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<?php defined('SYSPATH') OR die('No direct access allowed.'); |
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/** |
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* Nested behavior for Jam ORM library |
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* Creates a nested set for this model, where an object can have a parent object of the same model. Requires parent_id field in the database. Reference @ref behaviors |
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* |
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* @package Jam |
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* @category Behavior |
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* @author Ivan Kerin |
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* @copyright (c) 2011-2012 Despark Ltd. |
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* @license http://www.opensource.org/licenses/isc-license.txt |
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*/ |
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abstract class Kohana_Jam_Behavior_Cascade extends Jam_Behavior { |
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static public $nesting_depth = 0; |
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protected $_callbacks = array(); |
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public function initialize(Jam_Meta $meta, $name) |
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{ |
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parent::initialize($meta, $name); |
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$meta->events() |
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->bind('model.before_save', array($this, 'record_depth')) |
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->bind('model.after_save', array($this, 'rollback_depth')); |
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} |
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public function callbacks() |
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{ |
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return $this->_callbacks; |
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} |
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protected static function _get_current_children_of_parent($current, $parent, array $children = array()) |
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{ |
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if ($current === $parent) |
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return $children; |
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foreach ($children as $association_name => $association_children) |
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{ |
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$name = is_numeric($association_name) ? $association_children : $association_name; |
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$association = Jam::meta($parent)->association($name); |
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if ($association AND ! $association->is_polymorphic()) |
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{ |
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$child_model = $association->foreign_model; |
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$child_children = is_numeric($association_name) ? array() : $association_children; |
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$result = Jam_Behavior_Cascade::_get_current_children_of_parent($current, $child_model, $child_children); |
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if ($result !== NULL) |
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return $result; |
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} |
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} |
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return NULL; |
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} |
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public static function get_current_children($current, array $children = array()) |
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{ |
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foreach ($children as $model => $associations) |
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{ |
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if ($result = Jam_Behavior_Cascade::_get_current_children_of_parent($current, $model, $associations)) |
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return $result; |
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} |
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return NULL; |
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} |
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protected static function _models($models) |
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{ |
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if ($models instanceof Jam_Model) |
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{ |
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return array($models); |
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} |
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if ($models instanceof Jam_Array_Association AND count($models)) |
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{ |
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return $models->as_array(); |
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} |
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return array(); |
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} |
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public static function collect_models(Jam_Model $model, array $children = array()) |
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{ |
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$collection = array($model); |
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foreach ($children as $child_name => $child_children) |
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{ |
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if (is_numeric($child_name)) |
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{ |
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$collection = array_merge($collection, Jam_Behavior_Cascade::_models($model->$child_children)); |
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} |
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else |
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{ |
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foreach (Jam_Behavior_Cascade::_models($model->$child_name) as $child_item) |
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{ |
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$collection = array_merge($collection, Jam_Behavior_Cascade::collect_models($child_item, (array) $child_children)); |
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} |
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} |
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} |
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return $collection; |
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} |
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/** |
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* Record another level of nesting for model saving |
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*/ |
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public function record_depth() |
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{ |
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Jam_Behavior_Cascade::$nesting_depth++; |
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} |
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/** |
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* Rollback a level of nesting for model saving, when we reech the top, call the execute method |
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* @param Jam_Model $model |
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*/ |
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public function rollback_depth(Jam_Model $model) |
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{ |
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Jam_Behavior_Cascade::$nesting_depth--; |
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if (Jam_Behavior_Cascade::$nesting_depth === 0) |
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{ |
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$this->execute($model); |
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} |
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} |
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public function execute(Jam_Model $model) |
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{ |
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foreach ($this->callbacks() as $method => $model_names) |
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{ |
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$children = Jam_Behavior_Cascade::get_current_children($model->meta()->model(), $model_names); |
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$models = Jam_Behavior_Cascade::collect_models($model, (array) $children); |
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call_user_func($method, $model, $models); |
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} |
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} |
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} |
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It seems like the method you are trying to call exists only in some of the possible types.
Let’s take a look at an example:
Available Fixes
Add an additional type-check:
Only allow a single type to be passed if the variable comes from a parameter: