diff cake/libs/model/model.php @ 0:261e66bd5a0c

hg init
author Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
date Sun, 24 Jul 2011 21:08:31 +0900
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cake/libs/model/model.php	Sun Jul 24 21:08:31 2011 +0900
@@ -0,0 +1,3074 @@
+<?php
+/**
+ * Object-relational mapper.
+ *
+ * DBO-backed object data model, for mapping database tables to Cake objects.
+ *
+ * PHP versions 5
+ *
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.libs.model
+ * @since         CakePHP(tm) v 0.10.0.0
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+/**
+ * Included libs
+ */
+App::import('Core', array('ClassRegistry', 'Validation', 'Set', 'String'));
+App::import('Model', 'ModelBehavior', false);
+App::import('Model', 'ConnectionManager', false);
+
+if (!class_exists('Overloadable')) {
+	require LIBS . 'overloadable.php';
+}
+
+/**
+ * Object-relational mapper.
+ *
+ * DBO-backed object data model.
+ * Automatically selects a database table name based on a pluralized lowercase object class name
+ * (i.e. class 'User' => table 'users'; class 'Man' => table 'men')
+ * The table is required to have at least 'id auto_increment' primary key.
+ *
+ * @package       cake
+ * @subpackage    cake.cake.libs.model
+ * @link          http://book.cakephp.org/view/1000/Models
+ */
+class Model extends Overloadable {
+
+/**
+ * The name of the DataSource connection that this Model uses
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#useDbConfig-1058
+ */
+	var $useDbConfig = 'default';
+
+/**
+ * Custom database table name, or null/false if no table association is desired.
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#useTable-1059
+ */
+	var $useTable = null;
+
+/**
+ * Custom display field name. Display fields are used by Scaffold, in SELECT boxes' OPTION elements.
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#displayField-1062
+ */
+	var $displayField = null;
+
+/**
+ * Value of the primary key ID of the record that this model is currently pointing to.
+ * Automatically set after database insertions.
+ *
+ * @var mixed
+ * @access public
+ */
+	var $id = false;
+
+/**
+ * Container for the data that this model gets from persistent storage (usually, a database).
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#data-1065
+ */
+	var $data = array();
+
+/**
+ * Table name for this Model.
+ *
+ * @var string
+ * @access public
+ */
+	var $table = false;
+
+/**
+ * The name of the primary key field for this model.
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#primaryKey-1061
+ */
+	var $primaryKey = null;
+
+/**
+ * Field-by-field table metadata.
+ *
+ * @var array
+ * @access protected
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#_schema-1066
+ */
+	var $_schema = null;
+
+/**
+ * List of validation rules. Append entries for validation as ('field_name' => '/^perl_compat_regexp$/')
+ * that have to match with preg_match(). Use these rules with Model::validate()
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#validate-1067
+ * @link http://book.cakephp.org/view/1143/Data-Validation
+ */
+	var $validate = array();
+
+/**
+ * List of validation errors.
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1182/Validating-Data-from-the-Controller
+ */
+	var $validationErrors = array();
+
+/**
+ * Database table prefix for tables in model.
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#tablePrefix-1060
+ */
+	var $tablePrefix = null;
+
+/**
+ * Name of the model.
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#name-1068
+ */
+	var $name = null;
+
+/**
+ * Alias name for model.
+ *
+ * @var string
+ * @access public
+ */
+	var $alias = null;
+
+/**
+ * List of table names included in the model description. Used for associations.
+ *
+ * @var array
+ * @access public
+ */
+	var $tableToModel = array();
+
+/**
+ * Whether or not to log transactions for this model.
+ *
+ * @var boolean
+ * @access public
+ */
+	var $logTransactions = false;
+
+/**
+ * Whether or not to cache queries for this model.  This enables in-memory
+ * caching only, the results are not stored beyond the current request.
+ *
+ * @var boolean
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#cacheQueries-1069
+ */
+	var $cacheQueries = false;
+
+/**
+ * Detailed list of belongsTo associations.
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1042/belongsTo
+ */
+	var $belongsTo = array();
+
+/**
+ * Detailed list of hasOne associations.
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1041/hasOne
+ */
+	var $hasOne = array();
+
+/**
+ * Detailed list of hasMany associations.
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1043/hasMany
+ */
+	var $hasMany = array();
+
+/**
+ * Detailed list of hasAndBelongsToMany associations.
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1044/hasAndBelongsToMany-HABTM
+ */
+	var $hasAndBelongsToMany = array();
+
+/**
+ * List of behaviors to load when the model object is initialized. Settings can be
+ * passed to behaviors by using the behavior name as index. Eg:
+ *
+ * var $actsAs = array('Translate', 'MyBehavior' => array('setting1' => 'value1'))
+ *
+ * @var array
+ * @access public
+ * @link http://book.cakephp.org/view/1072/Using-Behaviors
+ */
+	var $actsAs = null;
+
+/**
+ * Holds the Behavior objects currently bound to this model.
+ *
+ * @var BehaviorCollection
+ * @access public
+ */
+	var $Behaviors = null;
+
+/**
+ * Whitelist of fields allowed to be saved.
+ *
+ * @var array
+ * @access public
+ */
+	var $whitelist = array();
+
+/**
+ * Whether or not to cache sources for this model.
+ *
+ * @var boolean
+ * @access public
+ */
+	var $cacheSources = true;
+
+/**
+ * Type of find query currently executing.
+ *
+ * @var string
+ * @access public
+ */
+	var $findQueryType = null;
+
+/**
+ * Number of associations to recurse through during find calls. Fetches only
+ * the first level by default.
+ *
+ * @var integer
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#recursive-1063
+ */
+	var $recursive = 1;
+
+/**
+ * The column name(s) and direction(s) to order find results by default.
+ *
+ * var $order = "Post.created DESC";
+ * var $order = array("Post.view_count DESC", "Post.rating DESC");
+ *
+ * @var string
+ * @access public
+ * @link http://book.cakephp.org/view/1057/Model-Attributes#order-1064
+ */
+	var $order = null;
+
+/**
+ * Array of virtual fields this model has.  Virtual fields are aliased
+ * SQL expressions. Fields added to this property will be read as other fields in a model
+ * but will not be saveable.
+ *
+ * `var $virtualFields = array('two' => '1 + 1');`
+ *
+ * Is a simplistic example of how to set virtualFields
+ *
+ * @var array
+ * @access public
+ */
+	var $virtualFields = array();
+
+/**
+ * Default list of association keys.
+ *
+ * @var array
+ * @access private
+ */
+	var $__associationKeys = array(
+		'belongsTo' => array('className', 'foreignKey', 'conditions', 'fields', 'order', 'counterCache'),
+		'hasOne' => array('className', 'foreignKey','conditions', 'fields','order', 'dependent'),
+		'hasMany' => array('className', 'foreignKey', 'conditions', 'fields', 'order', 'limit', 'offset', 'dependent', 'exclusive', 'finderQuery', 'counterQuery'),
+		'hasAndBelongsToMany' => array('className', 'joinTable', 'with', 'foreignKey', 'associationForeignKey', 'conditions', 'fields', 'order', 'limit', 'offset', 'unique', 'finderQuery', 'deleteQuery', 'insertQuery')
+	);
+
+/**
+ * Holds provided/generated association key names and other data for all associations.
+ *
+ * @var array
+ * @access private
+ */
+	var $__associations = array('belongsTo', 'hasOne', 'hasMany', 'hasAndBelongsToMany');
+
+/**
+ * Holds model associations temporarily to allow for dynamic (un)binding.
+ *
+ * @var array
+ * @access private
+ */
+	var $__backAssociation = array();
+
+/**
+ * The ID of the model record that was last inserted.
+ *
+ * @var integer
+ * @access private
+ */
+	var $__insertID = null;
+
+/**
+ * The number of records returned by the last query.
+ *
+ * @var integer
+ * @access private
+ */
+	var $__numRows = null;
+
+/**
+ * The number of records affected by the last query.
+ *
+ * @var integer
+ * @access private
+ */
+	var $__affectedRows = null;
+
+/**
+ * List of valid finder method options, supplied as the first parameter to find().
+ *
+ * @var array
+ * @access protected
+ */
+	var $_findMethods = array(
+		'all' => true, 'first' => true, 'count' => true,
+		'neighbors' => true, 'list' => true, 'threaded' => true
+	);
+
+/**
+ * Constructor. Binds the model's database table to the object.
+ *
+ * If `$id` is an array it can be used to pass several options into the model.
+ *
+ * - id - The id to start the model on.
+ * - table - The table to use for this model.
+ * - ds - The connection name this model is connected to.
+ * - name - The name of the model eg. Post.
+ * - alias - The alias of the model, this is used for registering the instance in the `ClassRegistry`.
+ *   eg. `ParentThread`
+ *
+ * ### Overriding Model's __construct method.
+ *
+ * When overriding Model::__construct() be careful to include and pass in all 3 of the
+ * arguments to `parent::__construct($id, $table, $ds);`
+ *
+ * ### Dynamically creating models
+ *
+ * You can dynamically create model instances using the $id array syntax.
+ *
+ * {{{
+ * $Post = new Model(array('table' => 'posts', 'name' => 'Post', 'ds' => 'connection2'));
+ * }}}
+ *
+ * Would create a model attached to the posts table on connection2.  Dynamic model creation is useful
+ * when you want a model object that contains no associations or attached behaviors.
+ *
+ * @param mixed $id Set this ID for this model on startup, can also be an array of options, see above.
+ * @param string $table Name of database table to use.
+ * @param string $ds DataSource connection name.
+ */
+	function __construct($id = false, $table = null, $ds = null) {
+		parent::__construct();
+
+		if (is_array($id)) {
+			extract(array_merge(
+				array(
+					'id' => $this->id, 'table' => $this->useTable, 'ds' => $this->useDbConfig,
+					'name' => $this->name, 'alias' => $this->alias
+				),
+				$id
+			));
+		}
+
+		if ($this->name === null) {
+			$this->name = (isset($name) ? $name : get_class($this));
+		}
+
+		if ($this->alias === null) {
+			$this->alias = (isset($alias) ? $alias : $this->name);
+		}
+
+		if ($this->primaryKey === null) {
+			$this->primaryKey = 'id';
+		}
+
+		ClassRegistry::addObject($this->alias, $this);
+
+		$this->id = $id;
+		unset($id);
+
+		if ($table === false) {
+			$this->useTable = false;
+		} elseif ($table) {
+			$this->useTable = $table;
+		}
+
+		if ($ds !== null) {
+			$this->useDbConfig = $ds;
+		}
+
+		if (is_subclass_of($this, 'AppModel')) {
+			$appVars = get_class_vars('AppModel');
+			$merge = array('_findMethods');
+
+			if ($this->actsAs !== null || $this->actsAs !== false) {
+				$merge[] = 'actsAs';
+			}
+			$parentClass = get_parent_class($this);
+			if (strtolower($parentClass) !== 'appmodel') {
+				$parentVars = get_class_vars($parentClass);
+				foreach ($merge as $var) {
+					if (isset($parentVars[$var]) && !empty($parentVars[$var])) {
+						$appVars[$var] = Set::merge($appVars[$var], $parentVars[$var]);
+					}
+				}
+			}
+
+			foreach ($merge as $var) {
+				if (isset($appVars[$var]) && !empty($appVars[$var]) && is_array($this->{$var})) {
+					$this->{$var} = Set::merge($appVars[$var], $this->{$var});
+				}
+			}
+		}
+		$this->Behaviors = new BehaviorCollection();
+
+		if ($this->useTable !== false) {
+			$this->setDataSource($ds);
+
+			if ($this->useTable === null) {
+				$this->useTable = Inflector::tableize($this->name);
+			}
+			$this->setSource($this->useTable);
+
+			if ($this->displayField == null) {
+				$this->displayField = $this->hasField(array('title', 'name', $this->primaryKey));
+			}
+		} elseif ($this->table === false) {
+			$this->table = Inflector::tableize($this->name);
+		}
+		$this->__createLinks();
+		$this->Behaviors->init($this->alias, $this->actsAs);
+	}
+
+/**
+ * Handles custom method calls, like findBy<field> for DB models,
+ * and custom RPC calls for remote data sources.
