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📝 NAME

User::Identity::Item - general base class for User::Identity

🚀 Quick Reference

Use Case	Command	Description
Create a new item	User::Identity::Item->new($name, %options)	Create a named item with optional description and parent
Add a role to a collection	$obj->add($collection, $role)	Add a role to a collection, auto-creating the collection if needed
Add a collection	$obj->addCollection($object|%options)	Add a new collection (by object or type+options)
Get a collection or its roles	$obj->collection($name)	Return the collection object (scalar) or all roles (list)
Find a role in a collection	$obj->find($collection, $role)	Find a specific role by name within a collection
Get the parent item	$obj->parent([$parent])	Get or set the parent object
Get the user object	$obj->user()	Traverse up to the topmost User::Identity object

🔗 INHERITANCE

• User::Identity::Item is extended by
• Mail::Identity
• User::Identity
• User::Identity::Archive
• User::Identity::Collection
• User::Identity::Location
• User::Identity::System

📋 SYNOPSIS

📖 DESCRIPTION

The "User::Identity::Item" base class is extended into useful modules: it has no use by its own.

⚙️ METHODS

🏗️ Constructors

User::Identity::Item->new( [$name], %options )

• -Option -- Default
• 📝 description -- undef
• 📛 name -- <required>
• 👪 parent -- undef

• 📝 description => STRING — Free format description on the collected item.
• 📛 name => STRING — A simple name for this item. Try to give a useful name in the context of the item time. Each time when you lookup items, you need to specify this name, so it should be unique and not too hard to handle in your program. For instance, when a person is addressed, you usually will give him/her this a nickname.
• 👪 parent => OBJECT — The encapsulating object: the object which collects this one.

🏷️ Attributes

• $obj->description() — Free format description on this item. Please do not add any significance to the content of this field: if you are in need for an extra attribute, please contact the author of the module to implement it, or extend the object to suit your needs.
• $obj->name( [$newname] ) — The name of this item. Names are unique within a collection... a second object with the same name within any collection will destroy the already existing object with that name. Changing the name of an item is quite dangerous. You probably want to call User::Identity::Collection::renameRole() instead.

📂 Collections

• $obj->add($collection, $role) — The $role is added to the $collection. The $collection is the name of a collection, which will be created automatically with addCollection() if needed. The $collection can also be specified as existing collection object. The $role is anything what is acceptable to User::Identity::Collection::addRole() of the collection at hand, and is returned. $role typically is a list of parameters for one role, or a reference to an array containing these values.

Example:

my $ui   = User::Identity->new(...);
my $home = $ui->add(location => [home => street => '27 Roadstreet', ...] );
my $work = $ui->add(location => work, tel => '+31-2231-342-13', ... );

my $travel = User::Identity::Location->new(travel => ...);
$ui->add(location => $travel);

my $system = User::Identity::Collection::System->new(...);
$ui->add($system => 'localhost');

• $obj->addCollection( $object | <[$type], %options> ) — Add a new collection of roles to an item. This can be achieved in two ways: either create an User::Identity::Collection $object yourself and then pass that to this method, or supply all the %options needed to create such an object and it will be created for you. The object which is added is returned, and can be used for many methods directly.

• -Option -- Default
• 📛 type -- <required>

• 📛 type => STRING|CLASS — The nickname of a collection class or the CLASS name itself of the object to be created. Required if an object has to be created. Predefined type nicknames are "email", "system", and "location".

Example:

my $me   = User::Identity->new(...);
my $locs = User::Identity::Collection::Locations->new();
$me->addCollection($locs);

my $email = $me->addCollection(type => 'email');
my $email = $me->addCollection('email');

• $obj->collection($name) — In scalar context the collection object with the $name is returned. In list context, all the roles within the collection are returned.

Example:

my @roles = $me->collection('email');        # list of collected items
my @roles = $me->collection('email')->roles; # same of collected items
my $coll  = $me->collection('email');        # a User::Identity::Collection

• $obj->parent( [$parent] ) — Returns the parent of an Item (the enclosing item). This may return "undef" if the object is stand-alone.
• $obj->removeCollection($object|$name)
• $obj->type()
• User::Identity::Item->type() — Returns a nice symbolic name for the type.
• $obj->user() — Go from this object to its parent, to its parent, and so on, until a User::Identity is found or the top of the object tree has been reached.

Example:

print $email->user->fullName;

🔍 Searching

• $obj->find($collection, $role) — Returns the object with the specified $role within the named collection. The collection can be specified as name or object.

Example:

my $role  = $me->find(location => 'work');       # one location
my $role  = $me->collection('location')->find('work'); # same

my $email = $me->addCollection('email');
$me->find($email => 'work');
$email->find('work');   # same

⚠️ DIAGNOSTICS

• 🚫 Error: $object is not a collection. — The first argument is an object, but not of a class which extends User::Identity::Collection.
• 🚫 Error: Cannot load collection module for $type ($class). — Either the specified $type does not exist, or that module named $class returns compilation errors. If the type as specified in the warning is not the name of a package, you specified a nickname which was not defined. Maybe you forgot the 'require' the package which defines the nickname.
• 🚫 Error: Creation of a collection via $class failed. — The $class did compile, but it was not possible to create an object of that class using the options you specified.
• 🚫 Error: Don't know what type of collection you want to add. — If you add a collection, it must either be a collection object or a list of options which can be used to create a collection object. In the latter case, the type of collection must be specified.
• 🚫 Error: Each item requires a name. — You have to specify a name for each item. These names need to be unique within one collection, but feel free to give the same name to an e-mail address and a location.
• ⚠️ Warning: No collection $name. — The collection with $name does not exist and can not be created.
• ⚠️ Warning: Unknown option $name for a $class. — One used option is not defined. Check the manual page of the class to see which options are accepted.
• ⚠️ Warning: Unknown options @names for a $class. — More than one option is not defined.

📚 SEE ALSO

This module is part of User-Identity distribution version 1.01, built on February 11, 2022. Website: http://perl.overmeer.net/CPAN/

📄 LICENSE

Copyrights 2003-2022 by [Mark Overmeer <markov AT cpan.org>]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/

📝 NAME 🚀 Quick Reference 🔗 INHERITANCE 📋 SYNOPSIS 📖 DESCRIPTION ⚙️ METHODS ⚠️ DIAGNOSTICS 📚 SEE ALSO 📄 LICENSE