/**
  * Apply variables to a string
  *
  * @param string $str
  * @param Fishpig_Wordpress_Model_Post $post
  * @return string
  */
 protected function _applyVars($str, $post)
 {
     if (trim($str) === '') {
         return '';
     }
     $_helper = Mage::helper('wordpress');
     return str_replace(array('%%AUTHORLINK%%', '%%POSTLINK%%', '%%BLOGLINK%%', '%%BLOGDESCLINK%%'), array($this->_createATag($post->getAuthor()->getUrl(), $post->getAuthor()->getDisplayName()), $this->_createATag($post->getPermalink(), $post->getPostTitle()), $this->_createATag($_helper->getUrl(), $_helper->getWpOption('blogname')), $this->_createATag($_helper->getUrl(), $_helper->getWpOption('blogname') . ' - ' . $_helper->getWpOption('blogdescription'))), $str);
 }
 /**
  * Retrieve the author string
  *
  * @param Fishpig_Wordpress_Model_Post $post,
  * @param array $params = array
  * @return string
  */
 public function getAuthorString(Fishpig_Wordpress_Model_Post $post)
 {
     $author = $post->getAuthor();
     return $this->_generateAnchor($author->getUrl(), $author->getDisplayName());
 }