我的控制器方法release_reservation没有用新值保存属性

Question

我是rails新手。我相信我的问题可能会用一两句话来回答。我就是想不出哪里不对劲。请帮帮我！提前感谢您的宝贵时间。这就是我的问题:我的控制器方法release_reservation不能将具有新值的属性保存到数据库中。以我有限的rails知识，我怀疑这与routes.rb有关，但我无法缩小到实际问题的范围。下面是在reservations_controller.rb中定义的release_reservation

def release_reservation
@reservation = Reservation.find(params[:id])
@reservation.reserve_from = DateTime.now
@reservation.reserve_to = DateTime.now
@reservation.reserve_status = false

respond_to do |format|
if  @reservation.update_attributes(params[:reservation]) 
  format.html {redirect_to release_reservation_reservation,  :notice => 'Machine was    successfully released' }# show.html.erb
  format.json { render :json => @reservation }
else
  format.html { render :action => "show" }
  format.json { render :json => @reservation.errors, :status => :unprocessable_entity }
end
end
end

这是Reservation.rb模型

class Reservation < ActiveRecord::Base

validates :machine_reserver,  :presence => true, :length => { :maximum => 50 }

validates :machine_name, :uniqueness => {:scope => :machine_platform}

validate :check_reservation_end_date, :on => :update 
validate :check_reservation_from_date

default_scope :order => 'updated_at DESC'

def date_reset
self.reserve_from = DateTime.now
self.reserve_to = DateTime.now
end 

def check_reservation_end_date
   if self.reserve_to < self.reserve_from 
     errors.add(:reserve_to, "cannot be lesser than or equal to start date")
   end 
end

def check_reservation_from_date
if self.reserve_from < DateTime.now
  errors.add(:reserve_from, "cannot be lesser than current date & time")
end
end
end

下面是我想从其中调用release_reservation的视图文件

<h1>Reservation</h1>
<br>    
<p>
<% if @reservation.reserve_to > DateTime.now %>
This machine will be released in 
<% duration = @reservation.reserve_to - DateTime.now %> 
<%= distance_of_time_in_words(duration) %>
<% end %>
</p>   
<p>
  <b>Machine name: </b>
  <%= @reservation.machine_name %>
</p>    
<p>
  <b>Machine platform: </b>
  <%= @reservation.machine_platform %>
</p>    
<p>
<% if  @reservation.reserve_to > DateTime.now %>
  <b>Reserved by: </b>
  <%= @reservation.machine_reserver %>
<% end %>
</p>    
<p>
<% if  @reservation.reserve_to > DateTime.now %>
  <b>Reserve from: </b>
  <%= @reservation.reserve_from.to_formatted_s(:long)  %>
<% end %>
</p>    
<p>
<% if  @reservation.reserve_to > DateTime.now %>
  <b>Reserve to: </b>
  <%= @reservation.reserve_to.to_formatted_s(:long)  %>
<% end %>
</p>    
<div class="form-actions">
  <%= link_to 'Back', reservations_path, :class => 'btn'  %>
<% if  @reservation.reserve_to > DateTime.now %>
<%= link_to 'Release', {:controller => 'reservations', :action => 'release_reservation', :id => @reservation}, :confirm => "Are you sure?", :class => 'btn btn-danger' %> 
<% else %>
<%= link_to 'Reserve', edit_reservation_path(@reservation), :class => 'btn btn-primary' %> 
<% end %> 

这是routes.rb

Reserver::Application.routes.draw do

  resources :reservations do
    member do
    get 'release_reservation'
       end
 end
  resources :machines  
  resources :reserves
  resources :platforms
  resources :users
  root :to => 'reservations#index'  
end

瑞克路由

release_reservation_reservation GET    /reservations/:id/release_reservation(.:format) reservations#release_reservation
                   reservations GET    /reservations(.:format)                         reservations#index
                                POST   /reservations(.:format)                         reservations#create
                new_reservation GET    /reservations/new(.:format)                     reservations#new
               edit_reservation GET    /reservations/:id/edit(.:format)                reservations#edit
                    reservation GET    /reservations/:id(.:format)                     reservations#show
                                PUT    /reservations/:id(.:format)                     reservations#update
                                DELETE /reservations/:id(.:format)                     reservations#destroy

Answer 1

我认为您的验证阻止了实例持久化