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Difference between ActionBarSherlock and ActionBar Compatibility
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An additional config was necessary on sherlock app:
<style name="AppBaseTheme" parent="Theme.Sherlock.Light.DarkActionBar">
UPDATE:
as @rudy-s said, with newest android support library (api 18), I saw they already have built-in support for actionbar (called ActionBarCompat class).
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Find rows with multiple duplicate fields with Active Record, Rails & Postgres
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If you need the full models, try the following (based on @newUserNameHere's answer).
User.where(email: User.select(:email).group(:email).having("count(*) > 1").select(:email))
This will return the rows where the email address of the row is not unique.
I'm not aware ...
How to loop through a directory recursively to delete files with certain extensions
...ur filenames, then that won't work either. You're better off with an xargs based solution:
find /tmp \( -name '*.pdf' -or -name '*.doc' \) -print0 | xargs -0 rm
(The escaped brackets are required here to have the -print0 apply to both or clauses.)
GNU and *BSD find also has a -delete action, whi...
Java: Detect duplicates in ArrayList?
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@PaulJackson Sizing based on the full list will probably be beneficial. However if the common case is for it to find a duplicate early then the space was wasted. Also even sizing the HashSet to the size of the list will result in resizing when r...
Get controller and action name from within controller?
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Add this to your base controller inside GetDefaults() method
protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
GetDefaults();
base.OnActionExecuting(filterContext);
}
private...
delete vs delete[] operators in C++
...one then in the global scope.
For the delete, if the pointer passed is a base class of the actual object's type, the base class must have a virtual destructor (otherwise, behavior is undefined). If it is not a base class, then the destructor of that class is called, and an operator delete in that ...
Why does the lock object have to be static?
...ity. Sometimes that is static. More often, IMO, it isn't - but is instance based.
The main time you see a static lock is for a global cache, or for deferred loading of global data / singletons. And in the latter, there are better ways of doing it anyway.
So it really depends: how is Locker used in...
Returning the product of a list
...case it returns a result of type numpy.int64 while Ian Clelland's solution based on operator.mul and reduce works for large integer results because it returns long.
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Android and setting width and height programmatically in dp units
...nteger pixels for use as a size. A
size conversion involves rounding the base value, and ensuring that a
non-zero base value is at least one pixel in size.
Yes it rounding the value but it's not very bad(just in odd values on hdpi and ldpi devices need to add a little value when ldpi is not ve...
Conventions for exceptions or error codes
...here. The argument against exceptions here takes a hypothetical error-code-based API where all error codes are documented and a hypothetical programmer who reads the documentation, correctly identifies all error cases that are logically possible in her application, and writes code to handle each of ...