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PODynamically add fields in rails with out nested attributes
 

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    <p>I am in the early stages of creating an app, and am just putting some basic code in place. Here is the current code...</p> <h1>app/views/cards/front.html.erb</h1> <pre><code>&lt;%= form_for(front_of_card_path) do |f| %&gt; &lt;%= f.fields_for :competency_templates do |builder| %&gt; &lt;%= render 'add_fields', f: builder %&gt; &lt;% end %&gt; &lt;%= link_to_add_fields "Add New Tag", f, :skill %&gt; &lt;% end %&gt; </code></pre> <h1>routes</h1> <pre><code> controller :cards do get '/front', action: 'front', as: 'front_of_card' post '/save', action: 'create', as: 'save_card' get '/my_contact_info', action: 'back', as: 'back_of_card' put '/save', action: 'update', as: 'save_card' get '/my_card', action: 'show', as: 'card' end </code></pre> <h1>controller</h1> <pre><code> def create @skill= Skill.new(params[:skill]) @tag = Tag.new(params[:tag]) @tag.save @skill.tag_id = @tag.id @skill.save redirect_to front_of_card_path, notice: 'Skill was successfully created.' #get user/session #save skills &amp; tags end </code></pre> <h1>cards.js.coffee</h1> <pre><code>jQuery -&gt; $('form').on 'click', '.remove_fields', (event) -&gt; $(this).prev('input[type=hidden]').val('1') $(this).closest('fieldset').hide() event.preventDefault() $('form').on 'click', '.add_fields', (event) -&gt; time = new Date().getTime() regexp = new RegExp($(this).data('id'), 'g') $(this).before($(this).data('fields').replace(regexp, time)) event.preventDefault() </code></pre> <h1>app_helper</h1> <pre><code>module ApplicationHelper def link_to_add_fields(name, f, association) new_object = f.object.send(association).klass.new id = new_object.object_id fields = f.fields_for(association, new_object, child_index: id) do |builder| render(association.to_s.singularize + "_fields", f: builder) end link_to(name, '#', class: "add_fields", data: {id: id, fields: fields.gsub("\n", "")}) end end </code></pre> <p>So right now this code gives me two text fields. One for the a tag name and another for a tag weight, and the controller inserts everything in the DB. I would like use some javascript to dynamically add as many of these tag/weight fields as I like. Everything I've found seems to focus on nested attributes. Any ideas appreciated.</p> <h1>Update</h1> <p>Added more code to flesh this out. The issue I am having is the 3rd variable I am passing in on this line...</p> <pre><code> &lt;%= link_to_add_fields "Add New Tag", f, :skill %&gt; </code></pre> <p>It does not like ':skill', but I am not sure what I should be passing here.</p>
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    1. COIf you're just using jQuery, then throw those fields into a div with a class, and when you click the button, find that element, and copy the html, then use `after()` to add another div with the copied html.
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