Grails Problem with custom error messages

Question

Hi,

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 to edit the grails-app/i18n/messages.properties file

If I change the following default error codes message, it will correctly display the new error message

default.blank.message=Property [{0}] of class [{1}] cannot be blank

However, this is not what I am trying to do. I need more granular error reporting and have more than one field that can be blank etc. What I would like to be able to do would be, display custom messages for each field in a class

package com.mycompany.myapp

class Test{

 String name
 def constraints = {
 name(nullable:false, blank:false)
 }
}

(following codes appended to end of messages.properties)

test.name.blank=Name cannot be blank
test.name.nullable=Name cannot be nullable

According to the grails documentation this should work correctly, either with or without the package name - className.propertyName.blank

grails.org/doc/latest/ (constraints section) & (section 7.4 - validation & internationalization)

I have tried all comnbinations that I can think of, but it always displays the custom message

I have also tried installing the grails i18n templates plugin

http://www.grails.org/I18n+Templates+Plugin

which generated the error codes automatically for me. I appended the new error codes to the end of the existing messages.properties file but I still get the default error messages.

However, there was something different with the error codes that were generated by the plugin.

instead of the format specified in the grails doc - test.name.null=......, it automatically generated test.name.null.error=Custom Message

I have also tried deleting the default error messages completely, but they are still displayed

If anyone has experienced this issue before, I would appreciate any help that anyone can give me

Thanks in advance

Answer 1

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 2

I use fully qualified class names in my messages.properties

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

Answer 3

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