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Why should I use document based database instead of relational database?
...uchDB instead of using relational database.
Are there any typical kinds of applications or domains where the document based database is more suitable than the relational database?
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running Rails console in production
...e:
bundle exec rails console production
...in the webroot of your rails app. That is if you haven't installed the rails package directly on the server yet or if you want to run console within the context of your web app.
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Unique Constraint in Entity Framework Code First
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Unless your app is single-user, I believe a unique constraint is one thing you can't enforce with code alone. You can dramatically reduce the probability of a violation in code (by checking uniqueness prior to calling SaveChanges()), but...
How to hide soft keyboard on android after clicking outside EditText?
...ded Activity and put this method in, and make all other activities in your application extend this activity and call its setupUI() in the onCreate() method.
Hope it helps.
If you use more than 1 activity define common id to parent layout like
<RelativeLayout android:id="@+id/main_parent"> ....
Android Fragment onClick button Method
... return a;
}
}
http://developer.android.com/training/basics/firstapp/starting-activity.html
http://developer.android.com/training/basics/fragments/communicating.html
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Make $JAVA_HOME easily changable in Ubuntu [closed]
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A restart is still needed for these changes to affect apps launched through the Ubuntu UI (i.e. double clicking an app)
– Eric Hu
Feb 12 '13 at 3:15
7
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Draw text in OpenGL ES
... TextView over your SurfaceView. This is slow and bad, but the most direct approach.
Render common strings to textures, and simply draw those textures. This is by far the simplest and fastest, but the least flexible.
Roll-your-own text rendering code based on a sprite. Probably second best choice if...
back button callback in navigationController in iOS
... Jockusch's answer solve this problem with easy trick.
-(void) viewWillDisappear:(BOOL)animated {
if ([self.navigationController.viewControllers indexOfObject:self]==NSNotFound) {
// back button was pressed. We know this is true because self is no longer
// in the navigation stac...
Change string color with NSAttributedString?
...NSForegroundColorAttributeName key, which I had a hard time finding in the Apple docs.
– Erik van der Neut
May 13 '15 at 10:53
6
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Find the extension of a filename in Ruby
I'm working on the file upload portion of a Rails app. Different types of files are handled differently by the app.
4 Answ...