Merge branch 'master' into fix-sponsor-caching

app/assets/stylesheets/osem.scss

@@ -115,3 +115,9 @@ p.comment-body {
         float: right;
     }
 }
+
+/* omniauth btn grp */
+#openid-btn-grp{
+  display: flex;
+  justify-content: center;
+}

app/models/ticket.rb

@@ -62,7 +62,11 @@ class Ticket < ApplicationRecord
 
   def tickets_turnover_total(id)
     tickets = TicketPurchase.where(ticket_id: id).paid
-    tickets.inject(0){ |sum, ticket| sum + (ticket.amount_paid * ticket.quantity) }
+    if tickets.blank?
+      Money.new(0, Ticket.find(id).price_currency)
+    else
+      tickets.inject(Money.new(0, tickets.first.price_currency)){ |sum, ticket| sum + (ticket.amount_paid * ticket.quantity) }
+    end
   end
 
   def tickets_sold

app/views/devise/shared/_openid_links.html.haml

@@ -1,5 +1,5 @@
 .text-center
-  .btn-group.btn-group-lg
+  .btn-group.btn-group-lg#openid-btn-grp
     - omniauth_configured.each do |provider|
       = link_to "user_#{provider}_omniauth_authorize".to_sym, class: "btn btn-success btn-lg",
                                                         id: "omniauth-#{provider}",

db/schema.rb

@@ -496,7 +496,7 @@ ActiveRecord::Schema.define(version: 20171201163628) do
     t.integer  "user_id"
     t.integer  "payment_id"
     t.integer  "week"
-    t.float    "amount_paid"
+    t.float    "amount_paid",   default: 0.0
   end
 
   create_table "ticket_scannings", force: :cascade do |t|