Grails Query with parent - grails

Question

If I have four domain classes like this:
class Branch {
String name
static hasMany = [users:Users]
static mappedBy = [users:'branch']
static mapping = {
id column: 'f_branch_id'
name column: 'f_name'
}
}
class Users {
String name
static hasMany = [account:Account]
static mappedBy = [account:'user']
static belongsTo= [branch:Branch, title:Title]
static mapping = {
id column: 'f_user_id',
name column: 'f_name',
branch column: 'k_branch_id'
}
}
class Account {
String username
static belongsTo = [user:Users]
static mapping = {
id column: 'f_account_id'
user column: 'f_user_id'
username column: 'f_username'
}
}
class JoinTable implements Serializable {
Account account
Role role
static mapping = {
id composite : ['role', 'account']
role column :'k_role_id'
account column :'k_account_id'
version false
}
}
How can i get branch from JoinTable using criteria query
i try this process but fail for alias problem
def criteria = JoinTable.createCriteria()
def list = criteria.list {
account {
user{
branch{
eq("id", "2")
}
}
}
}

Answer 1

Domains
class Branch {
String name
static hasMany = [users:Users]
static mapping = {
id column: 'f_branch_id'
name column: 'f_name'
}
}
class Title {
...
}
class Users {
String name
static hasMany = [account:Account]
static belongsTo= [branch:Branch, title:Title]
static mapping = {...}
}
class Account {
String username
static belongsTo = [user:Users]
static mapping = {...}
}
class Role {
...
}
class JoinTable implements Serializable {
Account account
Role role
static mapping = {
id composite : ['role', 'account']
role column :'k_role_id'
account column :'k_account_id'
version false
}
}
Test
#TestMixin(GrailsUnitTestMixin)
#Mock([Act, Branch, Title, Users, Account, Role, JoinTable])
class EaseTests {
void testCriteria(){
10.times{
def b = new Branch().save(validate:false, flush:true)
10.times{
def u = new Users(branch:b).save(validate:false, flush:true)
10.times{
def a = new Account(user:u).save(validate:false, flush:true)
def joinTableRow = new JoinTable(account: a).save(validate:false, flush:true)
}
}
}
def c = JoinTable.createCriteria()
def results = c{
account{
user {
branch{
idEq(2l)
}
}
}
}
assert results
}
}