| <?php |
| /** |
| * File containing the ezcFeedGeoRssModule class. |
| * |
| * @package Feed |
| * @version //autogentag// |
| * @copyright Copyright (C) 2005-2009 eZ Systems AS. All rights reserved. |
| * @license http://ez.no/licenses/new_bsd New BSD License |
| * @filesource |
| */ |
| |
| /** |
| * Support for the GeoRss module: data container, generator, parser. |
| * |
| * Specifications: {@link http://www.w3.org/2003/01/geo/}. |
| * |
| * Create example: |
| * |
| * <code> |
| * <?php |
| * // $feed is an ezcFeed object |
| * $item = $feed->add( 'item' ); |
| * $module = $item->addModule( 'GeoRss' ); |
| * $module->lat = 26.58; |
| * $module->long = -97.83; |
| * ?> |
| * </code> |
| * |
| * Parse example: |
| * |
| * <code> |
| * <?php |
| * // $item is an ezcFeedEntryElement object |
| * $lat = isset( $item->GeoRss->lat ) ? $item->GeoRss->lat->__toString() : null; |
| * $long = isset( $item->GeoRss->long ) ? $item->GeoRss->long->__toString() : null; |
| * ?> |
| * </code> |
| * |
| * @property ezcFeedTextElement $lat |
| * {@link http://en.wikipedia.org/wiki/WGS84 WGS84} latitude |
| * on the globe as decimal degrees |
| * (eg. 25.03358300). Can also be negative. |
| * @property ezcFeedTextElement $long |
| * {@link http://en.wikipedia.org/wiki/WGS84 WGS84} longitude |
| * on the globe as decimal degrees |
| * (eg. 121.56430000). Can also be negative. |
| * |
| * @package Feed |
| * @version //autogentag// |
| */ |
| class ezcFeedGeoRssModule extends ezcFeedModule |
| { |
| /** |
| * Constructs a new ezcFeedContentModule object. |
| * |
| * @param string $level The level of the data container ('feed' or 'item') |
| */ |
| public function __construct( $level = 'feed' ) |
| { |
| parent::__construct( $level ); |
| } |
| |
| /** |
| * Sets the property $name to $value. |
| * |
| * @throws ezcBasePropertyNotFoundException |
| * if the property $name is not defined |
| * |
| * @param string $name The property name |
| * @param mixed $value The property value |
| * @ignore |
| */ |
| public function __set( $name, $value ) |
| { |
| if ( $this->isElementAllowed( $name ) ) |
| { |
| $node = $this->add( $name ); |
| $node->text = $value; |
| } |
| else |
| { |
| parent::__set( $name, $value ); |
| } |
| } |
| |
| /** |
| * Returns the value of property $name. |
| * |
| * @throws ezcBasePropertyNotFoundException |
| * if the property $name is not defined |
| * |
| * @param string $name The property name |
| * @return mixed |
| * @ignore |
| */ |
| public function __get( $name ) |
| { |
| if ( $this->isElementAllowed( $name ) ) |
| { |
| return $this->properties[$name]; |
| } |
| else |
| { |
| return parent::__get( $name ); |
| } |
| } |
| |
| /** |
| * Returns if the property $name is set. |
| * |
| * @param string $name The property name |
| * @return bool |
| * @ignore |
| */ |
| public function __isset( $name ) |
| { |
| if ( $this->isElementAllowed( $name ) ) |
| { |
| return isset( $this->properties[$name] ); |
| } |
| else |
| { |
| return parent::__isset( $name ); |
| } |
| } |
| |
| /** |
| * Returns true if the element $name is allowed in the current module at the |
| * current level (feed or item), and false otherwise. |
| * |
| * @param string $name The element name to check if allowed in the current module and level (feed or item) |
| * @return bool |
| */ |
| public function isElementAllowed( $name ) |
| { |
| switch ( $this->level ) |
| { |
| case 'feed': |
| if ( in_array( $name, array( 'lat', 'long', 'point', 'where' ) ) ) |
| { |
| return true; |
| } |
| break; |
| |
| case 'item': |
| if ( in_array( $name, array( 'lat', 'long', 'point', 'where' ) ) ) |
| { |
| return true; |
| } |
| break; |
| } |
| return false; |
| } |
| |
| /** |
| * Adds a new ezcFeedElement element with name $name to this module and |
| * returns it. |
| * |
| * @throws ezcFeedUnsupportedElementException |
| * if trying to add an element which is not supported. |
| * |
| * @param string $name The element name |
| * @return ezcFeedElement |
| */ |
| public function add( $name ) |
| { |
| if ( $this->isElementAllowed( $name ) ) |
| { |
| switch ( $name ) |
| { |
| case 'lat': |
| case 'long': |
| case 'point': |
| case 'where': |
| $node = new ezcFeedTextElement(); |
| break; |
| } |
| |
| $this->properties[$name] = $node; |
| return $node; |
| } |
| else |
| { |
| throw new ezcFeedUnsupportedElementException( $name ); |
| } |
| } |
| |
| /** |
| * Adds the module elements to the $xml XML document, in the container $root. |
| * |
| * @param DOMDocument $xml The XML document in which to add the module elements |
| * @param DOMNode $root The parent node which will contain the module elements |
| */ |
| public function generate( DOMDocument $xml, DOMNode $root ) |
| { |
| if ( isset( $this->lat ) && isset( $this->long ) ) |
| { |
| $elementTag = $xml->createElement( $this->getNamespacePrefix() . ':' . 'point' ); |
| $root->appendChild( $elementTag ); |
| |
| $elementTag->nodeValue = "{$this->lat} {$this->long}"; |
| } |
| } |
| |
| /** |
| * Parses the XML element $node and creates a feed element in the current |
| * module with name $name. |
| * |
| * @param string $name The name of the element belonging to the module |
| * @param DOMElement $node The XML child from which to take the values for $name |
| */ |
| public function parse( $name, DOMElement $node ) |
| { |
| if ( $this->isElementAllowed( $name ) ) |
| { |
| switch ( $name ) |
| { |
| case 'where': |
| $children = $node->childNodes; |
| $value = trim( $children->item(1)->textContent ); |
| list( $lat, $long ) = explode( ' ', $value ); |
| |
| $element = $this->add( 'lat' ); |
| $element->text = $lat; |
| $element = $this->add( 'long' ); |
| $element->text = $long; |
| break; |
| case 'point': |
| $value = $node->textContent; |
| list( $lat, $long ) = explode( ' ', $value ); |
| $element = $this->add( 'lat' ); |
| $element->text = $lat; |
| $element = $this->add( 'long' ); |
| $element->text = $long; |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Returns the module name (GeoRss'). |
| * |
| * @return string |
| */ |
| public static function getModuleName() |
| { |
| return 'GeoRss'; |
| } |
| |
| /** |
| * Returns the namespace for this module ('http://www.w3.org/2003/01/geo/wgs84_pos#'). |
| * |
| * @return string |
| */ |
| public static function getNamespace() |
| { |
| return 'http://www.georss.org/georss'; |
| } |
| |
| /** |
| * Returns the namespace prefix for this module ('georss'). |
| * |
| * @return string |
| */ |
| public static function getNamespacePrefix() |
| { |
| return 'georss'; |
| } |
| } |
| ?> |