(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 StringsqlType (optional) - The underlying SQL typeenumType (optional) - The enum type in for type-safe Enum properties. Either ordinal or string.index (optional) - The index nameunique (optional) - Whether it is unique or notlength (optional) - The length of the columnprecision (optional) - The precision of the columnscale (optional) - The scale of the column
By default GORM uses the property name and type to automatically work out a how to map a particular domain property onto the database. For example a String property is typically mapped onto a varchar(255) column. You can customize these using a method that matches the property name and passing the necessary column configuration arguments:
static mapping = {
currency column: "currency", sqlType: "char", length: 3
}If you are using 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
}
}
