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PORails 3 and Ajax interaction
 

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  1. PORails 3 and Ajax interaction
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    <p>I'm a beginner in ruby on rails and I was practicing Ajax but unfortunately I can't seem to get my ajax to work. I'm trying to Ajaxify my delete in the scaffold.</p> <p>Here's my controller:</p> <pre><code>class PlantsController &lt; ApplicationController # GET /plants # GET /plants.json def index @plants = Plant.all respond_to do |format| format.html #index.html.erb format.json { render json: @plants } end end # GET /plants/1 # GET /plants/1.json def show @plant = Plant.find(params[:id]) respond_to do |format| format.html # show.html.erb format.json { render json: @plant } end end # GET /plants/new # GET /plants/new.json def new @plant = Plant.new respond_to do |format| format.html # new.html.erb format.json { render json: @plant } end end # GET /plants/1/edit def edit @plant = Plant.find(params[:id]) end # POST /plants # POST /plants.json def create @plant = Plant.new(params[:plant]) respond_to do |format| if @plant.save format.html { redirect_to @plant, notice: 'Plant was successfully created.' } format.json { render json: @plant, status: :created, location: @plant } else format.html { render action: "new" } format.json { render json: @plant.errors, status: :unprocessable_entity } end end end # PUT /plants/1 # PUT /plants/1.json def update @plant = Plant.find(params[:id]) respond_to do |format| if @plant.update_attributes(params[:plant]) format.html { redirect_to @plant, notice: 'Plant was successfully updated.' } format.json { head :no_content } else format.html { render action: "edit" } format.json { render json: @plant.errors, status: :unprocessable_entity } end end end # DELETE /plants/1 # DELETE /plants/1.json def destroy # binding.pry @plant = Plant.find(params[:id]) @plant.destroy respond_to do |format| format.html { redirect_to plants_url } format.js format.json { head :no_content } end end end </code></pre> <p>And here's the view for it:</p> <pre><code>&lt;h1&gt;Listing plants&lt;/h1&gt; &lt;table class="show"&gt; &lt;tr&gt; &lt;th&gt;Name&lt;/th&gt; &lt;th&gt;Comment&lt;/th&gt; &lt;th&gt;&lt;/th&gt; &lt;th&gt;&lt;/th&gt; &lt;th&gt;&lt;/th&gt; &lt;/tr&gt; &lt;%= render "plants/plant" %&gt; &lt;/table&gt; &lt;br /&gt; &lt;%= link_to 'New Plant', new_plant_path %&gt; </code></pre> <p>here's my partial:</p> <pre><code>&lt;% @plants.each do |plant| %&gt; &lt;tr&gt; &lt;td&gt;&lt;%= plant.name %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= plant.comment %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= link_to 'Show', plant %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= link_to 'Edit', edit_plant_path(plant) %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= link_to 'Destroy', plant, confirm: 'Are you sure?', :method =&gt; :delete, :remote =&gt; true %&gt;&lt;/td&gt; &lt;/tr&gt; &lt;% end %&gt; </code></pre> <p>and lastly, here's the supposed destroy.js.erb that would refresh the DOM:</p> <pre><code>$('.show').html("&lt;%= render @plant %&gt;"); </code></pre> <p>Anyone can shine a light on this please?</p> <p>Additional Info:</p> <p>The thing is, when I click the <code>Destroy</code> link... The record is being deleted, but the DOM isn't rendering and I have to refresh to see the changes :(</p>
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    1. COI think your controller needs a "format.js" that is called on "Destroy". I'm new to Rails too, but I'd try: respond_to do |format| format.html # new.html.erb format.json { render json: @plant } end
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    2. COHey friend, I have the 'format.js', just scroll down a bit and you'll see it's define in my controller :)
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    3. COOh! I didn't notice the scrollbar. Sorry, not enough sleep :]
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