1User::Identity::Item(3)User Contributed Perl DocumentatioUnser::Identity::Item(3)
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6 User::Identity::Item - general base class for User::Identity
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10 The "User::Identity::Item" base class is extended into useful modules:
11 it has no use by its own.
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14 Constructors
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16 User::Identity::Item->new([NAME], OPTIONS)
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18 Option --Defined in --Default
19 description undef
20 name <required>
21 parent undef
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23 . description STRING
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25 Free format description on the collected item.
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27 . name STRING
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29 A simple name for this item. Try to give a useful name in the
30 context of the item time. Each time when you lookup items, you
31 need to specify this name, so it should be unique and not to
32 hard to handle in your program. For instance, when a person is
33 addressed, you usually will give him/her this a nickname.
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35 . parent OBJECT
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37 The encapsulating object: the object which collects this one.
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39 Attributes
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41 $obj->description
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43 Free format description on this item. Please do not add any sig‐
44 nificance to the content of this field: if you are in need for an
45 extra attribute, please contact the author of the module to imple‐
46 ment it, or extend the object to suit your needs.
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48 $obj->name([NEWNAME])
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50 The name of this item. Names are unique within a collection... a
51 second object with the same name within any collection will destroy
52 the already existing object with that name.
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54 Changing the name of an item is quite dangerous. You probably want
55 to call User::Identity::Collection::renameRole() instead.
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57 Collections
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59 $obj->add(COLLECTION, ROLE)
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61 The ROLE is added to the COLLECTION. The COLLECTION is the name of
62 a collection, which will be created automatically with addCollec‐
63 tion() if needed. The COLLECTION can also be specified as existing
64 collection object.
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66 The ROLE is anything what is acceptable to User::Identity::Collec‐
67 tion::addRole() of the collection at hand, and is returned. ROLE
68 typically is a list of parameters for one role, or a reference to
69 an array containing these values.
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71 Example:
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73 my $ui = User::Identity->new(...);
74 my $home = $ui->add(location => [home => street => '27 Roadstreet', ...] );
75 my $work = $ui->add(location => work, tel => '+31-2231-342-13', ... );
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77 my $travel = User::Identity::Location->new(travel => ...);
78 $ui->add(location => $travel);
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80 my $system = User::Identity::Collection::System->new(...);
81 $ui->add($system => 'localhost');
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83 $obj->addCollection(OBJECT ⎪ ([TYPE], OPTIONS))
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85 Add a new collection of roles to an item. This can be achieved in
86 two ways: either create an User::Identity::Collection OBJECT your‐
87 self and then pass that to this method, or supply all the OPTIONS
88 needed to create such an object and it will be created for you.
89 The object which is added is returned, and can be used for many
90 methods directly.
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92 For OPTIONS, see the specific type of collection. Additional
93 options are listed below.
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95 Option--Defined in--Default
96 type <required>
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98 . type STRING⎪CLASS
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100 The nickname of a collection class or the CLASS name itself of
101 the object to be created. Required if an object has to be cre‐
102 ated. Predefined type nicknames are "email", "system", and
103 "location".
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105 Example:
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107 my $me = User::Identity->new(...);
108 my $locs = User::Identity::Collection::Locations->new();
109 $me->addCollection($locs);
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111 my $email = $me->addCollection(type => 'email');
112 my $email = $me->addCollection('email');
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114 $obj->collection(NAME)
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116 In scalar context the collection object with the NAME is returned.
117 In list context, all the roles within the collection are returned.
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119 Example:
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121 my @roles = $me->collection('email'); # list of collected items
122 my @roles = $me->collection('email')->roles; # same of collected items
123 my $coll = $me->collection('email'); # a User::Identity::Collection
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125 $obj->find(COLLECTION, ROLE)
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127 Returns the object with the specified ROLE within the named collec‐
128 tion. The collection can be specified as name or object.
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130 Example:
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132 my $role = $me->find(location => 'work'); # one location
133 my $role = $me->collection('location')->find('work'); # same
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135 my $email = $me->addCollection('email');
136 $me->find($email => 'work');
137 $email->find('work'); # same
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139 $obj->parent([PARENT])
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141 Returns the parent of an Item (the enclosing item). This may
142 return "undef" if the object is stand-alone.
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144 $obj->removeCollection(OBJECT⎪NAME)
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146 $obj->type
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148 User::Identity::Item->type
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150 Returns a nice symbolic name for the type.
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152 $obj->user
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154 Go from this object to its parent, to its parent, and so on, until
155 a User::Identity is found or the top of the object tree has been
156 reached.
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158 Example:
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160 print $email->user->fullName;
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163 Error: $object is not a collection.
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165 The first argument is an object, but not of a class which extends
166 User::Identity::Collection.
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168 Error: Cannot load collection module for $type ($class).
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170 Either the specified $type does not exist, or that module named $class
171 returns compilation errors. If the type as specified in the warning is
172 not the name of a package, you specified a nickname which was not
173 defined. Maybe you forgot the 'require' the package which defines the
174 nickname.
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176 Error: Creation of a collection via $class failed.
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178 The $class did compile, but it was not possible to create an object of
179 that class using the options you specified.
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181 Error: Don't know what type of collection you want to add.
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183 If you add a collection, it must either by a collection object or a
184 list of options which can be used to create a collection object. In
185 the latter case, the type of collection must be specified.
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187 Error: Each item requires a name
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189 You have to specify a name for each item. These names need to be
190 unique within one collection, but feel free to give the same name to an
191 e-mail address and a location.
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193 Warning: No collection $name
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195 The collection with $name does not exist and can not be created.
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197 Warning: Unknown option $name for a $class
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199 One used option is not defined. Check the manual page of the class to
200 see which options are accepted.
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202 Warning: Unknown options @names for a $class
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204 More than one option is not defined.
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207 This module is part of User-Identity distribution version 0.91, built
208 on January 08, 2007. Website: http://perl.overmeer.net/userid/
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211 Copyrights 2003,2004,2007 by Mark Overmeer <perl@overmeer.net>.For
212 other contributors see Changes.
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214 This program is free software; you can redistribute it and/or modify it
215 under the same terms as Perl itself. See
216 http://www.perl.com/perl/misc/Artistic.html
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220perl v5.8.8 2007-01-08 User::Identity::Item(3)