我想为竞赛者提交的提交内容构建一个评分应用。将有几名评委可以为参赛者输入得分。这是分数模型:
class Score < ActiveRecord::Base
validates :submission_id, presence: true
validates :score1, presence: true
validates :score2, presence: true
validates :score3, presence: true
end
分数将显示在分数摘要页面中:
<div class="row">
<div class="col-md-2">
<p><strong>Score 1:</strong></p>
</div>
<% @submission.scores.each do |score| %>
<div class="col-md-1">
<%= score.score1 %>
</div>
<% end %>
</div>
<div class="row">
<div class="col-md-2">
<p><strong>Score 2:</strong></p>
</div>
<% @submission.scores.each do |score| %>
<div class="col-md-1">
<%= score.score2 %>
</div>
<% end %>
</div>
<div class="row">
<div class="col-md-2">
<p><strong>Score 3:</strong></p>
</div>
<% @submission.scores.each do |score| %>
<div class="col-md-1">
<%= score.score3 %>
</div>
<% end %>
</div>
<div class="row">
<div class="col-md-2">
<p><strong>Total Score:</strong></p>
</div>
<% @submission.scores.each do |score| %>
<div class="col-md-1">
<strong><%= ((0.25 * score.score1) + (0.25 * score.score2) + (0.50 * score.score3)) %></strong>
</div>
<% end %>
</div>
<div class="row">
<div class="col-md-2">
<p><strong>FINAL SCORE:</strong></p>
</div>
<div class="col-md-1">
<strong><!-- Sum all of the total score above --></strong>
</div>
</div>
该页面将显示每位评委提交的所有分数,并将最终分数中的每个评分进行求和。
现在,我想将每个评委的所有最终得分加总到最终得分总分中。如何实现?
提前谢谢。
答案 0 :(得分:1)
我看到你的分数也有乘法因此你想在那里使用它也是这样:
@submission.scores.sum('0.25 * (score1 + score2) + 0.5 * score3')
如果不是,请使用此:
@submission.scores.sum('score1 + score2 + score3')