Ineer Join query with where in scala slick

问题

I have two tables address ,UserAddressMapping in Adress table Adrressid ,Address is there and in the third table i mapped this userid and Addresss id

In sql

Select a.Addressid,a.AddressNmae 
from address table a 
inner join UserAdrressmaping b on a.Adessressid=b.Adreesid 
where userid=1

How to write this thing in Scala slick This is far what i have done

   def innerJoin1(UserId:Int): Future[Seq[UserRegister]]  =  {
 val join=address.join(addressid).on(_.Userid === _.UserId)

    dbConfig.run(join.result )
  }

回答1:

For inner join you could use slick applicative-join with filter clause. For example:

val query = for {
  (address, userAddressMapping) <- Address join UserAddressMapping on (_.id === _.addressId)
  if userAddressMapping.userId === 1
} yield (address.id, address.name)

dbConfig.run(query.result)

回答2:

Just an addition to the previous one. If you happen to have BigDecimal for Id, do not forget to cast it:

if p.userId === BigDecimal.valueOf(42)

来源：https://stackoverflow.com/questions/51910691/ineer-join-query-with-where-in-scala-slick