NAME

       CGI::Application::Plugin::DBIProfile::Graph::HTML - VERY basic pure html vertical bar
       graphing for CAP:DBIProfile.

SYNOPSIS

           # in httpd.conf
           SetVar CAP_DBIPROFILE_GRAPHMODULE CGI::Application::Plugin::DBIProfile::Graph::HTML
           PerlSetVar CAP_DBIPROFILE_GRAPHMODULE CGI::Application::Plugin::DBIProfile::Graph::HTML

DESCRIPTION

       This module is provided as a basic implementation of graphing for CAP:DBIProfile. It can
       be used as an example to develop other, more sophisticated, graphing solutions.

GRAPH PLUGIN DEVELOPMENT

       The graphing plugin must have a method called "build_graph", which must accept options as
       a hash.

       It should return a scalar or scalar ref holding the HTML output needed to generate your
       graph.

       The following options will be passed to the "build_graph" method:

       self
           The cgiapp object.

       mode_param
           $self->mode_param - the runmode variable used to determine runmode (useful for
           creating links back to ourselves).

       title
           A textual title for your graph. You don't have to use this, but is there if you want
           it.

       ylabel
           Label for values we're graphing. Either "Count" or "Seconds".

       data
           An array of the datapoints to graph.

       tags
           Labels for each datapoint which match the labels that will be used on the sql
           statement list (1 to however many items there are).

       The easiest graphs to implement are fully inline - ie. it doesn't need to make any
       external calls (no <image> or <embed> tags and such).
       CGI::Application::Plugin::DBIProfile::Graph::HTML is an example of this. Other possible
       candidates are Plotr and Open Flash Chart (using js interface to populate data).

       Another inline solution is to use the <img src="data:uri"> scheme. An example of this can
       be found in CGI::Application::Plugin::DBIProfile::Graph::GDGraphInline. Please note, this
       isn't supported under MSIE.

       In order to generate a graph that isn't inline, you'll need to pass the data to be graphed
       with your call to the external object. For example, if you want to use GDGraph, you could
       create a separate cgi script that returns graphs based on params passed to it, and return
       an approapriate image tag to from your graphing module. For example:

           <img src="/cgi-bin/graph.pl?data=20,14,42&tags=1,2,3">

       Another way, would be to add a runmode in a CGI::Application "init" hook, and pass that
       runmode in a link back to the same script, and include your graph module in our script
       with a use statement. An example of this can be found in
       CGI::Application::Plugin::DBIProfile::Graph::SVGTT.

REQUIREMENTS

           L<HTML::Template>

SEE ALSO

           L<CGI::Application::Plugin::DBIProfile>
           L<CGI::Application::Plugin::DBIProfile::Graph::GDGraphInline>
           L<CGI::Application::Plugin::DBIProfile::Graph::SVGTT>

AUTHOR

           Joshua I Miller, L<unrtst@cpan.org>

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.

perl v5.20.2                               CGI::Application::Plugin::DBIProfile::Graph::HTML(3pm)