StringIndexOutOfBoundsException on get function in GORM - mysql

Question

I'm getting StringIndexOutOfBoundsException when i try to retrieve domain class object using get function in GORM.
DOMAIN CLASS
class Connect {
int id
long profileid
String username
char type
char superSub
String time
char class_
boolean isapilogin
static mapping = {
table "CONNECT"
version false
id column: "ID"
profileid column: "PROFILEID"
username column: "USERNAME"
type column: "TYPE"
superSub column: "SUPER_SUB"
time column: "TIME"
class_ column: "CLASS"
isapilogin column: "ISAPILOGIN"
}
static constraints = {
username maxSize: 40
type maxSize: 1
superSub maxSize: 1
time maxSize: 14
class_ maxSize: 1
}
}
MYSQL DATABASE TABLE
ID | int(10) unsigned
PROFILEID | bigint(20) unsigned
USERNAME | varchar(40)
TYPE | char(1)
SUPER_SUB | char(1)
TIME | varchar(14)
CLASS | char(1)
ISAPILOGIN | tinyint(1)
MYCONTROLLER
class DemoController {
def check() {
int id = 1001;
Connect data = Connect.get(id) // exception at this line
data.save()
render "check"
}
}
MYSQL TABLE DATA
ID PROFILEID |USERNAME | TYPE | SUPER_SUB | TIME |CLASS|ISAPILOGIN
1001 | 4 | ABHINAV | | P | 1461235989 | A | 0
1002 | 5 | GAVAN | S | P |1450155084 | A | 1
the exception is coming when i call get on ID 1001 and not coming on ID 1002. The reason i think is that for ID 1001 the type column has an empty value or space but for ID 1002 type has a char value 'S'.In my table i have a lots of rows with empty values so what i can do to avoid this exception?.

Answer 1

I think you should remove "id" field from domain class.

Answer 2

Make sure you indicate which attributes are nullable in constraint clause. In your case attribute superSub can be null:
superSub nullable: true, maxSize: 1
If you don't indicate nullable attribute in constraint clause, explicitly, Grails expect a value for those.