Lift Framework example source code file (OneToManySpecs.scala)

This example Lift Framework source code file (OneToManySpecs.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lift Framework tags/keywords

contact, contact, idpk, idpk, longkeyedmapper, longkeyedmetamapper, longkeyedmetamapper, many, mappedonetomany, mappedstring, onetomany, phone, phone, specification

The Lift Framework OneToManySpecs.scala source code

/*
 * Copyright 2009-2010 WorldWide Conferencing, LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.liftweb {
package mapper {

import org.specs.Specification

object OneToManySpecs extends Specification("One to Many Specification") {

  val provider = DbProviders.H2MemoryProvider

  private def ignoreLogger(f: => AnyRef): Unit = ()
  def setupDB {
    MapperRules.createForeignKeys_? = c => false
    provider.setupDB
    Schemifier.destroyTables_!!(ignoreLogger _,  Contact, Phone)
    Schemifier.schemify(true, ignoreLogger _, Contact, Phone)
  }

  "OneToMany" should {
    "detect all MappedOneToMany fields" in {
      setupDB
      val contact = Contact.create
      val fields = contact.oneToManyFields
      fields.length must_== 1
      fields(0).asInstanceOf[Any] must_== contact.phones
    }
    "cascade delete" in {
      val contact = Contact.create
      contact.phones += Phone.create
      contact.save

      Contact.count must_== 1
      Phone.count must_== 1

      contact.delete_!

      Contact.count must_== 0
      Phone.count must_== 0
    }
  }

}



class Contact extends LongKeyedMapper[Contact] with IdPK with OneToMany[Long, Contact] {
  def getSingleton = Contact
  object phones extends MappedOneToMany(Phone, Phone.contact) with Cascade[Phone]
}
object Contact extends Contact with LongKeyedMetaMapper[Contact]

class Phone extends LongKeyedMapper[Phone] with IdPK {
  def getSingleton = Phone
  object contact extends MappedLongForeignKey(this, Contact)
  object number extends MappedString(this, 10)
}
object Phone extends Phone with LongKeyedMetaMapper[Phone]


}
}