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PORails: Ajax for Like Button and Updating Like Count
 

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  1. PORails: Ajax for Like Button and Updating Like Count
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    <p>I am able to update the like and unlike button via ajax, but I am not able to update the like count.</p> <p>Post <code>has_many</code> likes</p> <p>likes_controller.rb</p> <pre><code> def create @like = Like.new(:post_id =&gt; params[:post_to_be_liked]) if @like.save respond_to do |format| format.html {redirect_to :back, notice: "Liked!"} format.js end end end </code></pre> <p>view.html.erb</p> <pre><code>&lt;% @post = user.posts.first %&gt; &lt;div id="send_like_for_&lt;%= @post.id %&gt;"&gt; &lt;% if @post.is_liked?(@post, current_user)%&gt; &lt;%= render 'unlike'%&gt; &lt;%else%&gt; &lt;%= render 'like'%&gt; &lt;%end%&gt; &lt;/div&gt; &lt;div id="liked_&lt;%= @post.id %&gt;" %&gt; &lt;%= render 'liked_users'%&gt; &lt;/div&gt; </code></pre> <p>create.js.erb</p> <pre><code>$("#send_like_for_&lt;%= params[:post_to_be_liked]%&gt;").html("&lt;%= escape_javascript(render('users/unlike')) %&gt;") $("#liked_&lt;%= params[:post_to_be_liked]%&gt;").html("&lt;%= escape_javascript(render('users/liked_users')) %&gt;") </code></pre> <p>_like.html.erb</p> <pre><code>&lt;%= link_to "LIKE", likes_path(:post_to_be_liked =&gt; @post.id), remote: true, :method=&gt;:post %&gt; </code></pre> <p>_unlike.html.erb</p> <pre><code>&lt;span&gt; UNLIKE &lt;/span&gt; </code></pre> <p>_liked_users.html.erb</p> <pre><code>&lt;%= "#{@post.likes.length} like this" %&gt; </code></pre> <p>The like/unlike functionality works just fine and when someone likes the post the button changes to Unlike. But the like count doesn't increase.</p>
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    1. COYou have to update your '@post' object, because it contains the likes that are being stored earlier.
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    2. COHow exactly do I do that?
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      1. USpratski
 

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