Iterator for flattening elements in a tree structure while adding some visual markers for their relative position in the tree
CATCH_GET_CHILD, CHILD_FIRST, LEAVES_ONLY, SELF_FIRST $_current protected mixed$_key protected callable$_spacer protected string$_value protected callable__construct( RecursiveIterator $items , string|callable $valuePath , string|callable $keyPath , string $spacer , integer $mode Cake\Collection\Iterator\RecursiveIteratorIterator::SELF_FIRST )
Constructor
$items $valuePath The property to extract or a callable to return the display value.
$keyPath The property to use as iteration key or a callable returning the key value.
$spacer The string to use for prefixing the values according to their depth in the tree.
$mode optional Cake\Collection\Iterator\RecursiveIteratorIterator::SELF_FIRST RecursiveIteratorIterator::__construct() _fetchCurrent( )
Returns the current iteration element and caches its value
current( )
Returns the current iteration value
RecursiveIteratorIterator::current() key( )
Returns the current iteration key
RecursiveIteratorIterator::key() next( )
Advances the cursor one position
RecursiveIteratorIterator::next() _unwrap( )
append( $items )
avg( $matcher null )
cartesianProduct( callable $operation null , callable $filter null )
Cake\Collection\CollectionInterfacechunk( $chunkSize )
chunkWithKeys( $chunkSize , $preserveKeys true )
combine( $keyPath , $valuePath , $groupPath null )
compile( $preserveKeys true )
contains( $value )
countBy( $callback )
each( callable $c )
every( callable $c )
extract( $matcher )
first( )
firstMatch( array $conditions )
groupBy( $callback )
indexBy( $callback )
isEmpty( )
jsonSerialize( )
last( )
listNested( $dir 'desc' , $nestingKey 'children' )
Cake\Collection\Iterator\TreeIteratormatch( array $conditions )
max( $callback , $type SORT_NUMERIC )
median( $matcher null )
min( $callback , $type SORT_NUMERIC )
nest( $idPath , $parentPath , $nestingKey 'children' )
optimizeUnwrap( )
Unwraps this iterator and returns the simplest traversable that can be used for getting the data out
reduce( callable $c , $zero null )
sample( $size 10 )
shuffle( )
skip( $howMany )
some( callable $c )
sortBy( $callback , $dir SORT_DESC , $type SORT_NUMERIC )
sumOf( $matcher null )
take( $size 1 , $from 0 )
through( callable $handler )
toArray( $preserveKeys true )
toList( )
unfold( callable $transformer null )
unwrap( )
zip( $items )
zipWith( $items , $callable )
protected string
The string to use for prefixing the values according to their depth in the tree.
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https://api.cakephp.org/3.5/class-Cake.Collection.Iterator.TreePrinter.html