如何解决SQLDelight:如何动态创建表?
我看到了一些例子,我们可以使用这样的 sq
文件创建一个具有固定名称的表
CREATE TABLE hockeyPlayer (
player_number INTEGER NOT NULL,full_name TEXT NOT NULL
);
我需要在运行时创建具有任意名称的表,我该如何实现?
UPD
在这种情况下,我似乎必须手动执行所有查询(就像在生成的类中完成的那样)
val driver = DatabaseDriverFactory().createDriver(databaseName)
val tableName = "table2"
driver.execute(null,"CREATE TABLE IF NOT EXISTS $tableName (player_number INTEGER NOT NULL,full_name TEXT NOT NULL",null)
解决方法
这是手动/动态表创建和操作的示例
fun test(databaseName: String,key: String?) {
val driver = DatabaseDriverFactory().createDriver(databaseName,key)
val tableName = "table2"
val identifier = 1
// identifier here must be null to avoid SQLiteBindOrColumnIndexOutOfRangeException
// in INSERT statements below
driver.execute(null,"CREATE TABLE IF NOT EXISTS $tableName (player_number INTEGER NOT NULL,full_name TEXT NOT NULL)",null)
var cursor = driver.executeQuery(identifier,"SELECT * FROM $tableName",null)
if (!cursor.next()) {
Napier.i("EMPTY TEST DB")
driver.execute(identifier,"INSERT INTO $tableName (player_number,full_name) VALUES (?,?)",2) {
// indices start here from 1
bindLong(1,1)
bindString(2,"John")
}
driver.execute(identifier,2) {
bindLong(1,2)
bindString(2,"Mike")
}
}
cursor = driver.executeQuery(identifier,null)
while (cursor.next()) {
// indices start here from 0
val number = cursor.getLong(0)
val name = cursor.getString(1)
Napier.i("Player #$number $name")
}
}
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