grails - Hibernate operation exception -

i running grails project. maybe question beginner, still important.

i have domain object, order. in order class model have declared datecreated datetime type using joda-time.

i using:'joda-time:joda-time:2.9.2'

however moment when order.save() called following error:

exception in thread "main" org.springframework.dao.dataintegrityviolationexception: hibernate operation: not execute statement; sql [n/a]; data truncation: data long column 'date_created' @ row 1; nested exception com.mysql.jdbc.mysqldatatruncation: data truncation: data long column 'date_created' @ row 1 

can give me hint going on?

check out solution:

in domain class:

import org.joda.time.* import org.joda.time.contrib.hibernate.*  datetime datecreated datetime lastupdated localdate birthday  static mapping = {     datecreated type: persistentdatetime     lastupdated type: persistentdatetime     birthday type: persistentlocaldate } 

in config.groovy:

grails.gorm.default.mapping = {     "user-type" type: persistentdatetime, class: datetime     "user-type" type: persistentlocaldate, class: localdate } 

or another solution.