这是控制器中的方法:
def sort
case params[:order_param]
when "title"
@cars = Movie.find(:all, :order => 'title')
when "rating"
@cars = Movie.find(:all, :order => 'rating')
else "release"
@cars = Movie.find(:all, :order => 'release_date')
end
redirect_to cars_path
end
这是观点:
%th= link_to "Car Title", :action => 'sort', :order_param => 'title'
%th= link_to "Rating", :action => 'sort', :order_param => 'rating'
%th= link_to "Release Date", :action => 'sort', :order_param => 'release'
如果我打开索引页面,则会显示以下错误消息:
No route matches {:action=>"sort", :order_param=>"title", :controller=>"cars"}
“rake routes”命令的结果
cars GET /cars(.:format) {:action=>"index", :controller=>"cars"}
POST /cars(.:format) {:action=>"create", :controller=>"cars"}
new_car GET /cars/new(.:format) {:action=>"new", :controller=>"cars"}
edit_car GET /cars/:id/edit(.:format) {:action=>"edit", :controller=>"cars"}
car GET /cars/:id(.:format) {:action=>"show", :controller=>"cars"}
PUT /cars/:id(.:format) {:action=>"update", :controller=>"cars"}
DELETE /cars/:id(.:format) {:action=>"destroy", :controller=>"cars"}
答案 0 :(得分:1)
首先干掉它。没有必要那个开关/箱子。
def sort
@cars = Movie.order(params[:order_param])
redirect_to cars_path
end
其次,看起来您的sort
文件中没有定义routes.rb
路由。
答案 1 :(得分:1)
您根本不需要排序方法(或重定向)。您可以将该代码放入索引方法,因为您要显示index.html.haml(排序'cars'不应该将您发送到新页面,对吗?)
def index
order_param = params[:order_param]
case order_param
when 'title'
ordering = {:order => :title}
when 'release_date'
ordering = {:order => :release_date}
end
@cars = Movie.find_all(ordering)
end
答案 2 :(得分:0)
感谢您的帮助,这是我正在搜索的解决方案(非常类似于mehtunguh解决方案)。很抱歉误解,我是铁杆新手。
def index
case params[:order_param]
when "title"
@cars = Movie.find(:all, :order => 'title')
when "rating"
@cars = Movie.find(:all, :order => 'rating')
when "release"
@cars = Movie.find(:all, :order => 'release_date')
else
@cars = Movie.all
end
end