<?php
/* SVN FILE: $Id$ */
/**
* Library of array functions for Cake.
*
* Internal use only.
*
* PHP versions 4 and 5
*
* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
* Copyright (c) 2005, CakePHP Authors/Developers
*
* Author(s): Michal Tatarynowicz aka Pies <tatarynowicz@gmail.com>
* Larry E. Masters aka PhpNut <nut@phpnut.com>
* Kamil Dzielinski aka Brego <brego.dk@gmail.com>
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @author CakePHP Authors/Developers
* @copyright Copyright (c) 2005, CakePHP Authors/Developers
* @link https://trac.cakephp.org/wiki/Authors Authors/Developers
* @package cake
* @subpackage cake.libs
* @since CakePHP v 0.2.9
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Class used for internal manipulation of multi-dimensional arrays (arrays of arrays).
*
* Long description for class
*
* @package cake
* @subpackage cake.libs
* @since CakePHP v 0.2.9
*/
class NeatArray
{
/**
* Value of NeatArray.
*
* @var array
* @access public
*/
var $value;
/**
* Constructor. Defaults to an empty array.
*
* @param array $value
* @access public
* @uses NeatArray::value
*/
function NeatArray ($value=array())
{
$this->value = $value;
}
/**
* Finds and returns records with $fieldName equal to $value from this NeatArray.
*
* @param string $fieldName
* @param string $value
* @return mixed
* @access public
* @uses NeatArray::value
*/
function findIn ($fieldName, $value)
{
if (!is_array($this->value))
{
return false;
}
$out = false;
foreach ($this->value as $k=>$v)
{
if (isset($v[$fieldName]) && ($v[$fieldName] == $value))
{
$out[$k] = $v;
}
}
return $out;
}
/**
* Checks if $this->value is an array, and removes all empty elements.
*
* @access public
* @uses NeatArray::value
*/
function cleanup ()
{
$out = is_array($this->value)? array(): null;
foreach ($this->value as $k=>$v)
{
if ($v == "0")
{
$out[$k] = $v;
}
elseif ($v)
{
$out[$k] = $v;
}
}
$this->value = $out;
}
/**
* Adds elements from given array to itself.
*
* @param string $value
* @return bool
* @access public
* @uses NeatArray::value
*/
function add ($value)
{
return ($this->value = $this->plus($value))? true: false;
}
/**
* Returns itself merged with given array.
*
* @param array $value Array to add to NeatArray.
* @return array
* @access public
* @uses NeatArray::value
*/
function plus ($value)
{
return array_merge($this->value, (is_array($value)? $value: array($value)));
}
/**
* Counts repeating strings and returns an array of totals.
*
* @param int $sortedBy A value of 1 sorts by values, a value of 2 sorts by keys. Defaults to null (no sorting).
* @return array
* @access public
* @uses NeatArray::value
*/
function totals ($sortedBy=1,$reverse=true)
{
$out = array();
foreach ($this->value as $val)
{
isset($out[$val])? $out[$val]++: $out[$val] = 1;
}
if ($sortedBy == 1)
{
$reverse? arsort($out, SORT_NUMERIC): asort($out, SORT_NUMERIC);
}
if ($sortedBy == 2)
{
$reverse? krsort($out, SORT_STRING): ksort($out, SORT_STRING);
}
return $out;
}
/**
* Performs an array_filter() on the contents of this NeatArray.
*
* @param string $with Name of callback function to perform on each element of this NeatArray.
* @return array
*/
function filter ($with)
{
return $this->value = array_filter($this->value, $with);
}
/**
* Passes each of its values through a specified function or method. Think of PHP's {@link http://php.net/array_walk array_walk()}.
*
* @param string $with Name of callback function
* @return array Returns value of NeatArray::value
* @access public
* @uses NeatArray::value
*/
function walk ($with)
{
array_walk($this->value, $with);
return $this->value;
}
/**
* Apply $template to all elements of this NeatArray, and return the array itself.
*
* @param string $template {@link http://php.net/sprintf sprintf()}-compatible string to be applied to all values of this NeatArray.
* @return array
*/
function sprintf($template)
{
for ($ii=0; $ii<count($this->value); $ii++)
{
$this->value[$ii] = sprintf($template, $this->value[$ii]);
}
return $this->value;
}
/**
* Extracts a value from all array items.
*
* @return array
* @access public
* @uses NeatArray::value
*/
function extract ($name)
{
$out = array();
foreach ($this->value as $val)
{
if (isset($val[$name]))
$out[] = $val[$name];
}
return $out;
}
/**
* Returns a list of unique elements.
*
* @return array
*/
function unique ()
{
return array_unique($this->value);
}
/**
* Removes duplicate elements from the value and returns it.
*
* @return array
*/
function makeUnique ()
{
return $this->value = array_unique($this->value);
}
/**
* Joins an array with myself using a key (like a join between database tables).
*
* Example:
*
* $alice = array('id'=>'1', 'name'=>'Alice');
* $bob = array('id'=>'2', 'name'=>'Bob');
*
* $users = new NeatArray(array($alice, $bob));
*
* $born = array
* (
* array('user_id'=>'1', 'born'=>'1980'),
* array('user_id'=>'2', 'born'=>'1976')
* );
*
* $users->joinWith($born, 'id', 'user_id');
*
* Result:
*
* $users->value == array
* (
* array('id'=>'1', 'name'=>'Alice', 'born'=>'1980'),
* array('id'=>'2', 'name'=>'Bob', 'born'=>'1976')
* );
*
*
* @param array $his The array to join with myself.
* @param string $onMine Key to use on myself.
* @param string $onHis Key to use on him.
* @return array
*/
function joinWith ($his, $onMine, $onHis=null)
{
if (empty($onHis))
{
$onHis = $onMine;
}
$his = new NeatArray($his);
$out = array();
foreach ($this->value as $key=>$val)
{
if ($fromHis = $his->findIn($onHis, $val[$onMine]))
{
list($fromHis) = array_values($fromHis);
$out[$key] = array_merge($val, $fromHis);
}
else
{
$out[$key] = $val;
}
}
return $this->value = $out;
}
/**
* Enter description here...
* @todo Explain this function. almost looks like it creates a tree
*
* @param string $root
* @param string $idKey
* @param string $parentIdKey
* @param string $childrenKey
* @return array
*/
function threaded ($root=null, $idKey='id', $parentIdKey='parent_id', $childrenKey='children')
{
$out = array();
for ($ii=0; $ii<sizeof($this->value); $ii++)
{
if ($this->value[$ii][$parentIdKey] == $root)
{
$tmp = $this->value[$ii];
$tmp[$childrenKey] = isset($this->value[$ii][$idKey])?
$this->threaded($this->value[$ii][$idKey], $idKey, $parentIdKey, $childrenKey):
null;
$out[] = $tmp;
}
}
return $out;
}
}
?>