<?
/*
 * jalan_area_api.php
 * 
 * Copyright (c)2010 ValueCommerce, Co. Ltd.
 */

require_once("access_xml.php");
require_once("config.php");

/**
 * jalan AREA API class.
 * 
 * @author tkumagai
 */
class jalan_area_api extends access_xml {

  	/**
	 * returns array of regions
	 * 
	 * @return array of regions
  	 */
  	public function get_regions() {
    	$xml_segment = parent::get_xml_segment(
    			JALAN_AREA_SEARCH_URL . "?key=" . JALAN_API_KEY,
    			array("Results","Area","Region")
    			);
    	$regions = array();

    	foreach ($xml_segment as $key => $value) {
      		if (preg_match('/attr/',$key)) {
				$regions[$value["cd"]] = $value["name"];
      		}
    	}

  		return $regions;
  	}

  	/**
  	 * returns array of prefectures under the specified region.
  	 * 
  	 * @param string $region_id
  	 * @return array of prefectures
  	 */
  	public function get_prefectures($region_id) {
  		
  		if ($region_id == "01") {
  			return array("010000" => "北海道");
  		} else if ($region_id == "55") {
  			return array("470000" => "沖縄県");
  		}
  		
    	$xml_segment = &parent::get_xml_segment(
    			JALAN_AREA_SEARCH_URL . "?key=" . JALAN_API_KEY . "&reg=" . $region_id,
    			array("Results","Area","Region","Prefecture")
    			);
    	$prefectures = array();

    	foreach ($xml_segment as $key => $value) {
      		if (preg_match('/attr/',$key)) {
				$prefectures[$value["cd"]] = $value["name"];
   	   		}
    	}

    	return $prefectures;
  	}

  	/**
  	 * returns the array of large areas under the specified region
  	 * 
  	 * @param $prefecture_id prefecture ID or (in hokkaido,okinawa's cases, region id)
  	 * @return array of large areas
  	 */
  	public function get_large_areas($prefecture_id) {
  		$xml_segment = &parent::get_xml_segment(
    		JALAN_AREA_SEARCH_URL . "?key=" . JALAN_API_KEY . "&pref=" . $prefecture_id,
    		array("Results","Area","Region","Prefecture","LargeArea")
    		);
  		
		$large_areas = array();
		
    	foreach ($xml_segment as $key => $value) {
      		if (preg_match('/attr/',$key)) {
				$large_areas[$value["cd"]] = $value["name"];
      		}
    	}

	    return $large_areas;
  	}

}

?><?

/*
 * access_xml.php
 * 
 * Copyright (c) 2010 ValueCommerce, Co. Ltd.
 */

require_once("xml.php");

/**
 * accesses url to retrieve a response in xml, then
 * converts it to array tree of strings.
 * 
 * simplexml_load_file() produces strange errors when accessing 
 * JALAN API, so I am using xml.php here.
 * 
 * @author tkumagai
 */
class access_xml {

	/**
	 * accesses http server specified at $url and returns
	 * its contents in string.
	 *  
	 * @param string $url
	 * @param string the contents at $url.
	 */
  	private static function access_http($url) {
    	$response = '';

    	$fp = fopen($url,'r');

    	if ($fp == null) {
      		return null;
    	}

    	while (!feof($fp)) {
      		$buffer = fread($fp,1024);
      		$response .= $buffer;
    	}

    	fclose($fp);
    
    	return $response;
	}

	/**
	 * returns xml contents at $url as array tree of 
	 * strings.
	 *  
	 * @param string $url
	 * @return array tree of strings containing data from xml.
	 */
  	public static function get_xml_object($url) {
    	$xml = self::access_http($url);

    	if ($xml == null) {
      		return null;
    	}

    	return XML_unserialize($xml);
  	}
  
  	/**
  	 * returns segment of xml contents at $url as array tree of strings.
  	 * 
  	 * @param string $url url
  	 * @param array_of_string $element_names top-down name list of xml elements
  	 * @return array tree of strings containing data segment from xml.
	 */
  	public static function &get_xml_segment($url,$element_names) {
  		$xml = self::get_xml_object($url);
  	
	  	if ($xml == null) {
  			return array();
  		}
  	
	  	foreach($element_names as $element_name) {
  			if (!array_key_exists($element_name,$xml)) {
  				return null;
			}	

			$xml = $xml[$element_name];
		}
  	
		return $xml;
	}
}

?><br />
<b>Fatal error</b>:  Uncaught Error: Class 'access_xml' not found in /home/vnao/pub/smart_tabi/models/jalan_large_area_hotels.php:19
Stack trace:
#0 /home/vnao/pub/smart_tabi/hotels_controller.php(8): require_once()
#1 /home/vnao/pub/smart_tabi/large_areas_controller.php(11): require_once('/home/vnao/pub/...')
#2 /home/vnao/pub/smart_tabi/prefectures_controller.php(11): require_once('/home/vnao/pub/...')
#3 /home/vnao/pub/smart_tabi/index_controller.php(14): require_once('/home/vnao/pub/...')
#4 /home/vnao/pub/smart_tabi/index.php(13): require_once('/home/vnao/pub/...')
#5 {main}
  thrown in <b>/home/vnao/pub/smart_tabi/models/jalan_large_area_hotels.php</b> on line <b>19</b><br />