如何使用phantom for Scala在Cassandra中创建表?

问题描述

我正在尝试在 https://github.com/websudos/phantom/blob/develop/phantom-example/src/main/scala/com/websudos/phantom/example/basics/SimpleRecipes.斯卡拉，因此我创建了一个食谱并尝试使用 insertNewRecord(myRecipe)插入它，并得到以下异常: .... InvalidQueryException:未配置的列家族my_custom_table .我使用cqlsh进行了检查，并创建了键空间，但没有创建表.

I am trying to run the example on https://github.com/websudos/phantom/blob/develop/phantom-example/src/main/scala/com/websudos/phantom/example/basics/SimpleRecipes.scala,So I created a Recipe and tried to insert it using insertNewRecord(myRecipe) and got the following exception: ....InvalidQueryException: unconfigured columnfamily my_custom_table.I checked using cqlsh and the keyspace was created but the table was not.

所以我的问题是，如何使用幻像创建表?在任何示例代码中都没有提到这一点，我也无法通过查看幻像源代码来弄清楚.

So my question is, how do I create the table using phantom?This is never mentioned in any of the example code and I also could not figure it out by going over the phantom source code.

推荐答案

您需要使用架构自动生成功能创建表.只需执行:

You need to create the table using schema autogeneration. Simply execute:

import scala.concurrent.ExecutionContext.Implicits.global
import scala.concurrent.duration._
import com.websudos.phantom.dsl._


// To execute this, you need an implicit keySpace and a session.
Await.ready(SimpleRecipes.create.ifNotExists().future(), 3.seconds)

这篇关于如何使用phantom for Scala在Cassandra中创建表?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！