将实例变量初始化为数组-Ruby [英] Initializing Instance Variable as an Array - Ruby

问题描述

我正在尝试将实例变量和实例变量初始化为数组，如下所示:

I'm trying to initialize and instance variable as an array as follows:

  class Arch < ActiveRecord::Base  
  attr_accessor :name1

    def initialize
      @name1 = []
    end

    def add_name1(t)
      @name1 << t
    end

  end

当我在控制台会话中尝试Arch.new时，我得到了(对象不支持#inspect).这是怎么回事?我如何使实例数组变量?我尝试遵循此，如下所示:

When I try Arch.new in a console session I get (Object doesn't support #inspect). What's up? How do I make an instance array variable? I tried to follow this like so:

class Arch < ActiveRecord::Base
attr_accessor :name1

  def after_initialize
    @name1 = []
  end

  def add_name1(t)
    @name1 << t
  end

end

，我的@ name1仍然是NilClass. :/

and my @name1 was still a NilClass. :/

推荐答案

您正在重写ActiveRecord的initialize方法.尝试使用super:

You are overriding ActiveRecord's initialize method. Try using super:

def initialize(*args, &block)
   super 
   @name1 = []
end

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