Grails Problem with custom error messages

Question

I am currently trying to specify custom error messages in grails for the default constraints but so far all I get back is the default error message.

I know that I have t

Answer 1

Well, the documentation shows you an example of how to override the messages for one of the default Validation Constraints (blank, nullable, min, max, size, range, etc.). But it fails to tell you to look in the documentation for each Constraint and at the bottom it shows you what propery key to use:

Error Code: className.propertyName.size.toosmall or className.propertyName.size.toobig

for Constraint size http://grails.org/doc/latest/ref/Constraints/size.html

So, for

package com.example
class User {
    String username

    static constraints = {
        username  size:5..15
    }
}

use:

com.example.User.username.size.toosmall=Yo there! too small: [{0}] of class [{1}] with value [{2}] does not fall within the valid size range from [{3}] to [{4}]

com.example.User.username.size.toobig=Yo there! too big: [{0}] of class [{1}] with value [{2}] does not fall within the valid size range from [{3}] to [{4}]

Answer 2

I use fully qualified class names in my messages.properties

com.shareyourlove.User.password.blank=Some custom message

Answer 3

This worked for me

com.model.Customer.name.nullable.error = Custom message

instead of

com.model.Customer.name.blank = Custom message

Answer 4

It might be that your constraints aren't static - it should be specified as "static constraints = { ..."

Also note that nullable defaults to false so you don't need to specify that.

Answer 5

put def messageSource (in controller or service)

item.errors?.allErrors?.each{ 
println  messageSource.getMessage(it, null)
};

I also found a good link which explains this better

http://johnrellis.blogspot.com/2010/02/retrieve-grails-domain-errors-from.html