/ 
DBIx-QueryLog-0.23
River stage one • 1 direct dependent • 1 total dependent
/ DBIx::QueryLog

NAME

DBIx::QueryLog - Logging queries for DBI

SYNOPSIS

use DBIx::QueryLog;
my $row = $dbh->selectrow_hashref('SELECT * FROM people WHERE user_id = ?', undef, qw/1986/);
# => SELECT * FROM people WHERE user_id = '1986';

DESCRIPTION

DBIx::QueryLog is logs each execution time and the actual query.

Currently, works on DBD::mysql and DBD::sqlite.

CLASS METHODS

threshold

Logged if exceeding this value. (default not set)

DBIx::QueryLog->threshold(0.1); # sec

And, you can also specify DBIX_QUERYLOG_THRESHOLD environment variable.

probability

Run only once per defined value. (default not set)

DBIx::QueryLog->probability(100); # about 1/100

And, you can also specify DBIX_QUERYLOG_PROBABILITY environment variable.

logger

Sets logger class (e.g. Log::Dispach)

Logger class must can be call `log` method.

DBIx::QueryLog->logger($logger);
skip_bind

If enabled, will be faster, but SQL is not bound.

DBIx::QueryLog->skip_bind(1);
my $row = $dbh->do(...);
# => 'SELECT * FROM people WHERE user_id = ?' : [1986]

And, you can also specify DBIX_QUERYLOG_SKIP_BIND environment variable.

color

If you want to colored SQL output are:

DBIx::QueryLog->color('green');

And, you can also specify DBIX_QUERYLOG_COLOR environment variable.

useqq

using $Data::Dumper::Useqq.

DBIx::QueryLog->useqq(1);

And, you can also specify DBIX_QUERYLOG_USEQQ environment variable.

compact

Compaction SQL.

DBIx::QueryLog->compact(1);
#  FROM: SELECT          *  FROM      foo WHERE bar = 'baz'
#  TO  : SELECT * FROM foo WHERE bar = 'baz'

And, you can also specify DBIX_QUERYLOG_COMPACT environment variable.

TIPS

Localization

If you want to localize the scope are:

use DBIx::QueryLog (); # or require DBIx::QueryLog;

DBIx::QueryLog->begin; # or DBIx::QueryLog->enable
my $row = $dbh->do(...);
DBIx::QueryLog->end;   # or DBIx::QueryLog->disable

Now you could enable logging between begin and end.

LOG_LEVEL

If you set logger, it might want to change the logging level.

It can be modified as follows:

$DBIx::QueryLog::LOG_LEVEL = 'info'; # default 'debug'

OUTPUT

If you want to change of output are:

open my $fh, '>', 'dbix_query.log';
$DBIx::QueryLog::OUTPUT = $fh;

or you can specify code reference:

$DBIx::QueryLog::OUTPUT = sub {
    my %params = @_;

    my $format = << 'FORMAT';
localtime  : %s       # ISO-8601 without timezone
level      : %s       # log level ($DBIx::QueryLog::LOG_LEVEL)
time       : %f       # elasped time
sql        : %s       # executed query
bind_params: %s       # bind parameters
pkg        : %s       # caller package
file       : %s       # caller file
line       : %d       # caller line
FORMAT

    printf $format,
        @params{qw/localtime level pkg time sql/},
        join(', ', @{$params{bind_params}}),
        @params{qw/file line/};
};

Default $OUTPUT is STDERR.

AUTHOR

xaicron <xaicron {at} cpan.org>

COPYRIGHT

Copyright 2010 - xaicron

LICENSE

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

SEE ALSO

DBI