PHP Fatal error: Call to undefined method RSSCache::error_rss()

Discussion in 'PHP' started by bbrian017, Sep 3, 2011.

  1. #1
    I'm using an import script,

    php 5.3

    PHP Fatal error: Call to undefined method RSSCache::error_rss() in /var/www/vhosts/websitename.com/httpdocs/modules/rss_import/magpierss/rss_cache.inc on line 57

    Line 57 is,

    /*=======================================================================*\
        Function:   set
        Purpose:    add an item to the cache, keyed on url
        Input:      url from wich the rss file was fetched
        Output:     true on sucess  
    \*=======================================================================*/
        function set ($url, $rss) {
            $this->ERROR = "";
            $cache_file = $this->file_name( $url );
            $fp = @fopen( $cache_file, 'w' );
            
            if ( ! $fp ) {
                $this->error_rss(
                    "Cache unable to open file for writing: $cache_file"
                );
                return 0;
            }
    Code (markup):
    <?php
    /*
     * Project:     MagpieRSS: a simple RSS integration tool
     * File:        rss_cache.inc, a simple, rolling(no GC), cache 
     *              for RSS objects, keyed on URL.
     * Author:      Kellan Elliott-McCrea <kellan@protest.net>
     * Version:     0.51
     * License:     GPL
     *
     * The lastest version of MagpieRSS can be obtained from:
     * http://magpierss.sourceforge.net
     *
     * For questions, help, comments, discussion, etc., please join the
     * Magpie mailing list:
     * http://lists.sourceforge.net/lists/listinfo/magpierss-general
     *
     */
    
    class RSSCache {
        var $BASE_CACHE = './cache';    // where the cache files are stored
        var $MAX_AGE    = 3600;         // when are files stale, default one hour
        var $ERROR      = "";           // accumulate error messages
        
        function RSSCache ($base='', $age='') {
            if ( $base ) {
                $this->BASE_CACHE = $base;
            }
            if ( $age ) {
                $this->MAX_AGE = $age;
            }
            
            // attempt to make the cache directory
            if ( ! file_exists( $this->BASE_CACHE ) ) {
                $status = @mkdir( $this->BASE_CACHE, 0755 );
                
                // if make failed 
                if ( ! $status ) {
                    $this->error_rss(
                        "Cache couldn't make dir '" . $this->BASE_CACHE . "'."
                    );
                }
            }
        }
        
    /*=======================================================================*\
        Function:   set
        Purpose:    add an item to the cache, keyed on url
        Input:      url from wich the rss file was fetched
        Output:     true on sucess  
    \*=======================================================================*/
        function set ($url, $rss) {
            $this->ERROR = "";
            $cache_file = $this->file_name( $url );
            $fp = @fopen( $cache_file, 'w' );
            
            if ( ! $fp ) {
                $this->error_rss(
                    "Cache unable to open file for writing: $cache_file"
                );
                return 0;
            }
            
            
            $data = $this->serialize( $rss );
            fwrite( $fp, $data );
            fclose( $fp );
            
            return $cache_file;
        }
        
    /*=======================================================================*\
        Function:   get
        Purpose:    fetch an item from the cache
        Input:      url from wich the rss file was fetched
        Output:     cached object on HIT, false on MISS 
    \*=======================================================================*/ 
        function get ($url) {
            $this->ERROR = "";
            $cache_file = $this->file_name( $url );
            
            if ( ! file_exists( $cache_file ) ) {
                $this->debug( 
                    "Cache doesn't contain: $url (cache file: $cache_file)"
                );
                return 0;
            }
            
            $fp = @fopen($cache_file, 'r');
            if ( ! $fp ) {
                $this->error_rss(
                    "Failed to open cache file for reading: $cache_file"
                );
                return 0;
            }
            
            if ($filesize = filesize($cache_file) ) {
            	$data = fread( $fp, filesize($cache_file) );
            	$rss = $this->unserialize( $data );
            
            	return $rss;
        	}
        	
        	return 0;
        }
    
    /*=======================================================================*\
        Function:   check_cache
        Purpose:    check a url for membership in the cache
                    and whether the object is older then MAX_AGE (ie. STALE)
        Input:      url from wich the rss file was fetched
        Output:     cached object on HIT, false on MISS 
    \*=======================================================================*/     
        function check_cache ( $url ) {
            $this->ERROR = "";
            $filename = $this->file_name( $url );
            
            if ( file_exists( $filename ) ) {
                // find how long ago the file was added to the cache
                // and whether that is longer then MAX_AGE
                $mtime = filemtime( $filename );
                $age = time() - $mtime;
                if ( $this->MAX_AGE > $age ) {
                    // object exists and is current
                    return 'HIT';
                }
                else {
                    // object exists but is old
                    return 'STALE';
                }
            }
            else {
                // object does not exist
                return 'MISS';
            }
        }
    
    	function cache_age( $cache_key ) {
    		$filename = $this->file_name( $url );
    		if ( file_exists( $filename ) ) {
    			$mtime = filemtime( $filename );
                $age = time() - $mtime;
    			return $age;
    		}
    		else {
    			return -1;	
    		}
    	}
    	
    /*=======================================================================*\
        Function:   serialize
    \*=======================================================================*/     
        function serialize ( $rss ) {
            return serialize( $rss );
        }
    
    /*=======================================================================*\
        Function:   unserialize
    \*=======================================================================*/     
        function unserialize ( $data ) {
            return unserialize( $data );
        }
        
    /*=======================================================================*\
        Function:   file_name
        Purpose:    map url to location in cache
        Input:      url from wich the rss file was fetched
        Output:     a file name
    \*=======================================================================*/     
        function file_name ($url) {
            $filename = md5( $url );
            return join( DIRECTORY_SEPARATOR, array( $this->BASE_CACHE, $filename ) );
        }
    
    /*=======================================================================*\
        Function:   error
        Purpose:    register error
    \*=======================================================================*/         
        function error ($errormsg, $lvl=E_USER_WARNING) {
            // append PHP's error message if track_errors enabled
            if ( isset($php_errormsg) ) { 
                $errormsg .= " ($php_errormsg)";
            }
            $this->ERROR = $errormsg;
            if ( MAGPIE_DEBUG ) {
                trigger_error_rss( $errormsg, $lvl);
            }
            else {
                error_log( $errormsg, 0);
            }
        }
        
        function debug ($debugmsg, $lvl=E_USER_NOTICE) {
            if ( MAGPIE_DEBUG ) {
                $this->error_rss("MagpieRSS [debug] $debugmsg", $lvl);
            }
        }
    
    }
    
    ?>
    Code (markup):
    Any suggestions?

    Is it a file permission issue?
     
    bbrian017, Sep 3, 2011 IP
  2. babushkyn

    babushkyn Member

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    #2
    There is no error_rss() method declared in that class, but there is error(), try changing line:
    function error ($errormsg, $lvl=E_USER_WARNING) {
    PHP:
    to
    function error_rss ($errormsg, $lvl=E_USER_WARNING) {
    PHP:
     
    babushkyn, Sep 3, 2011 IP
  3. MyVodaFone

    MyVodaFone Well-Known Member

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    #3
    Just throwing this out:

    1, allow_url_fopen = On // do you know if your server php.ini has that set to ON
    2, when writing into a folder, pending on your host, you may need to set permissions to the (in your case) cache folder - CHMOD 777 so its writeable by the script
     
    MyVodaFone, Sep 3, 2011 IP
  4. bbrian017

    bbrian017 Well-Known Member

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    #4
    bbrian017, Sep 5, 2011 IP