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Make filter() more flexible.

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mark_story 2012-02-22 21:53:33 -05:00
parent 239f52c48c
commit 5b4b936157
1 changed files with 20 additions and 12 deletions
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32
lib/Cake/Utility/Set2.php
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@ -36,7 +36,8 @@ class Set2 {
* but is faster for simple operations. * but is faster for simple operations.
* *
* @param array $data Array of data to operate on. * @param array $data Array of data to operate on.
* @param string $path The path being searched for. * @param mixed $path The path being searched for. Either a dot
* separated string, or an array of path segments.
* @return mixed The value fetched from the array, or null. * @return mixed The value fetched from the array, or null.
*/ */
public static function get(array $data, $path) { public static function get(array $data, $path) {
@ -484,19 +485,21 @@ class Set2 {
} }
/** /**
* Recursively filters empty elements out of a route array, excluding '0'. * Recursively filters a data set.
* *
* @param array $data Either an array to filter, or value when in callback * @param array $data Either an array to filter, or value when in callback
* @param callable $callback A function to filter the data with. Defaults to
* `self::_filter()` Which strips out all non-zero empty values.
* @return array Filtered array * @return array Filtered array
* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::filter * @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::filter
*/ */
public static function filter(array $data) { public static function filter(array $data, $callback = array('self', '_filter')) {
foreach ($data as $k => $v) { foreach ($data as $k => $v) {
if (is_array($v)) { if (is_array($v)) {
$data[$k] = self::filter($v); $data[$k] = self::filter($v, $callback);
} }
} }
return array_filter($data, array('self', '_filter')); return array_filter($data, $callback);
} }
/** /**
@ -817,16 +820,21 @@ class Set2 {
/** /**
* Takes in a flat array and returns a nested array * Takes in a flat array and returns a nested array
* *
* @param mixed $data * ### Options:
*
* - `children` The key name to use in the resultset for children.
* - `idPath` The path to a key that identifies each entry. Should be
* compatible with Set2::extract(). Defaults to `{n}.$alias.id`
* - `parentPath` The path to a key that identifies the parent of each entry.
* Should be compatible with Set2::extract(). Defaults to `{n}.$alias.parent_id`
* - `root` The id of the desired top-most result.
*
* @param mixed $data The data to nest.
* @param array $options Options are: * @param array $options Options are:
* children - the key name to use in the resultset for children
* idPath - the path to a key that identifies each entry
* parentPath - the path to a key that identifies the parent of each entry
* root - the id of the desired top-most result
* @return array of results, nested * @return array of results, nested
* @link * @see Set::extract()
*/ */
public static function nest($data, $options = array()) { public static function nest(array $data, $options = array()) {
if (!$data) { if (!$data) {
return $data; return $data;
} }