Ruby on Rails #80 Dynamic Forms with Turbo (not JS approach)

Learn how to add fields to a form dynamically based on your selection in previous fields
Episode Source Code: github.com/corsego/80-turbo-d...
0:00 Intro
1:05 Scaffold Posts
2:05 Conditional Validations. Enum
4:25 Conditionally Display Passcode field
5:51 Custom Form Button
9:07 Stimulus clicker
13:28 Turbo Frame
15:03 Turbo Stream inside Frame
16:52 Summary

[@andreasandres]

bro, i think you're a modern version from ryan bates or even better.. love your tutorial, i learned much from here..

[@SupeRails]

Hello Andre! Thanks a lot! I’m trying my best 🤠

[@mariners_platter]

I enjoy your content! Thanks so much!

[@cmthimmaiah]

Thank you,very clearly explained

[@diegogarciaspino6048]

very clear, strong base, loved

[@ledockol]

Дуже цікаво. Деякі речі, наприклад вбудований турбо стрим, це взагалі щось нове! Дуже за це дякую) Разом з тим, якщо вже використовуємо стімулус, то додаткова кнопка форми зайва. Додати ще одно value і сформувати запит безпосередньо у стімулус контролері, у заголовок додати очікувану відповідь у турбо стрим форматі. Одночасно цим же контролером можно контролювати зміст парамс, щоб не виводити зайвого у строчці браузера. Ярослав, ще раз дякую! Подивився як чашку гарної кави випив) Слава Україні!

[@SupeRails]

Вітаю! Чи міг би ти показати що ти маєш на увазі у форматі gist? :)

[@ledockol]

@@SupeRails Звісно.

[@danielfonsecadasilva396]

I love you! thanks

[@MarkWeiser]

Great tutorial, but I hit 2 issues: 1. simple_form does not let me create a button with get action on form (might have to bypass simple_form) 2. i got around the first problem by creating a submit button with a different commit parameter, and catch the submission in the create controller method: " if params[:commit].eql? 'validate' return render :new end" however the submit will not be invoked if html 5 is validating required fields Any ideas?

[@hass89]

How can this be used with nested form fields (accepts_nested_attributes_for)?

[@SupeRails]

if you want to "add/remove" nested fields, you would need something else. like gem vanilla_nested, or some other solution

[@1990EAM]

How do you show validation errors using turbo?

[@ShlomoGoldenberg777]

Is there any way to do this without turbo?

[@germancruz6484]

what's the shortcut to back to the terminal

[@SupeRails]

alt+tab? did I understand your question correctly? 😄

[@baotranphi1238]

Can u make a video about active storage and presigned url s3 upload?

[@ddd2283]

Hi Yaroslav! Can you explain turbo + action_cabe integration in some video. Thanks!

[@SupeRails]

I wish I could 😂 I'll put it on the backlog +

[@ddd2283]

@@SupeRails I saw it in book "modern frontend for ruby on rails" but your english more undestanable for me )))). In this book author show some intresting thing as "stimulate". I think you can explain better )))

[@ddd2283]

I was wrong about naming this technology , I mean StimulusReflex , this example official kzbin.info/www/bejne/moHdp2WnqM9ogpo

[@ddd2283]

Anyway , still waiting your awesome explanation😀

[@SupeRails]

@@ddd2283 oh, got it! I'm aware of stimulus reflex, and I know that it can do similar things as hotwire/turbo. However I don't have enough practical experience with it to be able to cover it in a good video at the moment. SR sure is on my TODO list for when I know it well enough :)

[@pftg]

It's more like an hack! You can avoid hidden button click at all.

[@SupeRails]

Hey Paul! I wouldn't call it a hack. It's quite a reliable approach, leveraging only normal http requests and Hotwire

[@clementblgr6498]

Dont forget to enter this command after creating a stimulus controller : ./bin/rails stimulus:manifest:update

[@MatthewKennedyUK]

How do you deal with the edit side and persisting the params? Maybe use @post.assign_attributes(post_params)

[@SupeRails]

interesting question. in this scenario where “new” and “edit” share the same form, I suppose it’s still ok to submit the “form.button” to “new_post_path”. If I create a record and open the edit form, everything seems to be working ok

[@SupeRails]

Ok, I see an issue: when you go to "edit" and refresh the page, the selection can look "broken". I will show my solution in episode #82

[@SupeRails]

Ok now I really understand where you were going. assign_attirbutes seems to be a good solution. I've used it today for a PR at work where I had to partially update an "Edit" form and worked very well