Users can like posts feature (wip)

app/helpers/posts_helper.rb

@@ -2,4 +2,8 @@ module PostsHelper
   def liked_by?(post, _user_id)
     post.likes.exists?(user_id: current_user.id)
   end
+
+  def current_user_like(post)
+    post.likes.find_by(user_id: current_user.id)
+  end
 end

app/views/posts/index.html.erb

@@ -6,14 +6,8 @@
       <div class="post">
         <h2><%= post.title %></h2>
         <p><%= post.content %></p>
-        <p>This post has <%= post.likes.count %>
-          <%= pluralize(post.likes.count, "like") %>!
-        </p>
-        <% if liked_by?(post, current_user) %>
-          <%= render "posts/partials/unlike_button", post: @post %>
-        <% else %>
-          <%= render "posts/partials/like_button", locals: {post: @post} %>
-        <% end %>
+        <p>This post has <%= pluralize(post.likes.count, "like") %>! </p>
+        <%= render "posts/partials/like_button", post: post %>
         <p>Posted by: <%= post.user.name %></p>
       </div>
     <% end %>

app/views/posts/partials/_like_button.html.erb

@@ -1 +1,10 @@
-<p> like button goes here </p>
+<% if liked_by?(post, current_user) %>
+  <p> <%= form_with model: current_user_like(post), url: post_like_path(post, current_user_like(post)), method: :delete, class: 'like-form' do |f| %>
+      <%= f.submit 'Unlike', class: 'btn btn-danger unlike-button' %>
+    <% end %></p>
+<% else %>
+  <p> <%= form_with model: Like.new, url: post_likes_path(post), method: :post, class: 'like-form' do |f| %>
+      <%= f.hidden_field :post_id, value: post.id %>
+      <%= f.submit 'Like', class: 'btn btn-primary like-button' %>
+    <% end %> </p>
+<% end %>