When creating a new ticket for an event as admin, non-number input will output a nasty stack trace

[dmotles]

Steps:

1. create an event
2. click create ticket so the url looks like [host]/events/1/tickets/new
3. put a number like 600 in the cost field
4. put something like "over 9000" in the Available field
5. click "create ticket"

   You get the following:

NoMethodError in Tickets#create

Showing /home/dmotles/code/plas/app/views/tickets/_form.html.erb where line #1 raised:

undefined method `model_name' for NilClass:Class
Extracted source (around line #1):

1: <%= form_for ([@event, @ticket])  do |f| %>
2:   <% if @ticket.errors.any? %>
3:     <div id="error_explanation">
4:       <h2><%= pluralize(@ticket.errors.count, "error") %> prohibited this ticket from being saved:</h2>
Trace of template inclusion: app/views/tickets/new.html.erb

Rails.root: /home/dmotles/code/plas

Application Trace | Framework Trace | Full Trace
app/views/tickets/_form.html.erb:1:in `_app_views_tickets__form_html_erb__3302624983022953928_39195520_3150842096570869018'
app/views/tickets/new.html.erb:3:in `_app_views_tickets_new_html_erb___1007846872533634996_39238320__3039767047594116635'
app/controllers/tickets_controller.rb:62:in `block (2 levels) in create'
app/controllers/tickets_controller.rb:57:in `create'
lib/rack/firebug_logger.rb:9:in `call'
lib/rack/firebug_logger.rb:9:in `call'
Request

Parameters:

{"utf8"=>"✓",
 "authenticity_token"=>"S5fZlj8+6u5+FXwWAj9nkxs/chCR16+CsRnnu5rEjds=",
 "ticket"=>{"name"=>"Registration for one person",
 "cents"=>"600",
 "available"=>"over 9000",
 "date_open(1i)"=>"2011",
 "date_open(2i)"=>"6",
 "date_open(3i)"=>"28",
 "date_open(4i)"=>"00",
 "date_open(5i)"=>"54",
 "date_closed(1i)"=>"2011",
 "date_closed(2i)"=>"6",
 "date_closed(3i)"=>"28",
 "date_closed(4i)"=>"00",
 "date_closed(5i)"=>"54"},
 "commit"=>"Create Ticket",
 "event_id"=>"1"}
Show session dump

Show env dump

Response

Headers:

None