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https://github.com/silverstripe/silverstripe-framework
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MINOR Restructured code in Object.php to consistently have properties and important methods like __call() at the top of definitions (no logic changes). Added minor documentation.
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@65058 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Ingo Schommer
parent
d102a902b9
commit
0465365b51
165
core/Object.php
165
core/Object.php
@ -8,6 +8,21 @@
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*/
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class Object {
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/**
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* @var string $class
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*/
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public $class;
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/**
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* @var array $statics
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*/
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protected static $statics = array();
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/**
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* @var array $static_cached
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*/
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protected static $static_cached = array();
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/**
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* This DataObjects extensions, eg Versioned.
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* @var array
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@ -27,18 +42,40 @@ class Object {
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*/
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public static $extensions = null;
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/**
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* @var array $extraStatics
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*/
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protected static $extraStatics = array();
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/**
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* @var array $classConstructed
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*/
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protected static $classConstructed = array();
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/**
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* @var array $extraMethods
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*/
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protected static $extraMethods = array();
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/**
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* @var array $builtInMethods
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*/
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protected static $builtInMethods = array();
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/**
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* Use the class in the value instead of the class in the key
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* @var array $custom_classes Use the class in the value instead of the class in the key
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*/
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private static $custom_classes = array();
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/**
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* @var array $strong_classes
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*/
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private static $strong_classes = array();
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/**
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* @var array $uninherited_statics
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*/
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private static $uninherited_statics = array();
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function __construct() {
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$this->class = get_class($this);
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@ -58,6 +95,45 @@ class Object {
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}
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}
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/**
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* Calls a method.
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* Extra methods can be hooked to a class using
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*/
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public function __call($methodName, $args) {
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$lowerMethodName = strtolower($methodName);
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if(isset(Object::$extraMethods[$this->class][$lowerMethodName])) {
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$config = Object::$extraMethods[$this->class][$lowerMethodName];
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if(isset($config['parameterName'])) {
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if(isset($config['arrayIndex'])) $obj = $this->{$config['parameterName']}[$config['arrayIndex']];
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else $obj = $this->{$config['parameterName']};
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if($obj) {
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return call_user_func_array(array(&$obj, $methodName), $args);
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} else {
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if($this->destroyed) user_error("Attempted to call $methodName on destroyed '$this->class' object", E_USER_ERROR);
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else user_error("'$this->class' object doesn't have a parameter $config[parameterName]($config[arrayIndex]) to pass control to. Perhaps this object has been mistakenly destroyed?", E_USER_WARNING);
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}
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} else if(isset($config['wrap'])) {
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array_unshift($args, $config['methodName']);
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return call_user_func_array(array(&$this, $config['wrap']), $args);
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} else if(isset($config['function'])) {
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$function = $config['function'];
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return $function($this, $args);
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} else if($config['function_str']) {
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$function = Object::$extraMethods[$this->class][strtolower($methodName)]['function'] = create_function('$obj, $args', $config['function_str']);
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return $function($this, $args);
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} else {
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user_error("Object::__call() Method '$methodName' in class '$this->class' an invalid format: " . var_export(Object::$extraMethods[$this->class][$methodName],true), E_USER_ERROR);
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}
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} else {
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user_error("Object::__call() Method '$methodName' not found in class '$this->class'", E_USER_ERROR);
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}
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}
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/**
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* This function allows you to overload class creation methods, so certain classes are
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* always created correctly over your system.
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@ -132,16 +208,6 @@ class Object {
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return new $classToCreate( $arg0, $arg1, $arg2, $arg3, $arg4, $arg5, $arg6, $arg7, $arg8 );
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}
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/**
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* Returns true if this object "exists", i.e., has a sensible value.
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* Overload this in subclasses.
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* For example, an empty DataObject record could return false.
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*/
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public function exists() {
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return true;
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}
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/**
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* Returns true if the given method exists.
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*/
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@ -159,45 +225,6 @@ class Object {
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return false;
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}
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/**
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* Calls a method.
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* Extra methods can be hooked to a class using
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*/
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public function __call($methodName, $args) {
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$lowerMethodName = strtolower($methodName);
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if(isset(Object::$extraMethods[$this->class][$lowerMethodName])) {
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$config = Object::$extraMethods[$this->class][$lowerMethodName];
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if(isset($config['parameterName'])) {
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if(isset($config['arrayIndex'])) $obj = $this->{$config['parameterName']}[$config['arrayIndex']];
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else $obj = $this->{$config['parameterName']};
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if($obj) {
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return call_user_func_array(array(&$obj, $methodName), $args);
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} else {
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if($this->destroyed) user_error("Attempted to call $methodName on destroyed '$this->class' object", E_USER_ERROR);
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else user_error("'$this->class' object doesn't have a parameter $config[parameterName]($config[arrayIndex]) to pass control to. Perhaps this object has been mistakenly destroyed?", E_USER_WARNING);
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}
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} else if(isset($config['wrap'])) {
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array_unshift($args, $config['methodName']);
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return call_user_func_array(array(&$this, $config['wrap']), $args);
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} else if(isset($config['function'])) {
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$function = $config['function'];
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return $function($this, $args);
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} else if($config['function_str']) {
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$function = Object::$extraMethods[$this->class][strtolower($methodName)]['function'] = create_function('$obj, $args', $config['function_str']);
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return $function($this, $args);
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} else {
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user_error("Object::__call() Method '$methodName' in class '$this->class' an invalid format: " . var_export(Object::$extraMethods[$this->class][$methodName],true), E_USER_ERROR);
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}
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} else {
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user_error("Object::__call() Method '$methodName' not found in class '$this->class'", E_USER_ERROR);
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}
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}
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/**
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* Add the all methods from a given parameter to this object.
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* This is used for extensions.
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@ -301,14 +328,6 @@ class Object {
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}
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}
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function parentClass() {
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return get_parent_class($this);
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}
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function is_a($class) {
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return is_a($this, $class);
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}
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/**
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* Set an uninherited static variable
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*/
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@ -342,10 +361,6 @@ class Object {
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return isset(Object::$uninherited_statics[$this->class][$name]) ? Object::$uninherited_statics[$this->class][$name] : null;
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}
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protected static $statics = array();
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protected static $static_cached = array();
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/**
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* Get a static variable.
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*
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@ -380,8 +395,30 @@ class Object {
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Object::$static_cached[$this->class][$name] = true;
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}
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public $class;
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private static $uninherited_statics = array();
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/**
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* Returns true if this object "exists", i.e., has a sensible value.
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* Overload this in subclasses.
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* For example, an empty DataObject record could return false.
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*
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* @return boolean
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*/
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public function exists() {
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return true;
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}
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function parentClass() {
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return get_parent_class($this);
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}
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/**
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* Wrapper for PHP's is_a()
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*
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* @param string $class
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* @return boolean
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*/
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function is_a($class) {
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return is_a($this, $class);
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}
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public function __toString() {
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return $this->class;
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