+ *
+ * @param string $method Name of method to call.
+ * @param array $params Parameters for the method.
+ * @return mixed Whatever is returned by called method
+ * @access protected
+ */
+	function call__($method, $params) {
+		$result = $this->Behaviors->dispatchMethod($this, $method, $params);
+
+		if ($result !== array('unhandled')) {
+			return $result;
+		}
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		$return = $db->query($method, $params, $this);
+
+		if (!PHP5) {
+			$this->resetAssociations();
+		}
+		return $return;
+	}
+
+/**
+ * Bind model associations on the fly.
+ *
+ * If `$reset` is false, association will not be reset
+ * to the originals defined in the model
+ *
+ * Example: Add a new hasOne binding to the Profile model not
+ * defined in the model source code:
+ *
+ * `$this->User->bindModel( array('hasOne' => array('Profile')) );`
+ *
+ * Bindings that are not made permanent will be reset by the next Model::find() call on this
+ * model.
+ *
+ * @param array $params Set of bindings (indexed by binding type)
+ * @param boolean $reset Set to false to make the binding permanent
+ * @return boolean Success
+ * @access public
+ * @link http://book.cakephp.org/view/1045/Creating-and-Destroying-Associations-on-the-Fly
+ */
+	function bindModel($params, $reset = true) {
+		foreach ($params as $assoc => $model) {
+			if ($reset === true && !isset($this->__backAssociation[$assoc])) {
+				$this->__backAssociation[$assoc] = $this->{$assoc};
+			}
+			foreach ($model as $key => $value) {
+				$assocName = $key;
+
+				if (is_numeric($key)) {
+					$assocName = $value;
+					$value = array();
+				}
+				$modelName = $assocName;
+				$this->{$assoc}[$assocName] = $value;
+
+				if ($reset === false && isset($this->__backAssociation[$assoc])) {
+					$this->__backAssociation[$assoc][$assocName] = $value;
+				}
+			}
+		}
+		$this->__createLinks();
+		return true;
+	}
+
+/**
+ * Turn off associations on the fly.
+ *
+ * If $reset is false, association will not be reset
+ * to the originals defined in the model
+ *
+ * Example: Turn off the associated Model Support request,
+ * to temporarily lighten the User model:
+ *
+ * `$this->User->unbindModel( array('hasMany' => array('Supportrequest')) );`
+ *
+ * unbound models that are not made permanent will reset with the next call to Model::find()
+ *
+ * @param array $params Set of bindings to unbind (indexed by binding type)
+ * @param boolean $reset  Set to false to make the unbinding permanent
+ * @return boolean Success
+ * @access public
+ * @link http://book.cakephp.org/view/1045/Creating-and-Destroying-Associations-on-the-Fly
+ */
+	function unbindModel($params, $reset = true) {
+		foreach ($params as $assoc => $models) {
+			if ($reset === true && !isset($this->__backAssociation[$assoc])) {
+				$this->__backAssociation[$assoc] = $this->{$assoc};
+			}
+			foreach ($models as $model) {
+				if ($reset === false && isset($this->__backAssociation[$assoc][$model])) {
+					unset($this->__backAssociation[$assoc][$model]);
+				}
+				unset($this->{$assoc}[$model]);
+			}
+		}
+		return true;
+	}
+
+/**
+ * Create a set of associations.
+ *
+ * @return void
+ * @access private
+ */
+	function __createLinks() {
+		foreach ($this->__associations as $type) {
+			if (!is_array($this->{$type})) {
+				$this->{$type} = explode(',', $this->{$type});
+
+				foreach ($this->{$type} as $i => $className) {
+					$className = trim($className);
+					unset ($this->{$type}[$i]);
+					$this->{$type}[$className] = array();
+				}
+			}
+
+			if (!empty($this->{$type})) {
+				foreach ($this->{$type} as $assoc => $value) {
+					$plugin = null;
+
+					if (is_numeric($assoc)) {
+						unset ($this->{$type}[$assoc]);
+						$assoc = $value;
+						$value = array();
+						$this->{$type}[$assoc] = $value;
+
+						if (strpos($assoc, '.') !== false) {
+							$value = $this->{$type}[$assoc];
+							unset($this->{$type}[$assoc]);
+							list($plugin, $assoc) = pluginSplit($assoc, true);
+							$this->{$type}[$assoc] = $value;
+						}
+					}
+					$className =  $assoc;
+
+					if (!empty($value['className'])) {
+						list($plugin, $className) = pluginSplit($value['className'], true);
+						$this->{$type}[$assoc]['className'] = $className;
+					}
+					$this->__constructLinkedModel($assoc, $plugin . $className);
+				}
+				$this->__generateAssociation($type);
+			}
+		}
+	}
+
+/**
+ * Private helper method to create associated models of a given class.
+ *
+ * @param string $assoc Association name
+ * @param string $className Class name
+ * @deprecated $this->$className use $this->$assoc instead. $assoc is the 'key' in the associations array;
+ * 	examples: var $hasMany = array('Assoc' => array('className' => 'ModelName'));
+ * 					usage: $this->Assoc->modelMethods();
+ *
+ * 				var $hasMany = array('ModelName');
+ * 					usage: $this->ModelName->modelMethods();
+ * @return void
+ * @access private
+ */
+	function __constructLinkedModel($assoc, $className = null) {
+		if (empty($className)) {
+			$className = $assoc;
+		}
+
+		if (!isset($this->{$assoc}) || $this->{$assoc}->name !== $className) {
+			$model = array('class' => $className, 'alias' => $assoc);
+			if (PHP5) {
+				$this->{$assoc} = ClassRegistry::init($model);
+			} else {
+				$this->{$assoc} =& ClassRegistry::init($model);
+			}
+			if (strpos($className, '.') !== false) {
+				ClassRegistry::addObject($className, $this->{$assoc});
+			}
+			if ($assoc) {
+				$this->tableToModel[$this->{$assoc}->table] = $assoc;
+			}
+		}
+	}
+
+/**
+ * Build an array-based association from string.
+ *
+ * @param string $type 'belongsTo', 'hasOne', 'hasMany', 'hasAndBelongsToMany'
+ * @return void
+ * @access private
+ */
+	function __generateAssociation($type) {
+		foreach ($this->{$type} as $assocKey => $assocData) {
+			$class = $assocKey;
+			$dynamicWith = false;
+
+			foreach ($this->__associationKeys[$type] as $key) {
+
+				if (!isset($this->{$type}[$assocKey][$key]) || $this->{$type}[$assocKey][$key] === null) {
+					$data = '';
+
+					switch ($key) {
+						case 'fields':
+							$data = '';
+						break;
+
+						case 'foreignKey':
+							$data = (($type == 'belongsTo') ? Inflector::underscore($assocKey) : Inflector::singularize($this->table)) . '_id';
+						break;
+
+						case 'associationForeignKey':
+							$data = Inflector::singularize($this->{$class}->table) . '_id';
+						break;
+
+						case 'with':
+							$data = Inflector::camelize(Inflector::singularize($this->{$type}[$assocKey]['joinTable']));
+							$dynamicWith = true;
+						break;
+
+						case 'joinTable':
+							$tables = array($this->table, $this->{$class}->table);
+							sort ($tables);
+							$data = $tables[0] . '_' . $tables[1];
+						break;
+
+						case 'className':
+							$data = $class;
+						break;
+
+						case 'unique':
+							$data = true;
+						break;
+					}
+					$this->{$type}[$assocKey][$key] = $data;
+				}
+			}
+
+			if (!empty($this->{$type}[$assocKey]['with'])) {
+				$joinClass = $this->{$type}[$assocKey]['with'];
+				if (is_array($joinClass)) {
+					$joinClass = key($joinClass);
+				}
+
+				$plugin = null;
+				if (strpos($joinClass, '.') !== false) {
+					list($plugin, $joinClass) = explode('.', $joinClass);
+					$plugin .= '.';
+					$this->{$type}[$assocKey]['with'] = $joinClass;
+				}
+
+				if (!ClassRegistry::isKeySet($joinClass) && $dynamicWith === true) {
+					$this->{$joinClass} = new AppModel(array(
+						'name' => $joinClass,
+						'table' => $this->{$type}[$assocKey]['joinTable'],
+						'ds' => $this->useDbConfig
+					));
+				} else {
+					$this->__constructLinkedModel($joinClass, $plugin . $joinClass);
+					$this->{$type}[$assocKey]['joinTable'] = $this->{$joinClass}->table;
+				}
+
+				if (count($this->{$joinClass}->schema()) <= 2 && $this->{$joinClass}->primaryKey !== false) {
+					$this->{$joinClass}->primaryKey = $this->{$type}[$assocKey]['foreignKey'];
+				}
+			}
+		}
+	}
+
+/**
+ * Sets a custom table for your controller class. Used by your controller to select a database table.
+ *
+ * @param string $tableName Name of the custom table
+ * @return void
+ * @access public
+ */
+	function setSource($tableName) {
+		$this->setDataSource($this->useDbConfig);
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		$db->cacheSources = ($this->cacheSources && $db->cacheSources);
+
+		if ($db->isInterfaceSupported('listSources')) {
+			$sources = $db->listSources();
+			if (is_array($sources) && !in_array(strtolower($this->tablePrefix . $tableName), array_map('strtolower', $sources))) {
+				return $this->cakeError('missingTable', array(array(
+					'className' => $this->alias,
+					'table' => $this->tablePrefix . $tableName,
+					'code' => 500
+				)));
+			}
+			$this->_schema = null;
+		}
+		$this->table = $this->useTable = $tableName;
+		$this->tableToModel[$this->table] = $this->alias;
+		$this->schema();
+	}
+
+/**
+ * This function does two things:
+ *
+ * 1. it scans the array $one for the primary key,
+ * and if that's found, it sets the current id to the value of $one[id].
+ * For all other keys than 'id' the keys and values of $one are copied to the 'data' property of this object.
+ * 2. Returns an array with all of $one's keys and values.
+ * (Alternative indata: two strings, which are mangled to
+ * a one-item, two-dimensional array using $one for a key and $two as its value.)
+ *
+ * @param mixed $one Array or string of data
+ * @param string $two Value string for the alternative indata method
+ * @return array Data with all of $one's keys and values
+ * @access public
+ * @link http://book.cakephp.org/view/1031/Saving-Your-Data
+ */
+	function set($one, $two = null) {
+		if (!$one) {
+			return;
+		}
+		if (is_object($one)) {
+			$one = Set::reverse($one);
+		}
+
+		if (is_array($one)) {
+			$data = $one;
+			if (empty($one[$this->alias])) {
+				if ($this->getAssociated(key($one)) === null) {
+					$data = array($this->alias => $one);
+				}
+			}
+		} else {
+			$data = array($this->alias => array($one => $two));
+		}
+
+		foreach ($data as $modelName => $fieldSet) {
+			if (is_array($fieldSet)) {
+
+				foreach ($fieldSet as $fieldName => $fieldValue) {
+					if (isset($this->validationErrors[$fieldName])) {
+						unset ($this->validationErrors[$fieldName]);
+					}
+
+					if ($modelName === $this->alias) {
+						if ($fieldName === $this->primaryKey) {
+							$this->id = $fieldValue;
+						}
+					}
+					if (is_array($fieldValue) || is_object($fieldValue)) {
+						$fieldValue = $this->deconstruct($fieldName, $fieldValue);
+					}
+					$this->data[$modelName][$fieldName] = $fieldValue;
+				}
+			}
+		}
+		return $data;
+	}
+
+/**
+ * Deconstructs a complex data type (array or object) into a single field value.
