NAME

DBIx::Tracer - Easy tracer for DBI

SYNOPSIS

   use DBIx::Tracer;

   my $tracer = DBIx::Tracer->new(
       sub {
           my %args = @_;
           say $args{dbh};
           say $args{time};
           say $args{sql};
           say "Bind: $_" for @{$args{bind_params}};
       }
   );

DESCRIPTION

DBIx::Tracer is easy tracer for DBI. You can trace a SQL queries without modifying configuration in your application.

You can insert snippets using DBIx::Tracer, and profile it.

GUARD OBJECT

DBIx::Tracer uses Scope::Guard-ish guard object strategy.

DBIx::Tracer->new installs method modifiers, and DBIx::Tracer->DESTROY uninstall method modifiers.

You must keep the instance of DBIx::Trace in the context.

METHODS

DBIx::Tracer->new(CodeRef: $code)

   my $tracer = DBIx::Tracer->new(
       sub { ... }
   );

Create instance of DBIx::Tracer. Constructor takes callback function, will call on after each queries executed.

You must keep this instance you want to logging. Destructor uninstall method modifiers.

CALLBACK OPTIONS

DBIx::Tracer passes following parameters to callback function.

dbh

instance of $dbh.

sql

SQL query in string.

bind_params : ArrayRef[Str]

binded parameters for the query in arrayref.

time

Elapsed times for query in floating seconds.

FAQ

Why don't you use Callbacks feature in DBI?

I don't want to modify DBI configuration in my application for tracing.

AUTHOR

Tokuhiro Matsuno <tokuhirom AAJKLFJEF@ GMAIL COM>

THANKS TO

xaicron is author of DBIx::QueryLog. Most part of DBIx::Tracer was taken from DBIx::QueryLog.

SEE ALSO

DBIx::QueryLog

LICENSE

Copyright (C) Tokuhiro Matsuno

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