Question

从Grails域类创建mysql表不会以大写字母生成表和列名。表名以小写形式创建。即使使用大写字母对表名进行逆向工程，域类也只以小写形式生成。如何用大写创建表和列名的表？

Answer 1

您可以使用自定义NamingStrategy自定义表名称。默认情况下，Grails使用ImprovedNamingStrategy，但您可以按照文档中的说明使用您的http://grails.org/doc/latest/guide/GORM.html#customNamingStrategy

ImprovedNamingStrategy的这个子类将生成大写名称：

package com.foo.bar

import org.hibernate.cfg.ImprovedNamingStrategy

class UppercaseNamingStrategy extends ImprovedNamingStrategy {

   private static final long serialVersionUID = 1

   String classToTableName(String className) {
      super.classToTableName(className).toUpperCase()
   }

   String collectionTableName(String ownerEntity, String ownerEntityTable, String associatedEntity, String associatedEntityTable, String propertyName) {
      super.collectionTableName(ownerEntity, ownerEntityTable, associatedEntity, associatedEntityTable, propertyName).toUpperCase()
   }

   String logicalCollectionTableName(String tableName, String ownerEntityTable, String associatedEntityTable, String propertyName) {
      super.logicalCollectionTableName(tableName, ownerEntityTable, associatedEntityTable, propertyName).toUpperCase()
   }

   String tableName(String tableName) {
      super.tableName(tableName).toUpperCase()
   }
}

在DataSource.groovy块中的hibernate中指定它：

hibernate {
   ...
   naming_strategy = com.foo.bar.UppercaseNamingStrategy
}

Answer 2

我同意Burt，您还可以添加以下代码，通过覆盖其他方法将数据库中生成的列名更改为大写

public String propertyToColumnName(String propertyName) {
    return super.propertyToColumnName(propertyName).toUpperCase();
}

public String columnName(String columnName) {
    return super.columnName(columnName).toUpperCase();
}

public String joinKeyColumnName(String joinedColumn, String joinedTable) {
    return super.joinKeyColumnName( joinedColumn, joinedTable ).toUpperCase();
}

public String foreignKeyColumnName(String propertyName, String propertyEntityName, String propertyTableName, String referencedColumnName) {
    return super.foreignKeyColumnName(propertyName, propertyEntityName, propertyTableName, referencedColumnName).toUpperCase();
}
public String logicalColumnName(String columnName, String propertyName) {
    return super.logicalColumnName(columnName, propertyName).toUpperCase();
}

public String logicalCollectionColumnName(String columnName, String propertyName, String referencedColumn) {
    return logicalCollectionColumnName(columnName, propertyName, referencedColumn).toUpperCase();
}

Grails + mysql以大写形式创建表名和列名

2 个答案: