我在应用程序控制器上有set_pagination_header
,我需要从其他控制器调用它:
# syntax error in line below
after_action :set_pagination_header, :my_argument_object, only: [:index]
def index
@my_argument_object = Resource.page(1)
render json: @my_argument_object
end
我可以直接发送原始@my_argument_object
,所以我不想这样做:
def set_pagination_header(name, options = {})
scope = instance_variable_get("@#{name}")
# some_logic_here
end
1)什么是正确的语法(需要内联语法)?
2)为什么set_pagination_header(object, options = {})
不是定义?
编辑:我发现了here之类的内容
after_filter only: [:index] { set_pagination_header(:germs) }
这是旧语法,我们现在得到了after_action。尽管如此,我相信有一种内联方式可以做到这一点,不是吗?
# I tried and that didn't work
after_action :set_pagination_header(:my_argument_object), only: [:index]
after_action { :set_pagination_header(:my_argument_object) } only: [:index]
after_action { :set_pagination_header, :my_argument_object } only: [:index]
答案 0 :(得分:0)
您只需要为回调添加方法调用
after_action :set_pagination_header_callback, only: :index
def set_pagination_header_callback
set_pagination_header(...your variables here...)
end
# application_controller.rb
def set_pagination_header(name, options = {})
scope = instance_variable_get("@#{name}")
# some_logic_here
end
答案 1 :(得分:0)
内联方式,但不是那么干净!
after_action Proc.new{ set_pagination_header(:paged_orders) }, only: [:index]