Removing the 3rd param from ObjectCollection::load() and adding a uniform setting of 'callbacks'. This setting is used to disable callbacks on objects by convention. Test cases updated.

cake/libs/controller/component_collection.php

@@ -56,14 +56,15 @@ class ComponentCollection extends ObjectCollection {
 
 /**
  * Loads/constructs a component.  Will return the instance in the registry if it already exists.
+ * You can use `$settings['callbacks'] = false` to disable callbacks on a component when loading it. 
+ * Callbacks default to on.
  * 
  * @param string $component Component name to load
  * @param array $settings Settings for the component.
- * @param boolean $enable Whether or not this component should be enabled by default
  * @return Component A component object, Either the existing loaded component or a new one.
  * @throws MissingComponentFileException, MissingComponentClassException when the component could not be found
  */
-	public function load($component, $settings = array(), $enable = true) {
+	public function load($component, $settings = array()) {
 		list($plugin, $name) = pluginSplit($component);
 		if (isset($this->_loaded[$name])) {
 			return $this->_loaded[$name];
@@ -84,6 +85,7 @@ class ComponentCollection extends ObjectCollection {
 			}
 		}
 		$this->_loaded[$name] = new $componentClass($this, $settings);
+		$enable = isset($settings['callbacks']) ? $settings['callbacks'] : true;
 		if ($enable === true) {
 			$this->_enabled[] = $name;
 		}

cake/libs/model/behavior_collection.php

@@ -81,15 +81,15 @@ class BehaviorCollection extends ObjectCollection {
 	}
 
 /**
- * Loads a behavior into the collection.
+ * Loads a behavior into the collection. You can use use `$config['callbacks'] = false`
+ * to load a behavior with callbacks disabled. By default callbacks are enabled.
  *
  * @param string $behavior CamelCased name of the behavior to load
  * @param array $config Behavior configuration parameters
- * @param boolean $enable Whether or not this helper should be enabled by default
  * @return boolean True on success, false on failure
  * @throws MissingBehaviorFileException or MissingBehaviorClassException when a behavior could not be found.
  */
-	public function load($behavior, $config = array(), $enable = true) {
+	public function load($behavior, $config = array()) {
 		list($plugin, $name) = pluginSplit($behavior);
 		$class = $name . 'Behavior';
 
@@ -150,7 +150,7 @@ class BehaviorCollection extends ObjectCollection {
 			}
 		}
 
-		$configDisabled = isset($config['enabled']) && $config['enabled'] === false;
+		$configDisabled = isset($config['callbacks']) && $config['callbacks'] === false;
 		if (!in_array($name, $this->_enabled) && !$configDisabled) {
 			$this->enable($name);
 		} elseif ($configDisabled) {

cake/libs/object_collection.php

@@ -38,12 +38,14 @@ abstract class ObjectCollection {
 /**
  * Loads a new object onto the collection. Can throw a variety of exceptions
  *
+ * Implementations of this class support a `$options['callbacks']` flag which enables/disables
+ * a loaded object.
+ *
  * @param string $name Name of object to load.
  * @param array $options Array of configuration options for the object to be constructed.
- * @param boolean $enable Whether or not this helper should be enabled by default
  * @return object the constructed object
  */
-	abstract public function load($name, $options = array(), $enable = true);
+	abstract public function load($name, $options = array());
 
 /**
  * Trigger a callback method on every object in the collection.

cake/libs/view/helper_collection.php

@@ -44,11 +44,10 @@ class HelperCollection extends ObjectCollection {
  * 
  * @param string $helper Helper name to load
  * @param array $settings Settings for the helper.
- * @param boolean $enable Whether or not this helper should be enabled by default
  * @return Helper A helper object, Either the existing loaded helper or a new one.
  * @throws MissingHelperFileException, MissingHelperClassException when the helper could not be found
  */
-	public function load($helper, $settings = array(), $enable = true) {
+	public function load($helper, $settings = array()) {
 		list($plugin, $name) = pluginSplit($helper, true);
 
 		if (isset($this->_loaded[$name])) {
@@ -75,7 +74,7 @@ class HelperCollection extends ObjectCollection {
 		foreach ($vars as $var) {
 			$this->_loaded[$name]->{$var} = $this->_View->{$var};
 		}
-		$enable = isset($settings['callbacks']) ? $settings['callbacks'] : $enable;
+		$enable = isset($settings['callbacks']) ? $settings['callbacks'] : false;
 		if ($enable === true) {
 			$this->_enabled[] = $name;
 		}

cake/libs/view/view.php

@@ -673,14 +673,15 @@ class View extends Object {
 	}
 
 /**
- * Loads a helper.  Delegates to the HelperCollection to load the helper
+ * Loads a helper.  Delegates to the `HelperCollection::load()` to load the helper
  *
  * @param string $helperName Name of the helper to load.
  * @param array $settings Settings for the helper
  * @return Helper a constructed helper object.
+ * @see HelperCollection::load()
  */
-	public function loadHelper($helperName, $settings = array(), $attach = true) {
-		return $this->Helpers->load($helperName, $settings, $attach);
+	public function loadHelper($helperName, $settings = array()) {
+		return $this->Helpers->load($helperName, $settings);
 	}
 
 /**

cake/tests/cases/libs/controller/component_collection.test.php

@@ -65,7 +65,7 @@ class ComponentCollectionTest extends CakeTestCase {
  * @return void
  */
 	function testLoadWithEnableFalse() {
-		$result = $this->Components->load('Cookie', array(), false);
+		$result = $this->Components->load('Cookie', array('callbacks' => false));
 		$this->assertType('CookieComponent', $result);
 		$this->assertType('CookieComponent', $this->Components->Cookie);