll be using. And that table should have the labels in the. I suggest using form. Edit: To address your need for a table, you'd like want to do something like this It's difficult to put all of these forms in a table, and still have valid HTML.

Learn more. Horizontal per-row forms in a Django formset Ask Question. Asked 10 years, 2 months ago. Active 1 year, 4 months ago. Viewed 15k times. Active Oldest Votes.

Dave Dave 2, 2 2 gold badges 22 22 silver badges 20 20 bronze badges. Yes, this does it. It is a verbose thing to put in your templates. I am really surprised that something as mature as Django doesn't have this out of the box.

I ended up doing the same. And because I have a page with multiple such forms I ended up doing using the with tag to parameterize it. See my clarification please. I actually need a table. I think you're going to have to go with the customization in your template, then, instead of using the methods that automatically generate HTML.

I see your update. I basically need a table representation of a recordset. Find it surprising that I couldn't find this googling. Okay, you'd just want to go over the elements the first time and print only the labels, as th s in the theadthen print the rest of your forms.

But then take care of the errors too, etc. It becomes the snippet that Dave here posted. I appreciate your answers though. Being new at Django, I appreciate any ideas.


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