+ *
+ * @param string $field The name of the field to be deconstructed
+ * @param mixed $data An array or object to be deconstructed into a field
+ * @return mixed The resulting data that should be assigned to a field
+ * @access public
+ */
+	function deconstruct($field, $data) {
+		if (!is_array($data)) {
+			return $data;
+		}
+
+		$copy = $data;
+		$type = $this->getColumnType($field);
+
+		if (in_array($type, array('datetime', 'timestamp', 'date', 'time'))) {
+			$useNewDate = (isset($data['year']) || isset($data['month']) ||
+				isset($data['day']) || isset($data['hour']) || isset($data['minute']));
+
+			$dateFields = array('Y' => 'year', 'm' => 'month', 'd' => 'day', 'H' => 'hour', 'i' => 'min', 's' => 'sec');
+			$timeFields = array('H' => 'hour', 'i' => 'min', 's' => 'sec');
+
+			$db =& ConnectionManager::getDataSource($this->useDbConfig);
+			$format = $db->columns[$type]['format'];
+			$date = array();
+
+			if (isset($data['hour']) && isset($data['meridian']) && $data['hour'] != 12 && 'pm' == $data['meridian']) {
+				$data['hour'] = $data['hour'] + 12;
+			}
+			if (isset($data['hour']) && isset($data['meridian']) && $data['hour'] == 12 && 'am' == $data['meridian']) {
+				$data['hour'] = '00';
+			}
+			if ($type == 'time') {
+				foreach ($timeFields as $key => $val) {
+					if (!isset($data[$val]) || $data[$val] === '0' || $data[$val] === '00') {
+						$data[$val] = '00';
+					} elseif ($data[$val] === '') {
+						$data[$val] = '';
+					} else {
+						$data[$val] = sprintf('%02d', $data[$val]);
+					}
+					if (!empty($data[$val])) {
+						$date[$key] = $data[$val];
+					} else {
+						return null;
+					}
+				}
+			}
+
+			if ($type == 'datetime' || $type == 'timestamp' || $type == 'date') {
+				foreach ($dateFields as $key => $val) {
+					if ($val == 'hour' || $val == 'min' || $val == 'sec') {
+						if (!isset($data[$val]) || $data[$val] === '0' || $data[$val] === '00') {
+							$data[$val] = '00';
+						} else {
+							$data[$val] = sprintf('%02d', $data[$val]);
+						}
+					}
+					if (!isset($data[$val]) || isset($data[$val]) && (empty($data[$val]) || $data[$val][0] === '-')) {
+						return null;
+					}
+					if (isset($data[$val]) && !empty($data[$val])) {
+						$date[$key] = $data[$val];
+					}
+				}
+			}
+			$date = str_replace(array_keys($date), array_values($date), $format);
+			if ($useNewDate && !empty($date)) {
+				return $date;
+			}
+		}
+		return $data;
+	}
+
+/**
+ * Returns an array of table metadata (column names and types) from the database.
+ * $field => keys(type, null, default, key, length, extra)
+ *
+ * @param mixed $field Set to true to reload schema, or a string to return a specific field
+ * @return array Array of table metadata
+ * @access public
+ */
+	function schema($field = false) {
+		if (!is_array($this->_schema) || $field === true) {
+			$db =& ConnectionManager::getDataSource($this->useDbConfig);
+			$db->cacheSources = ($this->cacheSources && $db->cacheSources);
+			if ($db->isInterfaceSupported('describe') && $this->useTable !== false) {
+				$this->_schema = $db->describe($this, $field);
+			} elseif ($this->useTable === false) {
+				$this->_schema = array();
+			}
+		}
+		if (is_string($field)) {
+			if (isset($this->_schema[$field])) {
+				return $this->_schema[$field];
+			} else {
+				return null;
+			}
+		}
+		return $this->_schema;
+	}
+
+/**
+ * Returns an associative array of field names and column types.
+ *
+ * @return array Field types indexed by field name
+ * @access public
+ */
+	function getColumnTypes() {
+		$columns = $this->schema();
+		if (empty($columns)) {
+			trigger_error(__('(Model::getColumnTypes) Unable to build model field data. If you are using a model without a database table, try implementing schema()', true), E_USER_WARNING);
+		}
+		$cols = array();
+		foreach ($columns as $field => $values) {
+			$cols[$field] = $values['type'];
+		}
+		return $cols;
+	}
+
+/**
+ * Returns the column type of a column in the model.
+ *
+ * @param string $column The name of the model column
+ * @return string Column type
+ * @access public
+ */
+	function getColumnType($column) {
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		$cols = $this->schema();
+		$model = null;
+
+		$column = str_replace(array($db->startQuote, $db->endQuote), '', $column);
+
+		if (strpos($column, '.')) {
+			list($model, $column) = explode('.', $column);
+		}
+		if ($model != $this->alias && isset($this->{$model})) {
+			return $this->{$model}->getColumnType($column);
+		}
+		if (isset($cols[$column]) && isset($cols[$column]['type'])) {
+			return $cols[$column]['type'];
+		}
+		return null;
+	}
+
+/**
+ * Returns true if the supplied field exists in the model's database table.
+ *
+ * @param mixed $name Name of field to look for, or an array of names
+ * @param boolean $checkVirtual checks if the field is declared as virtual
+ * @return mixed If $name is a string, returns a boolean indicating whether the field exists.
+ *               If $name is an array of field names, returns the first field that exists,
+ *               or false if none exist.
+ * @access public
+ */
+	function hasField($name, $checkVirtual = false) {
+		if (is_array($name)) {
+			foreach ($name as $n) {
+				if ($this->hasField($n, $checkVirtual)) {
+					return $n;
+				}
+			}
+			return false;
+		}
+
+		if ($checkVirtual && !empty($this->virtualFields)) {
+			if ($this->isVirtualField($name)) {
+				return true;
+			}
+		}
+
+		if (empty($this->_schema)) {
+			$this->schema();
+		}
+
+		if ($this->_schema != null) {
+			return isset($this->_schema[$name]);
+		}
+		return false;
+	}
+
+/**
+ * Returns true if the supplied field is a model Virtual Field
+ *
+ * @param mixed $name Name of field to look for
+ * @return boolean indicating whether the field exists as a model virtual field.
+ * @access public
+ */
+	function isVirtualField($field) {
+		if (empty($this->virtualFields) || !is_string($field)) {
+			return false;
+		}
+		if (isset($this->virtualFields[$field])) {
+			return true;
+		}
+		if (strpos($field, '.') !== false) {
+			list($model, $field) = explode('.', $field);
+			if (isset($this->virtualFields[$field])) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+/**
+ * Returns the expression for a model virtual field
+ *
+ * @param mixed $name Name of field to look for
+ * @return mixed If $field is string expression bound to virtual field $field
+ *    If $field is null, returns an array of all model virtual fields
+ *    or false if none $field exist.
+ * @access public
+ */
+	function getVirtualField($field = null) {
+		if ($field == null) {
+			return empty($this->virtualFields) ? false : $this->virtualFields;
+		}
+		if ($this->isVirtualField($field)) {
+			if (strpos($field, '.') !== false) {
+				list($model, $field) = explode('.', $field);
+			}
+			return $this->virtualFields[$field];
+		}
+		return false;
+	}
+
+/**
+ * Initializes the model for writing a new record, loading the default values
+ * for those fields that are not defined in $data, and clearing previous validation errors.
+ * Especially helpful for saving data in loops.
+ *
+ * @param mixed $data Optional data array to assign to the model after it is created.  If null or false,
+ *   schema data defaults are not merged.
+ * @param boolean $filterKey If true, overwrites any primary key input with an empty value
+ * @return array The current Model::data; after merging $data and/or defaults from database
+ * @access public
+ * @link http://book.cakephp.org/view/1031/Saving-Your-Data
+ */
+	function create($data = array(), $filterKey = false) {
+		$defaults = array();
+		$this->id = false;
+		$this->data = array();
+		$this->validationErrors = array();
+
+		if ($data !== null && $data !== false) {
+			foreach ($this->schema() as $field => $properties) {
+				if ($this->primaryKey !== $field && isset($properties['default']) && $properties['default'] !== '') {
+					$defaults[$field] = $properties['default'];
+				}
+			}
+			$this->set($defaults);
+			$this->set($data);
+		}
+		if ($filterKey) {
+			$this->set($this->primaryKey, false);
+		}
+		return $this->data;
+	}
+
+/**
+ * Returns a list of fields from the database, and sets the current model
+ * data (Model::$data) with the record found.
+ *
+ * @param mixed $fields String of single fieldname, or an array of fieldnames.
+ * @param mixed $id The ID of the record to read
+ * @return array Array of database fields, or false if not found
+ * @access public
+ * @link http://book.cakephp.org/view/1017/Retrieving-Your-Data#read-1029
+ */
+	function read($fields = null, $id = null) {
+		$this->validationErrors = array();
+
+		if ($id != null) {
+			$this->id = $id;
+		}
+
+		$id = $this->id;
+
+		if (is_array($this->id)) {
+			$id = $this->id[0];
+		}
+
+		if ($id !== null && $id !== false) {
+			$this->data = $this->find('first', array(
+				'conditions' => array($this->alias . '.' . $this->primaryKey => $id),
+				'fields' => $fields
+			));
+			return $this->data;
+		} else {
+			return false;
+		}
+	}
+
+/**
+ * Returns the contents of a single field given the supplied conditions, in the
+ * supplied order.
+ *
+ * @param string $name Name of field to get
+ * @param array $conditions SQL conditions (defaults to NULL)
+ * @param string $order SQL ORDER BY fragment
+ * @return string field contents, or false if not found
+ * @access public
+ * @link http://book.cakephp.org/view/1017/Retrieving-Your-Data#field-1028
+ */
+	function field($name, $conditions = null, $order = null) {
+		if ($conditions === null && $this->id !== false) {
+			$conditions = array($this->alias . '.' . $this->primaryKey => $this->id);
+		}
+		if ($this->recursive >= 1) {
+			$recursive = -1;
+		} else {
+			$recursive = $this->recursive;
+		}
+		$fields = $name;
+		if ($data = $this->find('first', compact('conditions', 'fields', 'order', 'recursive'))) {
+			if (strpos($name, '.') === false) {
+				if (isset($data[$this->alias][$name])) {
+					return $data[$this->alias][$name];
+				}
+			} else {
+				$name = explode('.', $name);
+				if (isset($data[$name[0]][$name[1]])) {
+					return $data[$name[0]][$name[1]];
+				}
+			}
+			if (isset($data[0]) && count($data[0]) > 0) {
+				return array_shift($data[0]);
+			}
+		} else {
+			return false;
+		}
+	}
+
+/**
+ * Saves the value of a single field to the database, based on the current
+ * model ID.
+ *
+ * @param string $name Name of the table field
+ * @param mixed $value Value of the field
+ * @param array $validate See $options param in Model::save(). Does not respect 'fieldList' key if passed
+ * @return boolean See Model::save()
+ * @access public
+ * @see Model::save()
+ * @link http://book.cakephp.org/view/1031/Saving-Your-Data
+ */
+	function saveField($name, $value, $validate = false) {
+		$id = $this->id;
+		$this->create(false);
+
+		if (is_array($validate)) {
+			$options = array_merge(array('validate' => false, 'fieldList' => array($name)), $validate);
+		} else {
+			$options = array('validate' => $validate, 'fieldList' => array($name));
+		}
+		return $this->save(array($this->alias => array($this->primaryKey => $id, $name => $value)), $options);
+	}
+
+/**
+ * Saves model data (based on white-list, if supplied) to the database. By
+ * default, validation occurs before save.
+ *
+ * @param array $data Data to save.
+ * @param mixed $validate Either a boolean, or an array.
+ *   If a boolean, indicates whether or not to validate before saving.
