slick

I have the (working) following code: val actions = (for { _ <- slickUsers.insertOrUpdate(dbUser) loginInfo <- loginInfoAction _ <- slickUserLoginInfos += DBUserLoginInfo(dbUser.userID, loginInfo.id.get) } yield ()).transactionally with loginInfoAction being a DBIOAction. I would like to change loginInfoActions to a Seq of DBIOAction and for each of them, execute the same DBUserLoginInfo action afterwards. I tried this stupidly: val actions = (for { _ <- slickUsers.insertOrUpdate(dbUser) loginInfoAction <- loginInfoActions loginInfo <- loginInfoAction _ <- slickUserLoginInfos += DBUserLoginInfo

I'm using slick to access database. I want to query like this: case class Coupon(couponId: Long, shopId: String) class Coupons(tag: Tag) extends Table[Coupon](tag, "coupons"){ def couponId = column[Long]("coupon_id") def shopId = column[String]("shop_id") override def * = (couponId, shopId) <> (Coupon.tupled, Coupon.unapply) } object Coupons extends TableQuery(new Coupons(_)){ def findCouponBy(couponId: Long, shopId: Option[String]) = { val s = DB.createSession() try { val q = for { coupon <- this.filter(c => c.couponId === couponId && shopId.map(s => c.shopId === s).getOrElse(true) } yield

I'm looking at scala/slick streaming, and trying to understand how it works. Here is my test code val bigdata = TableQuery[BigData] val x = db.stream(bigdata.result.transactionally.withStatementParameters(fetchSize = 100)).foreach { (tuple: (Int, UUID)) => println(tuple._1 + " " + tuple._2) Thread.sleep(50)//emulating slow consumer. } Await.result(x, 100000 seconds) While the code is running I enabled postgresql query log to understand whats going under the hood. I see a re-query happening every 100 elements 2015-11-06 15:03:24 IST [24379-3] postgres@scala_test LOG: execute fetch from S_2/C_3:

I'm having some difficulties querying/filtering in Slick 2.1.0 when using a custom column type. A simplified version of my problem: import scala.slick.driver.MySQLDriver.simple._ sealed class Status(val intValue: Int) case object Active extends Status(1) case object Disabled extends Status(2) case object Deleted extends Status(3) case class TableMapping(id: Long, status: Status) class MyTableDefinition(tag: Tag) extends Table[TableMapping](tag, "sometable") { implicit val statusColumnType = MappedColumnType.base[Status, Int](statusToInt, intToStatus) def id = column[Long]("ID", O.PrimaryKey, O

Maybe a silly question. But I have not found an answer so far. So how do you represent the SQL's "LIKE" operator in SLICK ? Exactly as you normally would! val query = for { coffee <- Coffees if coffee.name like "%expresso%" } yield (coffee.name, coffee.price) Will generate SQL like SELECT name, price FROM coffees WHERE NAME like '%expresso%'; 来源： https://stackoverflow.com/questions/14700821/how-to-use-sql-like-operator-in-slick

I have SQL table inheritance implemented this way: Table Shape: Column | Type ------------+--------- shape_id | integer square | foat name | character varying(64) Table Triangle Column | Type ------------+--------- shape_id | integer a | float b | float c | float Foreign-key constraints: "fkey1" FOREIGN KEY (shape_id) REFERENCES Shape(shape_id) Table Circle Column | Type ------------+--------- shape_id | integer r | float Foreign-key constraints: "fkey2" FOREIGN KEY (shape_id) REFERENCES Shape(shape_id) Is it possible with slick to create class model where Triangle extends Shape and Circle