NAME

Log::Dispatch::DBI - Class for logging to database via DBI interface

SYNOPSIS

use Log::Dispatch::DBI;

      my $log = Log::Dispatch::DBI->new(
          name       => 'dbi',
          min_level  => 'info',
          datasource => 'dbi:mysql:log',
          username   => 'user',
          password   => 'password',
          table      => 'logging',
      );

      # Or, if your handle is alreaady connected
      $log = Log::Dispatch::DBI->new(
          name => 'dbi',
          min_level => 'info',
          dbh  => $dbh,
      );

      $log->log(level => 'emergency', messsage => 'something BAD happened');

DESCRIPTION

Log::Dispatch::DBI is a subclass of Log::Dispatch::Output, which inserts logging output into relational database using DBI interface.

METHODS

new $log = Log::Dispatch::DBI->new(%params);

        This method takes a hash of parameters. The following options are
        valid:

-- name, min_level, max_level, callbacks

Same as various Log::Dispatch::* classes.

-- dbh

Database handle where Log::Dispatch::DBI throws log message.

-- datasource, username, password

        If database connection is not yet established, put the DSN, username
        and password for DBI connect method. Destructor method of
        Log::Dispatch::DBI disconnects database handle, if the handle is
        made inside by these parameters. (The method does not disconnect the
        handle if it's supplied with `dbh' parameter.)

-- table

Table name for logging. default is log.

log_message

inherited from Log::Dispatch::Output.

TABLE SCHEMA

Maybe something like this for MySQL.

      CREATE TABLE log (
          id        int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
          level     varchar(9) NOT NULL,
          message   text NOT NULL,
          timestamp timestamp
      );

For example,

$log->log(level => 'info', message => 'too bad');

will execute the following SQL:

INSERT INTO log (level, message) VALUES ('info', 'too bad');

If you change this behaviour, what you should do is to subclass Log::Dispatch::DBI and override `create_statement' and `log_message' method.

AUTHOR

Tatsuhiko Miyagawa <miyagawa@bulknews.net>

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

the Log::Dispatch manpage, the DBI manpage, the Log::Dispatch::Config manpage