关系类有属性错误
为什么关系类属性不是属性？
$ rs = ResourceServer.new
=> #<ResourceServer id: nil, resource_id: nil, server_id: nil, created_at: nil, updated_at: nil>
$ rs = ResourceServer.attributes = {:server_id => 1, :resource_id => 1}
NoMethodError: undefined method `attributes=' for #<Class:0x00000003384728>
模型：
class ResourceServer < ActiveRecord::Base
belongs_to :server
belongs_to :resource
# Validations
...
end
Why relationship classes attribute is not attribute?
$ rs = ResourceServer.new
=> #<ResourceServer id: nil, resource_id: nil, server_id: nil, created_at: nil, updated_at: nil>
$ rs = ResourceServer.attributes = {:server_id => 1, :resource_id => 1}
NoMethodError: undefined method `attributes=' for #<Class:0x00000003384728>
Model:
class ResourceServer < ActiveRecord::Base
belongs_to :server
belongs_to :resource
# Validations
...
end
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评论（2）
这只是因为您在类
ResourceServer上调用#attributes=实例方法，而不是在对象rs上调用。你想做的是：
它会起作用！ :)
It is just because your are calling the
#attributes=instance method on the classResourceServerand not on the objectrs.What you want to do is:
And it will work! :)
ResourceServer 是一个类，您需要该类的实例才能为其分配属性。例如你可以这样做：
ResourceServer is a class, you need an instance of that class in order to assign attributes to it. For example you can do: