Introduced Physical Ticket

Added PhysicalTicket model and controller. It holds the information about each physical ticket bought at the purchase. Physical Tickets are created after every successfull payment.

app/views/conferences/_conference_details.html.haml

@@ -38,3 +38,5 @@
               = link_to 'Subscribe', conference_subscriptions_path(conference.short_title), method: :post, class: 'btn btn-default'
             - else
               = link_to 'Unsubscribe', conference_subscriptions_path(conference.short_title), method: :delete, class: 'btn btn-default'
+            - if current_user && current_user.physical_tickets.by_conference(conference).any?
+              = link_to "My Tickets", conference_physical_ticket_index_path(conference.short_title), class: 'btn btn-default'

app/views/physical_ticket/index.html.haml

@@ -0,0 +1,35 @@
+.container
+  .row
+    .col-md-12.page-header
+      %h2
+        Tickets
+      .text-muted
+        Your tickets for the conference
+
+    .col-md-12
+      - if @physical_tickets.present?
+        %table.table.table-bordered.table-striped.table-hover#roles
+          %thead
+            %th ID
+            %th Type
+            %th User
+            %th Actions
+          %tbody
+            - @physical_tickets.each do |physical_ticket|
+              %tr
+                %td= physical_ticket.id
+                %td= physical_ticket.ticket.title
+                %td= physical_ticket.user.name
+                %td
+                  .btn-group
+                    = link_to 'Show',
+                    conference_physical_ticket_path(@conference.short_title,
+                                                    physical_ticket.id),
+                    class: 'btn btn-primary'
+                    = link_to 'Generate PDF',
+                    conference_physical_ticket_path(@conference.short_title,
+                                                    physical_ticket.id,
+                                                    format: :pdf),
+                    class: 'button btn btn-default btn-info'
+      - else
+        %h5 No Tickets found!