Question

我希望将DateTimes与当月的无效天数进行验证。我正在使用Mongoid 4alpha2和Rails 4，在我的模型上我有一个

field :date_of_birth, type: DateTime

当我使用“1988/02/30”从控制器为date_of_birth定期“创建”时，模型以date_of_birth“1988/03/1”保存，而不是获得DateInvalid错误，如常规DateTime.new（1988,2,30）将在rails控制台中。我不确定轻便摩托车或mongoid是否绕过了DateTime上的Rails验证，有没有其他人遇到过这个问题？

这是rails log

Started POST "/drivers" for 127.0.0.1 at 2014-01-16 10:42:40 -0500 Processing by DriversController#create as HTML Parameters: {"utf8"=>"✓", "authenticity_token"=>"LiKx1ZToNVtNL9FAEgyLNNWW7mABy2BPKPwVVcTtXKk=", "driver"=>{"field_worker_name"=>"Field Worker", "hack_number"=>"38924", "first_name"=>"test", "middle_initial"=>"", "last_name"=>"testing", "date_of_birth"=>"1988/02/30", "gender"=>"", "nationality"=>"", "language"=>"", "street"=>"something", "apartment_number"=>"", "city"=>"something", "state"=>"NY", "zip_code"=>"02398", "cell_phone"=>"", "other_phone"=>"", "email"=>"", "dmv_number"=>"", "state_of_residence"=>"", "has_health_insurance"=>"false", "health_plan"=>"", "date_of_recertification"=>""}, "commit"=>"Add Driver"}

MOPED: 127.0.0.1:27017 COMMAND database=admin command={:ismaster=>1} runtime: 0.5280ms

MOPED: 127.0.0.1:27017 QUERY database=healthfund_development collection=users selector={"$query"=>{"_id"=>BSON::ObjectId('52d59524544b38160c000000')}, "$orderby"=>{:_id=>1}} flags=[] limit=-1 skip=0 batch_size=nil fields=nil runtime: 0.4150ms

MOPED: 127.0.0.1:27017 QUERY database=healthfund_development collection=drivers selector={"hack_number"=>38924} flags=[] limit=-1 skip=0 batch_size=nil fields={:_id=>1} runtime: 1.1000ms

MOPED: 127.0.0.1:27017 INSERT database=healthfund_development collection=drivers documents=[{"field_worker_name"=>"Field Worker", "hack_number"=>38924, "first_name"=>"test", "middle_initial"=>"", "last_name"=>"testing", "date_of_birth"=>1988-03-01 00:00:00 UTC, "gender"=>"", "street"=>"something", "apartment_number"=>"", "city"=>"something", "state"=>"NY", "zip_code"=>"02398", "cell_phone"=>"", "other_phone"=>"", "email"=>"", "nationality"=>"", "language"=>"", "dmv_number"=>"", "state_of_residence"=>"", "has_health_insurance"=>false, "health_plan"=>"", "date_of_recertification"=>nil, "_id"=>38924, "updated_at"=>2014-01-16 15:42:40 UTC, "created_at"=>2014-01-16 15:42:40 UTC}] flags=[] COMMAND database=healthfund_development command={:getlasterror=>1, :w=>1} runtime: 3.4590ms Redirected to http://localhost:3000/drivers/38924 Completed 302 Found in 17ms

Answer 1

看起来Mongoid正在将解析日期留给MongoDB。在MongoDB shell中检查它：

> new Date('1988/02/30')
ISODate("1988-03-01T08:00:00Z")

这是JavaScript's Date constructor完全可以接受的行为：

注意：如果将Date作为具有多个参数的构造函数调用，如果值大于其逻辑范围（例如，13为月值或70为分钟值），则将调整相邻值。例如。 new Date(2013,13,1)相当于new Date(2014,1,1)，都为2014-01-01创建了一个日期。同样，对于其他值：new Date(2013,2,1,0,70)相当于new Date(2013,2,1,1,10)，它们都为2013-02-01T01:10:00创建日期。

就MongoDB而言，1988/02/30是1988年加2个月加30天，自1988年起是闰年，2月加3月1日30天。

无论如何，您应该使用:type => Date来表示出生日期。当然，Date具有相同的“像JavaScript一样对待”行为：

class M
  include Mongoid::Document
  field :d, :type => Date
end

m = M.create(:d => '1988/02/30')
m.d
# Tue, 01 Mar 1988

所以这没什么用。

你可以报告一个错误，看看Mongoid人对此的看法。同时，如果您需要更严格的解析，您可以自己完成：

field :date_of_birth, :type => Date

def date_of_birth=(date)
  super(Date.parse(date))
end

然后，当您说Model.create(:date_of_birth => '1988/02/30')时，您会收到异常。

Mongoid / Moped无效日期保存

1 个答案: