Usable with form_with?

[trevordixon]

I'm following http://guides.rubyonrails.org/getting_started.html. This simple form doesn't work with trix_editor, though it does with text_area. Error: "undefined method `to_key' for nil:NilClass. Did you mean? to_query"

<%= form_with scope: :job, url: jobs_path, local: true do |form| %>
  <p>
    <%= form.label :description %><br>
    <%= form.trix_editor :description %>
  </p>
<% end %>

The stack trace points to https://github.com/rails/rails/blob/master/actionview/lib/action_view/record_identifier.rb#L108.

I think it's trying to generate an id and class from an ActiveRecord, but the record is nil. Maybe because form_with is new, and trix_editor doesn't work with it yet?

(I beg your forgiveness in advance if this is a stupid question. I'm only about a day into learning Ruby and Rails.)

[trevordixon]

Using model: Job.new instead of scope: :job solved my immediate problem and seems to confirm that trix_editor doesn't work exactly like other form helpers with form_with.

[pbmarcano]

Another option you may have is to add the trix-editor underneath a hidden field with the input attribute matching the hidden field's id.

<%= form_with scope: :job, url: jobs_path, local: true do |form| %>
  <p>
    <%= form.label :description %><br>
    <%= form.hidden_field :description, id: :job_description %>
    <trix-editor input="job_description"></trix-editor>
  </p>
<% end %>

Looks like trix will change the content of the hidden_field in real time, and submit as you'd expect it to.

[Japestrale]

Building off the workaround suggested by @pbmarcano, as of Rails 5.2, form_with will automatically generate ids so you don't need to manually specify an id on the hidden field