Lift Framework example source code file (PostalCodeField.scala)

This example Lift Framework source code file (PostalCodeField.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

countryfield, countryfield, full, full, list, ownertype, postalcodetypedfield, postalcodetypedfield, record, regex, s, s, stringfield, stringtypedfield, valuetype

The Lift Framework PostalCodeField.scala source code

/*
 * Copyright 2007-2011 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 record
package field

import scala.xml._
import net.liftweb.util._
import net.liftweb.common._
import net.liftweb.http.{S}
import java.util.regex._
import java.util.regex.{Pattern => RegexPattern}
import Helpers._
import S._


trait PostalCodeTypedField extends StringTypedField {
  protected val country: CountryField[_]

  override def setFilter = toUpper _ :: trim _ :: super.setFilter

  override def validations = validatePostalCode _ :: Nil

  def validatePostalCode(in: ValueType): List[FieldError] = country.value match {
    case Countries.USA       => valRegex(RegexPattern.compile("[0-9]{5}(\\-[0-9]{4})?"), S.??("invalid.zip.code"))(in)
    case Countries.Sweden    => valRegex(RegexPattern.compile("[0-9]{3}[ ]?[0-9]{2}"), S.??("invalid.postal.code"))(in)
    case Countries.Australia => valRegex(RegexPattern.compile("(0?|[1-9])[0-9]{3}"), S.??("invalid.postal.code"))(in)
    case Countries.Canada    => valRegex(RegexPattern.compile("[A-Z][0-9][A-Z][ ][0-9][A-Z][0-9]"), S.??("invalid.postal.code"))(in)
    case _ => genericCheck(in)
  }

  private def genericCheck(zip: ValueType): List[FieldError] = {
    toBoxMyType(zip) flatMap {
      case null => Full(Text(S.??("invalid.postal.code")))
      case s if s.length < 3 => Full(Text(S.??("invalid.postal.code")))
      case _ => Empty
    }
  }
}

class PostalCodeField[OwnerType <: Record[OwnerType]](rec: OwnerType, val country: CountryField[OwnerType])
extends StringField(rec, 32) with PostalCodeTypedField

class OptionalPostalCodeField[OwnerType <: Record[OwnerType]](rec: OwnerType, val country: CountryField[OwnerType])
extends OptionalStringField(rec, 32) with PostalCodeTypedField