(Quick Reference)
column
Purpose
Customizes a column definition
Examples
static mapping = {
currency column: "currency", sqlType: "char", length: 3
}
Description
Usage:
property_name(map)
Arguments:
column
- The name of the column as a String
sqlType
(optional) - The underlying SQL type
enumType
(optional) - The enum type in for type-safe Enum properties. Either ordinal
or string
.
index
(optional) - The index name
unique
(optional) - Whether it is unique
length
(optional) - The length of the column
precision
(optional) - The precision of the column
scale
(optional) - The scale of the column
By default GORM uses the property name and type to determine how to map a property in the database. For example a
String
property is typically mapped as a
varchar(255)
column. You can customize these with column configuration arguments:
static mapping = {
currency column: "currency", sqlType: "char", length: 3
}
If you use a Hibernate
type that requires multiple column definitions you can use the
column
method to define each column:
static mapping = {
amount type: MonetaryUserType, {
column name: "value"
column name: "currency", sqlType: "char", length: 3
}
}