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PODynamic form with ajax
 

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    <p>I have a form for my Item model for it's :make attribute. Based on the option chosen it should render the corresponding Products that share the same :item_make value. So if you select "Hoodies" on the first form, the different hooded sweatshirts available would show on the second. Any help would be greatly appreciated.</p> <p>quote</p> <pre><code>attr_accessible :items_attributes has_many :items </code></pre> <p>product</p> <pre><code>attr_accessible :name, :item_make has_many :items </code></pre> <p>item</p> <pre><code>attr_accessible :make, :product_id belongs_to :quote belongs_to :product </code></pre> <p>the two inputs:(inside nested quote form -> Item form)</p> <pre><code>&lt;%= f.input :make, collection: clothing_types, label: 'Thread Type', remote: true, url: url_for(controller: 'quotes', action: 'update_products'), type: 'json', input_html: {class: "select_make"} %&gt; &lt;%= f.input :product_id, input_html: {class: "select_product"} %&gt; </code></pre> <p>Currently @products is the list of all products.</p> <p>quotes_Controller:</p> <pre><code>def new @quote = Quote.new @quote.items.build @item = Item.new @products = Product.all end def update_products @make = params[:make] @subproducts = Product.where(:item_make =&gt; @make).all render json: @subproducts.map{|x| [x.id, x.name]} end </code></pre> <p>**EDIT:**Application.js</p> <pre><code>$(document).on('change', '.select_make', function() { $.ajax({ type: 'GET', url: "/quotes/update_products", success: function(data) { if (data.content == 'None') { $('.select_product').empty(); $('.select_product').append( $('&lt;option&gt;No make provided!&lt;/option&gt;')); } else $('.select_product').empty(); $('.selecT_product').append(); //unfinished } }); }); </code></pre> <p>I've tried using different variations of the jquery here <a href="https://stackoverflow.com/questions/6863990/ruby-on-rails-drop-down-box-on-change-event">Ruby on Rails - drop down box on change event</a> but haven't been able to get it to work yet.</p> <p>If anyone could enlighten me on the javascript needed to do this, that would be awesome</p>
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    1. COYou shared none of Your JS/Coffescript code, start with that. Also it's not clear how Your models to each other, it is important if You want to use mass-assignment with nested attributes.
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      1. USEdgars Jekabsons
    2. CO@EdgarsJekabsons I added the models and javascript code. What I would like to do is render or append subproducts to the .select_product class, or learn of any better way to do it.
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