Add event voting

Gemfile

@@ -23,6 +23,7 @@ gem 'omniauth-twitter'
 
 # Misc
 gem 'activeadmin', github: 'activeadmin/activeadmin'
+gem 'acts_as_votable', '~> 0.11.0'
 
 gem 'paperclip'
 gem 'acts-as-taggable-on'

Gemfile.lock

@@ -55,14 +55,15 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    acts-as-taggable-on (4.0.0)
-      activerecord (>= 4.0)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
-    annotate (2.7.2)
-      activerecord (>= 3.2, < 6.0)
-      rake (>= 10.4, < 13.0)
-    arbre (1.1.1)
+    add-event-voting
+    acts-as-taggable-on (3.4.4)
+      activerecord (>= 3.2, < 5)
+    acts_as_votable (0.11.0)
+    addressable (2.3.8)
+    annotate (2.6.5)
+      activerecord (>= 2.3.0)
+      rake (>= 0.8.7)
+    arbre (1.0.2)
       activesupport (>= 3.0.0)
     arel (6.0.4)
     ast (2.3.0)
@@ -382,6 +383,7 @@ DEPENDENCIES
   active_record-acts_as
   activeadmin!
   acts-as-taggable-on
+  acts_as_votable (~> 0.11.0)
   annotate
   bootstrap-sass (~> 3.3.3)
   bootstrap3-datetimepicker-rails (~> 4.14.30)

app/assets/javascripts/votes.js.coffee

@@ -0,0 +1,5 @@
+$ ->
+  $('.vote-container').on 'ajax:success', 'form.vote-form', (event, data) ->
+    form = event.target
+    container = form.closest('.vote-container')
+    container.innerHTML = data

app/assets/stylesheets/application.css.scss

@@ -28,6 +28,7 @@
 @import "pages";
 @import "people";
 @import "scaffolds";
+@import "votes";
 
 .font-heading { font-family: $font-heading; }
 .font-body { font-family: $font-body; }

app/assets/stylesheets/votes.css.scss

@@ -0,0 +1,8 @@
+.vote-header {
+  display: inline-block;
+  margin-right: 0.5em;
+}
+
+.vote-form {
+  display: inline-block;
+}

app/controllers/votes_controller.rb

@@ -0,0 +1,42 @@
+class VotesController < ApplicationController
+  before_filter :authenticate_user!
+  before_filter :set_votable
+  before_filter :ensure_votable
+
+  def create
+    @votable.liked_by current_user
+
+    if @votable.vote_registered?
+      render partial: 'votes/form', locals: { votable: @votable }
+    else
+      head :unprocessable_entity
+    end
+  end
+
+  def destroy
+    if current_user.voted_for?(@votable)
+      @votable.unvote_by current_user
+    end
+
+    render partial: 'votes/form', locals: { votable: @votable }
+  end
+
+  private
+
+  def set_votable
+    model = if params[:votable_type] == "Event"
+      Event
+    end
+
+    if model
+      @votable = model.find_by_id(params[:votable_id])
+    end
+  end
+
+  def ensure_votable
+    return head(:not_found) unless @votable
+
+    # Disallow users to vote on their own items:
+    head :forbidden if can_edit?(@votable)
+  end
+end

app/helpers/votes_helper.rb

@@ -0,0 +1,17 @@
+module VotesHelper
+  def upvote_button_class(votable)
+    if current_user.voted_up_on?(votable)
+      "btn bg-orange"
+    else
+      "btn bg-grey"
+    end
+  end
+
+  def upvote_form_method(votable)
+    if current_user.voted_up_on?(votable)
+      :delete
+    else
+      :post
+    end
+  end
+end

app/models/event.rb

@@ -11,6 +11,7 @@
 class Event < ActiveRecord::Base
   acts_as :topic
   acts_as_taggable
+  acts_as_votable
 
   has_and_belongs_to_many :people
   has_many :indications, as: :questionable

app/models/user.rb

@@ -27,6 +27,7 @@ class User < ActiveRecord::Base
   has_one :person
   has_many :topics
   accepts_nested_attributes_for :person
+  acts_as_voter
 
   scope :admins, -> { where('admin = ?', true).all }
 
@@ -53,5 +54,4 @@ def self.new_with_session(params, session)
       end
     end
   end
-
 end

app/views/events/show.html.erb

@@ -19,7 +19,7 @@
           <% end %>
 
           <%= link_to indications_path(id: @event.id, type: :event), :method => :post, :class => "btn" do %>
-              <span class="glyphicon glyphicon-thumbs-down"></span> Flag For Spam
+              <span class="glyphicon glyphicon-ban-circle"></span> Flag For Spam
           <% end %>
       <% end %>
     </div>
@@ -54,6 +54,11 @@
               </div>
             </div>
           </div>
+          <% if user_signed_in? && !can_edit?(@event) %>
+            <div class="vote-container">
+              <%= render partial: "votes/form", locals: { votable: @event } %>
+            </div>
+          <% end %>
           <%= render partial: 'topics/disqus' %>
         </div>
       </div>

app/views/news/show.html.erb

@@ -19,7 +19,7 @@
                 <% end %>
 
                 <%= link_to indications_path(id: @news.id, type: :news), :method => :post, :class => "btn" do %>
-                    <span class="glyphicon glyphicon-thumbs-down"></span> Flag For Spam
+                    <span class="glyphicon glyphicon-ban-circle"></span> Flag For Spam
                 <% end %>
             <% end %>
         </div>

