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Overriding a Rails default_scope
If I have an ActiveRecord::Base model with a default-scope:
9 Answers
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Find MongoDB records where array field is not empty
... $exists: true, $ne: [] } })
Since MongoDB 2.6 release, you can compare with the operator $gt but could lead to unexpected results (you can find a detailled explanation in this answer):
ME.find({ pictures: { $gt: [] } })
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Should methods in a Java interface be declared with or without a public access modifier?
Should methods in a Java interface be declared with or without the public access modifier?
12 Answers
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Forward declaration of a typedef in C++
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edited Jun 4 '12 at 18:53
Simon
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How to clear a notification in Android
Is it possible to clear a notification programatically?
14 Answers
14
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How to change title of Activity in Android?
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Try setTitle by itself, like this:
setTitle("Hello StackOverflow");
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“/usr/bin/ld: cannot find -lz”
... had the exact same error, and like you, installing zlib1g-dev did not fix it. Installing lib32z1-dev got me past it. I have a 64 bit system and it seems like it wanted the 32 bit library.
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How to add custom method to Spring Data JPA
...sider the below example where I will get all the crud and finder functionality working by default and if I want to customize a finder then that can be also done easily in the interface itself.
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Placeholder in UITextView
My application uses an UITextView . Now I want the UITextView to have a placeholder similar to the one you can set for an UITextField .
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Show loading image while $.ajax is performed
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You can, of course, show it before making the request, and hide it after it completes:
$('#loading-image').show();
$.ajax({
url: uri,
cache: false,
success: function(html){
$('.info').append(html);
},
complete: ...