Padre::DB::Plugin - Padre::DB class for the plugin table
TO BE COMPLETED
# Get all objects in list context my @list = Padre::DB::Plugin->select; # Get a subset of objects in scalar context my $array_ref = Padre::DB::Plugin->select( 'where name > ? order by name', 1000, );
The select method executes a typical SQL SELECT query on the plugin table.
select
SELECT
It takes an optional argument of a SQL phrase to be added after the FROM plugin section of the query, followed by variables to be bound to the placeholders in the SQL phrase. Any SQL that is compatible with SQLite can be used in the parameter.
FROM plugin
Returns a list of Padre::DB::Plugin objects when called in list context, or a reference to an ARRAY of Padre::DB::Plugin objects when called in scalar context.
Throws an exception on error, typically directly from the DBI layer.
# How many objects are in the table my $rows = Padre::DB::Plugin->count; # How many objects my $small = Padre::DB::Plugin->count( 'where name > ?', 1000, );
The count method executes a SELECT COUNT(*) query on the plugin table.
count
SELECT COUNT(*)
Returns the number of objects that match the condition.
The new constructor is used to create a new abstract object that is not (yet) written to the database.
new
Returns a new Padre::DB::Plugin object.
my $object = Padre::DB::Plugin->create( name => 'value', version => 'value', enabled => 'value', config => 'value', );
The create constructor is a one-step combination of new and insert that takes the column parameters, creates a new Padre::DB::Plugin object, inserts the appropriate row into the plugin table, and then returns the object.
create
insert
If the primary key column name is not provided to the constructor (or it is false) the object returned will have name set to the new unique identifier.
name
Returns a new plugin object, or throws an exception on error, typically from the DBI layer.
$object->insert;
The insert method commits a new object (created with the new method) into the database.
If a the primary key column name is not provided to the constructor (or it is false) the object returned will have name set to the new unique identifier.
Returns the object itself as a convenience, or throws an exception on error, typically from the DBI layer.
# Delete a single instantiated object $object->delete; # Delete multiple rows from the plugin table Padre::DB::Plugin->delete('where name > ?', 1000);
The delete method can be used in a class form and an instance form.
delete
When used on an existing Padre::DB::Plugin instance, the delete method removes that specific instance from the plugin, leaving the object ntact for you to deal with post-delete actions as you wish.
plugin
When used as a class method, it takes a compulsory argument of a SQL phrase to be added after the DELETE FROM plugin section of the query, followed by variables to be bound to the placeholders in the SQL phrase. Any SQL that is compatible with SQLite can be used in the parameter.
DELETE FROM plugin
Returns true on success or throws an exception on error, or if you attempt to call delete without a SQL condition phrase.
# Delete all records in the plugin table Padre::DB::Plugin->truncate;
To prevent the common and extremely dangerous error case where deletion is called accidentally without providing a condition, the use of the delete method without a specific condition is forbidden.
Instead, the distinct method truncate is provided to delete all records in a table with specific intent.
truncate
Returns true, or throws an exception on error.
if ( $object->name ) { print "Object has been inserted\n"; } else { print "Object has not been inserted\n"; }
REMAINING ACCESSORS TO BE COMPLETED
The plugin table was originally created with the following SQL command.
CREATE TABLE plugin ( name VARCHAR(255) PRIMARY KEY, version VARCHAR(255), enabled BOOLEAN, config TEXT )
Padre::DB::Plugin is part of the Padre::DB API.
See the documentation for Padre::DB for more information.
Adam Kennedy
Copyright 2008-2009 The Padre development team as listed in Padre.pm.
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.
To install Padre, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Padre
CPAN shell
perl -MCPAN -e shell install Padre
For more information on module installation, please visit the detailed CPAN module installation guide.