+ *   If an array, allows control of validate, callbacks, and fieldList
+ * @param array $fieldList List of fields to allow to be written
+ * @return mixed On success Model::$data if its not empty or true, false on failure
+ * @access public
+ * @link http://book.cakephp.org/view/1031/Saving-Your-Data
+ */
+	function save($data = null, $validate = true, $fieldList = array()) {
+		$defaults = array('validate' => true, 'fieldList' => array(), 'callbacks' => true);
+		$_whitelist = $this->whitelist;
+		$fields = array();
+
+		if (!is_array($validate)) {
+			$options = array_merge($defaults, compact('validate', 'fieldList', 'callbacks'));
+		} else {
+			$options = array_merge($defaults, $validate);
+		}
+
+		if (!empty($options['fieldList'])) {
+			$this->whitelist = $options['fieldList'];
+		} elseif ($options['fieldList'] === null) {
+			$this->whitelist = array();
+		}
+		$this->set($data);
+
+		if (empty($this->data) && !$this->hasField(array('created', 'updated', 'modified'))) {
+			return false;
+		}
+
+		foreach (array('created', 'updated', 'modified') as $field) {
+			$keyPresentAndEmpty = (
+				isset($this->data[$this->alias]) &&
+				array_key_exists($field, $this->data[$this->alias]) &&
+				$this->data[$this->alias][$field] === null
+			);
+			if ($keyPresentAndEmpty) {
+				unset($this->data[$this->alias][$field]);
+			}
+		}
+
+		$exists = $this->exists();
+		$dateFields = array('modified', 'updated');
+
+		if (!$exists) {
+			$dateFields[] = 'created';
+		}
+		if (isset($this->data[$this->alias])) {
+			$fields = array_keys($this->data[$this->alias]);
+		}
+		if ($options['validate'] && !$this->validates($options)) {
+			$this->whitelist = $_whitelist;
+			return false;
+		}
+
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+
+		foreach ($dateFields as $updateCol) {
+			if ($this->hasField($updateCol) && !in_array($updateCol, $fields)) {
+				$default = array('formatter' => 'date');
+				$colType = array_merge($default, $db->columns[$this->getColumnType($updateCol)]);
+				if (!array_key_exists('format', $colType)) {
+					$time = strtotime('now');
+				} else {
+					$time = $colType['formatter']($colType['format']);
+				}
+				if (!empty($this->whitelist)) {
+					$this->whitelist[] = $updateCol;
+				}
+				$this->set($updateCol, $time);
+			}
+		}
+
+		if ($options['callbacks'] === true || $options['callbacks'] === 'before') {
+			$result = $this->Behaviors->trigger($this, 'beforeSave', array($options), array(
+				'break' => true, 'breakOn' => false
+			));
+			if (!$result || !$this->beforeSave($options)) {
+				$this->whitelist = $_whitelist;
+				return false;
+			}
+		}
+
+		if (empty($this->data[$this->alias][$this->primaryKey])) {
+			unset($this->data[$this->alias][$this->primaryKey]);
+		}
+		$fields = $values = array();
+
+		foreach ($this->data as $n => $v) {
+			if (isset($this->hasAndBelongsToMany[$n])) {
+				if (isset($v[$n])) {
+					$v = $v[$n];
+				}
+				$joined[$n] = $v;
+			} else {
+				if ($n === $this->alias) {
+					foreach (array('created', 'updated', 'modified') as $field) {
+						if (array_key_exists($field, $v) && empty($v[$field])) {
+							unset($v[$field]);
+						}
+					}
+
+					foreach ($v as $x => $y) {
+						if ($this->hasField($x) && (empty($this->whitelist) || in_array($x, $this->whitelist))) {
+							list($fields[], $values[]) = array($x, $y);
+						}
+					}
+				}
+			}
+		}
+		$count = count($fields);
+
+		if (!$exists && $count > 0) {
+			$this->id = false;
+		}
+		$success = true;
+		$created = false;
+
+		if ($count > 0) {
+			$cache = $this->_prepareUpdateFields(array_combine($fields, $values));
+
+			if (!empty($this->id)) {
+				$success = (bool)$db->update($this, $fields, $values);
+			} else {
+				$fInfo = $this->_schema[$this->primaryKey];
+				$isUUID = ($fInfo['length'] == 36 &&
+					($fInfo['type'] === 'string' || $fInfo['type'] === 'binary')
+				);
+				if (empty($this->data[$this->alias][$this->primaryKey]) && $isUUID) {
+					if (array_key_exists($this->primaryKey, $this->data[$this->alias])) {
+						$j = array_search($this->primaryKey, $fields);
+						$values[$j] = String::uuid();
+					} else {
+						list($fields[], $values[]) = array($this->primaryKey, String::uuid());
+					}
+				}
+
+				if (!$db->create($this, $fields, $values)) {
+					$success = $created = false;
+				} else {
+					$created = true;
+				}
+			}
+
+			if ($success && !empty($this->belongsTo)) {
+				$this->updateCounterCache($cache, $created);
+			}
+		}
+
+		if (!empty($joined) && $success === true) {
+			$this->__saveMulti($joined, $this->id, $db);
+		}
+
+		if ($success && $count > 0) {
+			if (!empty($this->data)) {
+				$success = $this->data;
+			}
+			if ($options['callbacks'] === true || $options['callbacks'] === 'after') {
+				$this->Behaviors->trigger($this, 'afterSave', array($created, $options));
+				$this->afterSave($created);
+			}
+			if (!empty($this->data)) {
+				$success = Set::merge($success, $this->data);
+			}
+			$this->data = false;
+			$this->_clearCache();
+			$this->validationErrors = array();
+		}
+		$this->whitelist = $_whitelist;
+		return $success;
+	}
+
+/**
+ * Saves model hasAndBelongsToMany data to the database.
+ *
+ * @param array $joined Data to save
+ * @param mixed $id ID of record in this model
+ * @access private
+ */
+	function __saveMulti($joined, $id, &$db) {
+		foreach ($joined as $assoc => $data) {
+
+			if (isset($this->hasAndBelongsToMany[$assoc])) {
+				list($join) = $this->joinModel($this->hasAndBelongsToMany[$assoc]['with']);
+
+				$isUUID = !empty($this->{$join}->primaryKey) && (
+						$this->{$join}->_schema[$this->{$join}->primaryKey]['length'] == 36 && (
+						$this->{$join}->_schema[$this->{$join}->primaryKey]['type'] === 'string' ||
+						$this->{$join}->_schema[$this->{$join}->primaryKey]['type'] === 'binary'
+					)
+				);
+
+				$newData = $newValues = array();
+				$primaryAdded = false;
+
+				$fields =  array(
+					$db->name($this->hasAndBelongsToMany[$assoc]['foreignKey']),
+					$db->name($this->hasAndBelongsToMany[$assoc]['associationForeignKey'])
+				);
+
+				$idField = $db->name($this->{$join}->primaryKey);
+				if ($isUUID && !in_array($idField, $fields)) {
+					$fields[] = $idField;
+					$primaryAdded = true;
+				}
+
+				foreach ((array)$data as $row) {
+					if ((is_string($row) && (strlen($row) == 36 || strlen($row) == 16)) || is_numeric($row)) {
+						$values = array(
+							$db->value($id, $this->getColumnType($this->primaryKey)),
+							$db->value($row)
+						);
+						if ($isUUID && $primaryAdded) {
+							$values[] = $db->value(String::uuid());
+						}
+						$values = implode(',', $values);
+						$newValues[] = "({$values})";
+						unset($values);
+					} elseif (isset($row[$this->hasAndBelongsToMany[$assoc]['associationForeignKey']])) {
+						$newData[] = $row;
+					} elseif (isset($row[$join]) && isset($row[$join][$this->hasAndBelongsToMany[$assoc]['associationForeignKey']])) {
+						$newData[] = $row[$join];
+					}
+				}
+
+				if ($this->hasAndBelongsToMany[$assoc]['unique']) {
+					$conditions = array(
+						$join . '.' . $this->hasAndBelongsToMany[$assoc]['foreignKey'] => $id
+					);
+					if (!empty($this->hasAndBelongsToMany[$assoc]['conditions'])) {
+						$conditions = array_merge($conditions, (array)$this->hasAndBelongsToMany[$assoc]['conditions']);
+					}
+					$links = $this->{$join}->find('all', array(
+						'conditions' => $conditions,
+						'recursive' => empty($this->hasAndBelongsToMany[$assoc]['conditions']) ? -1 : 0,
+						'fields' => $this->hasAndBelongsToMany[$assoc]['associationForeignKey']
+					));
+
+					$associationForeignKey = "{$join}." . $this->hasAndBelongsToMany[$assoc]['associationForeignKey'];
+					$oldLinks = Set::extract($links, "{n}.{$associationForeignKey}");
+					if (!empty($oldLinks)) {
+ 						$conditions[$associationForeignKey] = $oldLinks;
+						$db->delete($this->{$join}, $conditions);
+					}
+				}
+
+				if (!empty($newData)) {
+					foreach ($newData as $data) {
+						$data[$this->hasAndBelongsToMany[$assoc]['foreignKey']] = $id;
+						$this->{$join}->create($data);
+						$this->{$join}->save();
+					}
+				}
+
+				if (!empty($newValues)) {
+					$fields = implode(',', $fields);
+					$db->insertMulti($this->{$join}, $fields, $newValues);
+				}
+			}
+		}
+	}
+
+/**
+ * Updates the counter cache of belongsTo associations after a save or delete operation
+ *
+ * @param array $keys Optional foreign key data, defaults to the information $this->data
+ * @param boolean $created True if a new record was created, otherwise only associations with
+ *   'counterScope' defined get updated
+ * @return void
+ * @access public
+ */
+	function updateCounterCache($keys = array(), $created = false) {
+		$keys = empty($keys) ? $this->data[$this->alias] : $keys;
+		$keys['old'] = isset($keys['old']) ? $keys['old'] : array();
+
+		foreach ($this->belongsTo as $parent => $assoc) {
+			$foreignKey = $assoc['foreignKey'];
+			$fkQuoted = $this->escapeField($assoc['foreignKey']);
+
+			if (!empty($assoc['counterCache'])) {
+				if ($assoc['counterCache'] === true) {
+					$assoc['counterCache'] = Inflector::underscore($this->alias) . '_count';
+				}
+				if (!$this->{$parent}->hasField($assoc['counterCache'])) {
+					continue;
+				}
+
+				if (!array_key_exists($foreignKey, $keys)) {
+					$keys[$foreignKey] = $this->field($foreignKey);
+				}
+				$recursive = (isset($assoc['counterScope']) ? 1 : -1);
+				$conditions = ($recursive == 1) ? (array)$assoc['counterScope'] : array();
+
+				if (isset($keys['old'][$foreignKey])) {
+					if ($keys['old'][$foreignKey] != $keys[$foreignKey]) {
+						$conditions[$fkQuoted] = $keys['old'][$foreignKey];
+						$count = intval($this->find('count', compact('conditions', 'recursive')));
+
+						$this->{$parent}->updateAll(
+							array($assoc['counterCache'] => $count),
+							array($this->{$parent}->escapeField() => $keys['old'][$foreignKey])
+						);
+					}
+				}
+				$conditions[$fkQuoted] = $keys[$foreignKey];
+
+				if ($recursive == 1) {
+					$conditions = array_merge($conditions, (array)$assoc['counterScope']);
+				}
+				$count = intval($this->find('count', compact('conditions', 'recursive')));
+
+				$this->{$parent}->updateAll(
+					array($assoc['counterCache'] => $count),
+					array($this->{$parent}->escapeField() => $keys[$foreignKey])
+				);
+			}
+		}
+	}
+
+/**
+ * Helper method for Model::updateCounterCache().  Checks the fields to be updated for
+ *
+ * @param array $data The fields of the record that will be updated
+ * @return array Returns updated foreign key values, along with an 'old' key containing the old
+ *     values, or empty if no foreign keys are updated.
+ * @access protected
+ */
+	function _prepareUpdateFields($data) {
+		$foreignKeys = array();
+		foreach ($this->belongsTo as $assoc => $info) {
+			if ($info['counterCache']) {
+				$foreignKeys[$assoc] = $info['foreignKey'];
+			}
+		}
+		$included = array_intersect($foreignKeys, array_keys($data));
+
+		if (empty($included) || empty($this->id)) {
+			return array();
+		}
+		$old = $this->find('first', array(
+			'conditions' => array($this->primaryKey => $this->id),
+			'fields' => array_values($included),
+			'recursive' => -1
+		));
+		return array_merge($data, array('old' => $old[$this->alias]));
+	}
+
+/**
+ * Saves multiple individual records for a single model; Also works with a single record, as well as
+ * all its associated records.
