[英]Rails to_json uses different DATE_FORMATS that .to_s
With the following in my rails_defaults.rb: 在我的rails_defaults.rb中包含以下内容:
Date::DATE_FORMATS[:default] = '%m/%d/%Y'
Time::DATE_FORMATS[:default]= '%m/%d/%Y %H:%M:%S'
Why do the following results differ: 为什么以下结果不同:
ruby-1.9.2-p180 :005 > MyModel.find(2).to_json(:only => :start_date)
=> "{\"start_date\":\"2012-02-03\"}"
ruby-1.9.2-p180 :006 > MyModel.find(2).start_date.to_s
=> "02/03/2012"
And more importantly, how do I get to_json
to use %m/%d/%Y
? 更重要的是,如何获取to_json
以使用%m/%d/%Y
?
Because the standard JSON format for a date is %Y-%m-%d
and there's no way to change it unless you override Date#as_json
(don't do so or your application will start misbehaving). 由于日期的标准JSON格式为%Y-%m-%d
,除非您覆盖Date#as_json
,否则无法更改它(请勿这样做,否则应用程序将开始出现异常)。
See https://github.com/rails/rails/blob/master/activesupport/lib/active_support/json/encoding.rb#L265-273 参见https://github.com/rails/rails/blob/master/activesupport/lib/active_support/json/encoding.rb#L265-273
class Date
def as_json(options = nil) #:nodoc:
if ActiveSupport.use_standard_json_time_format
strftime("%Y-%m-%d")
else
strftime("%Y/%m/%d")
end
end
end
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.