/ 
CGI-Application-Plugin-DBIProfile-0.04
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NAME

CGI::Application::Plugin::DBIProfile - DBI profiling plugin

SYNOPSIS

# Set env in apache or in perl.
$ENV{DBI_PROFILE} = '2/CGI::Application::Plugin::DBIProfile::Driver';
use CGI::Application::Plugin::DevPopup;
use CGI::Application::Plugin::DBIProfile;

The rest of your application follows
...

INSTALLATION

To install this module, run the following commands:

perl Makefile.PL
make 
make test
make install

DESCRIPTION

CGI::Application::Plugin::DBIProfile provides popup (using CAP::DevPopup if available) holding DBI Profile information (see DBI::Profile, DBI::ProfileDumper). It will output both graphed output and a DBI::ProfileDumper report.

CONFIGURATION

To enable, set the DBI_Profile environment variables. For example, in apache:

SetVar DBI_Profile 2/CGI::Application::Plugin::DBIProfile::Driver
SetVar CAP_DBIPROFILE_EXEC 1

Or for mod_perl:

PerlSetVar DBI_Profile 2/CGI::Application::Plugin::DBIProfile::Driver
PerlSetVar CAP_DBIPROFILE_EXEC 1

If you disable it, be sure to unset the DBI_Profile env var, as it will continue to accumulate stats regardless of the setting of CAP_DBIPROFILE_EXEC, you just won't see them.

MODES OF OPERATION

It has two modes of opperation; per-request or per-process. In a CGI environment, there is no difference.

per-request - this is the default.
per-process - set the following env var to a true value.
CAP_DBIPROFILE_PERPROCESS 1

Under mod_perl, the per-request setup will show the DBI Profile specific to each page hit. The per-process setup will show the DBI Profile that has accumulated for the life of the apache process you are hitting.

Please note, running under the per-process setting can cause your memory usage to grow significantly, as the profile data is never cleared.

GRAPHING PLUGINS

The default graphing module is CGI::Application::Plugin::DBIProfile::Graph::HTML, which generates a minimal inline HTML graph. To change which graphing plugin is used, it's just another environment variable (no need to set this if you like the default).

CAP_DBIPROFILE_GRAPHMODULE Your::Graph::Module::Name

Please see CGI::Application::Plugin::DBIProfile::Graph::HTML for information on writing new graph modules.

TODO

Tests. None exist at this time.

Other graphing plugins (Plotr, Open Flash Chart, GraphML using Graph::Easy).

Add checks to be sure $dbh->{Profile} isn't disabled (probably better in ::Driver).

REQUIREMENTS

Data::JavaScript
IO::Scalar
HTML::Template

Optional:

  • GD::Graph

    For CGI::Application::Plugin::DBIProfile::Graph::GDGraphInline support.

  • SVG::TT::Graph

    For CGI::Application::Plugin::DBIProfile::Graph::SVGTT support.

  • HTML::BarGraph

    For CGI::Application::Plugin::DBIProfile::Graph::HTMLBarGraph support.

SEE ALSO

CGI::Application
CGI::Application::Plugin::DevPopup
CGI::Application::Plugin::DBIProfile::Data
CGI::Application::Plugin::DBIProfile::Driver
CGI::Application::Plugin::DBIProfile::Graph::HTML
CGI::Application::Plugin::DBIProfile::Graph::HTMLBarGraph
CGI::Application::Plugin::DBIProfile::Graph::GDGraphInline
CGI::Application::Plugin::DBIProfile::Graph::SVGTT

SPECIAL THANKS

To Sam Tregar, for the original codebase on which this was based, and DBI::ProfileDumper itself.

AUTHOR

Sam Tregar, C<< <sam@tregar.com> >>
Joshua I Miller, C<< <unrtst@cpan.org> >>

BUGS

Please report any bugs or feature requests to bug-cgi-application-plugin-dbiprofile@rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=CGI-Application-Plugin-DBIProfile. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

COPYRIGHT & LICENSE

Copyright 2007 Joshua Miller, all rights reserved.

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