Padre::DB::HostConfig

NAME

Padre::DB::HostConfig − Padre::DB class for the "hostconf" table

SYNOPSIS

TO BE COMPLETED

DESCRIPTION

TO BE COMPLETED

METHODS

select

  # Get all objects in list context
  my @list = Padre::DB::HostConfig−>select;
  # Get a subset of objects in scalar context
  my $array_ref = Padre::DB::HostConfig−>select(
      'where name > ? order by name',
      1000,
  );

The "select" method executes a typical SQL "SELECT" query on the "hostconf" table.

It takes an optional argument of a SQL phrase to be added after the "FROM hostconf" 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::HostConfig" objects when called in list context, or a reference to an ARRAY of "Padre::DB::HostConfig" 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::HostConfig−>count;
  # How many objects
  my $small = Padre::DB::HostConfig−>count(
      'where name > ?',
      1000,
  );

The "count" method executes a "SELECT COUNT(*)" query on the "hostconf" table.

It takes an optional argument of a SQL phrase to be added after the "FROM hostconf" 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::HostConfig" object.

create

  my $object = Padre::DB::HostConfig−>create(
      name => 'value',
      value => 'value',
  );

The "create" constructor is a one-step combination of "new" and "insert" that takes the column parameters, creates a new "Padre::DB::HostConfig" object, inserts the appropriate row into the "hostconf" 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 "hostconf" 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 hostconf table
  Padre::DB::HostConfig−>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::HostConfig" instance, the "delete" method removes that specific instance from the "hostconf", leaving the object intact 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 hostconf" 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 hostconf table
  Padre::DB::HostConfig−>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.

INTERFACE

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 "hostconf" table was originally created with the following SQL command.

  CREATE TABLE hostconf (
        name VARCHAR(255) PRIMARY KEY,
        value VARCHAR(255)
  )

SUPPORT

"Padre::DB::HostConfig" is part of the Padre::DB API .

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

AUTHOR

Adam Kennedy

COPYRIGHT

Copyright 2008−2010 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.