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Padre::DB::Plugin.3pm

NAME

Padre::DB::Plugin - Padre::DB class for the plugin table

SYNOPSIS

   TO BE COMPLETED
 
 

DESCRIPTION

TO BE COMPLETED

METHODS

select

   # 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.

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.

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.

count

   # 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.

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.

Returns the number of objects that match the condition.

Throws an exception on error, typically directly from the DBI layer.

new

   TO BE COMPLETED
 
 

The "new" constructor is used to create a new abstract object that is not (yet) written to the database.

Returns a new Padre::DB::Plugin object.

create

   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.

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.

Returns a new plugin object, or throws an exception on error, typically from the DBI layer.

insert

   $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

   # 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.

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.

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.

Returns true on success or throws an exception on error, or if you attempt to call delete without a SQL condition phrase.

truncate

   # 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.

Returns true, or throws an exception on error.

ACCESSORS

name

   if ( $object->name ) {
       print "Object has been inserted\n";
   } else {
       print "Object has not been inserted\n";
   }
 
 

Returns true, or throws an exception on error.

REMAINING ACCESSORS TO BE COMPLETED

SQL

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
   )
 
 

SUPPORT

Padre::DB::Plugin is part of the Padre::DB API.

See the documentation for Padre::DB for more information.

AUTHOR

Adam Kennedy

COPYRIGHT

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.