我正在开发一个Rails插件,需要通过帮助器输出一个复选框。将帮助程序startup_exchange_optin('user')
放在脚手架的Users#index视图中时,会出现该复选框。将其置于新视图,编辑视图和展示视图中,我得到NoMethodError
:
undefined method `startup_exchange_optin' for #<User:0x0000010162c620>
init.rb
调用的文件:
# lib/startup_exchange.rb
require 'startup_exchange/startup_exchange_helper'
module StartupExchange
end
ActiveSupport.on_load(:action_view) do
include StartupExchange::StartupExchangeHelper
end
帮助者:
# lib/startup_exchange/startup_exchange_helper.rb
module StartupExchange
module StartupExchangeHelper
def startup_exchange_optin(object_name, method = 'startup_exchange_optin', options = {}, checked_value = '1', unchecked_value = '0')
check_box(object_name, 'startup_exchange_optin', options, checked_value, unchecked_value)
end
end
end
该插件不会成为一个宝石,这就是init.rb
的需要。起初我尝试使用Railtie
但我无法初始化它。 ActiveSupport.on_load
似乎至少适用于索引视图。