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Database Design for Revisions?
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Do not put it all in one table with an IsCurrent discriminator attribute. This just causes problems down the line, requires surrogate keys and all sorts of other problems.
Design 2 does have problems with schema changes. If you change the Emplo...
How to use SVN, Branch? Tag? Trunk?
...re -- about 20 developers spread across 4 - 6 projects. I didn't find any one good source with ''the answer''. Here are some parts of how our answer has developed over the last 3 years:
-- commit as often as is useful; our rule of thumb is commit whenever you have done sufficient work that it wou...
Enum Naming Convention - Plural
...ontext. We are in agreement that when declaring the enum, which happens in one place, we're thinking "this is a group of whatevers", but when using it, presumably in many places, that we're thinking "this is one whatever".
s...
Starting python debugger automatically on error
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why would anyone prefer code over pdb since the latter seems to expand on the former?
– K3---rnc
Aug 25 '14 at 21:49
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What's the deal with a leading underscore in PHP class methods?
...me in addition to changing the access modifier. No biggie, but a nuisance nonetheless.
– Johan Fredrik Varen
Aug 31 '17 at 8:53
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find vs find_by vs where
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Use whichever one you feel suits your needs best.
The find method is usually used to retrieve a row by ID:
Model.find(1)
It's worth noting that find will throw an exception if the item is not found by the attribute that you supply. Us...
Is ServiceLocator an anti-pattern?
...e error directly, and not at some later temporal point.
Also, author mentioned about unit test difficulties. But, won't we have issues with DI approach?
No. As you do not have a dependency to a static service locator. Have you tried to get parallel tests working with static dependencies? It's not ...
How do I display an alert dialog on Android?
... to the user that shows "Are you sure you want to delete this entry?" with one button that says 'Delete'. When Delete is touched, it should delete that entry, otherwise nothing.
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NullPointerException accessing views in onCreate()
... {
void exampleFragmentCallback();
}
private Button btnOne;
private Button btnTwo;
private Button btnThree;
private Callback callback;
@Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
try
{
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How to count the number of occurrences of an element in a List
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It was introduced in JDK 5 (although no one uses a version before that so it doesn't matter) docs.oracle.com/javase/8/docs/technotes/guides/collections/…
– Minion Jim
Mar 2 '19 at 15:49
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