will_paginate未定义的方法`total_pages'
我在这里错过了什么？ 我正在使用haml_scaffold生成器，并且这些页面与will_paginate正常工作。 当我开始修补时，我最终会遇到这个'total_pages'错误，我不知道我在做什么导致它。 任何人有任何见解？ 我正在使用mislav-will_paginate 2.3.11。
mike@jauntyjackalope:~/project$ script/console Loading development environment (Rails 2.3.4) >> @locations = Location.find_all_by_city("springfield") => [#<Location id: 3, address: "123 Main St", city: "springfield", phone: "321-1234", business_id: 2>] >> @locations.class => Array >> @locations.collect{|loc| loc.business} => [#<Business id: 2, name: "A Bar", website: "www.abar.com", business_owner_id: 1, created_at: "2009-08-31 21:13:10", updated_at: "2009-08-31 21:13:10">] >> @locations.class => Array >> @locations.paginate(:page => 1, :per_page => 2) => [#<Location id: 3, address: "123 Main St", city: "springfield", phone: "321-1234", business_id: 2>] >> helper.will_paginate(@locations) NoMethodError: undefined method `total_pages' for #<Array:0xb6f83bc4> from /var/lib/gems/1.8/gems/mislav-will_paginate-2.3.11/lib/will_paginate/view_helpers.rb:197:in `total_pages_for_collection' from /var/lib/gems/1.8/gems/mislav-will_paginate-2.3.11/lib/will_paginate/view_helpers.rb:98:in `will_paginate' from (irb):7 >> y @locations --- - !ruby/object:Location attributes: city: springfield business_id: "2" id: "3" phone: 321-1234 address: 123 Main St attributes_cache: {} business: !ruby/object:Business attributes: name: A Bar updated_at: 2009-08-31 21:13:10 website: www.abar.com id: "2" created_at: 2009-08-31 21:13:10 business_owner_id: "1" attributes_cache: {} => nil >> 尝试改变
@locations.paginate(:page => 1, :per_page => 2)
至
@locations = @locations.paginate(:page => 1, :per_page => 2)
希望这可以帮助
包括
require 'will_paginate/array'
加载之前，代码将解决您的问题。
如果其他人有这个问题。 就我而言，我最后并没有在我的控制器方法中调用分页。
示例之前：
@foo = Foo.paginate(:page => params[:page], :per_page => 15) @foo = Foo.do something
示例之后：我在我的方法中最后调用了分页，因为rails从上到下读取，似乎解决了我的错误。
@foo = Foo.do something @foo = Foo.paginate(:page => params[:page], :per_page => 15)
@locations = Location.paginate(:all, :conditions => 'city = springfield')
@locations必须是一个对象
在你的例子中@locations是一个Array
数组不能有total_pages方法
