Moodle PHP Documentation 4.4
Moodle 4.4.1 (Build: 20240610) (db07c09afc5)
navigation_node_collection Class Reference

Navigation node collection. More...

Inheritance diagram for navigation_node_collection:
flat_navigation

Public Member Functions

 add (navigation_node $node, $beforekey=null)
 Adds a navigation node to the collection.
 
 count ()
 Gets the number of nodes in this collection.
 
 find ($key, $type=null)
 Searches for a node with matching key and type.
 
 get ($key, $type=null)
 Fetches a node from this collection.
 
 get_collectionlabel ()
 Return a label for this collection.
 
 get_key_list ()
 Return a list of all the keys of all the nodes.
 
 getIterator ()
 Gets an array iterator for the collection.
 
 last ()
 Fetches the last node that was added to this collection.
 
 remove ($key, $type=null)
 Removes the node with the given key and type from the collection.
 
 set_collectionlabel ($label)
 Set a label for this collection.
 
 type ($type)
 Fetches all nodes of a given type from this collection.
 

Protected Attributes

array $collection = array()
 A multidimensional array to where the first key is the type and the second key is the nodes key.
 
string $collectionlabel = ''
 Label for collection of nodes.
 
int $count = 0
 The total number of items added to this array.
 
navigation_node $last = null
 A reference to the last node that was added to the collection.
 
array $orderedcollection = array()
 An array that contains references to nodes in the same order they were added.
 

Detailed Description

Navigation node collection.

This class is responsible for managing a collection of navigation nodes. It is required because a node's unique identifier is a combination of both its key and its type.

Originally an array was used with a string key that was a combination of the two however it was decided that a better solution would be to use a class that implements the standard IteratorAggregate interface.

License
http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Member Function Documentation

◆ add()

navigation_node_collection::add ( navigation_node $node,
$beforekey = null )

Adds a navigation node to the collection.

Parameters
navigation_node$nodeNode to add
string$beforekeyIf specified, adds before a node with this key, otherwise adds at end
Return values
navigation_nodeAdded node

Reimplemented in flat_navigation.

◆ count()

navigation_node_collection::count ( )

Gets the number of nodes in this collection.

This option uses an internal count rather than counting the actual options to avoid a performance hit through the count function.

Return values
int

◆ find()

navigation_node_collection::find ( $key,
$type = null )

Searches for a node with matching key and type.

This function searches both the nodes in this collection and all of the nodes in each collection belonging to the nodes in this collection.

Recursive.

Parameters
string | int$keyThe key of the node we want to find.
int$typeOne of navigation_node\TYPE_*.
Return values
navigation_node|false

◆ get()

navigation_node_collection::get ( $key,
$type = null )

Fetches a node from this collection.

Parameters
string | int$keyThe key of the node we want to find.
int$typeOne of navigation_node\TYPE_*.
Return values
navigation_node|null|false

◆ get_collectionlabel()

navigation_node_collection::get_collectionlabel ( )

Return a label for this collection.

Return values
string

◆ get_key_list()

navigation_node_collection::get_key_list ( )

Return a list of all the keys of all the nodes.

Return values
arraythe keys.

◆ getIterator()

navigation_node_collection::getIterator ( )

Gets an array iterator for the collection.

This is required by the IteratorAggregator interface and is used by routines such as the foreach loop.

Return values
ArrayIterator

◆ last()

navigation_node_collection::last ( )

Fetches the last node that was added to this collection.

Return values
navigation_node

◆ remove()

navigation_node_collection::remove ( $key,
$type = null )

Removes the node with the given key and type from the collection.

Parameters
string | int$keyThe key of the node we want to find.
int$type
Return values
bool

◆ set_collectionlabel()

navigation_node_collection::set_collectionlabel ( $label)

Set a label for this collection.

Parameters
string$label

◆ type()

navigation_node_collection::type ( $type)

Fetches all nodes of a given type from this collection.

Parameters
string | int$typenode type being searched for.
Return values
arrayordered collection

Member Data Documentation

◆ $orderedcollection

array navigation_node_collection::$orderedcollection = array()
protected

An array that contains references to nodes in the same order they were added.

This is maintained as a progressive array.


The documentation for this class was generated from the following file: