icingaweb2/library/Icinga/User/Preferences.php

170 lines
3.5 KiB
PHP

<?php
/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
namespace Icinga\User;
use Countable;
/**
* User preferences container
*
* Usage example:
* <code>
* <?php
*
* use Icinga\User\Preferences;
*
* $preferences = new Preferences(); // Start with empty preferences
*
* $preferences = new Preferences(array('aPreference' => 'value')); // Start with initial preferences
*
* $preferences->aNewPreference = 'value'; // Set a preference
*
* unset($preferences->aPreference); // Unset a preference
*
* // Retrieve a preference and return a default value if the preference does not exist
* $anotherPreference = $preferences->get('anotherPreference', 'defaultValue');
*/
class Preferences implements Countable
{
/**
* Preferences key-value array
*
* @var array
*/
protected $preferences = array();
/**
* Constructor
*
* @param array $preferences Preferences key-value array
*/
public function __construct(array $preferences = array())
{
$this->preferences = $preferences;
}
/**
* Count all preferences
*
* @return int The number of preferences
*/
public function count()
{
return count($this->preferences);
}
/**
* Determine whether a preference exists
*
* @param string $name
*
* @return bool
*/
public function has($name)
{
return array_key_exists($name, $this->preferences);
}
/**
* Write data to a preference
*
* @param string $name
* @param mixed $value
*/
public function __set($name, $value)
{
$this->preferences[$name] = $value;
}
/**
* Retrieve a preference section
*
* @param string $name
*
* @return array|null
*/
public function get($name)
{
if (array_key_exists($name, $this->preferences)) {
return $this->preferences[$name];
}
return null;
}
/**
* Retrieve a value from a specific section
*
* @param string $section
* @param string $name
* @param null $default
*
* @return array|null
*/
public function getValue($section, $name, $default = null)
{
if (array_key_exists($section, $this->preferences)
&& array_key_exists($name, $this->preferences[$section])
) {
return $this->preferences[$section][$name];
}
return $default;
}
/**
* Magic method so that $obj->value will work.
*
* @param string $name
*
* @return mixed
*/
public function __get($name)
{
return $this->get($name);
}
/**
* Remove a given preference
*
* @param string $name Preference name
*/
public function remove($name)
{
unset($this->preferences[$name]);
}
/**
* Determine if a preference is set and is not NULL
*
* @param string $name Preference name
*
* @return bool
*/
public function __isset($name)
{
return isset($this->preferences[$name]);
}
/**
* Unset a given preference
*
* @param string $name Preference name
*/
public function __unset($name)
{
$this->remove($name);
}
/**
* Get preferences as array
*
* @return array
*/
public function toArray()
{
return $this->preferences;
}
}