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Lift Framework example source code file (ObjectIdField.scala)

This example Lift Framework source code file (ObjectIdField.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

box, full, full, jnothing, jobject, jstring, jvalue, jvalue, objectid, objectid, ownertype, some, string, string

The Lift Framework ObjectIdField.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 mongodb
package record
package field

import scala.xml.NodeSeq

import net.liftweb.common.{Box, Empty, Failure, Full}
import net.liftweb.http.js.JE.{JsNull, JsObj, JsRaw, Str}
import net.liftweb.http.S
import net.liftweb.json.JsonAST._
import net.liftweb.json.Printer
import net.liftweb.record.{Field, FieldHelpers, MandatoryTypedField, Record}
import net.liftweb.util.Helpers._

import org.bson.types.ObjectId

/*
* Field for storing an ObjectId
*/
class ObjectIdField[OwnerType <: BsonRecord[OwnerType]](rec: OwnerType)
  extends Field[ObjectId, OwnerType]
  with MandatoryTypedField[ObjectId]
{

  def owner = rec

  def defaultValue = ObjectId.get

  def setFromAny(in: Any): Box[ObjectId] = in match {
    case oid: ObjectId => setBox(Full(oid))
    case Some(oid: ObjectId) => setBox(Full(oid))
    case Full(oid: ObjectId) => setBox(Full(oid))
    case (oid: ObjectId) :: _ => setBox(Full(oid))
    case s: String => setFromString(s)
    case Some(s: String) => setFromString(s)
    case Full(s: String) => setFromString(s)
    case null|None|Empty => setBox(defaultValueBox)
    case f: Failure => setBox(f)
    case o => setFromString(o.toString)
  }

  def setFromJValue(jvalue: JValue): Box[ObjectId] = jvalue match {
    case JNothing|JNull if optional_? => setBox(Empty)
    case JObject(JField("$oid", JString(s)) :: Nil) => setFromString(s)
    case JString(s) => setFromString(s)
    case other => setBox(FieldHelpers.expectedA("JObject", other))
  }

  def setFromString(in: String): Box[ObjectId] =
    if (ObjectId.isValid(in))
      setBox(Full(new ObjectId(in)))
    else
      setBox(Failure("Invalid ObjectId string: "+in))

  private def elem =
    S.fmapFunc(S.SFuncHolder(this.setFromAny(_))){funcName =>
      <input type="text"
        name={funcName}
        value={valueBox.map(s => s.toString) openOr ""}
        tabindex={tabIndex toString}/>
    }

  def toForm =
    uniqueFieldId match {
      case Full(id) => Full(elem % ("id" -> id))
      case _ => Full(elem)
    }

  def asJs = asJValue match {
    case JNothing => JsNull
    case jv => JsRaw(Printer.compact(render(jv)))
  }

  def asJValue: JValue = valueBox.map(v => Meta.objectIdAsJValue(v, owner.meta.formats)) openOr (JNothing: JValue)
}

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