gistfile1.php

<?php

/**
 * @return array the behavior configurations (behavior name=>behavior configuration)
 */
public function behaviors() {
	return array(
		'audit' => array('class' => 'common.extensions.audit.behaviors.AuditBehavior'),
		'image' => array('class' => 'vendor.crisu83.yii-image.behaviors.ImageBehavior'),
	);
}

/* --- */

class AuditBehavior extends CActiveRecordBehavior {
	/**
	 * @var string the name of the id column.
	 */
	public $idAttribute = 'id';

	private $_oldAttributes;

	protected function afterFind($event) {
		$this->_oldAttributes = $this->owner->getAttributes();
	}

	protected function beforeSave($event) {
		$owner = $this->getOwner();
		foreach ($owner->getAttributes() as $name => $value) {
			if ((string)$value !== (string)$this->_oldAttributes[$name]) {
				/* @var AuditChanger $user */
				$user = Yii::app()->getUser();
				$entry = new AuditEntry;
				$entry->changer = $user->modelClass;
				$entry->changeId = $user->{$user->idAttribute};
				$entry->model = get_class($owner);
				$entry->modelId = $owner->{$this->idAttribute};
				$entry->attribute = $name;
				$entry->oldValue = $this->_oldAttributes[$name];
				$entry->newValue = $this->owner->attributes[$name];
				$entry->save(false);
			}
		}
	}
}