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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 ...
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MySQL vs MongoDB 1000 reads

... man,,, the answer is that you're basically testing PHP and not a database. don't bother iterating the results, whether commenting out the print or not. there's a chunk of time. foreach ($cursor as $obj) { //echo $obj["thread_title"] . "<br><Br>"; ...
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Getting the location from an IP address [duplicate]

...ccording to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for the database. ...
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How would you access Object properties from within an object method? [closed]

... What if you add some sort of boolean to the getter like: PHP: public function getName($outsideCall = true){ if($outsideCall){ $this->incrementNameCalled(); } return $this->name; } and then from within the Object itself, if you called get name, you could keep ...
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驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网移动...

... 艾伦·考克斯不喜欢这个解决方案,这表明该容器是控制问题的最适当方式。为了响应这个建议,由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...
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驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网移动...

... 艾伦·考克斯不喜欢这个解决方案,这表明该容器是控制问题的最适当方式。为了响应这个建议,由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网移动...

... 艾伦·考克斯不喜欢这个解决方案,这表明该容器是控制问题的最适当方式。为了响应这个建议,由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网移动...

... 艾伦·考克斯不喜欢这个解决方案,这表明该容器是控制问题的最适当方式。为了响应这个建议,由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网移动...

... 艾伦·考克斯不喜欢这个解决方案,这表明该容器是控制问题的最适当方式。为了响应这个建议,由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...
https://www.tsingfun.com/it/os... 

驯服Linux OOM Killer(优质英文资料翻译) - 操作系统(内核) - 清泛网移动...

... 艾伦·考克斯不喜欢这个解决方案,这表明该容器是控制问题的最适当方式。为了响应这个建议,由 Nikanth Karthikesan 贡献的oom_killer 控制器提供了在系统内存不足时要杀死的进程序列的控制。该补丁引入了一个带有oom.priority字段...