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@UniqueConstraint and @Column(unique = true) in hibernate annotation
...nd tries to insert another record with mask.id = 1, you'll get an error, because that column should have unique values. The same aplies for group.
On the other hand,
@Table(
name = "product_serial_group_mask",
uniqueConstraints = {@UniqueConstraint(columnNames = {"mask", "group"})}
)
Impl...
How to use JavaScript variables in jQuery selectors?
...
var name = this.name;
$("input[name=" + name + "]").hide();
OR you can do something like this.
var id = this.id;
$('#' + id).hide();
OR you can give some effect also.
$("#" + this.id).slideUp();
If you want to remove the entire element permanently form the page.
$("#" + this.id).remov...
Jquery selector input[type=text]')
I wrote a code that basically selects all input type=text element like this:
4 Answers
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What is the “__v” field in Mongoose
... configurable. The
default is __v.
If this conflicts with your application you can configure as such:
new Schema({..}, { versionKey: '_somethingElse' })
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Is it possible to use getters/setters in interface definition?
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You can specify the property on the interface, but you can't enforce whether getters and setters are used, like this:
interface IExample {
Name: string;
}
class Example implements IExample {
private _name: string = "Bob...
Returning first x items from array
I want to return first 5 items from array. How can I do this?
5 Answers
5
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How to branch with TortoiseHG
I downloaded TortoiseHg 1.0 for evaluation. For the life of me I can't figure out how to make a branch. It seems to understand branches (e.g. in its repository browser) but I just can't seem to find a way to make a branch. This seems like such a fundamental capability since out of the often toute...
CFLAGS vs CPPFLAGS
...xpands the variables. As both CPPFLAGS and CFLAGS are used in the compiler call, which you use to define include paths is a matter of personal taste. For instance if foo.c is a file in the current directory
make foo.o CPPFLAGS="-I/usr/include"
make foo.o CFLAGS="-I/usr/include"
will both call you...
How do I explicitly instantiate a template function?
...te function with one argument.
I have to instantiate that function without calling that function means explicitly I have to instantiate.
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What makes JNI calls slow?
I know that 'crossing boundaries' when making a JNI call in Java is slow.
3 Answers
3
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