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grailsormgrails-ormfetching-strategy

Grails automatic relational fetching

Is is possible to do automatic relation fetching in GORM / Grails?

class Person {
    static hasMany = [cars : Car]
}
class Car {
    static belongsTo = [owner : Person]
}

Then use this relation like:

person = Person.get(1);
person.cars.each() { print it; }
Solution

  • You can enable eager fetching this way:

    static mapping = {
   cars fetch: 'join'
}

    See http://grails.org/doc/latest/ref/Database%20Mapping/fetch.html