GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  JIFTY::UPGRADE (3)

.ds Aq ’

NAME

Jifty::Upgrade - Superclass for schema/data upgrades to Jifty applications

CONTENTS

SYNOPSIS



  package MyApp::Upgrade;

  use base qw/ Jifty::Upgrade /;
  use Jifty::Upgrade qw/ since rename /;

  since 0.7.4 => sub {
      # Rename a column
      rename table => cthulus, name => description,
                                   to => mind_numbingly_horrible_word_picture;
  };

  since 0.6.1 => sub {
      my @sizes       = (Huge, Gigantic, Monstrous, Really Big);
      my @appearances = (Horrible, Disgusting, Frightening, Evil);
     
      # populate new columns with some random stuff
      my $cthulus = MyApp::Model::CthuluCollection->new;
      while (my $cthulu = $cthulus->next) {
          $cthulu->set_size($sizes[ int(rand(@sizes)) ]);
          $cthulu->set_appearance($appearances[ int(rand(@appearances)) ]);
      }
  };



DESCRIPTION

Jifty::Upgrade is an abstract base class to use to customize schema and data upgrades that happen.

since VERSION SUB

since is meant to be called by subclasses of Jifty::Upgrade. Calling it signifies that SUB should be run when upgrading to version VERSION, after tables and columns are added, but before tables and columns are removed. If multiple subroutines are given for the same version, they are run in order that they were set up.

    versions

Returns the list of versions that have been registered; this is called by the Jifty::Script::Schema tool to determine what to do while upgrading.

upgrade_to VERSION

Runs the subroutine that has been registered for the given version; if no subroutine was registered, returns a no-op subroutine.

    rename table => CLASS, [column => COLUMN,] to => NAME

Used in upgrade subroutines, this executes the necessary SQL to rename the table, or column in the table, to a new name.

SEE ALSO

Jifty::Manual::Upgrading
Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 JIFTY::UPGRADE (3) 2010-12-08

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.