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Rails where condition using NOT NIL
...t's easy:
Foo.includes(:bar).where.not(bars: {id: nil})
See also:
http://guides.rubyonrails.org/active_record_querying.html#not-conditions
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Abstraction VS Information Hiding VS Encapsulation
...g background details. (e.g. Interface)
FOR EXAMPLES AND MORE INFO GOTO :
http://thecodekey.com/C_VB_Codes/Encapsulation.aspx
http://thecodekey.com/C_VB_Codes/Abstraction.aspx
Approved definitions here
P.S.: I also remember the definition from a book named C++ by Sumita Arora which we read in 11...
Creating PHP class instance with a string
...
have a look at example 3 from http://www.php.net/manual/en/language.oop5.basic.php
$className = 'Foo';
$instance = new $className(); // Foo()
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HashMap and int as key
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You may try to use Trove http://trove.starlight-systems.com/
TIntObjectHashMap is probably what you are looking for.
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Mixing C# & VB In The Same Project
...can potentially use them both in a web project in the App_Code directory:
http://pietschsoft.com/post/2006/03/30/ASPNET-20-Use-VBNET-and-C-within-the-App_Code-folder.aspx
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How to set the maximum memory usage for JVM?
...erence between jvm and heap memory , take a look at this excellent article
http://blogs.vmware.com/apps/2011/06/taking-a-closer-look-at-sizing-the-java-process.html
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What's the difference between Html.Label, Html.LabelFor and Html.LabelForModel
...model then you can use the 2nd method.
More info please visit below link
http://weblogs.asp.net/scottgu/archive/2010/01/10/asp-net-mvc-2-strongly-typed-html-helpers.aspx
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log4j logging hierarchy order
...es.
You can also refer this link for more information about log levels :
https://logging.apache.org/log4j/2.0/manual/architecture.html
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PHP mail function doesn't complete sending of e-mail
...et("mail.log", "/tmp/mail.log");
ini_set("mail.add_x_header", TRUE);
See http://php.net/manual/en/mail.configuration.php for details. (It's best to enable these options in the php.ini or .user.ini or .htaccess perhaps.)
Check with a mail testing service
There are various delivery and spamminess ...
Put content in HttpResponseMessage object?
Several months ago, Microsoft decided to change up the HttpResponseMessage class. Before, you could simply pass a data type into the constructor, and then return the message with that data, but not anymore.
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