如何将activeModel::base.include_root_in_json设置为false?

ActiveModel::Base.include_root_in_json = false

在初始值设定项中??

我知道这很古老,但另一种方法是将其放在application.rb中的应用程序类中:

# When JSON-encoding a record, don't wrap the attributes in a hash where the
# key is named after the model
config.active_record.include_root_in_json = false

您只需在包含ActiveModel模块的类上设置它:

class Person
  include ActiveModel::Validations
  include ActiveModel::Serializers::JSON
  self.include_root_in_json = false

  ...
end

如果你喜欢初始值设定项,它是 ActiveRecord::Base 不是 ActiveModel::Base 在Rails版本2.*和3.1中,可能是3.0。查看源代码,在3.0测试版中,它被切换到ActiveModel,但在某个时刻又回到ActiveRecord。

ActiveRecord::Base.include_root_in_json = false

此外,如果您实际上尝试使用此功能,那么在Rails3.1中,参数包装器是相关的:

操作控制器::paramswrapper

将参数哈希包装为嵌套哈希。这将允许客户端提交POST请求,而不必指定任何根元素。

http://edgeapi.rubyonrails.org/classes/ActionController/ParamsWrapper.html