11-14-2001
Consider upgrading to Mac OS X. You and run OS 9 applications on top of OS X.
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LEARN ABOUT DEBIAN
jifty::upgrade
Jifty::Upgrade(3pm) User Contributed Perl Documentation Jifty::Upgrade(3pm)
NAME
Jifty::Upgrade - Superclass for schema/data upgrades to Jifty applications
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
perl v5.14.2 2010-12-08 Jifty::Upgrade(3pm)