Lift Framework example source code file (ItemsListSpec.scala)

This example Lift Framework source code file (ItemsListSpec.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

defaultconnectionidentifier, idpk, idpk, itemslist, itemslist, itemslistspec, longkeyedmapper, longkeyedmetamapper, mappedint, sampleitem, sampleitem, specification, specification

The Lift Framework ItemsListSpec.scala source code

/*
 * Copyright 2010-2011 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

import common._
import json._
import util._
import Helpers._
import view._


/**
 * Systems under specification for ItemsList.
 */
object ItemsListSpec extends Specification("ItemsList Specification") {

  val provider = DbProviders.H2MemoryProvider

  def init = {
    provider.setupDB
    Schemifier.destroyTables_!!(DefaultConnectionIdentifier, Schemifier.neverF _,  SampleItem)
    Schemifier.schemify(true, Schemifier.neverF _, SampleItem)
    new ItemsList[SampleItem] {
      def metaMapper = SampleItem
    }
  }
  
  "ItemsList" should {
    "buffer items to save" in {
      val il = init
      il.add
      il.add
      il.add
      il.current.length must_== 0
      il.added.length must_== 3

      il.save
      SampleItem.count must_== 3
      il.current.length must_== 3
    }

    "correctly handle removing an unsaved item" in {
      val il = init
      il.add
      il.add
      il.add
      il.save

      il.add
      il.add
      il.add
      il.remove(il.added(1))
      il.remove(il.added(0))
      il.save
      SampleItem.count must_== 4
      il.added.length must_== 0
      il.removed.length must_== 0
    }
  }
  
}

class SampleItem extends LongKeyedMapper[SampleItem] with IdPK {
  def getSingleton = SampleItem
  object field extends MappedInt(this)
}

object SampleItem extends SampleItem with LongKeyedMetaMapper[SampleItem] {
  var counter = 0
  override def create = {
    val x: SampleItem = super.create
    x.field(counter)
    counter += 1
    x
  }
}