Begin rss changes feed
[disclosr.git] / lib / FeedItem.php
blob:a/lib/FeedItem.php -> blob:b/lib/FeedItem.php
  <?php
  /**
  * Univarsel Feed Writer
  *
  * FeedItem class - Used as feed element in FeedWriter class
  *
  * @package UnivarselFeedWriter
  * @author Anis uddin Ahmad <anisniit@gmail.com>
  * @link http://www.ajaxray.com/projects/rss
  */
  class FeedItem
  {
  private $elements = array(); //Collection of feed elements
  private $version;
   
  /**
  * Constructor
  *
  * @param contant (RSS1/RSS2/ATOM) RSS2 is default.
  */
  function __construct($version = RSS2)
  {
  $this->version = $version;
  }
   
  /**
  * Add an element to elements array
  *
  * @access public
  * @param srting The tag name of an element
  * @param srting The content of tag
  * @param array Attributes(if any) in 'attrName' => 'attrValue' format
  * @return void
  */
  public function addElement($elementName, $content, $attributes = null)
  {
  $this->elements[$elementName]['name'] = $elementName;
  $this->elements[$elementName]['content'] = $content;
  $this->elements[$elementName]['attributes'] = $attributes;
  }
   
  /**
  * Set multiple feed elements from an array.
  * Elements which have attributes cannot be added by this method
  *
  * @access public
  * @param array array of elements in 'tagName' => 'tagContent' format.
  * @return void
  */
  public function addElementArray($elementArray)
  {
  if(! is_array($elementArray)) return;
  foreach ($elementArray as $elementName => $content)
  {
  $this->addElement($elementName, $content);
  }
  }
   
  /**
  * Return the collection of elements in this feed item
  *
  * @access public
  * @return array
  */
  public function getElements()
  {
  return $this->elements;
  }
   
  // Wrapper functions ------------------------------------------------------
   
  /**
  * Set the 'dscription' element of feed item
  *
  * @access public
  * @param string The content of 'description' element
  * @return void
  */
  public function setDescription($description)
  {
  $tag = ($this->version == ATOM)? 'summary' : 'description';
  $this->addElement($tag, $description);
  }
   
  /**
  * @desc Set the 'title' element of feed item
  * @access public
  * @param string The content of 'title' element
  * @return void
  */
  public function setTitle($title)
  {
  $this->addElement('title', $title);
  }
   
  /**
  * Set the 'date' element of feed item
  *
  * @access public
  * @param string The content of 'date' element
  * @return void
  */
  public function setDate($date)
  {
  if(! is_numeric($date))
  {
  $date = strtotime($date);
  }
   
  if($this->version == ATOM)
  {
  $tag = 'updated';
  $value = date(DATE_ATOM, $date);
  }
  elseif($this->version == RSS2)
  {
  $tag = 'pubDate';
  $value = date(DATE_RSS, $date);
  }
  else
  {
  $tag = 'dc:date';
  $value = date("Y-m-d", $date);
  }
   
  $this->addElement($tag, $value);
  }
   
  /**
  * Set the 'link' element of feed item
  *
  * @access public
  * @param string The content of 'link' element
  * @return void
  */
  public function setLink($link)
  {
  if($this->version == RSS2 || $this->version == RSS1)
  {
  $this->addElement('link', $link);
  }
  else
  {
  $this->addElement('link','',array('href'=>$link));
  $this->addElement('id', FeedWriter::uuid($link,'urn:uuid:'));
  }
   
  }
   
  /**
  * Set the 'encloser' element of feed item
  * For RSS 2.0 only
  *
  * @access public
  * @param string The url attribute of encloser tag
  * @param string The length attribute of encloser tag
  * @param string The type attribute of encloser tag
  * @return void
  */
  public function setEncloser($url, $length, $type)
  {
  $attributes = array('url'=>$url, 'length'=>$length, 'type'=>$type);
  $this->addElement('enclosure','',$attributes);
  }
   
  } // end of class FeedItem
  ?>