+ *
+ * #### Options
+ *
+ * - validate: Set to false to disable validation, true to validate each record before saving,
+ *   'first' to validate *all* records before any are saved (default),
+ *   or 'only' to only validate the records, but not save them.
+ * - atomic: If true (default), will attempt to save all records in a single transaction.
+ *   Should be set to false if database/table does not support transactions.
+ * - fieldList: Equivalent to the $fieldList parameter in Model::save()
+ *
+ * @param array $data Record data to save.  This can be either a numerically-indexed array (for saving multiple
+ *     records of the same type), or an array indexed by association name.
+ * @param array $options Options to use when saving record data, See $options above.
+ * @return mixed If atomic: True on success, or false on failure.
+ *    Otherwise: array similar to the $data array passed, but values are set to true/false
+ *    depending on whether each record saved successfully.
+ * @access public
+ * @link http://book.cakephp.org/view/1032/Saving-Related-Model-Data-hasOne-hasMany-belongsTo
+ * @link http://book.cakephp.org/view/1031/Saving-Your-Data
+ */
+	function saveAll($data = null, $options = array()) {
+		if (empty($data)) {
+			$data = $this->data;
+		}
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+
+		$options = array_merge(array('validate' => 'first', 'atomic' => true), $options);
+		$this->validationErrors = $validationErrors = array();
+		$validates = true;
+		$return = array();
+
+		if (empty($data) && $options['validate'] !== false) {
+			$result = $this->save($data, $options);
+			return !empty($result);
+		}
+
+		if ($options['atomic'] && $options['validate'] !== 'only') {
+			$transactionBegun = $db->begin($this);
+		}
+
+		if (Set::numeric(array_keys($data))) {
+			while ($validates) {
+				$return = array();
+				foreach ($data as $key => $record) {
+					if (!$currentValidates = $this->__save($record, $options)) {
+						$validationErrors[$key] = $this->validationErrors;
+					}
+
+					if ($options['validate'] === 'only' || $options['validate'] === 'first') {
+						$validating = true;
+						if ($options['atomic']) {
+							$validates = $validates && $currentValidates;
+						} else {
+							$validates = $currentValidates;
+						}
+					} else {
+						$validating = false;
+						$validates = $currentValidates;
+					}
+
+					if (!$options['atomic']) {
+						$return[] = $validates;
+					} elseif (!$validates && !$validating) {
+						break;
+					}
+				}
+				$this->validationErrors = $validationErrors;
+
+				switch (true) {
+					case ($options['validate'] === 'only'):
+						return ($options['atomic'] ? $validates : $return);
+					break;
+					case ($options['validate'] === 'first'):
+						$options['validate'] = true;
+					break;
+					default:
+						if ($options['atomic']) {
+							if ($validates) {
+								if ($transactionBegun) {
+									return $db->commit($this) !== false;
+								} else {
+									return true;
+								}
+							}
+							$db->rollback($this);
+							return false;
+						}
+						return $return;
+					break;
+				}
+			}
+			if ($options['atomic'] && !$validates) {
+				$db->rollback($this);
+				return false;
+			}
+			return $return;
+		}
+		$associations = $this->getAssociated();
+
+		while ($validates) {
+			foreach ($data as $association => $values) {
+				if (isset($associations[$association])) {
+					switch ($associations[$association]) {
+						case 'belongsTo':
+							if ($this->{$association}->__save($values, $options)) {
+								$data[$this->alias][$this->belongsTo[$association]['foreignKey']] = $this->{$association}->id;
+							} else {
+								$validationErrors[$association] = $this->{$association}->validationErrors;
+								$validates = false;
+							}
+							if (!$options['atomic']) {
+								$return[$association][] = $validates;
+							}
+						break;
+					}
+				}
+			}
+
+			if (!$this->__save($data, $options)) {
+				$validationErrors[$this->alias] = $this->validationErrors;
+				$validates = false;
+			}
+			if (!$options['atomic']) {
+				$return[$this->alias] = $validates;
+			}
+			$validating = ($options['validate'] === 'only' || $options['validate'] === 'first');
+
+			foreach ($data as $association => $values) {
+				if (!$validates && !$validating) {
+					break;
+				}
+				if (isset($associations[$association])) {
+					$type = $associations[$association];
+					switch ($type) {
+						case 'hasOne':
+							$values[$this->{$type}[$association]['foreignKey']] = $this->id;
+							if (!$this->{$association}->__save($values, $options)) {
+								$validationErrors[$association] = $this->{$association}->validationErrors;
+								$validates = false;
+							}
+							if (!$options['atomic']) {
+								$return[$association][] = $validates;
+							}
+						break;
+						case 'hasMany':
+							foreach ($values as $i => $value) {
+								$values[$i][$this->{$type}[$association]['foreignKey']] =  $this->id;
+							}
+							$_options = array_merge($options, array('atomic' => false));
+
+							if ($_options['validate'] === 'first') {
+								$_options['validate'] = 'only';
+							}
+							$_return = $this->{$association}->saveAll($values, $_options);
+
+							if ($_return === false || (is_array($_return) && in_array(false, $_return, true))) {
+								$validationErrors[$association] = $this->{$association}->validationErrors;
+								$validates = false;
+							}
+							if (is_array($_return)) {
+								foreach ($_return as $val) {
+									if (!isset($return[$association])) {
+										$return[$association] = array();
+									} elseif (!is_array($return[$association])) {
+										$return[$association] = array($return[$association]);
+									}
+									$return[$association][] = $val;
+								}
+							} else {
+								$return[$association] = $_return;
+							}
+						break;
+					}
+				}
+			}
+			$this->validationErrors = $validationErrors;
+
+			if (isset($validationErrors[$this->alias])) {
+				$this->validationErrors = $validationErrors[$this->alias];
+			}
+
+			switch (true) {
+				case ($options['validate'] === 'only'):
+					return ($options['atomic'] ? $validates : $return);
+				break;
+				case ($options['validate'] === 'first'):
+					$options['validate'] = true;
+					$return = array();
+				break;
+				default:
+					if ($options['atomic']) {
+						if ($validates) {
+							if ($transactionBegun) {
+								return $db->commit($this) !== false;
+							} else {
+								return true;
+							}
+						} else {
+							$db->rollback($this);
+						}
+					}
+					return $return;
+				break;
+			}
+			if ($options['atomic'] && !$validates) {
+				$db->rollback($this);
+				return false;
+			}
+		}
+	}
+
+/**
+ * Private helper method used by saveAll.
+ *
+ * @return boolean Success
+ * @access private
+ * @see Model::saveAll()
+ */
+	function __save($data, $options) {
+		if ($options['validate'] === 'first' || $options['validate'] === 'only') {
+			if (!($this->create($data) && $this->validates($options))) {
+				return false;
+			}
+		} elseif (!($this->create(null) !== null && $this->save($data, $options))) {
+			return false;
+		}
+		return true;
+	}
+
+/**
+ * Updates multiple model records based on a set of conditions.
+ *
+ * @param array $fields Set of fields and values, indexed by fields.
+ *    Fields are treated as SQL snippets, to insert literal values manually escape your data.
+ * @param mixed $conditions Conditions to match, true for all records
+ * @return boolean True on success, false on failure
+ * @access public
+ * @link http://book.cakephp.org/view/1031/Saving-Your-Data
+ */
+	function updateAll($fields, $conditions = true) {
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		return $db->update($this, $fields, null, $conditions);
+	}
+
+/**
+ * Removes record for given ID. If no ID is given, the current ID is used. Returns true on success.
+ *
+ * @param mixed $id ID of record to delete
+ * @param boolean $cascade Set to true to delete records that depend on this record
+ * @return boolean True on success
+ * @access public
+ * @link http://book.cakephp.org/view/1036/delete
+ */
+	function delete($id = null, $cascade = true) {
+		if (!empty($id)) {
+			$this->id = $id;
+		}
+		$id = $this->id;
+
+		if ($this->beforeDelete($cascade)) {
+			$filters = $this->Behaviors->trigger($this, 'beforeDelete', array($cascade), array(
+				'break' => true, 'breakOn' => false
+			));
+			if (!$filters || !$this->exists()) {
+				return false;
+			}
+			$db =& ConnectionManager::getDataSource($this->useDbConfig);
+
+			$this->_deleteDependent($id, $cascade);
+			$this->_deleteLinks($id);
+			$this->id = $id;
+
+			if (!empty($this->belongsTo)) {
+				$keys = $this->find('first', array(
+					'fields' => $this->__collectForeignKeys(),
+					'conditions' => array($this->alias . '.' . $this->primaryKey => $id)
+				));
+			}
+
+			if ($db->delete($this, array($this->alias . '.' . $this->primaryKey => $id))) {
+				if (!empty($this->belongsTo)) {
+					$this->updateCounterCache($keys[$this->alias]);
+				}
+				$this->Behaviors->trigger($this, 'afterDelete');
+				$this->afterDelete();
+				$this->_clearCache();
+				$this->id = false;
+				return true;
+			}
+		}
+		return false;
+	}
+
+/**
+ * Cascades model deletes through associated hasMany and hasOne child records.
+ *
+ * @param string $id ID of record that was deleted
+ * @param boolean $cascade Set to true to delete records that depend on this record
+ * @return void
+ * @access protected
+ */
+	function _deleteDependent($id, $cascade) {
+		if (!empty($this->__backAssociation)) {
+			$savedAssociatons = $this->__backAssociation;
+			$this->__backAssociation = array();
+		}
+		foreach (array_merge($this->hasMany, $this->hasOne) as $assoc => $data) {
+			if ($data['dependent'] === true && $cascade === true) {
+
+				$model =& $this->{$assoc};
+				$conditions = array($model->escapeField($data['foreignKey']) => $id);
+				if ($data['conditions']) {
+					$conditions = array_merge((array)$data['conditions'], $conditions);
+				}
+				$model->recursive = -1;
+
+				if (isset($data['exclusive']) && $data['exclusive']) {
+					$model->deleteAll($conditions);
+				} else {
+					$records = $model->find('all', array(
+						'conditions' => $conditions, 'fields' => $model->primaryKey
+					));
+
+					if (!empty($records)) {
+						foreach ($records as $record) {
+							$model->delete($record[$model->alias][$model->primaryKey]);
+						}
+					}
+				}
+			}
+		}
+		if (isset($savedAssociatons)) {
+			$this->__backAssociation = $savedAssociatons;
+		}
+	}
+
+/**
+ * Cascades model deletes through HABTM join keys.
+ *
+ * @param string $id ID of record that was deleted
+ * @return void
+ * @access protected
+ */
+	function _deleteLinks($id) {
+		foreach ($this->hasAndBelongsToMany as $assoc => $data) {
+			$joinModel = $data['with'];
+			$records = $this->{$joinModel}->find('all', array(
+				'conditions' => array_merge(array($this->{$joinModel}->escapeField($data['foreignKey']) => $id)),
+				'fields' => $this->{$joinModel}->primaryKey,
+				'recursive' => -1
+			));
+			if (!empty($records)) {
+				foreach ($records as $record) {
+					$this->{$joinModel}->delete($record[$this->{$joinModel}->alias][$this->{$joinModel}->primaryKey]);
+				}
+			}
+		}
+	}
+
+/**
+ * Deletes multiple model records based on a set of conditions.
