feat: votes functionality and validations

app/controllers/contests_controller.rb

@@ -78,13 +78,34 @@ def create_submission
     end
   end
 
-  # PUT /contests/:id/withdraw
+  # PUT /contests/:contest_id/withdraw/:submission_id
   def withdraw
     @submission = Submission.find(params[:submission_id])
     @submission.destroy!
     redirect_to contest_page_path(params[:contest_id]), notice: "Submission was successfully removed."
   end
 
+   # POST /contests/:contest_id/submission/:submission_id/upvote
+   def upvote
+    user_contest_votes = current_user.user_contest_votes(params[:contest_id])
+    if user_contest_votes > 3
+      notice = "You have used all your votes!"
+    else
+      vote = SubmissionVote.find_by(user_id: current_user.id, submission_id: params[:submission_id])
+      if vote.nil?
+        @submission_vote = SubmissionVote.new
+        @submission_vote.user_id = current_user.id
+        @submission_vote.submission_id = params[:submission_id]
+        @submission_vote.contest_id = params[:contest_id]
+        @submission_vote.save!
+        notice = "You have successfully voted the submission, Thanks! Votes remaining: #{2 - user_contest_votes}"
+      else
+        notice = "You have already vote this submission!"
+      end
+    end
+    redirect_to contest_page_path(params[:contest_id]), notice: notice
+  end
+
   private
 
     def authorize_admin

app/models/contest.rb

@@ -3,4 +3,5 @@
 class Contest < ApplicationRecord
     has_noticed_notifications model_name: "NoticedNotification"
     has_many :submissions, dependent: :destroy
+    has_many :submission_votes, dependent: :destroy
 end

app/models/submission_vote.rb

@@ -3,4 +3,5 @@
 class SubmissionVote < ApplicationRecord
   belongs_to :submission
   belongs_to :user
+  belongs_to :contest
 end

app/models/user.rb

@@ -102,6 +102,11 @@ def send_devise_notification(notification, *args)
     devise_mailer.send(notification, self, *args).deliver_later
   end
 
+  def user_contest_votes(contest)
+    SubmissionVote.where(user_id: id, contest_id: contest).count
+  end
+
+
   private
 
     def send_welcome_mail

app/views/contests/_submission.html.erb

@@ -16,7 +16,7 @@
         <% if project.author == current_user && contest.status == 'Live' %>
           <%= link_to "Withdraw", '#', class: "previewButton btn primary-button danger-primary-button", data: {toggle: "modal", target: "#withdraw-submission-confirmation-modal", submission: submission, contest: contest}  %>
         <% elsif project.author != current_user && contest.status == 'Live' %>
-          <%= link_to "Vote", '#', class: "previewButton btn primary-button" %>
+          <%= link_to "Vote", vote_submission_path(contest.id, submission.id), class: "previewButton btn primary-button", method: :post %>
         <% end %>
       </div>
     </div>

app/views/contests/_view.html.erb

@@ -11,7 +11,6 @@
         </div>
       </div>
       <div class="modal-footer">
-        <%= link_to "Vote", '#', class: "btn primary-button", id: "project-vote-button" %>
         <%= link_to t("more"), '#', class: "btn primary-button", id: "project-more-button", target: "_blank" %>
       </div>
     </div>

app/views/contests/show.html.erb

@@ -11,7 +11,11 @@
     <div>
       <h3 class="contest-header-title">Contest #<%= @contest.id %></h3>
       <p class="mb-0 contest-header-description">Get a chance to get featured on our website and show off your circuit to <%= @user_count %> users! </p>
+       <% if @contest.status == 'Live' %>
+        <p class="mb-0 contest-header-description">Your Remaining Votes: <%= 3 - current_user.user_contest_votes(@contest.id) %></p>
+      <% end %>
     </div>
+
     <% if @contest.status == 'Live' %>
       <div class="d-flex flex-column align-items-center">
         <span class="contest-header-timer">Time Left: <span id="timeLeftCounter">...</span></span>
@@ -40,7 +44,7 @@
   <div class="contest-page-line"></div>
   <div>
     <h5>Contest Entries(<%= @contest.submissions.count %>)</h5>
-    <span class="contest-header-sub-description">Vote for your favourite entries and help us choose our winners for this week! One user gets 1 votes.</span>
+    <span class="contest-header-sub-description">Vote for your favourite entries and help us choose our winners for this week! One user gets 3 votes.</span>
   </div>
   <div id="my-circuits-div" class="row center-row circuit-page">
     <% @submissions.each do |submission| %>

config/routes.rb

@@ -112,6 +112,7 @@
   get "/contests/:id/new_submission", to: "contests#new_submission", as: "new_submission"
   post "/contests/:id/create_submission", to: "contests#create_submission", as: "create_submission"
   delete "/contests/:contest_id/withdraw/:submission_id", to: "contests#withdraw", as: "withdraw_submission"
+  post "/contests/:contest_id/upvote/:submission_id", to: "contests#upvote", as: "vote_submission"
 
   # lti
   scope "lti"  do