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<?php
/**
* File containing the ezcLogWriterDatabase class.
*
* @package EventLog
* @version //autogentag//
* @copyright Copyright (C) 2005, 2006 eZ systems as. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
*/
/**
* Writes log messages to the database.
*
* @package EventLog
* @version //autogentag//
*/
class ezcLogWriterDatabase implements ezcLogWriter
{
private $db = null;
private $properties = array();
private $defaultColumns = array();
private $additionalColumns = array();
private $map;
private $defaultTable = false;
/**
* Construct a new database log-writer.
*
* You can set the default table to write to with the $defaultTable parameter.
* If $databaseInstance is given, that instance will be used for writing. If it
* is ommitted the default database instance will be retrieved.
*
* This constructor is a tie-in.
*
* @param string $defaultTable
* @param ezcDbHandler $databaseInstance
*
*/
public function __construct( ezcDbHandler $databaseInstance, $defaultTable = false )
{
$this->db = $databaseInstance;
$this->map = new ezcLogMap();
$this->defaultTable = $defaultTable;
$this->message = "message";
$this->datetime = "time";
$this->severity = "severity";
$this->source = "source";
$this->category = "category";
}
/**
* Sets the property $name to $value.
*
* @throws ezcBasePropertyNotFoundException if the property does not exist.
* @param string $name
* @param mixed $value
* @return void
*/
public function __set( $name, $value )
{
switch ( $name )
{
case 'table': $this->properties['table'] = $value; break;
case 'message':
case 'datetime':
case 'severity':
case 'source':
case 'category': $this->defaultColumns[ $name ] = $value; break;
default: $this->additionalColumns[ $name ] = $value; break;
}
}
/**
* Returns the property $name.
*
* @throws ezcBasePropertyNotFoundException if the property does not exist.
* @param string $name
* @return mixed
*/
public function __get( $name )
{
switch ( $name )
{
case 'table': return $this->properties['table']; break;
case 'message':
case 'datetime':
case 'severity':
case 'source':
case 'category': return $this->defaultColumns[ $name ]; break;
default: return $this->additionalColumns[ $name ]; break;
}
}
/**
* Writes the message $message to the log.
*
* The writer can use the severity, source, and category to filter the
* incoming messages and determine the location where the messages should
* be written.
*
* $optional may contain extra information that can be added to the log. For example:
* line numbers, file names, usernames, etc.
*
* @throws ezcLogWriterException when the log writer was unable to write
* the log message.
* @param string $message
* @param int $severity
* ezcLog:: DEBUG, SUCCES_AUDIT, FAILED_AUDIT, INFO, NOTICE, WARNING, ERROR or FATAL.
*
* $param string $source
* @param string $category
* @param array(string=>string) $optional
* @return void
*/
public function writeLogMessage( $message, $severity, $source, $category, $optional = array() )
{
$severityName = ezcLog::translateSeverityName( $severity );
$colStr = "";
$valStr = "";
if ( is_array( $optional ) )
{
foreach ( $optional as $key => $val )
{
$colStr .= ", " . ( isset( $this->additionalColumns[$key] ) ? $this->additionalColumns[$key] : $key );
$valStr .= ", " . $this->db->quote( $val );
}
}
$tables = $this->map->get( $severity, $source, $category );
$query = $this->db->createSelectQuery();
if ( count( $tables ) > 0)
{
foreach ( $tables as $t )
{
try
{
$this->db->exec( "INSERT INTO `{$t}` ( {$this->message}, {$this->severity}, {$this->source}, {$this->category}, {$this->datetime} $colStr ) ".
"VALUES( ".$this->db->quote( $message ).", ".$this->db->quote( $severityName ).", ".$this->db->quote( $source ).", ".
$this->db->quote( $category ).", ".$query->expr->now()." $valStr )" );
}
catch ( PDOException $e )
{
throw new ezcLogWriterException( "SQL query failed in ezcLogWriterDatabase.\n". $e->getMessage() );
}
}
}
else
{
if ( $this->defaultTable !== false )
{
try
{
$this->db->exec( "INSERT INTO `{$this->defaultTable}` ( {$this->message}, {$this->severity}, {$this->source}, {$this->category}, {$this->datetime} $colStr ) ".
"VALUES( ".$this->db->quote( $message ).", ".$this->db->quote( $severityName ).", ".$this->db->quote( $source ).", ".
$this->db->quote( $category ).", ".$query->expr->now()." $valStr )" );
}
catch ( PDOException $e )
{
throw new ezcLogWriterException( "SQL query failed in ezcLogWriterDatabase.\n". $e->getMessage() );
}
}
}
}
/**
* Returns an array that describes the coupling between the logMessage
* information and the columns in the database.
*
* @return array(string=>string)
*/
public function getColumnTranslations()
{
return array_merge( $this->defaultColumns, $this->additionalColumns );
}
/**
* Maps the table $tableName to the messages specified by the {@link ezcLogFilter} $logFilter.
*
* Log messages that matches with the filter are written to the table $tableName.
* This method works the same as {@link ezclog::map()}.
*
* @param ezcLogFilter $logFilter
* @param string $tableName
* @return void
*/
public function map( ezcLogFilter $logFilter, $tableName )
{
$this->map->map( $logFilter->severity, $logFilter->source, $logFilter->category, $tableName );
}
/**
* Unmaps the table $tableName from the messages specified by the {@link ezcLogFilter} $logFilter.
*
* Log messages that matches with the filter are no longer written to the table $tableName.
* This method works the same as {@link ezclog::unmap()}.
*
* @param ezcLogFilter $logFilter
* @param string $fileName
* @return void
*/
public function unmap( ezcLogFilter $logFilter, $tableName )
{
$this->map->unmap( $logFilter->severity, $logFilter->source, $logFilter->category, $tableName );
}
}
?>
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