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slick-additions-codegen

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package slick.additions

import scala.util.Try

import slick.jdbc.meta.MColumn


package object codegen {
  def snakeToCamel(s: String) = {
    def loop(cs: List[Char]): List[Char] =
      cs match {
        case '_' :: c :: rest => c.toUpper :: loop(rest)
        case c :: rest        => c :: loop(rest)
        case Nil              => Nil
      }

    loop(s.toList).mkString
  }

  class TryExtractor[A](f: String => A) {
    def unapply(string: String) = Try(f(string)).toOption
  }
  val AsBoolean = new TryExtractor(_.toBoolean)
  val AsInt    = new TryExtractor(_.toInt)
  val AsDouble = new TryExtractor(_.toDouble)

  object ColType {
    def unapply(col: MColumn) = Some((col.sqlType, col.typeName.toLowerCase, col.columnDef))
  }
}