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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\base;
/**
* @include @yii/base/Object.md
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class Object
{
/**
* @return string the fully qualified name of this class.
*/
public static function className()
{
return get_called_class();
}
/**
* Constructor.
* The default implementation does two things:
*
* - Initializes the object with the given configuration `$config`.
* - Call [[init()]].
*
* If this method is overridden in a child class, it is recommended that
*
* - the last parameter of the constructor is a configuration array, like `$config` here.
* - call the parent implementation at the end of the constructor.
*
* @param array $config name-value pairs that will be used to initialize the object properties
*/
public function __construct($config = array())
{
foreach ($config as $name => $value) {
$this->$name = $value;
}
$this->init();
}
/**
* Initializes the object.
* This method is invoked at the end of the constructor after the object is initialized with the
* given configuration.
*/
public function init()
{
}
/**
* Returns the value of an object property.
*
* Do not call this method directly as it is a PHP magic method that
* will be implicitly called when executing `$value = $object->property;`.
* @param string $name the property name
* @return mixed the property value, event handlers attached to the event,
* the named behavior, or the value of a behavior's property
* @throws UnknownPropertyException if the property is not defined
* @see __set
*/
public function __get($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter();
} else {
throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}
}
/**
* Sets value of an object property.
*
* Do not call this method directly as it is a PHP magic method that
* will be implicitly called when executing `$object->property = $value;`.
* @param string $name the property name or the event name
* @param mixed $value the property value
* @throws UnknownPropertyException if the property is not defined
* @throws InvalidCallException if the property is read-only.
* @see __get
*/
public function __set($name, $value)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter($value);
} elseif (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
} else {
throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}
}
/**
* Checks if the named property is set (not null).
*
* Do not call this method directly as it is a PHP magic method that
* will be implicitly called when executing `isset($object->property)`.
*
* Note that if the property is not defined, false will be returned.
* @param string $name the property name or the event name
* @return boolean whether the named property is set (not null).
*/
public function __isset($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter() !== null;
} else {
return false;
}
}
/**
* Sets an object property to null.
*
* Do not call this method directly as it is a PHP magic method that
* will be implicitly called when executing `unset($object->property)`.
*
* Note that if the property is not defined, this method will do nothing.
* If the property is read-only, it will throw an exception.
* @param string $name the property name
* @throws InvalidCallException if the property is read only.
*/
public function __unset($name)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter(null);
} elseif (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Unsetting read-only property: ' . get_class($this) . '::' . $name);
}
}
/**
* Calls the named method which is not a class method.
* If the name refers to a component property whose value is
* an anonymous function, the method will execute the function.
*
* Do not call this method directly as it is a PHP magic method that
* will be implicitly called when an unknown method is being invoked.
* @param string $name the method name
* @param array $params method parameters
* @throws UnknownMethodException when calling unknown method
* @return mixed the method return value
*/
public function __call($name, $params)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
$func = $this->$getter();
if ($func instanceof \Closure) {
return call_user_func_array($func, $params);
}
}
throw new UnknownMethodException('Unknown method: ' . get_class($this) . "::$name()");
}
/**
* Returns a value indicating whether a property is defined.
* A property is defined if:
*
* - the class has a getter or setter method associated with the specified name
* (in this case, property name is case-insensitive);
* - the class has a member variable with the specified name (when `$checkVar` is true);
*
* @param string $name the property name
* @param boolean $checkVar whether to treat member variables as properties
* @return boolean whether the property is defined
* @see canGetProperty
* @see canSetProperty
*/
public function hasProperty($name, $checkVar = true)
{
return $this->canGetProperty($name, $checkVar) || $this->canSetProperty($name, false);
}
/**
* Returns a value indicating whether a property can be read.
* A property is readable if:
*
* - the class has a getter method associated with the specified name
* (in this case, property name is case-insensitive);
* - the class has a member variable with the specified name (when `$checkVar` is true);
*
* @param string $name the property name
* @param boolean $checkVar whether to treat member variables as properties
* @return boolean whether the property can be read
* @see canSetProperty
*/
public function canGetProperty($name, $checkVar = true)
{
return method_exists($this, 'get' . $name) || $checkVar && property_exists($this, $name);
}
/**
* Returns a value indicating whether a property can be set.
* A property is writable if:
*
* - the class has a setter method associated with the specified name
* (in this case, property name is case-insensitive);
* - the class has a member variable with the specified name (when `$checkVar` is true);
*
* @param string $name the property name
* @param boolean $checkVar whether to treat member variables as properties
* @return boolean whether the property can be written
* @see canGetProperty
*/
public function canSetProperty($name, $checkVar = true)
{
return method_exists($this, 'set' . $name) || $checkVar && property_exists($this, $name);
}
}