在带有 uuid_generate_v4() 的 postgres 上使用光滑代码生成器时出错
Error when using slick code generator on postgres with uuid_generate_v4()
当我在现有的 postgres 9.3 数据库上使用 slick 代码生成器时，我 运行 遇到了一个错误，该数据库使用 uuid_generate_v4() 自动生成表的 ID。我刚刚开始使用 slick，所以我还不确定这是否是我的代码、我的模式、slick 本身的问题，或者是否支持这种情况。
例如，我有使用如下语句创建的列：
id uuid NOT NULL DEFAULT uuid_generate_v4()
当我 运行 使用 sbt run 的精巧代码生成器时，我得到下面列出的错误。此错误使代码生成器失败，因此不会生成任何代码。
[error] (run-main-0) java.lang.IllegalArgumentException: Invalid UUID string: uuid_generate_v4()
java.lang.IllegalArgumentException: Invalid UUID string: uuid_generate_v4()
at java.util.UUID.fromString(UUID.java:194)
at slick.driver.PostgresDriver$ModelBuilder$$anon$$anonfun$default.applyOrElse(PostgresDriver.scala:75)
at slick.driver.PostgresDriver$ModelBuilder$$anon$$anonfun$default.applyOrElse(PostgresDriver.scala:65)
at scala.PartialFunction$Lifted.apply(PartialFunction.scala:223)
at scala.PartialFunction$Lifted.apply(PartialFunction.scala:219)
at scala.Option.collect(Option.scala:282)
at slick.driver.PostgresDriver$ModelBuilder$$anon.default(PostgresDriver.scala:65)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder$$anonfun$defaultColumnOption.apply(JdbcModelBuilder.scala:254)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder$$anonfun$defaultColumnOption.apply(JdbcModelBuilder.scala:254)
at scala.Option.getOrElse(Option.scala:121)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder.defaultColumnOption(JdbcModelBuilder.scala:253)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder.convenientDefault(JdbcModelBuilder.scala:263)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder.model(JdbcModelBuilder.scala:281)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$columns.apply(JdbcModelBuilder.scala:162)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$columns.apply(JdbcModelBuilder.scala:162)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.Iterator$class.foreach(Iterator.scala:742)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1194)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columns$lzycompute(JdbcModelBuilder.scala:162)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columns(JdbcModelBuilder.scala:162)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columnsByName$lzycompute(JdbcModelBuilder.scala:164)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columnsByName(JdbcModelBuilder.scala:164)
at slick.jdbc.JdbcModelBuilder$ForeignKeyBuilder.buildModel(JdbcModelBuilder.scala:314)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$buildForeignKeys.apply(JdbcModelBuilder.scala:169)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$buildForeignKeys.apply(JdbcModelBuilder.scala:169)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at slick.jdbc.JdbcModelBuilder$TableBuilder.buildForeignKeys(JdbcModelBuilder.scala:169)
at slick.jdbc.JdbcModelBuilder$TableBuilder.buildModel(JdbcModelBuilder.scala:160)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel$$anonfun$apply.apply(JdbcModelBuilder.scala:94)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel$$anonfun$apply.apply(JdbcModelBuilder.scala:94)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.immutable.List.map(List.scala:285)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel.apply(JdbcModelBuilder.scala:94)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel.apply(JdbcModelBuilder.scala:91)
at slick.dbio.DBIOAction$$anonfun$map.apply(DBIOAction.scala:43)
at slick.dbio.DBIOAction$$anonfun$map.apply(DBIOAction.scala:43)
at slick.backend.DatabaseComponent$DatabaseDef$$anonfun$runInContext.apply(DatabaseComponent.scala:146)
at slick.backend.DatabaseComponent$DatabaseDef$$anonfun$runInContext.apply(DatabaseComponent.scala:146)
at scala.concurrent.Future$$anonfun$flatMap.apply(Future.scala:251)
at scala.concurrent.Future$$anonfun$flatMap.apply(Future.scala:249)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
at scala.concurrent.impl.ExecutionContextImpl$AdaptedForkJoinTask.exec(ExecutionContextImpl.scala:121)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:1253)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1346)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
java.lang.RuntimeException: Nonzero exit code: 1
at scala.sys.package$.error(package.scala:27)
at sbt.BuildCommon$$anonfun$toError.apply(Defaults.scala:1943)
at sbt.BuildCommon$$anonfun$toError.apply(Defaults.scala:1943)
at scala.Option.foreach(Option.scala:236)
at sbt.BuildCommon$class.toError(Defaults.scala:1943)
at sbt.package$.toError(package.scala:4)
at f4c3fbf06757612bb06$$anonfun$slickCodeGenTask.apply(build.sbt:27)
at f4c3fbf06757612bb06$$anonfun$slickCodeGenTask.apply(build.sbt:19)
at scala.Function4$$anonfun$tupled.apply(Function4.scala:35)
at scala.Function4$$anonfun$tupled.apply(Function4.scala:34)
at scala.Function1$$anonfun$compose.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon.work(System.scala:63)
at sbt.Execute$$anonfun$submit$$anonfun$apply.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$$anonfun$apply.apply(Execute.scala:226)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:235)
at sbt.Execute$$anonfun$submit.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit.apply(Execute.scala:226)
at sbt.ConcurrentRestrictions$$anon$$anonfun.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
[error] (compile:managedSources) Nonzero exit code: 1
这是我的 sbt 项目的详细信息...
