scalikejdbc.SQLSyntaxSupportFactory.scala Maven / Gradle / Ivy
package scalikejdbc
import scala.language.experimental.macros
import scalikejdbc.MacroCompatible.Context
object SQLSyntaxSupportFactory {
def apply_impl[A: c.WeakTypeTag](c: Context)(excludes: c.Expr[String]*): c.Expr[SQLSyntaxSupportImpl[A]] = {
import c.universe._
val constParams = EntityUtil.constructorParams[A](c)("SQLSyntaxSupportFactory", excludes: _*).map { field =>
val fieldType = field.typeSignature
val name = field.name.decodedName.toString
q"${field.name.toTermName} = rs.get[$fieldType](rn.field($name))"
}
c.Expr[SQLSyntaxSupportImpl[A]](q"""
new scalikejdbc.SQLSyntaxSupportImpl[${weakTypeTag[A].tpe}] {
override lazy val tableName: String = scalikejdbc.SQLSyntaxSupportFactory.camelToSnake(${weakTypeOf[A].toString})
override lazy val columns: Seq[String] = ${autoColumns.apply_impl(c)(excludes: _*)}
def apply(rn: scalikejdbc.ResultName[${weakTypeTag[A].tpe}])(rs: scalikejdbc.WrappedResultSet): ${weakTypeTag[A].tpe} = new ${weakTypeTag[A].tpe}(..$constParams)
}
""")
}
def camelToSnake(className: String): String = {
val clazz = className.replaceFirst("\\$$", "").replaceFirst("^.+\\.", "").replaceFirst("^.+\\$", "")
SQLSyntaxProvider.toColumnName(clazz, Map.empty, true)
}
def debug_impl[A: c.WeakTypeTag](c: Context)(excludes: c.Expr[String]*): c.Expr[SQLSyntaxSupportImpl[A]] = {
val expr = apply_impl[A](c)(excludes: _*)
println(expr.tree)
expr
}
def apply[A](excludes: String*): SQLSyntaxSupportImpl[A] = macro apply_impl[A]
def debug[A](excludes: String*): SQLSyntaxSupportImpl[A] = macro debug_impl[A]
}