+ *
+ * @param mixed $conditions Conditions to match
+ * @param boolean $cascade Set to true to delete records that depend on this record
+ * @param boolean $callbacks Run callbacks
+ * @return boolean True on success, false on failure
+ * @access public
+ * @link http://book.cakephp.org/view/1038/deleteAll
+ */
+	function deleteAll($conditions, $cascade = true, $callbacks = false) {
+		if (empty($conditions)) {
+			return false;
+		}
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+
+		if (!$cascade && !$callbacks) {
+			return $db->delete($this, $conditions);
+		} else {
+			$ids = $this->find('all', array_merge(array(
+				'fields' => "{$this->alias}.{$this->primaryKey}",
+				'recursive' => 0), compact('conditions'))
+			);
+			if ($ids === false) {
+				return false;
+			}
+
+			$ids = Set::extract($ids, "{n}.{$this->alias}.{$this->primaryKey}");
+			if (empty($ids)) {
+				return true;
+			}
+
+			if ($callbacks) {
+				$_id = $this->id;
+				$result = true;
+				foreach ($ids as $id) {
+					$result = ($result && $this->delete($id, $cascade));
+				}
+				$this->id = $_id;
+				return $result;
+			} else {
+				foreach ($ids as $id) {
+					$this->_deleteLinks($id);
+					if ($cascade) {
+						$this->_deleteDependent($id, $cascade);
+					}
+				}
+				return $db->delete($this, array($this->alias . '.' . $this->primaryKey => $ids));
+			}
+		}
+	}
+
+/**
+ * Collects foreign keys from associations.
+ *
+ * @return array
+ * @access private
+ */
+	function __collectForeignKeys($type = 'belongsTo') {
+		$result = array();
+
+		foreach ($this->{$type} as $assoc => $data) {
+			if (isset($data['foreignKey']) && is_string($data['foreignKey'])) {
+				$result[$assoc] = $data['foreignKey'];
+			}
+		}
+		return $result;
+	}
+
+/**
+ * Returns true if a record with the currently set ID exists.
+ *
+ * Internally calls Model::getID() to obtain the current record ID to verify,
+ * and then performs a Model::find('count') on the currently configured datasource
+ * to ascertain the existence of the record in persistent storage.
+ *
+ * @return boolean True if such a record exists
+ * @access public
+ */
+	function exists() {
+		if ($this->getID() === false) {
+			return false;
+		}
+		$conditions = array($this->alias . '.' . $this->primaryKey => $this->getID());
+		$query = array('conditions' => $conditions, 'recursive' => -1, 'callbacks' => false);
+		return ($this->find('count', $query) > 0);
+	}
+
+/**
+ * Returns true if a record that meets given conditions exists.
+ *
+ * @param array $conditions SQL conditions array
+ * @return boolean True if such a record exists
+ * @access public
+ */
+	function hasAny($conditions = null) {
+		return ($this->find('count', array('conditions' => $conditions, 'recursive' => -1)) != false);
+	}
+
+/**
+ * Queries the datasource and returns a result set array.
+ *
+ * Also used to perform new-notation finds, where the first argument is type of find operation to perform
+ * (all / first / count / neighbors / list / threaded ),
+ * second parameter options for finding ( indexed array, including: 'conditions', 'limit',
+ * 'recursive', 'page', 'fields', 'offset', 'order')
+ *
+ * Eg:
+ * {{{
+ * 	find('all', array(
+ * 		'conditions' => array('name' => 'Thomas Anderson'),
+ * 		'fields' => array('name', 'email'),
+ * 		'order' => 'field3 DESC',
+ * 		'recursive' => 2,
+ * 		'group' => 'type'
+ * ));
+ * }}}
+ *
+ * In addition to the standard query keys above, you can provide Datasource, and behavior specific
+ * keys.  For example, when using a SQL based datasource you can use the joins key to specify additional
+ * joins that should be part of the query.
+ *
+ * {{{
+ * find('all', array(
+ * 		'conditions' => array('name' => 'Thomas Anderson'),
+ * 		'joins' => array(
+ *			array(
+ * 				'alias' => 'Thought',
+ * 				'table' => 'thoughts',
+ * 				'type' => 'LEFT',
+ * 				'conditions' => '`Thought`.`person_id` = `Person`.`id`'
+ *			)
+ * 		)
+ * ));
+ * }}}
+ *
+ * Behaviors and find types can also define custom finder keys which are passed into find().
+ *
+ * Specifying 'fields' for new-notation 'list':
+ *
+ *  - If no fields are specified, then 'id' is used for key and 'model->displayField' is used for value.
+ *  - If a single field is specified, 'id' is used for key and specified field is used for value.
+ *  - If three fields are specified, they are used (in order) for key, value and group.
+ *  - Otherwise, first and second fields are used for key and value.
+ *
+ * @param array $conditions SQL conditions array, or type of find operation (all / first / count /
+ *    neighbors / list / threaded)
+ * @param mixed $fields Either a single string of a field name, or an array of field names, or
+ *    options for matching
+ * @param string $order SQL ORDER BY conditions (e.g. "price DESC" or "name ASC")
+ * @param integer $recursive The number of levels deep to fetch associated records
+ * @return array Array of records
+ * @access public
+ * @link http://book.cakephp.org/view/1018/find
+ */
+	function find($conditions = null, $fields = array(), $order = null, $recursive = null) {
+		if (!is_string($conditions) || (is_string($conditions) && !array_key_exists($conditions, $this->_findMethods))) {
+			$type = 'first';
+			$query = array_merge(compact('conditions', 'fields', 'order', 'recursive'), array('limit' => 1));
+		} else {
+			list($type, $query) = array($conditions, $fields);
+		}
+
+		$this->findQueryType = $type;
+		$this->id = $this->getID();
+
+		$query = array_merge(
+			array(
+				'conditions' => null, 'fields' => null, 'joins' => array(), 'limit' => null,
+				'offset' => null, 'order' => null, 'page' => null, 'group' => null, 'callbacks' => true
+			),
+			(array)$query
+		);
+
+		if ($type != 'all') {
+			if ($this->_findMethods[$type] === true) {
+				$query = $this->{'_find' . ucfirst($type)}('before', $query);
+			}
+		}
+
+		if (!is_numeric($query['page']) || intval($query['page']) < 1) {
+			$query['page'] = 1;
+		}
+		if ($query['page'] > 1 && !empty($query['limit'])) {
+			$query['offset'] = ($query['page'] - 1) * $query['limit'];
+		}
+		if ($query['order'] === null && $this->order !== null) {
+			$query['order'] = $this->order;
+		}
+		$query['order'] = array($query['order']);
+
+		if ($query['callbacks'] === true || $query['callbacks'] === 'before') {
+			$return = $this->Behaviors->trigger($this, 'beforeFind', array($query), array(
+				'break' => true, 'breakOn' => false, 'modParams' => true
+			));
+			$query = (is_array($return)) ? $return : $query;
+
+			if ($return === false) {
+				return null;
+			}
+
+			$return = $this->beforeFind($query);
+			$query = (is_array($return)) ? $return : $query;
+
+			if ($return === false) {
+				return null;
+			}
+		}
+
+		if (!$db =& ConnectionManager::getDataSource($this->useDbConfig)) {
+			return false;
+		}
+
+		$results = $db->read($this, $query);
+		$this->resetAssociations();
+
+		if ($query['callbacks'] === true || $query['callbacks'] === 'after') {
+			$results = $this->__filterResults($results);
+		}
+
+		$this->findQueryType = null;
+
+		if ($type === 'all') {
+			return $results;
+		} else {
+			if ($this->_findMethods[$type] === true) {
+				return $this->{'_find' . ucfirst($type)}('after', $query, $results);
+			}
+		}
+	}
+
+/**
+ * Handles the before/after filter logic for find('first') operations.  Only called by Model::find().
+ *
+ * @param string $state Either "before" or "after"
+ * @param array $query
+ * @param array $data
+ * @return array
+ * @access protected
+ * @see Model::find()
+ */
+	function _findFirst($state, $query, $results = array()) {
+		if ($state == 'before') {
+			$query['limit'] = 1;
+			return $query;
+		} elseif ($state == 'after') {
+			if (empty($results[0])) {
+				return false;
+			}
+			return $results[0];
+		}
+	}
+
+/**
+ * Handles the before/after filter logic for find('count') operations.  Only called by Model::find().
+ *
+ * @param string $state Either "before" or "after"
+ * @param array $query
+ * @param array $data
+ * @return int The number of records found, or false
+ * @access protected
+ * @see Model::find()
+ */
+	function _findCount($state, $query, $results = array()) {
+		if ($state == 'before') {
+			$db =& ConnectionManager::getDataSource($this->useDbConfig);
+			if (empty($query['fields'])) {
+				$query['fields'] = $db->calculate($this, 'count');
+			} elseif (is_string($query['fields'])  && !preg_match('/count/i', $query['fields'])) {
+				$query['fields'] = $db->calculate($this, 'count', array(
+					$db->expression($query['fields']), 'count'
+				));
+			}
+			$query['order'] = false;
+			return $query;
+		} elseif ($state == 'after') {
+			if (isset($results[0][0]['count'])) {
+				return intval($results[0][0]['count']);
+			} elseif (isset($results[0][$this->alias]['count'])) {
+				return intval($results[0][$this->alias]['count']);
+			}
+			return false;
+		}
+	}
+
+/**
+ * Handles the before/after filter logic for find('list') operations.  Only called by Model::find().
+ *
+ * @param string $state Either "before" or "after"
+ * @param array $query
+ * @param array $data
+ * @return array Key/value pairs of primary keys/display field values of all records found
+ * @access protected
+ * @see Model::find()
+ */
+	function _findList($state, $query, $results = array()) {
+		if ($state == 'before') {
+			if (empty($query['fields'])) {
+				$query['fields'] = array("{$this->alias}.{$this->primaryKey}", "{$this->alias}.{$this->displayField}");
+				$list = array("{n}.{$this->alias}.{$this->primaryKey}", "{n}.{$this->alias}.{$this->displayField}", null);
+			} else {
+				if (!is_array($query['fields'])) {
+					$query['fields'] = String::tokenize($query['fields']);
+				}
+
+				if (count($query['fields']) == 1) {
+					if (strpos($query['fields'][0], '.') === false) {
+						$query['fields'][0] = $this->alias . '.' . $query['fields'][0];
+					}
+
+					$list = array("{n}.{$this->alias}.{$this->primaryKey}", '{n}.' . $query['fields'][0], null);
+					$query['fields'] = array("{$this->alias}.{$this->primaryKey}", $query['fields'][0]);
+				} elseif (count($query['fields']) == 3) {
+					for ($i = 0; $i < 3; $i++) {
+						if (strpos($query['fields'][$i], '.') === false) {
+							$query['fields'][$i] = $this->alias . '.' . $query['fields'][$i];
+						}
+					}
+
+					$list = array('{n}.' . $query['fields'][0], '{n}.' . $query['fields'][1], '{n}.' . $query['fields'][2]);
+				} else {
+					for ($i = 0; $i < 2; $i++) {
+						if (strpos($query['fields'][$i], '.') === false) {
+							$query['fields'][$i] = $this->alias . '.' . $query['fields'][$i];
+						}
+					}
+
+					$list = array('{n}.' . $query['fields'][0], '{n}.' . $query['fields'][1], null);
+				}
+			}
+			if (!isset($query['recursive']) || $query['recursive'] === null) {
+				$query['recursive'] = -1;
+			}
+			list($query['list']['keyPath'], $query['list']['valuePath'], $query['list']['groupPath']) = $list;
+			return $query;
+		} elseif ($state == 'after') {
+			if (empty($results)) {
+				return array();
+			}
+			$lst = $query['list'];
+			return Set::combine($results, $lst['keyPath'], $lst['valuePath'], $lst['groupPath']);
+		}
+	}
+
+/**
+ * Detects the previous field's value, then uses logic to find the 'wrapping'
+ * rows and return them.
