Ejemplo n.º 1
0
 /**
  * Invoke method, every class will have its own
  * returns true/false on completion, setting both
  * errormsg and output as necessary
  */
 function invoke()
 {
     parent::invoke();
     $result = true;
     /// Set own core attributes
     $this->does_generate = ACTION_NONE;
     //$this->does_generate = ACTION_GENERATE_HTML;
     /// These are always here
     global $CFG, $XMLDB;
     /// Do the job, setting $result as needed
     /// Get the dir containing the file
     $dirpath = required_param('dir', PARAM_PATH);
     $dirpath = $CFG->dirroot . $dirpath;
     /// Get the correct dir
     if (!empty($XMLDB->dbdirs)) {
         $dbdir =& $XMLDB->dbdirs[$dirpath];
         if ($dbdir) {
             /// Set some defaults
             $dbdir->xml_exists = false;
             $dbdir->xml_writeable = false;
             $dbdir->xml_loaded = false;
             ///Only if the directory exists
             if (!$dbdir->path_exists) {
                 return false;
             }
             $xmldb_file = new xmldb_file($dbdir->path . '/install.xml');
             ///Set the XML DTD and schema
             $xmldb_file->setDTD($CFG->dirroot . '/lib/xmldb/xmldb.dtd');
             $xmldb_file->setSchema($CFG->dirroot . '/lib/xmldb/xmldb.xsd');
             /// Set dbdir as necessary
             if ($xmldb_file->fileExists()) {
                 $dbdir->xml_exists = true;
             }
             if ($xmldb_file->fileWriteable()) {
                 $dbdir->xml_writeable = true;
             }
             /// Load the XML contents to structure
             $loaded = $xmldb_file->loadXMLStructure();
             if ($loaded && $xmldb_file->isLoaded()) {
                 $dbdir->xml_loaded = true;
                 $dbdir->filemtime = filemtime($dbdir->path . '/install.xml');
             }
             $dbdir->xml_file = $xmldb_file;
         } else {
             $this->errormsg = 'Wrong directory (' . $dirpath . ')';
             $result = false;
         }
     } else {
         $this->errormsg = 'XMLDB structure not found';
         $result = false;
     }
     /// Launch postaction if exists
     if ($this->getPostAction() && $result) {
         return $this->launch($this->getPostAction());
     }
     return $result;
 }