Get count of likes on a post in Rails - html

Question

In my rails application, I am using the gem, socialization.
I just can't figure out how to display the amount of likes!
My post controller :
class PostsController < ApplicationController
# GET /posts
# GET /posts.json
def index
#posts = Post.all(:order => "created_at DESC")
#posts_not_signed_in = Post.all(:order => "created_at DESC")
#post = Post.new
#users = User.all(:order => "created_at DESC")
respond_to do |format|
format.html # index.html.erb
format.json { render json: #posts }
end
end
def like
post.liked_by current_user
redirect_to root_path
end
# GET /posts/1
# GET /posts/1.json
def show
redirect_to posts_path
end
# GET /posts/new
# GET /posts/new.json
def new
#post = Post.new
respond_to do |format|
format.html # new.html.erb
format.json { render json: #post }
end
end
# GET /posts/1/edit
def edit
#post = Post.find(params[:id])
end
# POST /posts
# POST /posts.json
def create
#post = current_user.posts.build(params[:post])
respond_to do |format|
if #post.save
format.html { redirect_to #post, notice: 'Post was successfully created.' }
format.json { render json: #post, status: :created, location: #post }
else
format.html { render action: "new" }
format.json { render json: #post.errors, status: :unprocessable_entity }
end
end
end
# PUT /posts/1
# PUT /posts/1.json
def update
#post = Post.find(params[:id])
respond_to do |format|
if #post.update_attributes(params[:post])
format.html { redirect_to #post, notice: 'Post was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: "edit" }
format.json { render json: #post.errors, status: :unprocessable_entity }
end
end
end
# DELETE /posts/1
# DELETE /posts/1.json
def destroy
#post = Post.find(params[:id])
#post.destroy
respond_to do |format|
format.html { redirect_to posts_url }
format.json { head :no_content }
end
end
end
My user controller :
class UsersController < ApplicationController
def index
#users = User.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #users }
end
end
def show
#user = User.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => #user }
end
end
def follow
#user = User.find(params[:id])
current_user.toggle_follow!(params[:id])
redirect_to root_path
end
def unfollow
#user = User.find(params[:id])
current_user.stop_following(#user)
redirect_to root_path
end
end
My post model :
class Post < ActiveRecord::Base
attr_accessible :status, :author, :username, :id, :user_id, :user, :website, :bio, :skype, :dob, :age, :email, :motto, :follower, :followable, :votes
belongs_to :user
has_many :like
has_many :likes
validates :status, :presence => true
acts_as_likeable
acts_as_votable
end
My user model :
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :token_authenticatable, :confirmable,
# :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
# Setup accessible (or protected) attributes for your model
attr_accessible :email, :password, :password_confirmation, :remember_me, :username, :user_id, :id, :website, :bio, :skype, :dob, :age, :motto, :follower, :followable
has_many :posts
acts_as_liker
# attr_accessible :title, :body
end
My view :
<% if user_signed_in? %>
<h1 id="welcome" class="nuvo">Welcome <%= current_user.username %>!</h1>
<% else %>
<h1 id="welcome" class="nuvo">Log-In to make some posts!</h1>
<% end%>
<div class="follow-row">
<div class="titan-users nuvo"><h2>BoomIt Users</h2></div>
<div class="user-row nuvo"><%= link_to 'coreypizzle', user_path(1) %> - <%= link_to 'BoomBoard', dashboard_path(1) %></div>
<% #users.each do |user| %>
<div class="user-row nuvo"><%= link_to user.username, user_path(user.id) %> - <%= link_to 'BoomBoard', dashboard_path(user.id) %></div>
<% end %>
</div>
<div class="statuses">
<% if user_signed_in? %><div class="status-form"><%= render 'form' %></div><% end %>
<% if user_signed_in? %>
<% #posts.each do |post| %>
<div class="post">
<div class="tstamp">
<%= image_tag avatar_url_small(post.user), :class => 'gravatar' %>
<strong>Posted <%= time_ago_in_words(post.created_at) %> ago by <%= post.user.username %></strong>
</div>
<div class="status"><%= post.status %></div>
<div class="likearea"><%= link_to 'BoomThis', 'posts/like', :class => 'wtxt nuvo' %> - <%= #post.likes.size %></div>
</div>
<% end %>
<% else %>
<% #posts_not_signed_in.each do |post| %>
<div class="post">
<div class="tstamp">
<%= image_tag avatar_url_small(post.user), :class => 'gravatar' %>
<strong>Posted <%= time_ago_in_words(post.created_at) %> ago by <%= post.user.username %></strong>
</div>
<div class="status"><%= post.status %></div>
</div>
<% end %>
<% end %>
</div>
Any help would be greatly appreciated!

Answer 1

First
has_many :like
has_many :likes
I think you mean just
has_many :likes
So you would do
#likes_num = #post.likes.count
Which will create a query for the number of likes, and not the actually likes themselves.

Answer 2

Old question, but i couldn't find this either.
The correct method call appears to be:
post.likers(User).count
I'm still unsure why you have to pass the model name in, perhaps so you can ask for the number of likes from that class of liker?
This works though.