DatePicker.php

<?php
/***********************************************************
  ..

  Reference:
  http://agiletoolkit.org/doc/ref

==ATK4===================================================
   This file is part of Agile Toolkit 4
    http://agiletoolkit.org/

   (c) 2008-2013 Agile Toolkit Limited <info@agiletoolkit.org>
   Distributed under Affero General Public License v3 and
   commercial license.

   See LICENSE or LICENSE_COM for more information
=====================================================ATK4=*/
/**
 * Text input with Javascript Date picker
 * It draws date in locale format (taken from $config['locale']['date'] setting) and stores it in
 * MySQL acceptable date format (YYYY-MM-DD)
 */
class Form_Field_DatePicker extends Form_Field_Line {
    public $options=array();
    function init(){
        parent::init();
        $this->addButton('',array('options'=>array('text'=>false)))
            ->setHtml('&nbsp;')
            ->setIcon('ui-icon-calendar')
            ->js('click',$this->js()->datepicker('show'));
        $this->js('focus', $this->js()->datepicker('show'));
    }
    function getInput($attr=array()){
        // $this->value contains date in MySQL format
        // we need it in locale format

        $this->js(true)->datepicker(array_merge(array(
                        'duration'=>0,
                        'showOn'=>'none',
            //          'buttonImage'=>$this->api->locateURL('images','calendar.gif'),
                //      'buttonImageOnly'=> true,
                        'changeMonth'=>true,
                        'changeYear'=>true,
                        'dateFormat'=>$this->api->getConfig('locale/date_js','dd/mm/yy')
                        ),$this->options));

        return parent::getInput(array_merge(
                    array(
                        'value'=>$this->value?(date($this->api->getConfig('locale/date','d/m/Y'),strtotime($this->value))):'',
                         ),$attr
                    ));
    }
    function set($value){
        // value can be valid date format, as in config['locale']['date']
        if(!$value)return parent::set(null);
        @list($d,$m,$y)=explode('/',$value);
        if($y)$value=join('/',array($m,$d,$y));
        elseif($m)$value=join('/',array($m,$d));
        $value=date('Y-m-d',strtotime($value));
        return parent::set($value);
    }
    function get(){
        $value=parent::get();
        // date cannot be empty string
        if($value=='')return null;
        return $value;
    }
}