app/views/resources/show.html.erb

@@ -17,7 +17,7 @@
                 <% end %>
 
                 <%= link_to indications_path(id: @resource.id, type: :resource), :method => :post, :class => "btn" do %>
-                    <span class="glyphicon glyphicon-thumbs-down"></span> Flag For Spam
+                    <span class="glyphicon glyphicon-ban-circle"></span> Flag For Spam
                 <% end %>
             <% end %>
         </div>

app/views/votes/_form.html.erb

@@ -0,0 +1,13 @@
+<span class="vote-header">Would you recommend this?</span>
+<%= form_tag votes_path, method: upvote_form_method(votable), class: "vote-form", "data-remote" => true do %>
+  <input type="hidden" name="votable_id" value="<%= votable.id %>">
+  <input type="hidden" name="votable_type" value="<%= votable.class.name %>">
+  <button type="submit" class="<%= upvote_button_class(votable) %>">
+    <span class="glyphicon glyphicon-thumbs-up"></span>
+    <% if current_user.voted_up_on?(votable) %>
+      Recommended
+    <% else %>
+      Recommend
+    <% end %>
+  </button>
+<% end %>

config/routes.rb

@@ -11,6 +11,12 @@
   resources :at_who
   resources :indications, only: :create
 
+  resources :votes, only: [:create] do
+    collection do
+      delete :destroy
+    end
+  end
+
   resources :people do
     collection do
       post :send_message

db/migrate/20171014222022_create_votes.rb

@@ -0,0 +1,17 @@
+class CreateVotes < ActiveRecord::Migration
+  def change
+    create_table :votes do |t|
+      t.references :votable, polymorphic: true
+      t.references :voter, polymorphic: true
+
+      t.boolean :vote_flag
+      t.string :vote_scope
+      t.integer :vote_weight
+
+      t.timestamps
+    end
+
+    add_index :votes, [:voter_id, :voter_type, :vote_scope]
+    add_index :votes, [:votable_id, :votable_type, :vote_scope]
+  end
+end

db/schema.rb

@@ -11,6 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
+ActiveRecord::Schema.define(version: 20171014222022) do
 
 ActiveRecord::Schema.define(version: 20171009191656) do
   create_table "events", force: true do |t|
@@ -174,4 +175,19 @@
   add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   add_index "users", ["uid"], name: "index_users_on_uid"
 
+  create_table "votes", force: true do |t|
+    t.integer  "votable_id"
+    t.string   "votable_type"
+    t.integer  "voter_id"
+    t.string   "voter_type"
+    t.boolean  "vote_flag"
+    t.string   "vote_scope"
+    t.integer  "vote_weight"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "votes", ["votable_id", "votable_type", "vote_scope"], name: "index_votes_on_votable_id_and_votable_type_and_vote_scope"
+  add_index "votes", ["voter_id", "voter_type", "vote_scope"], name: "index_votes_on_voter_id_and_voter_type_and_vote_scope"
+
 end

spec/controllers/votes_controller_spec.rb

@@ -0,0 +1,79 @@
+require 'spec_helper'
+
+describe VotesController, type: :controller do
+  render_views
+  let(:votable_owner) { FactoryGirl.create(:user) }
+  let(:votable) { FactoryGirl.create(:event, user: votable_owner) }
+
+  context "authenticated" do
+    let(:user) { FactoryGirl.create(:user) }
+    let(:my_votable) { FactoryGirl.create(:event, user: user) }
+
+    before(:each) do
+      request.env["devise.mapping"] = Devise.mappings[:user]
+      sign_in user
+    end
+
+    describe "#create" do
+      it "upvotes item the current user cannot edit" do
+        expect(user.voted_up_on?(votable)).to eq(false)
+
+        post :create, votable_type: votable.class.name, votable_id: votable.id
+
+        expect(response).to have_http_status(:ok)
+        expect(user.voted_up_on?(votable)).to eq(true)
+      end
+
+      it "does not upvote item the current user can edit" do
+        expect(user.voted_up_on?(my_votable)).to eq(false)
+
+        post :create, votable_type: my_votable.class.name, votable_id: my_votable.id
+
+        expect(response).to have_http_status(:forbidden)
+        expect(user.voted_up_on?(my_votable)).to eq(false)
+      end
+
+      it "404s when invalid votable type is given" do
+        post :create, votable_type: user.class.name, votable_id: user.id
+
+        expect(response).to have_http_status(:not_found)
+      end
+
+      it "404s when invalid votable ID is given" do
+        post :create, votable_type: votable.class.name, votable_id: votable.id + 100
+
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    describe "#destroy" do
+      it "removes an upvote" do
+        votable.liked_by user
+        expect(user.voted_for?(votable)).to eq(true)
+
+        delete :destroy, votable_type: votable.class.name, votable_id: votable.id
+
+        expect(response).to have_http_status(:ok)
+        expect(user.voted_for?(votable)).to eq(false)
+      end
+    end
+  end
+
+  context "unauthenticated" do
+    describe "#create" do
+      it "redirects" do
+        post :create, votable_type: votable.class.name, votable_id: votable.id
+
+        expect(response).to have_http_status(:redirect)
+      end
+    end
+
+    describe "#destroy" do
+      it "redirects" do
+        delete :destroy, votable_type: votable.class.name, votable_id: votable.id
+
+        expect(response).to have_http_status(:redirect)
+      end
+    end
+  end
+end

spec/models/indication_spec.rb

@@ -1,4 +1,4 @@
-require 'rails_helper'
+require 'spec_helper'
 
 RSpec.describe Indication, :type => :model do
   pending "add some examples to (or delete) #{__FILE__}"