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How to map a composite key with JPA and Hibernate?
...w this question is not strictly about JPA but the rules defined by the specification also applies. So here they are:
2.1.4 Primary Keys and Entity Identity
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A composite primary key must
correspond to either a single
persistent field or property or to a
set of such fields or pr...
Trigger change() event when setting 's value with val() function
...ggers the following change code.
$('#selectField').change(function(){
if($('#selectField').val() == 'N'){
$('#secondaryInput').hide();
} else {
$('#secondaryInput').show();
}
});
Then I take the value from the database (this is used on a form for both new input and editing...
What's the difference of $host and $http_host in Nginx
In Nginx, what's the difference between variables $host and $http_host .
1 Answer
1...
How to get the current user in ASP.NET MVC
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If you need to get the user from within the controller, use the User property of Controller. If you need it from the view, I would populate what you specifically need in the ViewData, or you could just call User as I think it...
Shortcut to open file in Vim
I want to open a file in Vim like in Eclipse using Ctrl + Shift + R , or via the Ctrl + N option of autofill. Invoke a keyboard shortcut, type the file name/pattern, and choose from all the matching files names.
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Differences between Microsoft .NET 4.0 full Framework and Client Profile
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What's new in .NET Framework 4 Client Profile RTM explains many of the differences:
When to use NET4 Client Profile and when to use NET4 Full Framework?
NET4 Client Profile:
Always target NET4 Client Profile for all your client desktop applications (including Windows Forms and WPF apps).
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Placement of the ng-app directive (html vs body)
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There is no big difference where you put ng-app.
If you put it on <body> then you have a smaller scope for AngularJS which is slightly faster.
But I have used ng-app on the <html> for manipulating the <title>.
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Make copy of an array
...,2,3,4,5] . I need to make an exact duplicate copy of a and call it b . If a were to change to [6,7,8,9,10] , b should still be [1,2,3,4,5] . What is the best way to do this? I tried a for loop like:
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NUnit Unit tests not showing in Test Explorer with Test Adapter installed
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If your test project is set to target a 64bit platform, the tests won't show up in the NUnit Test Adapter.
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How to convert std::string to LPCSTR?
...(wide) string - const wchar_t *
LPTSTR - (long) pointer to TCHAR (Unicode if UNICODE is defined, ANSI if not) string - TCHAR *
LPCTSTR - (long) pointer to constant TCHAR string - const TCHAR *
You can ignore the L (long) part of the names -- it's a holdover from 16-bit Windows.
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