gistfile1.scala

package ...

import _root_.net.liftweb.mapper._
import _root_.net.liftweb.util._
import _root_.net.liftweb.common._
import _root_.net.liftweb.http._
import _root_.scala.xml.{NodeSeq, Text, Node}
import S._

import _root_.java.text.{DateFormat, SimpleDateFormat}

class MappedDatePicker[T<:Mapper[T]](fieldOwner: T) extends MappedDate(fieldOwner) {
    override def defaultValue = new java.util.Date

    override def _toForm: Box[NodeSeq] = Full(render)

    def render = S.fmapFunc({s: List[String] => this.setFromAny(s)}){funcName =>
        val id = "entrydate" + MappedDatePicker.getNext.toString
        val script = "$(function() {$('#" + id + "').datepicker({dateFormat:'yy/mm/dd'});});"
        <input type='text' id={id} name={funcName} value={toString} maxlength="10" size="12" class="datepicker"/>
        <script type="text/javascript">{script}</script>
    }

    override def toString = MappedDatePicker.toStringFormat.format(is)
    override def asHtml: Node = Text(MappedDatePicker.asHtmlFormat.format(is))
    
    import java.util.Date

    protected def max:Date = null
    protected def min:Date = null

    override def validations = valRange(S.?("wrong_dates")) _ :: super.validations
    import _root_.net.liftweb.util._
    private def valRange(msg: => String)(value: java.util.Date): List[FieldError] =
        if (!(min eq null) && value.before(min) ||
            !(max eq null) && value.after(max)) List(FieldError(this, Text(msg)))
        else Nil
}

class MappedDateRangePicker[T<:Mapper[T]](fieldOwner: T, toDate: MappedDatePicker[T]) extends MappedDatePicker(fieldOwner) with ErrorMessageSupport {
    override def toForm: Box[NodeSeq] = toForm(<div>{render} - {toDate.render}</div>)
    override def asHtml: Node = Text(super.asHtml.text + " - " + toDate.asHtml.text)

    override def validations = valDates(S.?("wrong_dates")) _ :: Nil // super.validations
    private def valDates(msg: => String)(value: java.util.Date): List[FieldError] =
        if (this.after(toDate)) List(FieldError(this, Text(S.?("wrong_dates")))) else Nil
}

object MappedDatePicker {
    def toStringFormat = new java.text.SimpleDateFormat("yyyy/MM/dd")
    def asHtmlFormat = DateFormat.getDateInstance(DateFormat.SHORT)

    private var count = 0
    def getNext = {count += 1; count}
}