project/build.properties
sbt.version = 0.13.8
project/plugins.sbt
logLevel := Level.Warn
build.sbt
name := "slick_gen_schema_test"
version := "1.0"
scalaVersion := "2.11.7"
libraryDependencies ++= List(
"org.postgresql" % "postgresql" % "9.3-1103-jdbc4",
"com.typesafe.slick" % "slick_2.11" % "3.0.2",
"com.typesafe.slick" % "slick-codegen_2.11" % "3.0.2"
)
slick <<= slickCodeGenTask
sourceGenerators in Compile <+= slickCodeGenTask
lazy val slick = TaskKey[Seq[File]]("gen-tables")
lazy val slickCodeGenTask = (sourceManaged, dependencyClasspath in Compile, runner in Compile, streams) map { (dir, cp, r, s) =>
val outputDir = (dir / "main/slick").getPath
val username = "postgres"
val password = "postgres"
val url = "jdbc:postgresql://10.0.11.13:5432/example"
val jdbcDriver = "org.postgresql.Driver"
val slickDriver = "slick.driver.PostgresDriver"
val pkg = "dao"
toError(r.run("slick.codegen.SourceCodeGenerator", cp.files, Array(slickDriver, jdbcDriver, url, outputDir, pkg, username, password), s.log))
val fname = outputDir + "/dao/Tables.scala"
Seq(file(fname))
}
在这种情况下使用 slick 代码生成器的正确方法是什么？
这是一个 Slick 错误，已在 Slick master (https://github.com/slick/slick/pull/1472) 中修复。
在 Slick 3.2 发布之前，您可以通过将架构更改为没有功能默认值来解决此问题。
当我在现有的 postgres 9.3 数据库上使用 slick 代码生成器时，我 运行 遇到了一个错误，该数据库使用 uuid_generate_v4() 自动生成表的 ID。我刚刚开始使用 slick，所以我还不确定这是否是我的代码、我的模式、slick 本身的问题，或者是否支持这种情况。
例如，我有使用如下语句创建的列：
id uuid NOT NULL DEFAULT uuid_generate_v4()
当我 运行 使用 sbt run 的精巧代码生成器时，我得到下面列出的错误。此错误使代码生成器失败，因此不会生成任何代码。
[error] (run-main-0) java.lang.IllegalArgumentException: Invalid UUID string: uuid_generate_v4()
java.lang.IllegalArgumentException: Invalid UUID string: uuid_generate_v4()
at java.util.UUID.fromString(UUID.java:194)
at slick.driver.PostgresDriver$ModelBuilder$$anon$$anonfun$default.applyOrElse(PostgresDriver.scala:75)
at slick.driver.PostgresDriver$ModelBuilder$$anon$$anonfun$default.applyOrElse(PostgresDriver.scala:65)
at scala.PartialFunction$Lifted.apply(PartialFunction.scala:223)
at scala.PartialFunction$Lifted.apply(PartialFunction.scala:219)
at scala.Option.collect(Option.scala:282)
at slick.driver.PostgresDriver$ModelBuilder$$anon.default(PostgresDriver.scala:65)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder$$anonfun$defaultColumnOption.apply(JdbcModelBuilder.scala:254)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder$$anonfun$defaultColumnOption.apply(JdbcModelBuilder.scala:254)
at scala.Option.getOrElse(Option.scala:121)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder.defaultColumnOption(JdbcModelBuilder.scala:253)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder.convenientDefault(JdbcModelBuilder.scala:263)
at slick.jdbc.JdbcModelBuilder$ColumnBuilder.model(JdbcModelBuilder.scala:281)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$columns.apply(JdbcModelBuilder.scala:162)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$columns.apply(JdbcModelBuilder.scala:162)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.Iterator$class.foreach(Iterator.scala:742)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1194)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columns$lzycompute(JdbcModelBuilder.scala:162)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columns(JdbcModelBuilder.scala:162)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columnsByName$lzycompute(JdbcModelBuilder.scala:164)
at slick.jdbc.JdbcModelBuilder$TableBuilder.columnsByName(JdbcModelBuilder.scala:164)
at slick.jdbc.JdbcModelBuilder$ForeignKeyBuilder.buildModel(JdbcModelBuilder.scala:314)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$buildForeignKeys.apply(JdbcModelBuilder.scala:169)
at slick.jdbc.JdbcModelBuilder$TableBuilder$$anonfun$buildForeignKeys.apply(JdbcModelBuilder.scala:169)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at slick.jdbc.JdbcModelBuilder$TableBuilder.buildForeignKeys(JdbcModelBuilder.scala:169)
