Class TreePrinter

Iterator for flattening elements in a tree structure while adding some visual markers for their relative position in the tree

Namespace: Cake\Collection\Iterator

Property Summary

$_current protected

mixed

Cached value for the current iteration element
$_key protected

callable

A callable to generate the iteration key
$_spacer protected

string

The string to use for prefixing the values according to their depth in the tree.
$_value protected

callable

A callable to extract the display value

Method Summary

__construct() public

Constructor
_createMatcherFilter() protected

Returns a callable that receives a value and will return whether or not it matches certain condition.
_extract() protected

Returns a column from $data that can be extracted by iterating over the column names contained in $path. It will return arrays for elements in represented with {*}
_fetchCurrent() protected

Returns the current iteration element and caches its value
_propertyExtractor() protected

Returns a callable that can be used to extract a property or column from an array or object based on a dot separated path.
_simpleExtract() protected

Returns a column from $data that can be extracted by iterating over the column names contained in $path
_unwrap() public deprecated

Backwards compatible wrapper for unwrap()
append() public

{@inheritDoc}
appendItem() public

{@inheritDoc}
avg() public

{@inheritDoc}
buffered() public

{@inheritDoc}
cartesianProduct() public
chunk() public

{@inheritDoc}
chunkWithKeys() public

{@inheritDoc}
combine() public

{@inheritDoc}
compile() public

{@inheritDoc}
contains() public

{@inheritDoc}
count() public

{@inheritDoc}
countBy() public

{@inheritDoc}
countKeys() public

{@inheritDoc}
current() public

Returns the current iteration value
each() public

{@inheritDoc}
every() public

{@inheritDoc}
extract() public

{@inheritDoc}
filter() public

{@inheritDoc}
first() public

{@inheritDoc}
firstMatch() public

{@inheritDoc}
groupBy() public

{@inheritDoc}
indexBy() public

{@inheritDoc}
insert() public

{@inheritDoc}
isEmpty() public

{@inheritDoc}
jsonSerialize() public

{@inheritDoc}
key() public

Returns the current iteration key
last() public

{@inheritDoc}
lazy() public

{@inheritDoc}
listNested() public

{@inheritDoc}
map() public

{@inheritDoc}
match() public

{@inheritDoc}
max() public

{@inheritDoc}
median() public

{@inheritDoc}
min() public

{@inheritDoc}
nest() public

{@inheritDoc}
next() public

Advances the cursor one position
optimizeUnwrap() protected

Unwraps this iterator and returns the simplest traversable that can be used for getting the data out
prepend() public

{@inheritDoc}
prependItem() public

{@inheritDoc}
reduce() public

{@inheritDoc}
reject() public

{@inheritDoc}
sample() public

{@inheritDoc}
shuffle() public

{@inheritDoc}
skip() public

{@inheritDoc}
some() public

{@inheritDoc}
sortBy() public

{@inheritDoc}
stopWhen() public

{@inheritDoc}
sumOf() public

{@inheritDoc}
take() public

{@inheritDoc}
takeLast() public

{@inheritDoc}
through() public

{@inheritDoc}
toArray() public

{@inheritDoc}
toList() public

{@inheritDoc}
transpose() public

{@inheritDoc}
unfold() public

{@inheritDoc}
unwrap() public

{@inheritDoc}
zip() public

{@inheritDoc}
zipWith() public

{@inheritDoc}

Method Detail

__construct() ¶ public

__construct(RecursiveIterator $items, string|callable $valuePath, string|callable $keyPath, string $spacer, int $mode = RecursiveIteratorIterator::SELF_FIRST)

Constructor

Parameters

RecursiveIterator $items: The iterator to flatten.
string|callable $valuePath: The property to extract or a callable to return the display value.
string|callable $keyPath: The property to use as iteration key or a callable returning the key value.
string $spacer: The string to use for prefixing the values according to their depth in the tree.
int $mode optional: Iterator mode.

_createMatcherFilter() ¶ protected

_createMatcherFilter(array $conditions): callable

Returns a callable that receives a value and will return whether or not it matches certain condition.

Parameters

array $conditions: A key-value list of conditions to match where the key is the property path to get from the current item and the value is the value to be compared the item with.

Returns

callable

_extract() ¶ protected

_extract(arrayArrayAccess $data, array $path): mixed

Returns a column from $data that can be extracted by iterating over the column names contained in $path. It will return arrays for elements in represented with {*}

Parameters

arrayArrayAccess $data: Data.
array $path: Path to extract from.

Returns

mixed

_fetchCurrent() ¶ protected

_fetchCurrent(): mixed

Returns the current iteration element and caches its value

Returns

mixed

_propertyExtractor() ¶ protected

_propertyExtractor(string|callable $callback): callable

Returns a callable that can be used to extract a property or column from an array or object based on a dot separated path.

Parameters

string|callable $callback: A dot separated path of column to follow so that the final one can be returned or a callable that will take care of doing that.

Returns

callable

_simpleExtract() ¶ protected

_simpleExtract(arrayArrayAccess $data, array $path): mixed

Returns a column from $data that can be extracted by iterating over the column names contained in $path

Parameters

arrayArrayAccess $data: Data.
array $path: Path to extract from.

Returns

mixed

_unwrap() ¶ public

_unwrap(): Traversable

Backwards compatible wrapper for unwrap()

Returns

Traversable

append() ¶ public

append(mixed $items)

{@inheritDoc}

Parameters

$items

appendItem() ¶ public

appendItem(mixed $item, mixed $key = null)

{@inheritDoc}

Parameters

$item
$key optional

avg() ¶ public

avg(mixed $matcher = null)

{@inheritDoc}

Parameters

$matcher optional

buffered() ¶ public

buffered(): Cake\Collection\Iterator\BufferedIterator

{@inheritDoc}

Returns

Cake\Collection\Iterator\BufferedIterator

cartesianProduct() ¶ public

cartesianProduct(callable|null $operation = null, callable|null $filter = null): Cake\Collection\CollectionInterface

Parameters

callable|null $operation optional: Operation
callable|null $filter optional: Filter

Returns

Cake\Collection\CollectionInterface

Throws

LogicException

chunk() ¶ public

chunk(mixed $chunkSize)

{@inheritDoc}

Parameters

$chunkSize

chunkWithKeys() ¶ public

chunkWithKeys(mixed $chunkSize, mixed $preserveKeys = true)

{@inheritDoc}

Parameters

$chunkSize
$preserveKeys optional

combine() ¶ public

combine(mixed $keyPath, mixed $valuePath, mixed $groupPath = null)

{@inheritDoc}

Parameters

$keyPath
$valuePath
$groupPath optional

compile() ¶ public

compile(mixed $preserveKeys = true)

{@inheritDoc}

Parameters

$preserveKeys optional

contains() ¶ public

contains(mixed $value)

{@inheritDoc}

Parameters

$value

count() ¶ public

count(): int

{@inheritDoc}

Returns

int

countBy() ¶ public

countBy(mixed $callback)

{@inheritDoc}

Parameters

$callback

countKeys() ¶ public

countKeys(): int

{@inheritDoc}

Returns

int

current() ¶ public

current(): string

Returns the current iteration value

Returns

string

each() ¶ public

each(callable $c)

{@inheritDoc}

Parameters

callable $c

every() ¶ public

every(callable $c)

{@inheritDoc}

Parameters

callable $c

extract() ¶ public

extract(mixed $matcher)

{@inheritDoc}

Parameters

$matcher

filter() ¶ public

filter(callable $c = null): Cake\Collection\Iterator\FilterIterator

{@inheritDoc}

Parameters

callable $c optional

Returns

Cake\Collection\Iterator\FilterIterator

first() ¶ public

first()

{@inheritDoc}

firstMatch() ¶ public

firstMatch(array $conditions)

{@inheritDoc}

Parameters

array $conditions

groupBy() ¶ public

groupBy(mixed $callback)

{@inheritDoc}

Parameters

$callback

indexBy() ¶ public

indexBy(mixed $callback)

{@inheritDoc}

Parameters

$callback

insert() ¶ public

insert(mixed $path, mixed $values): Cake\Collection\Iterator\InsertIterator

{@inheritDoc}

Parameters

$path
$values

Returns

Cake\Collection\Iterator\InsertIterator

isEmpty() ¶ public

isEmpty()

{@inheritDoc}

jsonSerialize() ¶ public

jsonSerialize()

{@inheritDoc}

key() ¶ public

key(): mixed

Returns the current iteration key

Returns

mixed

last() ¶ public

last()

{@inheritDoc}

lazy() ¶ public

lazy()

{@inheritDoc}

listNested() ¶ public

listNested(mixed $dir = 'desc', mixed $nestingKey = 'children'): Cake\Collection\Iterator\TreeIterator

{@inheritDoc}

Parameters

$dir optional
$nestingKey optional

Returns

Cake\Collection\Iterator\TreeIterator

map() ¶ public

map(callable $c): Cake\Collection\Iterator\ReplaceIterator

{@inheritDoc}

Parameters

callable $c

Returns

Cake\Collection\Iterator\ReplaceIterator

match() ¶ public

match(array $conditions)

{@inheritDoc}

Parameters

array $conditions

max() ¶ public

max(mixed $callback, mixed $type = \SORT_NUMERIC)

{@inheritDoc}

Parameters

$callback
$type optional

median() ¶ public

median(mixed $matcher = null)

{@inheritDoc}

Parameters

$matcher optional

min() ¶ public

min(mixed $callback, mixed $type = \SORT_NUMERIC)

{@inheritDoc}

Parameters

$callback
$type optional

nest() ¶ public

nest(mixed $idPath, mixed $parentPath, mixed $nestingKey = 'children')

{@inheritDoc}

Parameters

$idPath
$parentPath
$nestingKey optional

next() ¶ public

next(): void

Advances the cursor one position

Returns

void

optimizeUnwrap() ¶ protected

optimizeUnwrap(): Traversable|array

Unwraps this iterator and returns the simplest traversable that can be used for getting the data out

Returns

Traversable|array

prepend() ¶ public

prepend(mixed $items)

{@inheritDoc}

Parameters

$items

prependItem() ¶ public

prependItem(mixed $item, mixed $key = null)

{@inheritDoc}

Parameters

$item
$key optional

reduce() ¶ public

reduce(callable $c, mixed $zero = null)

{@inheritDoc}

Parameters

callable $c
$zero optional

reject() ¶ public

reject(callable $c): Cake\Collection\Iterator\FilterIterator

{@inheritDoc}

Parameters

callable $c

Returns

Cake\Collection\Iterator\FilterIterator

sample() ¶ public

sample(mixed $size = 10)

{@inheritDoc}

Parameters

$size optional

shuffle() ¶ public

shuffle()

{@inheritDoc}

skip() ¶ public

skip(mixed $howMany)

{@inheritDoc}

Parameters

$howMany

some() ¶ public

some(callable $c)

{@inheritDoc}

Parameters

callable $c

sortBy() ¶ public

sortBy(mixed $callback, mixed $dir = \SORT_DESC, mixed $type = \SORT_NUMERIC)

{@inheritDoc}

Parameters

$callback
$dir optional
$type optional

stopWhen() ¶ public

stopWhen(mixed $condition): Cake\Collection\Iterator\StoppableIterator

{@inheritDoc}

Parameters

$condition

Returns

Cake\Collection\Iterator\StoppableIterator

sumOf() ¶ public

sumOf(mixed $matcher = null)

{@inheritDoc}

Parameters

$matcher optional

take() ¶ public

take(mixed $size = 1, mixed $from = 0)

{@inheritDoc}

Parameters

$size optional
$from optional

takeLast() ¶ public

takeLast(mixed $howMany)

{@inheritDoc}

Parameters

$howMany

through() ¶ public

through(callable $handler)

{@inheritDoc}

Parameters

callable $handler

toArray() ¶ public

toArray(mixed $preserveKeys = true)

{@inheritDoc}

Parameters

$preserveKeys optional

toList() ¶ public

toList()

{@inheritDoc}

transpose() ¶ public

transpose(): Cake\Collection\CollectionInterface

{@inheritDoc}

Returns

Cake\Collection\CollectionInterface

Throws

LogicException

unfold() ¶ public

unfold(callable $transformer = null)

{@inheritDoc}

Parameters

callable $transformer optional

unwrap() ¶ public

unwrap()

{@inheritDoc}

zip() ¶ public

zip(mixed $items)

{@inheritDoc}

Parameters

$items

zipWith() ¶ public

zipWith(mixed $items, mixed $callable)

{@inheritDoc}

Parameters

$items
$callable

Property Detail

`$_current` ¶ protected

Cached value for the current iteration element

Type

mixed

`$_key` ¶ protected

A callable to generate the iteration key

Type

callable

`$_spacer` ¶ protected

The string to use for prefixing the values according to their depth in the tree.

Type

string

`$_value` ¶ protected

A callable to extract the display value

Type

callable

Namespaces

Class TreePrinter

Property Summary

Method Summary

__construct() public

_createMatcherFilter() protected

_extract() protected

_fetchCurrent() protected

_propertyExtractor() protected

_simpleExtract() protected

_unwrap() public deprecated

append() public

appendItem() public

avg() public

buffered() public

cartesianProduct() public

chunk() public

chunkWithKeys() public

combine() public

compile() public

contains() public

count() public

countBy() public

countKeys() public

current() public

each() public

every() public

extract() public

filter() public

first() public

firstMatch() public

groupBy() public

indexBy() public

insert() public

isEmpty() public

jsonSerialize() public

key() public

last() public

lazy() public

listNested() public

map() public

match() public

max() public

median() public

min() public

nest() public

next() public

optimizeUnwrap() protected

prepend() public

prependItem() public

reduce() public

reject() public

sample() public

shuffle() public

skip() public

some() public

sortBy() public

stopWhen() public

sumOf() public

take() public

takeLast() public

through() public

toArray() public

toList() public

transpose() public

unfold() public

unwrap() public

zip() public

zipWith() public

Method Detail

__construct() ¶ public

Parameters

_createMatcherFilter() ¶ protected

Parameters

Returns

_extract() ¶ protected

Parameters

Returns

_fetchCurrent() ¶ protected

Returns