connecting slick 3.1.1 to the database - scala

Question

I have the following code and I'm trying to connect to the MySQL database without success.
cat Database.scala
package com.github.odnanref.EmailFilter
import slick.driver.MySQLDriver._
import slick.driver.MySQLDriver.backend.Database
/**
* Created by andref on 12/05/16.
*/
class Database {
val url = "jdbc:mysql://localhost/playdb"
val db = Database.forURL(url, driver = "com.mysql.jdbc.Driver")
override def finalize() {
db.close()
super.finalize()
}
}
cat EmailMessageTable.scala
package com.github.odnanref.EmailFilter
import java.sql.Timestamp
import slick.driver.JdbcProfile
import slick.driver.MySQLDriver.api._
import scala.concurrent.Future
class EmailMessageTable(tag: Tag) extends Table[EmailMessage](tag, "email_message") {
def id = column[Option[Long]]("id", O.AutoInc, O.PrimaryKey)
def email = column[String]("email")
def subject = column[String]("subject")
def body = column[String]("body")
def datain = column[Timestamp]("datain")
def email_id= column[Long]("email_id")
def * = (id, email, subject, body, datain, email_id) <> ((EmailMessage.apply _).tupled, EmailMessage.unapply)
def ? = (id.get.?, email.?, subject.?, body.?, datain.?).shaped.<>({ r =>; _1.map(_ =>
EmailMessage.tupled((_1, _2.get, _3.get, _4.get, _5.get))) }, (_: Any) =>
throw new Exception("Inserting into ? projection not supported."))
}
I can't initialize the database and execute search query's or insert statements based on this code I try to do
val db = new Database()
db.db.run(TableQuery[EmailMessageTable] += EmailMessage(...) )
And it says, it doesn't know the method +=
Also I get this error:
Database.scala:4: imported `Database' is permanently hidden by definition of class Database in package EmailFilter
[warn] import slick.driver.MySQLDriver.backend.Database
What am I doing wrong?
Post EDIT>
package com.github.odnanref.EmailFilter
import java.sql.Timestamp
case class EmailMessage(
id: Option[Long],
email: String,
subject:String,
body:String,
datain: Timestamp,
email_id: Long
)

Answer 1

You are importing a class named Database inside a file that defines another class with the same name. You can:
rename your Database class:
class MyDatabase {
val url = ...
val db = ...
...
}
rename imported class:
import slick.driver.MySQLDriver.backend.{Database => SlickDB}
...
val db = SlickDB.forURL(url, driver = "com.mysql.jdbc.Driver")
avoid importing Database explicitly:
import slick.driver.MySQLDriver.backend
...
val db = backend.Database.forURL(url, driver = "com.mysql.jdbc.Driver")