在grails 2.4.3升级之后,与boolean相关的不必要的数据库changeSet

Question

我正在使用postgres数据库.在升级到grails 2.4.3之后,我获得了所有布尔字段的此类型的数据库更改集:

changeSet(author: "me(generated)", id: "1383573084784-1") {
    addColumn(tableName: "chapter") {
        column(defaultValue: true, name: "is_framable", type: "boolean") {
            constraints(nullable: "false")
        }
    }
}

isFramable是boolean域类中的一个字段Chapter.即使在运行此迁移之后,它也会每次生成dbm-gorm-diff

我注意到在旧版本的grails中,曾经有过bool而不是boolean在更改集中

我正在使用hibernate版本4.3.5.5

Answer 1

我的解决方法：

配置.groovy

grails.gorm.default.mapping = {
    "user-type" type: my.hibernate.type.BooleanBitType, class: boolean
    "user-type" type: my.hibernate.type.BooleanBitType, class: Boolean
}

BooleanBitType.java

import my.hibernate.type.descriptor.BooleanBitTypeDescriptor;
import org.hibernate.type.descriptor.java.BooleanTypeDescriptor;
import org.hibernate.type.descriptor.sql.SqlTypeDescriptor;

public class BooleanBitType extends org.hibernate.type.BooleanType {
    public static final BooleanBitType INSTANCE = new BooleanBitType();

    public BooleanBitType() {
        this(BooleanBitTypeDescriptor.INSTANCE, BooleanTypeDescriptor.INSTANCE);
    }

    protected BooleanBitType(SqlTypeDescriptor sqlTypeDescriptor, BooleanTypeDescriptor javaTypeDescriptor) {
        super(sqlTypeDescriptor, javaTypeDescriptor);
    }
}

BooleanBitTypeDescriptor.java

public class BooleanBitTypeDescriptor extends org.hibernate.type.descriptor.sql.BooleanTypeDescriptor {
    public static final BooleanBitTypeDescriptor INSTANCE = new BooleanBitTypeDescriptor();

    public BooleanBitTypeDescriptor() {
        super();
    }

    public int getSqlType() {
        return Types.BIT;
    }
}