为什么使用带有Scala Slick和Joda DateTime的SQLite3获得SQLITE_ERROR?]

问题描述 投票:2回答:1

所以我在这里使用了漂亮的joda-mapper助手:https://github.com/tototoshi/slick-joda-mapper当使用joda DateTime比较运行查询时,出现错误。

  val today = new DateTime().withTimeAtStartOfDay()
  val yesterday = today.minusDays(1)
val yesterdaysRun = ReportRuns.forReport(report).filter {run => 
  run.runDate >= yesterday && run.runDate < today
}.sortBy(_.runDate.desc).firstOption

如果省略过滤器,此代码运行良好,但是使用过滤器,我得到以下错误:

java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (unrecognized token: "{")
    at org.sqlite.DB.newSQLException(DB.java:383)
    at org.sqlite.DB.newSQLException(DB.java:387)
    at org.sqlite.DB.throwex(DB.java:374)
    at org.sqlite.NativeDB.prepare(Native Method)
    at org.sqlite.DB.prepare(DB.java:123)
    at org.sqlite.PrepStmt.<init>(PrepStmt.java:42)
    at org.sqlite.Conn.prepareStatement(Conn.java:404)
    at org.sqlite.Conn.prepareStatement(Conn.java:399)
    at com.mchange.v2.c3p0.impl.NewProxyConnection.prepareStatement(NewProxyConnection.java:275)
    at scala.slick.jdbc.JdbcBackend$SessionDef$class.prepareStatement(JdbcBackend.scala:123)
    at scala.slick.jdbc.JdbcBackend$BaseSession.prepareStatement(JdbcBackend.scala:297)
    at scala.slick.jdbc.StatementInvoker.results(StatementInvoker.scala:28)
    at scala.slick.jdbc.StatementInvoker.iteratorTo(StatementInvoker.scala:16)
    at scala.slick.jdbc.Invoker$class.foreach(Invoker.scala:97)
    at scala.slick.jdbc.StatementInvoker.foreach(StatementInvoker.scala:9)
    at scala.slick.jdbc.Invoker$class.firstOption(Invoker.scala:44)
    at scala.slick.jdbc.StatementInvoker.firstOption(StatementInvoker.scala:9)
    at scala.slick.jdbc.UnitInvoker$class.firstOption(Invoker.scala:155)
    at scala.slick.driver.JdbcInvokerComponent$UnitQueryInvoker.firstOption(JdbcInvokerComponent.scala:50)
    at service.QueryRunnerService$$anonfun$scheduleReports$1$$anonfun$apply$1.apply(QueryRunnerService.scala:57)
...

想知道是否有人可以为我指出正确的解决方案,这是否可能是joda映射器中的SQL转义错误?还是其他?

下面是此生成的SQL查询(加上格式):

SELECT x2."id", 
       x2."reportid", 
       x2."query", 
       x2."run_date", 
       x2."status", 
       x2."start_time", 
       x2."end_time", 
       x2."error_message", 
       x2."error_details", 
       x2."created_at", 
       x2."updated_at" 
FROM   "report_runs" x2 
WHERE  ( x2."reportid" = 1 ) 
       AND ( ( x2."run_date" >= {ts '2014-03-28 00:00:00.0'} ) 
             AND ( x2."run_date" < {ts '2014-03-29 00:00:00.0'} ) ) 
ORDER  BY x2."run_date" DESC 

因此,我从这里使用光滑的joda-mapper帮助器:https://github.com/tototoshi/slick-joda-mapper,并且在运行具有joda DateTime比较的查询时,出现错误。今天的val =新的DateTime(...

sqlite scala slick typesafe
1个回答
0
投票

这是Joda Mapper(https://github.com/tototoshi/slick-joda-mapper)中的错误。

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