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POWhat's the rails way to load other models collections for new, edit update and create actions?
 

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  1. POWhat's the rails way to load other models collections for new, edit update and create actions?
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    <p>How is the best way to load Category model, for ProductController in new, edit update and create actions </p> <p>Product has categories collection</p> <pre><code>class Product &lt; ActiveRecord::Base has_many :categories end </code></pre> <p>Always for new, edit, create and update actions, I need to load the categories collection to populate a check_box_tag list</p> <p>The "baby steps" for this situation is:</p> <pre><code>class Admin::ProductsController &lt; Admin::AdminApplicationController def new @product = Product.new @categories = Category.all end def edit @product = Product.find(params[:id]) @categories = Category.all end def create @product = Product.new(params[:product]) if @product.save flash[:notice] = 'Product was successfully created' redirect_to edit_admin_product_path(@product) else @categories = Category.all render :new end end def update @product = Product.find(params[:id]) @product.update_attributes(params[:product]) if @product.save flash[:notice] = 'Product was successfully updated' redirect_to edit_admin_product_path(@product) else @categories = Category.all render :edit end end end </code></pre> <p>I don't want to load always Category.all in different situations for same purpose </p> <p>Options:</p> <p>First - load categories over the view: </p> <pre><code>&lt;% Category.all.each do |cat| %&gt; &lt;li&gt; &lt;%= check_box_tag .... %&gt; &lt;/li&gt; &lt;% end %&gt; </code></pre> <p>:/</p> <p>Second - load categories over the ProductsHelper :</p> <pre><code>module ProductsHelper def categories Category.all end end </code></pre> <p>:/</p> <p>"Third" - Exist a filter like 'before_render'?</p> <pre><code>class Admin::ProductsController &lt; Admin::AdminApplicationController before_render :load_categories :edit, :new def load_categories @categories = Category.all end end </code></pre> <p>:D :D :D</p> <p>What's the rails way for this situations? </p> <p>Best Regards, Pablo Cantero</p>
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    1. COSounds like a duplicate of my question: http://stackoverflow.com/questions/2179423/how-should-i-structure-controller-actions-that-share-templates
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      1. USStéphan Kochen
    2. COIt's not a good approach for my situation. Where after ".save", I send redirect_to to an another action, if I use before_filter and ".save" returns true, the fetch_all_users is called unnecessary
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      1. USPablo Cantero
 

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