How to use criteria clousure, i need more information about it

[angelique360]

I need to use Restrictions, for example:

Restrictions:
eq
isNotNull

But i dont now how implement in search().list {} clousure

I am trying to do something like this:

def myDomainClasses = Book.search().list {

        criteria{
            Restrictions.isNotNull("id_author")
        }

}

[pabloto88]

Hi @angelique360 , Did you resolve this problem? I have the same issue, I know that there is "Must" and "MustNot" but it doesn't work! I don't know what happen. I'm new in Grails and I'm working with a main entity and 4 childs entities.

[angelique360]

Que onda amigo veo que eres de ecuador, mira a si logre hacer funcionar, ahí te van unos ejemplos:

criteria{
add(Restrictions.isNull("fechaBaja"))
if(aseguradora){
add(Restrictions.eq("aseguradora",aseguradora))
}
}

Saludos desde México