光滑的编译查询 [英] Compiled Querys in Slick
本文介绍了光滑的编译查询的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要使用Play和PostgreSQL在Slick中编译查询
I need to compile a query in Slick with Play and PostgreSQL
val bioMaterialTypes: TableQuery[Tables.BioMaterialType] = Tables.BioMaterialType
def getAllBmts() = for{ bmt <- bioMaterialTypes } yield bmt
val queryCompiled = Compiled(getAllBmts _)
但是在Scala IDE中,我在应用编译"中遇到此错误
but in Scala IDE I get this error in the Apply of Compiled
Multiple markers at this line
- Computation of type () => scala.slick.lifted.Query[models.Tables.BioMaterialType,models.Tables.BioMaterialTypeRow,Seq]
cannot be compiled (as type C)
- not enough arguments for method apply: (implicit compilable: scala.slick.lifted.Compilable[() =>
scala.slick.lifted.Query[models.Tables.BioMaterialType,models.Tables.BioMaterialTypeRow,Seq],C], implicit driver:
scala.slick.profile.BasicProfile)C in object Compiled. Unspecified value parameters compilable, driver.
这是我的进口货
import scala.concurrent.Future
import scala.slick.jdbc.StaticQuery.staticQueryToInvoker
import scala.slick.lifted.Compiled
import scala.slick.driver.PostgresDriver
import javax.inject.Inject
import javax.inject.Singleton
import models.BioMaterialType
import models.Tables
import play.api.Application
import play.api.db.slick.Config.driver.simple.TableQuery
import play.api.db.slick.Config.driver.simple.columnExtensionMethods
import play.api.db.slick.Config.driver.simple.longColumnType
import play.api.db.slick.Config.driver.simple.queryToAppliedQueryInvoker
import play.api.db.slick.Config.driver.simple.queryToInsertInvoker
import play.api.db.slick.Config.driver.simple.stringColumnExtensionMethods
import play.api.db.slick.Config.driver.simple.stringColumnType
import play.api.db.slick.Config.driver.simple.valueToConstColumn
import play.api.db.slick.DB
import play.api.db.slick.DBAction
推荐答案
您可以轻松完成
val queryCompiled = Compiled(bioMaterialTypes)
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