+ *
+ * @param string $state Either "before" or "after"
+ * @param mixed $query
+ * @param array $results
+ * @return array
+ * @access protected
+ */
+	function _findNeighbors($state, $query, $results = array()) {
+		if ($state == 'before') {
+			$query = array_merge(array('recursive' => 0), $query);
+			extract($query);
+			$conditions = (array)$conditions;
+			if (isset($field) && isset($value)) {
+				if (strpos($field, '.') === false) {
+					$field = $this->alias . '.' . $field;
+				}
+			} else {
+				$field = $this->alias . '.' . $this->primaryKey;
+				$value = $this->id;
+			}
+			$query['conditions'] = 	array_merge($conditions, array($field . ' <' => $value));
+			$query['order'] = $field . ' DESC';
+			$query['limit'] = 1;
+			$query['field'] = $field;
+			$query['value'] = $value;
+			return $query;
+		} elseif ($state == 'after') {
+			extract($query);
+			unset($query['conditions'][$field . ' <']);
+			$return = array();
+			if (isset($results[0])) {
+				$prevVal = Set::extract('/' . str_replace('.', '/', $field), $results[0]);
+				$query['conditions'][$field . ' >='] = $prevVal[0];
+				$query['conditions'][$field . ' !='] = $value;
+				$query['limit'] = 2;
+			} else {
+				$return['prev'] = null;
+				$query['conditions'][$field . ' >'] = $value;
+				$query['limit'] = 1;
+			}
+			$query['order'] = $field . ' ASC';
+			$return2 = $this->find('all', $query);
+			if (!array_key_exists('prev', $return)) {
+				$return['prev'] = $return2[0];
+			}
+			if (count($return2) == 2) {
+				$return['next'] = $return2[1];
+			} elseif (count($return2) == 1 && !$return['prev']) {
+				$return['next'] = $return2[0];
+			} else {
+				$return['next'] = null;
+			}
+			return $return;
+		}
+	}
+
+/**
+ * In the event of ambiguous results returned (multiple top level results, with different parent_ids)
+ * top level results with different parent_ids to the first result will be dropped
+ *
+ * @param mixed $state
+ * @param mixed $query
+ * @param array $results
+ * @return array Threaded results
+ * @access protected
+ */
+	function _findThreaded($state, $query, $results = array()) {
+		if ($state == 'before') {
+			return $query;
+		} elseif ($state == 'after') {
+			$return = $idMap = array();
+			$ids = Set::extract($results, '{n}.' . $this->alias . '.' . $this->primaryKey);
+
+			foreach ($results as $result) {
+				$result['children'] = array();
+				$id = $result[$this->alias][$this->primaryKey];
+				$parentId = $result[$this->alias]['parent_id'];
+				if (isset($idMap[$id]['children'])) {
+					$idMap[$id] = array_merge($result, (array)$idMap[$id]);
+				} else {
+					$idMap[$id] = array_merge($result, array('children' => array()));
+				}
+				if (!$parentId || !in_array($parentId, $ids)) {
+					$return[] =& $idMap[$id];
+				} else {
+					$idMap[$parentId]['children'][] =& $idMap[$id];
+				}
+			}
+			if (count($return) > 1) {
+				$ids = array_unique(Set::extract('/' . $this->alias . '/parent_id', $return));
+				if (count($ids) > 1) {
+					$root = $return[0][$this->alias]['parent_id'];
+					foreach ($return as $key => $value) {
+						if ($value[$this->alias]['parent_id'] != $root) {
+							unset($return[$key]);
+						}
+					}
+				}
+			}
+			return $return;
+		}
+	}
+
+/**
+ * Passes query results through model and behavior afterFilter() methods.
+ *
+ * @param array Results to filter
+ * @param boolean $primary If this is the primary model results (results from model where the find operation was performed)
+ * @return array Set of filtered results
+ * @access private
+ */
+	function __filterResults($results, $primary = true) {
+		$return = $this->Behaviors->trigger($this, 'afterFind', array($results, $primary), array('modParams' => true));
+		if ($return !== true) {
+			$results = $return;
+		}
+		return $this->afterFind($results, $primary);
+	}
+
+/**
+ * This resets the association arrays for the model back
+ * to those originally defined in the model. Normally called at the end
+ * of each call to Model::find()
+ *
+ * @return boolean Success
+ * @access public
+ */
+	function resetAssociations() {
+		if (!empty($this->__backAssociation)) {
+			foreach ($this->__associations as $type) {
+				if (isset($this->__backAssociation[$type])) {
+					$this->{$type} = $this->__backAssociation[$type];
+				}
+			}
+			$this->__backAssociation = array();
+		}
+
+		foreach ($this->__associations as $type) {
+			foreach ($this->{$type} as $key => $name) {
+				if (!empty($this->{$key}->__backAssociation)) {
+					$this->{$key}->resetAssociations();
+				}
+			}
+		}
+		$this->__backAssociation = array();
+		return true;
+	}
+
+/**
+ * Returns false if any fields passed match any (by default, all if $or = false) of their matching values.
+ *
+ * @param array $fields Field/value pairs to search (if no values specified, they are pulled from $this->data)
+ * @param boolean $or If false, all fields specified must match in order for a false return value
+ * @return boolean False if any records matching any fields are found
+ * @access public
+ */
+	function isUnique($fields, $or = true) {
+		if (!is_array($fields)) {
+			$fields = func_get_args();
+			if (is_bool($fields[count($fields) - 1])) {
+				$or = $fields[count($fields) - 1];
+				unset($fields[count($fields) - 1]);
+			}
+		}
+
+		foreach ($fields as $field => $value) {
+			if (is_numeric($field)) {
+				unset($fields[$field]);
+
+				$field = $value;
+				if (isset($this->data[$this->alias][$field])) {
+					$value = $this->data[$this->alias][$field];
+				} else {
+					$value = null;
+				}
+			}
+
+			if (strpos($field, '.') === false) {
+				unset($fields[$field]);
+				$fields[$this->alias . '.' . $field] = $value;
+			}
+		}
+		if ($or) {
+			$fields = array('or' => $fields);
+		}
+		if (!empty($this->id)) {
+			$fields[$this->alias . '.' . $this->primaryKey . ' !='] =  $this->id;
+		}
+		return ($this->find('count', array('conditions' => $fields, 'recursive' => -1)) == 0);
+	}
+
+/**
+ * Returns a resultset for a given SQL statement. Custom SQL queries should be performed with this method.
+ *
+ * @param string $sql SQL statement
+ * @return array Resultset
+ * @access public
+ * @link http://book.cakephp.org/view/1027/query
+ */
+	function query() {
+		$params = func_get_args();
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		return call_user_func_array(array(&$db, 'query'), $params);
+	}
+
+/**
+ * Returns true if all fields pass validation. Will validate hasAndBelongsToMany associations
+ * that use the 'with' key as well. Since __saveMulti is incapable of exiting a save operation.
+ *
+ * Will validate the currently set data.  Use Model::set() or Model::create() to set the active data.
+ *
+ * @param string $options An optional array of custom options to be made available in the beforeValidate callback
+ * @return boolean True if there are no errors
+ * @access public
+ * @link http://book.cakephp.org/view/1182/Validating-Data-from-the-Controller
+ */
+	function validates($options = array()) {
+		$errors = $this->invalidFields($options);
+		if (empty($errors) && $errors !== false) {
+			$errors = $this->__validateWithModels($options);
+		}
+		if (is_array($errors)) {
+			return count($errors) === 0;
+		}
+		return $errors;
+	}
+
+/**
+ * Returns an array of fields that have failed validation. On the current model.
+ *
+ * @param string $options An optional array of custom options to be made available in the beforeValidate callback
+ * @return array Array of invalid fields
+ * @see Model::validates()
+ * @access public
+ * @link http://book.cakephp.org/view/1182/Validating-Data-from-the-Controller
+ */
+	function invalidFields($options = array()) {
+		if (
+			!$this->Behaviors->trigger(
+				$this,
+				'beforeValidate',
+				array($options),
+				array('break' => true, 'breakOn' => false)
+			) ||
+			$this->beforeValidate($options) === false
+		) {
+			return false;
+		}
+
+		if (!isset($this->validate) || empty($this->validate)) {
+			return $this->validationErrors;
+		}
+
+		$data = $this->data;
+		$methods = array_map('strtolower', get_class_methods($this));
+		$behaviorMethods = array_keys($this->Behaviors->methods());
+
+		if (isset($data[$this->alias])) {
+			$data = $data[$this->alias];
+		} elseif (!is_array($data)) {
+			$data = array();
+		}
+
+		$Validation =& Validation::getInstance();
+		$exists = $this->exists();
+
+		$_validate = $this->validate;
+		$whitelist = $this->whitelist;
+
+		if (!empty($options['fieldList'])) {
+			$whitelist = $options['fieldList'];
+		}
+
+		if (!empty($whitelist)) {
+			$validate = array();
+			foreach ((array)$whitelist as $f) {
+				if (!empty($this->validate[$f])) {
+					$validate[$f] = $this->validate[$f];
+				}
+			}
+			$this->validate = $validate;
+		}
+
+		foreach ($this->validate as $fieldName => $ruleSet) {
+			if (!is_array($ruleSet) || (is_array($ruleSet) && isset($ruleSet['rule']))) {
+				$ruleSet = array($ruleSet);
+			}
+			$default = array(
+				'allowEmpty' => null,
+				'required' => null,
+				'rule' => 'blank',
+				'last' => false,
+				'on' => null
+			);
+
+			foreach ($ruleSet as $index => $validator) {
+				if (!is_array($validator)) {
+					$validator = array('rule' => $validator);
+				}
+				$validator = array_merge($default, $validator);
+
+				if (isset($validator['message'])) {
+					$message = $validator['message'];
+				} else {
+					$message = __('This field cannot be left blank', true);
+				}
+
+				if (
+					empty($validator['on']) || ($validator['on'] == 'create' &&
+					!$exists) || ($validator['on'] == 'update' && $exists
+				)) {
+					$required = (
+						(!isset($data[$fieldName]) && $validator['required'] === true) ||
+						(
+							isset($data[$fieldName]) && (empty($data[$fieldName]) &&
+							!is_numeric($data[$fieldName])) && $validator['allowEmpty'] === false
+						)
+					);
+
+					if ($required) {
+						$this->invalidate($fieldName, $message);
+						if ($validator['last']) {
+							break;
+						}
+					} elseif (array_key_exists($fieldName, $data)) {
+						if (empty($data[$fieldName]) && $data[$fieldName] != '0' && $validator['allowEmpty'] === true) {
+							break;
+						}
+						if (is_array($validator['rule'])) {
+							$rule = $validator['rule'][0];
+							unset($validator['rule'][0]);
+							$ruleParams = array_merge(array($data[$fieldName]), array_values($validator['rule']));
+						} else {
+							$rule = $validator['rule'];
+							$ruleParams = array($data[$fieldName]);
+						}
+
+						$valid = true;
+
+						if (in_array(strtolower($rule), $methods)) {
+							$ruleParams[] = $validator;
+							$ruleParams[0] = array($fieldName => $ruleParams[0]);
+							$valid = $this->dispatchMethod($rule, $ruleParams);
+						} elseif (in_array($rule, $behaviorMethods) || in_array(strtolower($rule), $behaviorMethods)) {
+							$ruleParams[] = $validator;
+							$ruleParams[0] = array($fieldName => $ruleParams[0]);
+							$valid = $this->Behaviors->dispatchMethod($this, $rule, $ruleParams);
+						} elseif (method_exists($Validation, $rule)) {
+							$valid = $Validation->dispatchMethod($rule, $ruleParams);
+						} elseif (!is_array($validator['rule'])) {
+							$valid = preg_match($rule, $data[$fieldName]);
+						} elseif (Configure::read('debug') > 0) {
+							trigger_error(sprintf(__('Could not find validation handler %s for %s', true), $rule, $fieldName), E_USER_WARNING);
+						}
+
+						if (!$valid || (is_string($valid) && strlen($valid) > 0)) {
+							if (is_string($valid) && strlen($valid) > 0) {
+								$validator['message'] = $valid;
+							} elseif (!isset($validator['message'])) {
+								if (is_string($index)) {
+									$validator['message'] = $index;
+								} elseif (is_numeric($index) && count($ruleSet) > 1) {
+									$validator['message'] = $index + 1;
+								} else {
+									$validator['message'] = $message;
+								}
+							}
+							$this->invalidate($fieldName, $validator['message']);
+
+							if ($validator['last']) {
+								break;
+							}
+						}
+					}
+				}
+			}
+		}
+		$this->validate = $_validate;
+		return $this->validationErrors;
+	}
+
+/**
+ * Runs validation for hasAndBelongsToMany associations that have 'with' keys
+ * set. And data in the set() data set.
