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What is scope/named_scope in rails?
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213
A scope is a subset of a collection. Sounds complicated? It isn't. Imagine this:
You have User...
Foreign Key to non-primary key
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190
If you really want to create a foreign key to a non-primary key, it MUST be a column that has ...
Using varchar(MAX) vs TEXT on SQL Server
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318
The VARCHAR(MAX) type is a replacement for TEXT. The basic difference is that a TEXT type will ...
Why does casting int to invalid enum value NOT throw exception?
...ArgumentException(string.Format("{0} is not a defined value for enum type {1}",
enumValue, typeof(T).FullName)));
return parsedValue;
}
public static bool IsDefined(T enumValue)
{
return System.Enum.IsDefined(typeof (T), enumValue);
}
}
public sta...
Send an Array with an HTTP Get
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154
That depends on what the target server accepts. There is no definitive standard for this. See ...
When vectors are allocated, do they use memory on the heap or the stack?
... how you use them (you could point element 0 to the free store and element 1 to the stack, say).
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HTTP Content-Type Header and JSON
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137
The Content-Type header is just used as info for your application. The browser doesn't care w...
How to unpack and pack pkg file?
... a file but I dont know how pack again to pkg.
http://emresaglam.com/blog/1035
http://ilostmynotes.blogspot.com/2012/06/mac-os-x-pkg-bom-files-package.html
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Change old commit message on Git
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130
It says:
When you save and exit the editor, it will rewind you back to that last commit in th...
Which regular expression operator means 'Don't' match this character?
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edited Sep 10 '14 at 7:51
answered May 8 '11 at 5:22
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