Question

我在下面提到的异常中得到了它

迁移未正确处理

Expected:
TableInfo{name='ContactModel', columns={name=Column{name='name', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0},
 number=Column{name='number', type='TEXT', affinity='2', notNull=true, primaryKeyPosition=1}, 
 isVerified=Column{name='isVerified', type='INTEGER', affinity='3', notNull=false, primaryKeyPosition=0},
 age=Column{name='age', type='INTEGER', affinity='3', notNull=false, primaryKeyPosition=0}}, foreignKeys=[], indices=[]}

Found:
TableInfo{name='ContactModel', columns={number=Column{name='number', type='TEXT', affinity='2', notNull=true, primaryKeyPosition=1}, 
isVerified=Column{name='isVerified', type='Boolean', affinity='1', notNull=false, primaryKeyPosition=0},
 name=Column{name='name', type='TEXT', affinity='2', notNull=false, primaryKeyPosition=0},
 age=Column{name='age', type='INTEGER', affinity='3', notNull=true, primaryKeyPosition=0}}, foreignKeys=[], indices=[]}

查询

val migration2 = object : Migration(2, 3) {

    override fun migrate(database: SupportSQLiteDatabase) {
        val migString = "ALTER TABLE ContactModel ADD COLUMN isVerified Boolean"
        database.execSQL(migString)
    }
}

Answer 1

我遇到了同样的问题，而且Room似乎不支持布尔值，因此您的迁移字符串应为：

val migString = "ALTER TABLE ContactModel ADD COLUMN isVerified INTEGER NOT NULL DEFAULT 0"

，然后可以在代码中将其用作布尔值。

迁移无法在Room Android中以布尔值运行

1 个答案: