Catalyst::Authentication::Realm::SimpleDB(3pm)		User Contributed Perl Documentation	    Catalyst::Authentication::Realm::SimpleDB(3pm)

NAME

       Catalyst::Authentication::Realm::SimpleDB - A simplified Catalyst authentication configurator.

SYNOPSIS

	   use Catalyst qw/
	       Authentication
	   /;

	   __PACKAGE__->config->{'Plugin::Authentication'} =
	       {
		   default => {
		       class	  => 'SimpleDB',
		       user_model => 'MyApp::Schema::Users',
		   }
	       }

	   # later on ...
	   $c->authenticate({ username => 'myusername',
			      password => 'mypassword' });

	   my $age = $c->user->get('age');

	   $c->logout;

DESCRIPTION

       The Catalyst::Authentication::Realm::SimpleDB provides a simple way to configure Catalyst Authentication when using the most common
       configuration of a password protected user retrieved from an SQL database.

CONFIGURATION

       The SimpleDB Realm class configures the Catalyst authentication system based on the following:

       o   Your user data is stored in a table that is accessible via $c->model($cfg->{user_model});

       o   Your passwords are stored in the 'password' field in your users table and are not encrypted.

       o   Your roles for users are stored in a separate table and are directly accessible via a DBIx::Class relationship called 'roles' and the
	   text of the role is stored in a field called 'role' within the role table.

       o   Your user information is stored in the session once the user is authenticated.

       For the above usage, only one configuration option is necessary, 'user_model'.  user_model should contain the class name of your user
       class. See the "PREPARATION" section for info on how to set up your database for use with this module.

       If your system differs from the above, some minor configuration may be necessary. The options available are detailed below. These options
       match the configuration options used by the underlying credential and store modules.  More information on these options can be found in
       Catalyst::Authentication::Credential::Password and Catalyst::Authentication::Store::DBIx::Class.

       user_model
	   Contains the class name (as passed to $c->model() ) of the DBIx::Class schema to use as the source for user information.  This config
	   item is REQUIRED.

       password_field
	   If your password field is not 'password' set this option to the name of your password field.  Note that if you change this to, say
	   'users_password' you will need to use that in the authenticate call:

	       $c->authenticate({ username => 'bob', users_password => 'foo' });

       password_type
	   If the password is not stored in plaintext you will need to define what format the password is in.  The common options are crypted and
	   hashed.  Crypted uses the standard unix crypt to encrypt the password.  Hashed uses the Digest modules to perform password hashing.

       password_hash_type
	   If you use a hashed password type - this defines the type of hashing. See Catalyst::Authentication::Credential::Password for more
	   details on this setting.

       role_column
	   If your users roles are stored directly in your user table, set this to the column name that contains your roles.  For example, if your
	   user table contains a field called 'permissions', the value of role_column would be 'permissions'.  NOTE: If multiple values are stored
	   in the role column, they should be space or pipe delimited.

       role_relation and role_field
	   These define an alternate role relationship name and the column that holds the role's name in plain text.  See "CONFIGURATION" in
	   Catalyst::Authentication::Store::DBIx::Class for more details on these settings.

       use_userdata_from_session
	   This is a simple 1 / 0 setting which determines how a user's data is saved / restored from the session.  If it is set to 1, the user's
	   complete information (at the time of authentication) is cached between requests.  If it is set to 0, the users information is loaded
	   from the database on each request.

PREPARATION

       This module makes several assumptions about the structure of your database.  Below is an example of a table structure which will function
       with this module in it's default configuration. You can use this table structure as-is or add additional fields as necessary. NOTE that
       this is the default SimpleDB configuration only. Your table structure can differ significantly from this when using the DBIx::Class Store
       directly.

	   --
	   -- note that you can add any additional columns you require to the users table.
	   --
	   CREATE TABLE users (
		   id		 INTEGER PRIMARY KEY,
		   username	 TEXT,
		   password	 TEXT,
	   );

	   CREATE TABLE roles (
		   id	INTEGER PRIMARY KEY,
		   role TEXT
	   );
	   CREATE TABLE user_roles (
		   user_id INTEGER,
		   role_id INTEGER,
		   PRIMARY KEY (user_id, role_id)
	   );

       Also, after you have loaded this table structure into your DBIx::Class schema, please be sure that you have a many_to_many DBIx::Class
       relationship defined for the users to roles relation. Your schema files should contain something along these lines:

       "lib/MyApp/Schema/Users.pm":

	   __PACKAGE__->has_many(map_user_role => 'MyApp::Schema::UserRoles', 'user_id');
	   __PACKAGE__->many_to_many(roles => 'map_user_role', 'role');

       "lib/MyApp/Schema/UserRoles.pm":

	   __PACKAGE__->belongs_to(role => 'MyApp::Schema::Roles', 'role_id');

MIGRATION

       If and when your application becomes complex enough that you need more features than SimpleDB gives you access to, you can migrate to a
       standard Catalyst Authentication configuration fairly easily.  SimpleDB simply creates a standard Auth config based on the inputs you give
       it.  The config SimpleDB creates by default looks like this:

	   MyApp->config('Plugin::Authentication') = {
	       default => {
		   credential => {
		       class => 'Password',
		       password_type => 'clear'
		   },
		   store => {
		       class => 'DBIx::Class',
		       role_relation => 'roles',
		       role_field => 'role',
		       use_userdata_from_session => '1',
		       user_model => $user_model_from_simpledb_config
		       }
		   }
	   };

SEE ALSO

       This module relies on a number of other modules to do it's job.	For more information you can refer to the following:

       o   Catalyst::Manual::Tutorial::Authentication

       o   Catalyst::Plugin::Authentication

       o   Catalyst::Authentication::Credential::Password

       o   Catalyst::Authentication::Store::DBIx::Class

       o   Catalyst::Plugin::Authorization::Roles

perl v5.14.2							    2011-08-23			    Catalyst::Authentication::Realm::SimpleDB(3pm)