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Setting default values for columns in JPA
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Actually it is possible in JPA, although a little bit of a hack using the columnDefinition property of the @Column annotation, for example:
@Column(name="Price", columnDefinition="Decimal(10,2) default '100.00'")
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Testing if a checkbox is checked with jQuery
... you write the extension once, and for the rest of time, you only call the API $(someradio).realVal(), you don't need write a extension many times.
– alphakevin
Jun 12 '16 at 9:08
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Why would you use Expression rather than Func?
...ment and submits it to server (rather than executing the lambda).
Conceptually, Expression<Func<T>> is completely different from Func<T>. Func<T> denotes a delegate which is pretty much a pointer to a method and Expression<Func<T>> denotes a tree data structure f...
FragmentPagerAdapter getItem is not called
...sing destroyItem() method, It is deleting the fragment but still does not called getItem() again..There are just 2-3 Images so I am using FragmentPagerAdapter Instead of FragmentStatePagerAdapter..
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How do you remove duplicates from a list whilst preserving order?
...n seen or seen_add(x))]
Why assign seen.add to seen_add instead of just calling seen.add? Python is a dynamic language, and resolving seen.add each iteration is more costly than resolving a local variable. seen.add could have changed between iterations, and the runtime isn't smart enough to rule t...
Installing PG gem on OS X - failure to build native extension
It seems many others have had problems installing the pg gem. None of the solutions posed for others have worked for me.
1...
Calling startActivity() from outside of an Activity?
...Please understand the difference between setFlags() and addFlag() methods. All you are doing now is launching an activity with FLAG_ACTIVITY_NEW_TASK. As in the code posted by Cristian below.
– JehandadK
Mar 21 '12 at 5:18
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Memoization in Haskell?
...tion (fix)
Let's define f, but make it use 'open recursion' rather than call itself directly.
f :: (Int -> Int) -> Int -> Int
f mf 0 = 0
f mf n = max n $ mf (n `div` 2) +
mf (n `div` 3) +
mf (n `div` 4)
You can get an unmemoized f by using fix f
This...
How to bind an enum to a combobox control in WPF?
I am trying to find a simple example where the enums are shown as is. All examples I have seen tries to add nice looking display strings but I don't want that complexity.
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Change Bootstrap input focus blue glow
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You can use the .form-control selector to match all inputs. For example to change to red:
.form-control:focus {
border-color: #FF0000;
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 0.6);
}
Put it in your custom css file and load it after ...