How to get value of a domain constraint in Grails?

Question

I have a text field whose length I would like to limit at the maxSize constraint of one of my domain classes.

So if I have a class foo:

class Foo {
    String bar

    static constraints = {
        bar(maxSize: 100)
    }
}

I would like to get that value of 100 for the property bar. Is this possible?

Heliotropin

Answer 1

You should be able to do:

def maxBarSize = Foo.constraints.bar.getAppliedConstraint( 'maxSize' ).maxSize

Doily

Checkout "Programmatic access" section in docs.grails.org/latest/ref/Constraints/Usage.html for modern Grails > 3 – Sistrunk

Answer 2

I was having this issue in grails 3.1.8 and it has change a bit. at least in the gsp views I had to put this:

Foo.constrainedProperties ['bar']['maxSize']

Hope this help! Cheers!

Canonist

Checkout "Programmatic access" section in docs.grails.org/latest/ref/Constraints/Usage.html – Sistrunk

Answer 3

Check the following code:

def foo = new Foo(bar: "stuff")
println foo.constraints.bar.maxSize

Windmill