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How to determine if a record is just created or updated in after_save
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I was looking to use this for an after_save callback.
A simpler solution is to use id_changed...
How to get xdebug var_dump to show full object/array
I am using xdebug (php_xdebug-2.1.2-5.3-vc9.dll) on WAMP . When I use var_dump on a large object or variable it does not show the full variable.
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Why doesn't Mockito mock static methods?
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I think the reason may be that mock object libraries typically create mocks by dynamically creat...
Replacing H1 text with a logo image: best method for SEO and accessibility?
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How to convert NSDate into unix timestamp iphone sdk?
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10 Answers
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How do I fit an image (img) inside a div and keep the aspect ratio?
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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术
...两个节点或直接或通过一个或多个中介机构连接。
第1点很明显，故意使用单词“通道”而不是使用“连接”这一点是为了描述模型工作的实际情况，即使IP多播或UDP等无连接的底层传输亦是如此。
第2点说明所有拓扑里的...
Java Singleton and Synchronization
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Yes, it is necessary. There are several methods you can use to achieve thread safety with lazy ...
Why not use java.util.logging?
...4J is better than j.u.l but because most Java developers currently (July 2012) prefer SLF4J as their logging API. If ultimately you decide not to care about popular opinion, consider the following facts:
those who prefer j.u.l do so out of convenience because j.u.l is bundled with the JDK. To my k...
How to convert an Int to a String of a given length with leading zeros to align?
How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ?
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