improve flash error collection

improve views

app/controllers/payments_controller.rb

@@ -23,6 +23,7 @@ class PaymentsController < ApplicationController
     else
       @total_amount_to_pay = Ticket.total_price(@conference, current_user, paid: false)
       @unpaid_ticket_purchases = current_user.ticket_purchases.unpaid.by_conference(@conference)
+      flash[:error] = @payment.errors.full_messages.to_sentence + ' Please try again with correct credentials.'
       render :new
     end
   end

app/controllers/ticket_purchases_controller.rb

@@ -4,7 +4,7 @@ class TicketPurchasesController < ApplicationController
   authorize_resource :conference_registrations, class: Registration
 
   def create
-    TicketPurchase.by_conference(@conference).unpaid.by_user(current_user).destroy_all
+    current_user.ticket_purchases.by_conference(@conference).unpaid.destroy_all
     message = TicketPurchase.purchase(@conference, current_user, params[:tickets][0])
     if message.blank?
       if current_user.ticket_purchases.by_conference(@conference).unpaid.any?

app/views/conference_registrations/show.html.haml

@@ -85,12 +85,12 @@
   - if @conference.tickets.any?
     .row
       .col-md-12
-        %h4
-          %span.fa-stack
-            %i.fa.fa-square-o.fa-stack-2x
-            %i.fa.fa-ticket.fa-stack-1x
-          Ticket Purchases
-          -if @tickets.any?
+        -if @tickets.any?
+          %h4
+            %span.fa-stack
+              %i.fa.fa-square-o.fa-stack-2x
+              %i.fa.fa-ticket.fa-stack-1x
+            Ticket Purchases
             = "(#{@tickets.first.price.symbol}#{humanized_money @total_price})"
         %ul
           .col-md-12
@@ -103,13 +103,13 @@
                 = 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
-            You haven't bought any tickets.
-            = link_to 'Please buy some tickets to support us!', conference_tickets_path(@conference.short_title)
-            %p
-              (Your participation won't be valid without buying a ticket)
+        - if @tickets.any?
+          = link_to 'Buy more tickets', conference_tickets_path(@conference.short_title), class: "btn btn-default"
+        - else
+          You haven't bought any tickets.
+          = link_to 'Please buy some tickets to support us!', conference_tickets_path(@conference.short_title)
+          %p
+            (Your participation won't be valid without buying a ticket)
 
   .row
     .col-md-12

app/views/payments/new.html.haml

@@ -4,11 +4,6 @@
       %h1
         Payment Summary : 
         = humanized_money_with_symbol @total_amount_to_pay
-      - if @payment.errors.any?
-        .alert.alert-danger
-          %ul
-            - @payment.errors.full_messages.each do |msg|
-              %li= msg
     .col-xs-8.col-xs-offset-2.well
       = render partial: 'payment'
   .row