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11 Creating i18n messages - Reference Documentation

Authors: Alejandro García Granados

Version: 0.4

11 Creating i18n messages

Grails lets you customize the labels of your domain classes' fields, plus the error messages of their constraints. In most cases, your application doesn't use the default messages provided by Grails, and you have to write every message by hand.

Optimus Plugin helps you with the generation of the keys for these messages by executing the create-i18n command:

grails create-i18n [domainClass]

This command modifies your grails-app/i18n/messages.properties by appending the corresponding messages. Suppose you have a domain class like this:

package mypackageclass Person {
    String name
    String lastName
    Date birthdate
    Boolean enabled
    static constraints = {
        name blank:false, size:1..100
        lastName blank:false, size:1..100
    }
}

With the create-i18n command, you will get the following i18n messages:

# Person messages
person.label=Person
person.birthdate.label=Birthdate
person.enabled.label=Enabled
person.lastName.label=Last Name
person.name.label=Name
person.name.blank=Property [name] of class [mypackage.Person] cannot be blank
person.name.size.toosmall=Property [name] of class [mypackage.Person] with value [{2}] should be greater than [{3}] characters
person.name.size.toobig=Property [name] of class [mypackage.Person] with value [{2}] should be less than [{4}] characters
person.name.nullable=Property [name] of class [mypackage.Person] cannot be null
person.lastName.blank=Property [lastName] of class [mypackage.Person] cannot be blank
person.lastName.size.toosmall=Property [lastName] of class [mypackage.Person] with value [{2}] should be greater than [{3}] characters
person.lastName.size.toobig=Property [lastName] of class [mypackage.Person] with value [{2}] should be less than [{4}] characters
person.lastName.nullable=Property [lastName] of class [mypackage.Person] cannot be null
person.birthdate.nullable=Property [birthdate] of class [mypackage.Person] cannot be null
person.enabled.nullable=Property [enabled] of class [mypackage.Person] cannot be null

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11 Creating i18n messages

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