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POSum of booking per user
 

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    <p>I am trying to get the <code>sum</code> of the overtime per user <strong>NOT</strong> per booking which is what it is doing now: <a href="http://i.imgur.com/dhGgzGz.png" rel="nofollow">Imgur</a></p> <p><strong>Controller</strong></p> <pre><code>def index @users = User.all @hospital_bookings = HospitalBooking.scoped end end </code></pre> <p><strong>Index.html.erb</strong></p> <pre><code>&lt;%@users.each do |user|%&gt; &lt;% user.hospital_bookings.each do |hospital_booking| %&gt; { name:'&lt;%= hospital_booking.user.try(:name)%&gt;', data:[&lt;%= @hospital_bookings.where(:user_id =&gt; hospital_booking.user.id).all.sum(&amp;:overtime)%&gt;] }, &lt;% end %&gt; &lt;% end %&gt; </code></pre> <p><strong>Models</strong></p> <pre><code>#User.rb has_many :hospital_bookings #hospital_booking belongs_to :user </code></pre> <p><strong>Schema.rb</strong> </p> <pre><code>create_table "hospital_bookings", :force =&gt; true do |t| t.string "booking_reference" t.datetime "created_at", :null =&gt; false t.datetime "updated_at", :null =&gt; false t.integer "hospital_id" t.integer "user_id" t.date "day" t.string "shift_type" t.decimal "overtime", :precision =&gt; 10, :scale =&gt; 0 end </code></pre> <p>I have tried the following and these both do not seem to work. </p> <pre><code>**Attempt1** &lt;%= @hospital_bookings.where(:user_id =&gt; user.id, :hospital_booking =&gt; hospital_id ).all.sum(&amp;:overtime)%&gt; **Attempt2** &lt;%= HospitalBooking.where(user_id: user.id, hospital_id: hospital.id).sum(:overtime) %&gt; </code></pre>
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