Catalyst::View::RRDGrapUhs(e3r)Contributed Perl DocumentCaattiaolnyst::View::RRDGraph(3)


NNAAMMEE
       Catalyst::View::RRDGraph - RRD Graph View Class

SSYYNNOOPPSSIISS
       use the helper to create your View myapp_create.pl view RRDGraph RRD‐
       Graph

       from the controller:

         sub routine :Local {
           my ($self, $c) = @_;

           $c->stash->{’graph’} = [
                   "--lower-limit", "0",
                   "--start", "end-1d",
                   "--vertical-label", "My Label",
                   "--height", 600,
                   "--width", 300,
                   "DEF:Data=/path/to/rrd.rrd:data:AVERAGE",
                   "AREA:Data#0000FF:Data "
           ];
           $c->forward(’MyApp::View::RRDGraph’);
         }

DDEESSCCRRIIPPTTIIOONN
       This view generates RRD graph images from the graph defintion placed in
       the stash. The controller is responsable of placing an ARRAYREF in
       $$cc--stash->{’graph’}> with the same data as to generate a graph with the
       RRDs module, except for _f_i_l_e_n_a_m_e, that will be automatically generated
       by the view.

CCOONNFFIIGGUURRAATTIIOONN
       Configurations for the view are:

       IIMMGG__DDIIRR

       Directory to generate temporary image files. Defaults to //ttmmpp//

       IIMMGG__FFOORRMMAATT

       Image format for the generated files. ’PNG’ by default.

       OONN__EERRRROORR__SSEERRVVEE

       On error, if this config value is set, the file to which it points will
       be served (so you can serve an "error image" file to the user). Alter‐
       nately, it can be set to a code reference, that will called with $$sseellff,
       $$cc and $$eerrrroorr. You can then generate your own content in this handler.
       Default (leaving undefined) is to throw an expception.

       See http://oss.oetiker.ch/rrdtool/doc/rrdgraph.en.html for more info.

MMEETTHHOODDSS
       nneeww

       Constructor.

       pprroocceessss

       Called internally by Catalyst when the view is used.

AAUUTTHHOORR
           Jose Luis Martinez
           CPAN ID: JLMARTIN
           CAPSiDE
           jlmartinez@capside.com
           http://www.pplusdomain.net

TTHHAANNKKSS
       To Ton Voon for sending in patches, tests, and ideas.

CCOOPPYYRRIIGGHHTT
       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included
       with this module.

SSEEEE AALLSSOO
       RRDs: http://oss.oetiker.ch/rrdtool/prog/RRDs.en.html

       RRD graph docs: http://oss.oetiker.ch/rrdtool/doc/rrdgraph.en.html,
       http://oss.oetiker.ch/rrdtool/doc/rrdgraph_data.en.html,
       http://oss.oetiker.ch/rrdtool/doc/rrdgraph_graph.en.html


perl v5.8.8                       2008-10-26       Catalyst::View::RRDGraph(3)