grails default constraints

Question

Assume I have a Grails domain object like this:

class Todo {

    String name
    String status

    static constraints = {
        name(blank: false)
    }    
}

What are the default constraints on a field if:

• It's listed in the constraints block e.g. name
• It isn't listed in the constraints block, e.g. status

Answer 1

Yep, Siegfried is right, nullable: false is the only thing that gets set by default. You can take a look at the domain class artefact and interrogate the constrained properties in the console:

grailsApplication.getDomainClass("Todo").constrainedProperties.each { propName, constraints  ->
    println "$propName : ${constraints.appliedConstraints.name}"
}

Prints:

status : [nullable]
priority : [nullable]
name : [blank, nullable]

Answer 2

As far as I know it is only nullable: false in both cases.