repair code reviews, improve environment configs

app/assets/stylesheets/osem-payments.css.scss

@@ -1,7 +1,6 @@
 .price-tags {
   list-style-type: none;
   padding-top: 2rem;
-  // display: inline-block;
 }
 .price-tags li {
   line-height: 40px;

app/models/ability.rb

@@ -81,7 +81,7 @@ class Ability
 
     can :index, Ticket
     can :manage, TicketPurchase, user_id: user.id
-    can :manage, Payment, user_id: user.id
+    can [:new], Payment, user_id: user.id
 
     can [:create, :destroy], Subscription, user_id: user.id
 

app/models/ticket.rb

@@ -26,7 +26,7 @@ class Ticket < ActiveRecord::Base
   end
 
   def unpaid?(user)
-    ticket_purchases.find_by(user: user, paid: false).present?
+    ticket_purchases.unpaid.by_user(user).present?
   end
 
   def total_price(user, paid: false)

app/views/conference_registrations/show.html.haml

@@ -93,7 +93,7 @@
           -if @tickets.any?
             = "(#{@tickets.first.price.symbol}#{humanized_money @total_price})"
         %ul
-          .col.md-4
+          .col-md-12
             - @ticket_payments.each_pair do |ticket_id, tickets|
               %li
                 = @total_quantity[ticket_id]
@@ -102,6 +102,7 @@
                 for
                 = tickets.first.price.symbol
                 = humanized_money tickets.first.price
+            %br
           - if @tickets.any?
             = link_to 'Buy more tickets', conference_tickets_path(@conference.short_title), class: "btn btn-default"
           - else

app/views/payments/index.html.haml

@@ -29,4 +29,4 @@
           %tr
             %td{:colspan => "5"} No payments have been attempted.
       .pull-right
-        = link_to "Conference Registration", conference_conference_registrations_path(@conference.short_title), class: 'btn btn-primary'
+        = link_to "Conference Registration", conference_conference_registration_path(@conference.short_title), class: 'btn btn-primary'