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How to select where ID in Array Rails ActiveRecord without exception
...ore relevant for Rails 4.x
Do this:
current_user.comments.where(:id=>[123,"456","Michael Jackson"])
The stronger side of this approach is that it returns a Relation object, to which you can join more .where clauses, .limit clauses, etc., which is very helpful. It also allows non-existent IDs ...
谷歌开源桌面操作系统 ChromeOS 安装体验 - 操作系统(内核) - 清泛网 - 专...
谷歌开源桌面操作系统 ChromeOS 安装体验ChromeOS是谷歌google开发的一个开源操作系统，为网络云端用户提供了一种更快速，更简单，更安全的上网体验！下面我们就来体验下最新的Chro...ChromeOS是谷歌google开发的一个开源操作系统，...
How to override !important?
... answered May 18 '14 at 19:12
KM123KM123
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Share variables between files in Node.js?
...e..
// main.js
var myModule = require('./module.js');
var shares = {value:123};
// Initialize module and pass the shareable object
myModule.init(shares);
// The value was changed from init2 on the other file
console.log(shares.value); // 789
On the other file..
// module.js
var shared = null;
...
How to get UTF-8 working in Java webapps?
... in case anyone else has a similar problem.
– testing123
Dec 7 '11 at 15:33
3
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Why can't variable names start with numbers?
... If it had to be numbers+alpha, then you could still do String 0x123 = "Hello World". Unless you state that variable names are "numbers+alpha that don't parse to a valid numeric designation", and that's just silly.
– eaolson
Oct 11 '09 at 3:56
...
Windows启动过程 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...取磁盘的第零簇的内容。第零簇内容有一个特殊的称谓 - 操作系统主引导扇区 MBR(Master Boot Record)。
2、MBR保护两部分:
1.系统启动代码 (共有446 bytes)
2.分区表入口(16 bytes colored entries in the bottom)
3、根据系统代码，我们...
Instagram how to get my user id from username?
... searched for. Eg. if you're searching for "fred1" but there's also a "fred123", you'll get random results! Reported to instagram; awaiting a response :(
– Danny Tuppeny
Aug 13 '14 at 9:06
...
Path.Combine for URLs?
... if (Uri.TryCreate(new Uri("localhost/MyService/"), "/Event/SomeMethod?abc=123", out result)) { Console.WriteLine(result); } It is showing me result as : localhost/Event/SomeMethod?abc=123 Note: "http://" is replaced from base Uri here by stackoverflow
...
How to write a simple database engine [closed]
...rt of each column to have the length of this column
like "Adam", 1, 11.1, "123 ABC Street POBox 456"
you can have it like
<&RowHeader, 1><&Col1,CHR, 4>Adam<&Col2, num,1,0>1<&Col3, Num,2,1>111<&Col4, CHR, 24>123 ABC Street POBox 456<&RowTrailer...