Episode

[@Ivanthebrony]

You saved my life, excellent video

[@R2r_1337]

Hey, awesome content! Those nested forms can be a real head scratcher for new devs, I was struggling with it very much However, I think that when you are whitelisting params in #todo_list_params it is better to always whitelist them explicitly, not using this obscure #map trick. Newbie developer can spot it and could probably want to use it with models with admin fields, etc, therefore exposing entire resource for manipulations.

[@jamespage4784]

How would you adapt this to work with another level of nesting?

[@muhammadmehdi5789]

ActionView::MissingTemplate in Crms#new it gives me error on render line, can you please help to get rid off this error? Extracted source (around line #6): id = new_object.object_id fields = form.fields_for(association, new_object, child_index: id) do |builder| render(:association.to_s.singularize, form: builder) end link_to(name, '#', class: "add_fields " + args[:class], data: {id: id, fields: fields.gsub(" ", "")}) end

[@taab84]

how to use json data for child instead of a separate model? for exemple for a client who have one or multiple phones

[@DriftingRuby]

+taab84 I would use serialized attributes and declare the attribute as a Jain. Postgres and MySQL 5.7 support the json datatype.

[@aram2548]

Hello, Im not using simple_form, but I tried your code but nothing happens here when I click on add. Do you know what could it be?

[@aram2548]

Thanks for the reply. My project is here github.com/aramsm/miniapp-autoseg When I click on add nothing happens

[@DriftingRuby]

Your JS is appending the new form elements to $('.fields') but you do not have the class "fields" in your app so it's not getting added anywhere.

[@aram2548]

That worked, but now its creating duplicated fields, but that must be easy to track and fix. Thanks for the awesome tutorial.

[@archanam.p6018]

hello how to use the nested form datepicker? Thanks in advance

[@frmoudoute]

Archana, could you find a solution ?

[@R2r_1337]

and your #link_to_add_field helper is not working if you don't pass any css class, args[:class] is nil in this case and it throws an error saying that you can't convert nil intro string insted of link_to(name, '#', class: 'add_fields ' + args[:class] you should use link_to(name, '#', class: 'add_fields ' + args.fetch(:class, "") therefore making class optional

[@muhammadmehdi5789]

ActionView::MissingTemplate in Crms#new it gives me error on render line, can you please help to get rid off this error? Extracted source (around line #6): id = new_object.object_id fields = form.fields_for(association, new_object, child_index: id) do |builder| render(:association.to_s.singularize, form: builder) end link_to(name, '#', class: "add_fields " + args[:class], data: {id: id, fields: fields.gsub(" ", "")}) end

[@trailblazer_nomad]

Nice hax rendering the form to 'data' attribute ;)

[@navroopsingh1]

is any gem installed for running this?

[@jaimeandres1041]

yes check this, github.com/nathanvda/cocoon

[@tatawhillman3783]

So many thing cramped into one video. A better tutorial of splitting this into several videos and really explaining the concepts will go a long way to help beginner rails users

[@slim_mike]

this seems like a remake of this railscast episode kzbin.info/www/bejne/l563Y2qJm7Obga8