Nested files form with delete check-boxes

[Walter Davis]

Can anyone point out an example of a nested form with file inputs and the _delete checkboxes needed for Carrierwave?

Here's the setup:

class Candidate < ActiveRecord::Base

  has_many :documents

  accepts_nested_attributes_for :documents, reject_if: :all_blank, allow_destroy: true

end

class Document < ActiveRecord::Base

  belongs_to :candidate

  mount_uploader :file, DocumentUploader

  def label

    return style.titleize unless style == 'CV'

    'CV'

  end

  def file_name

    file.to_s.split('/').last

  end

end

class CandidatesController < ApplicationController

  def edit

    @documents = []

    Candidate::STYLES.each do |style|

      @documents += @candidate.documents.where( style: style ) || @candidate.documents.build( style: style )

    end

  end

end

Now in my view, I am trying to set up the correct check box to delete the uploaded file, but I am getting errors when I try to do this with either the simple form "input" helper or the Rails form builder "check_box" helper. Do I need to step back and use check_box_tag to do this?

Walter

[Walter Davis]

And I forgot the view code:

<%= simple_form_for(@candidate) do |f| %>

<%= f.error_notification %>

<div class="form-inputs">

  <%= f.input :first_name %>

  <%= f.input :last_name %>

  <%= f.simple_fields_for :documents, @documents.to_a do |d| %>

  <div class="file-field">

    <%= d.input :file, label: d.object.label, label_html: {class: 'file'} %>

    <%= d.check_box :_delete, label: 'Remove', label_html: {class: 'delete check_box'} %>

    <%= d.hint d.object.file_name.to_s %>

    <%= d.hidden_field :style, class: 'style' %>

    <%= d.hidden_field :id, class: 'id' %>

  </div>

  <p class="add"><a class="btn">Add</a></p>

  <%- end -%>

</div>

<div class="form-actions">

  <%= f.button :submit %>

</div>

<% end %>

 

Walter

[walterda...@gmail.com]

> On Nov 27, 2015, at 3:06 PM, Walter Davis <walterda...@gmail.com> wrote:
>
>
>
> On Friday, November 27, 2015 at 3:05:12 PM UTC-5, Walter Davis wrote:
> Can anyone point out an example of a nested form with file inputs and the _delete checkboxes needed for Carrierwave?
>
> Here's the setup:
>

> [snip]

> <%= simple_form_for(@candidate) do |f| %>
> <%= f.error_notification %>
>
> <div class="form-inputs">
> <%= f.input :first_name %>
> <%= f.input :last_name %>
> <%= f.simple_fields_for :documents, @documents.to_a do |d| %>
> <div class="file-field">
> <%= d.input :file, label: d.object.label, label_html: {class: 'file'} %>
> <%= d.check_box :_delete, label: 'Remove', label_html: {class: 'delete check_box'} %>
> <%= d.hint d.object.file_name.to_s %>
> <%= d.hidden_field :style, class: 'style' %>
> <%= d.hidden_field :id, class: 'id' %>
> </div>
> <p class="add"><a class="btn">Add</a></p>
> <%- end -%>
> </div>
>
> <div class="form-actions">
> <%= f.button :submit %>
> </div>
> <% end %>
>

The problem was that I should have used :_destroy, not :_delete as my key. Posting this for future me and whomever else misses this bit.

Walter