在构建帮助小酒店管理预订的Rails应用程序的过程中,我遇到了一个奇怪的应用程序挂起。建立预订可以很好地工作;添加客人、将他们分配到房间等,没有问题。然而,当商人去“确认”一个询问时,Mongrel把我拖出去晾干。
预订的索引页列出了当前的查询和已确认的预订:
# reservations/index.html.erb
<% unless @reservations.empty? %>
<h2>Inquiries</h2><hr/><br/>
<%= render :partial => 'reservation', :collection => @reservations.reject { |r| r.confirmed } %>
<h2>Confirmed Reservations</h2><hr/><br/>
<%= render :partial => 'reservation', :collection => @reservations.reject { |r| not r.confirmed } %>
<% else %>
<%= link_to 'Search for rooms', :action => 'index', :controller => 'search' %>
<% end %>
在保留部分本身中,调用确认/不确认逻辑的位只是直接链接到控制器操作:
# _reservation.html.erb
(<% unless reservation.confirmed? %>
<%= link_to 'Confirm Reservation', :action => 'confirm', :id => reservation.id %>
<% else %>
<%= link_to 'Unconfirm Reservation', :action => 'unconfirm', :id => reservation.id %>
<% end %>)
用于确认预订的控制器操作(映射到“我的路线”中的放置)如下所示:
def confirm
puts "\n\n\nConfirming reservation #{params[:id]}..."
@reservation = Reservation.find(params[:id])
puts "Found reservation! Confirming..."
@reservation[:confirmed] = true
puts "Confirmed, saving..."
respond_to do |wants|
if @reservation.save
flash[:notice] = 'Reservation has been confirmed.'
wants.html { redirect_to :action => 'index' }
else
wants.html { render :action => 'index' }
end
end
end
'@reservation.save'就是诀窍所在。每次都有明确的应用程序挂起。
有人能帮我弄明白这到底是怎么回事吗?
/更新:
通过玩控制台,我可以用另一种方式演示这个问题:
?> r = Reservation.find(36)
=> #<Reservation id: 36, customer_name: "buyer", customer_email: "buyer@buy.com", begin: "2009-06-22 00:00:00", end: "2009-06-26 00:00:00", request_timestamp: nil, notes: "Thanks!", created_at: "2009-06-13 20:36:50", updated_at: "2009-06-13 20:36:50", yacht_id: 7, adults: 1, children: 0, buyer_id: 3, confirmed: nil>
>> r.confirmed = true
=> true
>> r
=> #<Reservation id: 36, customer_name: "buyer", customer_email: "buyer@buy.com", begin: "2009-06-22 00:00:00", end: "2009-06-26 00:00:00", request_timestamp: nil, notes: "Thanks!", created_at: "2009-06-13 20:36:50", updated_at: "2009-06-13 20:36:50", yacht_id: 7, adults: 1, children: 0, buyer_id: 3, confirmed: true>
>> r.save!
IRB::Abort: abort then interrupt!!
from C:/Ruby/lib/ruby/1.8/irb.rb:81:in `irb_abort'
from C:/Ruby/lib/ruby/1.8/irb.rb:247:in `signal_handle'
from C:/Ruby/lib/ruby/1.8/irb.rb:66:in `start'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:275:in `call'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:275:in `run_callbacks'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/callbacks.rb:344:in `callback'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/callbacks.rb:318:in `valid?'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/associations/association_proxy.rb:221:in `send'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/associations/association_proxy.rb:221:in `method_missing'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:906:in `validates_associated'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:906:in `collect'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:906:in `validates_associated'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:399:in `validates_each'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:396:in `each'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:396:in `validates_each'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:182:in `call'
... 2204 levels...
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:90:in `run'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:90:in `each'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:90:in `send'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:90:in `run'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/callbacks.rb:276:in `run_callbacks'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:1029:in `valid_without_callbacks?'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/callbacks.rb:315:in `valid?'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:1018:in `save_without_dirty!'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/dirty.rb:87:in `save_without_transactions!'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/transactions.rb:200:in `save!'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/database_statements.rb:136:in `transaction'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/transactions.rb:182:in `transaction'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/transactions.rb:200:in `save!'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/transactions.rb:208:in `rollback_active_record_state!'
from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/transactions.rb:200:in `save!'
from (irb):5>>
注意控制台也锁定了,我不得不中止保存!使用ctrl-c的命令。
世界上为什么会有拯救!这样做了吗?
/更新:
知道了!!!!它在我的模型里。我试图验证一个关联,我已经把“很多/属于”倒过来了。
谢谢大家!