+ *
+ * @param array $options Array of options to use on Valdation of with models
+ * @return boolean Failure of validation on with models.
+ * @access private
+ * @see Model::validates()
+ */
+	function __validateWithModels($options) {
+		$valid = true;
+		foreach ($this->hasAndBelongsToMany as $assoc => $association) {
+			if (empty($association['with']) || !isset($this->data[$assoc])) {
+				continue;
+			}
+			list($join) = $this->joinModel($this->hasAndBelongsToMany[$assoc]['with']);
+			$data = $this->data[$assoc];
+
+			$newData = array();
+			foreach ((array)$data as $row) {
+				if (isset($row[$this->hasAndBelongsToMany[$assoc]['associationForeignKey']])) {
+					$newData[] = $row;
+				} elseif (isset($row[$join]) && isset($row[$join][$this->hasAndBelongsToMany[$assoc]['associationForeignKey']])) {
+					$newData[] = $row[$join];
+				}
+			}
+			if (empty($newData)) {
+				continue;
+			}
+			foreach ($newData as $data) {
+				$data[$this->hasAndBelongsToMany[$assoc]['foreignKey']] = $this->id;
+				$this->{$join}->create($data);
+				$valid = ($valid && $this->{$join}->validates($options));
+			}
+		}
+		return $valid;
+	}
+/**
+ * Marks a field as invalid, optionally setting the name of validation
+ * rule (in case of multiple validation for field) that was broken.
+ *
+ * @param string $field The name of the field to invalidate
+ * @param mixed $value Name of validation rule that was not failed, or validation message to
+ *    be returned. If no validation key is provided, defaults to true.
+ * @access public
+ */
+	function invalidate($field, $value = true) {
+		if (!is_array($this->validationErrors)) {
+			$this->validationErrors = array();
+		}
+		$this->validationErrors[$field] = $value;
+	}
+
+/**
+ * Returns true if given field name is a foreign key in this model.
+ *
+ * @param string $field Returns true if the input string ends in "_id"
+ * @return boolean True if the field is a foreign key listed in the belongsTo array.
+ * @access public
+ */
+	function isForeignKey($field) {
+		$foreignKeys = array();
+		if (!empty($this->belongsTo)) {
+			foreach ($this->belongsTo as $assoc => $data) {
+				$foreignKeys[] = $data['foreignKey'];
+			}
+		}
+		return in_array($field, $foreignKeys);
+	}
+
+/**
+ * Escapes the field name and prepends the model name. Escaping is done according to the
+ * current database driver's rules.
+ *
+ * @param string $field Field to escape (e.g: id)
+ * @param string $alias Alias for the model (e.g: Post)
+ * @return string The name of the escaped field for this Model (i.e. id becomes `Post`.`id`).
+ * @access public
+ */
+	function escapeField($field = null, $alias = null) {
+		if (empty($alias)) {
+			$alias = $this->alias;
+		}
+		if (empty($field)) {
+			$field = $this->primaryKey;
+		}
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		if (strpos($field, $db->name($alias) . '.') === 0) {
+			return $field;
+		}
+		return $db->name($alias . '.' . $field);
+	}
+
+/**
+ * Returns the current record's ID
+ *
+ * @param integer $list Index on which the composed ID is located
+ * @return mixed The ID of the current record, false if no ID
+ * @access public
+ */
+	function getID($list = 0) {
+		if (empty($this->id) || (is_array($this->id) && isset($this->id[0]) && empty($this->id[0]))) {
+			return false;
+		}
+
+		if (!is_array($this->id)) {
+			return $this->id;
+		}
+
+		if (empty($this->id)) {
+			return false;
+		}
+
+		if (isset($this->id[$list]) && !empty($this->id[$list])) {
+			return $this->id[$list];
+		} elseif (isset($this->id[$list])) {
+			return false;
+		}
+
+		foreach ($this->id as $id) {
+			return $id;
+		}
+
+		return false;
+	}
+
+/**
+ * Returns the ID of the last record this model inserted.
+ *
+ * @return mixed Last inserted ID
+ * @access public
+ */
+	function getLastInsertID() {
+		return $this->getInsertID();
+	}
+
+/**
+ * Returns the ID of the last record this model inserted.
+ *
+ * @return mixed Last inserted ID
+ * @access public
+ */
+	function getInsertID() {
+		return $this->__insertID;
+	}
+
+/**
+ * Sets the ID of the last record this model inserted
+ *
+ * @param mixed Last inserted ID
+ * @access public
+ */
+	function setInsertID($id) {
+		$this->__insertID = $id;
+	}
+
+/**
+ * Returns the number of rows returned from the last query.
+ *
+ * @return int Number of rows
+ * @access public
+ */
+	function getNumRows() {
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		return $db->lastNumRows();
+	}
+
+/**
+ * Returns the number of rows affected by the last query.
+ *
+ * @return int Number of rows
+ * @access public
+ */
+	function getAffectedRows() {
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		return $db->lastAffected();
+	}
+
+/**
+ * Sets the DataSource to which this model is bound.
+ *
+ * @param string $dataSource The name of the DataSource, as defined in app/config/database.php
+ * @return boolean True on success
+ * @access public
+ */
+	function setDataSource($dataSource = null) {
+		$oldConfig = $this->useDbConfig;
+
+		if ($dataSource != null) {
+			$this->useDbConfig = $dataSource;
+		}
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		if (!empty($oldConfig) && isset($db->config['prefix'])) {
+			$oldDb =& ConnectionManager::getDataSource($oldConfig);
+
+			if (!isset($this->tablePrefix) || (!isset($oldDb->config['prefix']) || $this->tablePrefix == $oldDb->config['prefix'])) {
+				$this->tablePrefix = $db->config['prefix'];
+			}
+		} elseif (isset($db->config['prefix'])) {
+			$this->tablePrefix = $db->config['prefix'];
+		}
+
+		if (empty($db) || !is_object($db)) {
+			return $this->cakeError('missingConnection', array(array('code' => 500, 'className' => $this->alias)));
+		}
+	}
+
+/**
+ * Gets the DataSource to which this model is bound.
+ * Not safe for use with some versions of PHP4, because this class is overloaded.
+ *
+ * @return object A DataSource object
+ * @access public
+ */
+	function &getDataSource() {
+		$db =& ConnectionManager::getDataSource($this->useDbConfig);
+		return $db;
+	}
+
+/**
+ * Gets all the models with which this model is associated.
+ *
+ * @param string $type Only result associations of this type
+ * @return array Associations
+ * @access public
+ */
+	function getAssociated($type = null) {
+		if ($type == null) {
+			$associated = array();
+			foreach ($this->__associations as $assoc) {
+				if (!empty($this->{$assoc})) {
+					$models = array_keys($this->{$assoc});
+					foreach ($models as $m) {
+						$associated[$m] = $assoc;
+					}
+				}
+			}
+			return $associated;
+		} elseif (in_array($type, $this->__associations)) {
+			if (empty($this->{$type})) {
+				return array();
+			}
+			return array_keys($this->{$type});
+		} else {
+			$assoc = array_merge(
+				$this->hasOne,
+				$this->hasMany,
+				$this->belongsTo,
+				$this->hasAndBelongsToMany
+			);
+			if (array_key_exists($type, $assoc)) {
+				foreach ($this->__associations as $a) {
+					if (isset($this->{$a}[$type])) {
+						$assoc[$type]['association'] = $a;
+						break;
+					}
+				}
+				return $assoc[$type];
+			}
+			return null;
+		}
+	}
+
+/**
+ * Gets the name and fields to be used by a join model.  This allows specifying join fields
+ * in the association definition.
+ *
+ * @param object $model The model to be joined
+ * @param mixed $with The 'with' key of the model association
+ * @param array $keys Any join keys which must be merged with the keys queried
+ * @return array
+ * @access public
+ */
+	function joinModel($assoc, $keys = array()) {
+		if (is_string($assoc)) {
+			return array($assoc, array_keys($this->{$assoc}->schema()));
+		} elseif (is_array($assoc)) {
+			$with = key($assoc);
+			return array($with, array_unique(array_merge($assoc[$with], $keys)));
+		}
+		trigger_error(
+			sprintf(__('Invalid join model settings in %s', true), $model->alias),
+			E_USER_WARNING
+		);
+	}
+
+/**
+ * Called before each find operation. Return false if you want to halt the find
+ * call, otherwise return the (modified) query data.
+ *
+ * @param array $queryData Data used to execute this query, i.e. conditions, order, etc.
+ * @return mixed true if the operation should continue, false if it should abort; or, modified
+ *               $queryData to continue with new $queryData
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#beforeFind-1049
+ */
+	function beforeFind($queryData) {
+		return true;
+	}
+
+/**
+ * Called after each find operation. Can be used to modify any results returned by find().
+ * Return value should be the (modified) results.
+ *
+ * @param mixed $results The results of the find operation
+ * @param boolean $primary Whether this model is being queried directly (vs. being queried as an association)
+ * @return mixed Result of the find operation
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#afterFind-1050
+ */
+	function afterFind($results, $primary = false) {
+		return $results;
+	}
+
+/**
+ * Called before each save operation, after validation. Return a non-true result
+ * to halt the save.
+ *
+ * @return boolean True if the operation should continue, false if it should abort
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#beforeSave-1052
+ */
+	function beforeSave($options = array()) {
+		return true;
+	}
+
+/**
+ * Called after each successful save operation.
+ *
+ * @param boolean $created True if this save created a new record
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#afterSave-1053
+ */
+	function afterSave($created) {
+	}
+
+/**
+ * Called before every deletion operation.
+ *
+ * @param boolean $cascade If true records that depend on this record will also be deleted
+ * @return boolean True if the operation should continue, false if it should abort
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#beforeDelete-1054
+ */
+	function beforeDelete($cascade = true) {
+		return true;
+	}
+
+/**
+ * Called after every deletion operation.
+ *
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#afterDelete-1055
+ */
+	function afterDelete() {
+	}
+
+/**
+ * Called during validation operations, before validation. Please note that custom
+ * validation rules can be defined in $validate.
+ *
+ * @return boolean True if validate operation should continue, false to abort
+ * @param $options array Options passed from model::save(), see $options of model::save().
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#beforeValidate-1051
+ */
+	function beforeValidate($options = array()) {
+		return true;
+	}
+
+/**
+ * Called when a DataSource-level error occurs.
+ *
+ * @access public
+ * @link http://book.cakephp.org/view/1048/Callback-Methods#onError-1056
+ */
+	function onError() {
+	}
+
+/**
+ * Private method. Clears cache for this model.
+ *
+ * @param string $type If null this deletes cached views if Cache.check is true
+ *     Will be used to allow deleting query cache also
+ * @return boolean true on delete
+ * @access protected
+ * @todo
+ */
+	function _clearCache($type = null) {
+		if ($type === null) {
+			if (Configure::read('Cache.check') === true) {
+				$assoc[] = strtolower(Inflector::pluralize($this->alias));
+				$assoc[] = strtolower(Inflector::underscore(Inflector::pluralize($this->alias)));
+				foreach ($this->__associations as $key => $association) {
+					foreach ($this->$association as $key => $className) {
+						$check = strtolower(Inflector::pluralize($className['className']));
+						if (!in_array($check, $assoc)) {
+							$assoc[] = strtolower(Inflector::pluralize($className['className']));
+							$assoc[] = strtolower(Inflector::underscore(Inflector::pluralize($className['className'])));
+						}
+					}
+				}
+				clearCache($assoc);
+				return true;
+			}
+		} else {
+			//Will use for query cache deleting
+		}
+	}
+
+/**
+ * Called when serializing a model.
+ *
+ * @return array Set of object variable names this model has
+ * @access private
+ */
+	function __sleep() {
+		$return = array_keys(get_object_vars($this));
+		return $return;
+	}
+
+/**
+ * Called when de-serializing a model.
+ *
+ * @access private
+ * @todo
+ */
+	function __wakeup() {
+	}
+}
+if (!defined('CAKEPHP_UNIT_TEST_EXECUTION')) {
+	Overloadable::overload('Model');
+}