Catalyst::View::RRDGrapUhs(e3r)Contributed Perl DocumentCaattiaolnyst::View::RRDGraph(3)



NNAAMMEE
       Catalyst::View::RRDGraph - RRD Graph View Class

SSYYNNOOPPSSIISS
       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’);
         }

DDEESSCCRRIIPPTTIIOONN
       This view generates RRD graph images from the graph defintion placed in
       the stash. The controller is responsable of placing an ARRAYREF in
       $$cc--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.

CCOONNFFIIGGUURRAATTIIOONN
       Configurations for the view are:

       IIMMGG__DDIIRR

       Directory to generate temporary image files. Defaults to //ttmmpp//

       IIMMGG__FFOORRMMAATT

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

       OONN__EERRRROORR__SSEERRVVEE

       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 $$sseellff,
       $$cc and $$eerrrroorr. 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.

MMEETTHHOODDSS
       nneeww

       Constructor.

       pprroocceessss

       Called internally by Catalyst when the view is used.

AAUUTTHHOORR
           Jose Luis Martinez
           CPAN ID: JLMARTIN
           CAPSiDE
           jlmartinez@capside.com
           http://www.pplusdomain.net

TTHHAANNKKSS
       To Ton Voon for sending in patches, tests, and ideas.

CCOOPPYYRRIIGGHHTT
       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.

SSEEEE AALLSSOO
       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)