at slick.jdbc.JdbcModelBuilder$TableBuilder.buildModel(JdbcModelBuilder.scala:160)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel$$anonfun$apply.apply(JdbcModelBuilder.scala:94)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel$$anonfun$apply.apply(JdbcModelBuilder.scala:94)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.immutable.List.map(List.scala:285)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel.apply(JdbcModelBuilder.scala:94)
at slick.jdbc.JdbcModelBuilder$$anonfun$buildModel.apply(JdbcModelBuilder.scala:91)
at slick.dbio.DBIOAction$$anonfun$map.apply(DBIOAction.scala:43)
at slick.dbio.DBIOAction$$anonfun$map.apply(DBIOAction.scala:43)
at slick.backend.DatabaseComponent$DatabaseDef$$anonfun$runInContext.apply(DatabaseComponent.scala:146)
at slick.backend.DatabaseComponent$DatabaseDef$$anonfun$runInContext.apply(DatabaseComponent.scala:146)
at scala.concurrent.Future$$anonfun$flatMap.apply(Future.scala:251)
at scala.concurrent.Future$$anonfun$flatMap.apply(Future.scala:249)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
at scala.concurrent.impl.ExecutionContextImpl$AdaptedForkJoinTask.exec(ExecutionContextImpl.scala:121)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:1253)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1346)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
java.lang.RuntimeException: Nonzero exit code: 1
at scala.sys.package$.error(package.scala:27)
at sbt.BuildCommon$$anonfun$toError.apply(Defaults.scala:1943)
at sbt.BuildCommon$$anonfun$toError.apply(Defaults.scala:1943)
at scala.Option.foreach(Option.scala:236)
at sbt.BuildCommon$class.toError(Defaults.scala:1943)
at sbt.package$.toError(package.scala:4)
at f4c3fbf06757612bb06$$anonfun$slickCodeGenTask.apply(build.sbt:27)
at f4c3fbf06757612bb06$$anonfun$slickCodeGenTask.apply(build.sbt:19)
at scala.Function4$$anonfun$tupled.apply(Function4.scala:35)
at scala.Function4$$anonfun$tupled.apply(Function4.scala:34)
at scala.Function1$$anonfun$compose.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon.work(System.scala:63)
at sbt.Execute$$anonfun$submit$$anonfun$apply.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$$anonfun$apply.apply(Execute.scala:226)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:235)
at sbt.Execute$$anonfun$submit.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit.apply(Execute.scala:226)
at sbt.ConcurrentRestrictions$$anon$$anonfun.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
[error] (compile:managedSources) Nonzero exit code: 1
这是我的 sbt 项目的详细信息...
project/build.properties
sbt.version = 0.13.8
project/plugins.sbt
logLevel := Level.Warn
build.sbt
name := "slick_gen_schema_test"
version := "1.0"
scalaVersion := "2.11.7"
libraryDependencies ++= List(
"org.postgresql" % "postgresql" % "9.3-1103-jdbc4",
"com.typesafe.slick" % "slick_2.11" % "3.0.2",
"com.typesafe.slick" % "slick-codegen_2.11" % "3.0.2"
)
slick <<= slickCodeGenTask
sourceGenerators in Compile <+= slickCodeGenTask
lazy val slick = TaskKey[Seq[File]]("gen-tables")
lazy val slickCodeGenTask = (sourceManaged, dependencyClasspath in Compile, runner in Compile, streams) map { (dir, cp, r, s) =>
val outputDir = (dir / "main/slick").getPath
val username = "postgres"
val password = "postgres"
val url = "jdbc:postgresql://10.0.11.13:5432/example"
val jdbcDriver = "org.postgresql.Driver"
val slickDriver = "slick.driver.PostgresDriver"
val pkg = "dao"
toError(r.run("slick.codegen.SourceCodeGenerator", cp.files, Array(slickDriver, jdbcDriver, url, outputDir, pkg, username, password), s.log))
val fname = outputDir + "/dao/Tables.scala"
Seq(file(fname))
}
在这种情况下使用 slick 代码生成器的正确方法是什么？
这是一个 Slick 错误，已在 Slick master (https://github.com/slick/slick/pull/1472) 中修复。
在 Slick 3.2 发布之前，您可以通过将架构更改为没有功能默认值来解决此问题。