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Rails params explained?
...e "1" and params[:boo] would be "octopus".
In HTTP/HTML, the params are really just a series of key-value pairs where the key and the value are strings, but Ruby on Rails has a special syntax for making the params be a hash with hashes inside. For example, if the user's browser requested
http://w...
Objective-C 2.0 Mac和iOS开发实践指南 PDF扫描版 - 文档下载 - 清泛网 - ...
...
第9章 常用Foundat.on类
第10章 Object.ve-C中的控制结构
第11.章 分类、扩展和安全
第12章 特性
第13章 协议
第三部分 高级概念
第1.4章 引用计数
……
第四部分 附录
WinXP,Win7,Win8,Win1038M
How to access route, post, get etc. parameters in Zend Framework 2
...gt;fromFiles('paramname'); // From file being uploaded
Default values
All of these methods also support default values that will be returned if no parameter with the given name is found.
Example:
$orderBy = $this->params()->fromQuery('orderby', 'name');
When visiting http://example.com/?...
How to get one value at a time from a generator function in Python?
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In Python <= 2.5, use gen.next(). This will work for all Python 2.x versions, but not Python 3.x
In Python >= 2.6, use next(gen). This is a built in function, and is clearer. It will also work in Python 3.
Both of these end up calling a specially named function, next(), wh...
Is null reference possible?
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References are not pointers.
8.3.2/1:
A reference shall be initialized to
refer to a valid object or function.
[Note: in particular, a null reference
cannot exist in a well-defined
program, because the only way to
create such a reference would be to
bind it to the ...
Scala: Nil vs List()
In Scala, is there any difference at all between Nil and List() ?
3 Answers
3
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Automapper - how to map to constructor parameters instead of property setters
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Use ConstructUsing
this will allow you to specify which constructor to use during the mapping. but then all of the other properties will be automatically mapped according to the conventions.
Also note that this is different from ConvertUsing in that con...
Django's SuspiciousOperation Invalid HTTP_HOST header
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If your ALLOWED_HOSTS is set correctly, then it is possible someone is probing your site for the vulnerability by spoofing the header.
There is discussion right now by the Django developers to change this from a 500 internal server...
How does lucene index documents?
...links . But i heard that Lucene project has a special stemmer named "Snowball"? Do you heard anything about that ?
– M.Amrollahi
Apr 9 '10 at 17:44
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Optional query string parameters in ASP.NET Web API
...ect using [FromUri] doesn't directly answer the original question. It basically says populate these models with the values from the Uri. The models properties would need to be nullable or a reference type in order for them to support being optional. Added additional information.
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