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<?php defined('SYSPATH') OR die('No direct script access.'); |
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/** |
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* Handles has one to relationships |
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* |
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* @package Jam |
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* @category Associations |
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* @author Ivan Kerin |
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* @copyright (c) 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_Association_Hasone extends Jam_Association { |
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/** |
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* Set this for polymorphic association, this has to be the name of the opposite belongsto relation, |
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* so if the oposite relation was item->parent, then this will have to be 'ites' => Jam::association('hasone, array('as' => 'parent') |
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* If this option is set then the foreign_key default becomes "{$as}_id", and polymorphic_key to "{$as}_model" |
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* @var string |
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*/ |
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public $as = NULL; |
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/** |
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* The foreign key |
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* @var string |
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*/ |
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public $foreign_key = NULL; |
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public $inverse_of = NULL; |
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public $polymorphic_key = NULL; |
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/** |
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* Automatically sets foreign to sensible defaults. |
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* |
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* @param string $model |
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* @param string $name |
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* @return void |
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*/ |
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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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if ( ! $this->foreign_model) |
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{ |
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$this->foreign_model = $name; |
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} |
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if ( ! $this->foreign_key) |
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{ |
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$this->foreign_key = $this->model.'_id'; |
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} |
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// Polymorphic associations |
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if ($this->as) |
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{ |
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$this->foreign_key = $this->as.'_id'; |
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if ( ! $this->polymorphic_key) |
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{ |
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$this->polymorphic_key = $this->as.'_model'; |
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} |
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} |
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} |
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/** |
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* Load associated model (from database or after deserialization) |
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* @param Jam_Validated $model |
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* @param mixed $value |
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* @return Jam_Model |
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*/ |
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public function load_fields(Jam_Validated $model, $value) |
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{ |
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if (is_array($value)) |
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{ |
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$value = Jam::build($this->foreign_model)->load_fields($value); |
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} |
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if ($value instanceof Jam_Model AND $this->inverse_of) |
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{ |
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$value->retrieved($this->inverse_of, $model); |
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} |
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return $value; |
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} |
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/** |
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* Return a Jam_Query_Builder_Join object to allow a query to join with this association |
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* |
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* @param string $alias table name alias |
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* @param string $type join type (LEFT, NATURAL) |
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* @return Jam_Query_Builder_Join |
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*/ |
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public function join($alias, $type = NULL) |
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{ |
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$join = Jam_Query_Builder_Join::factory($alias ? array($this->foreign_model, $alias) : $this->foreign_model, $type) |
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->context_model($this->model) |
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->on($this->foreign_key, '=', ':primary_key'); |
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if ($this->is_polymorphic()) |
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{ |
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$join->on($this->polymorphic_key, '=', DB::expr(':model', array(':model' => $this->model))); |
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} |
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return $join; |
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} |
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/** |
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* Get the belonging model for this association using the foreign key, |
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* if the data was changed, use the key from the changed data. |
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* Assign inverse_of |
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* |
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* @param Jam_Validated $model |
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* @param mixed $value changed data |
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* @param boolean $is_changed |
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* @return Jam_Model |
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*/ |
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public function get(Jam_Validated $model, $value, $is_changed) |
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{ |
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if ($is_changed) |
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{ |
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if ($value instanceof Jam_Validated OR ! $value) |
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return $value; |
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$key = Jam_Association::primary_key($this->foreign_model, $value); |
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if ($key) |
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{ |
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$item = $this->_find_item($this->foreign_model, $key); |
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} |
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elseif (is_array($value)) |
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{ |
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$item = Jam::build($this->foreign_model, $value); |
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} |
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else |
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{ |
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$item = NULL; |
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} |
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if ($item AND is_array($value)) |
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{ |
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$item->set($value); |
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} |
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} |
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else |
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{ |
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$item = $this->_find_item($this->foreign_model, $model); |
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} |
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return $this->set($model, $item, $is_changed); |
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} |
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public function set(Jam_Validated $model, $value, $is_changed) |
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{ |
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if ($value instanceof Jam_Model) |
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{ |
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if ($this->is_polymorphic()) |
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{ |
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$value->{$this->polymorphic_key} = $model->meta()->model(); |
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} |
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if ($model->loaded()) |
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{ |
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$value->{$this->foreign_key} = $model->id(); |
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} |
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if ($this->as) |
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{ |
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$value->retrieved($this->as, $model); |
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} |
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if ($this->inverse_of) |
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{ |
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$value->retrieved($this->inverse_of, $model); |
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} |
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} |
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return $value; |
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} |
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public function build(Jam_Validated $model, array $attributes = NULL) |
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{ |
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$item = Jam::build($this->foreign_model, $attributes); |
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$this->set($model, $item, TRUE); |
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return $item; |
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} |
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/** |
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* Perform validation on the belonging model, if it was changed. |
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* @param Jam_Model $model |
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* @param Jam_Event_Data $data |
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* @param array $changed |
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*/ |
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public function model_after_check(Jam_Model $model, Jam_Event_Data $data, $changed) |
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{ |
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if (($value = Arr::get($changed, $this->name)) AND Jam_Association::is_changed($value)) |
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{ |
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if ( ! $model->{$this->name}->is_validating() AND ! $model->{$this->name}->check()) |
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{ |
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$model->errors()->add($this->name, 'association', array(':errors' => $model->{$this->name}->errors())); |
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} |
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} |
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} |
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/** |
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* Save the related model after the main model, if it was changed |
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* Only save related model if it has been changed, and is not in a process of saving itself |
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* |
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* @param Jam_Model $model |
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* @param Jam_Event_Data $data |
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* @param boolean $changed |
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*/ |
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public function model_after_save(Jam_Model $model, Jam_Event_Data $data, $changed) |
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{ |
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$nullify_query = $this->update_query($model, NULL, NULL); |
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if (($value = Arr::get($changed, $this->name))) |
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{ |
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if (Jam_Association::is_changed($value) AND ($item = $model->{$this->name})) |
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{ |
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if ( ! $item->is_saving()) |
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{ |
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$this->set($model, $item, TRUE)->save(); |
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} |
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if ($item->id()) |
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{ |
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$nullify_query->where('id', '!=', $item->id())->execute(); |
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} |
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} |
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else |
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{ |
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$key = Jam_Association::primary_key($this->foreign_model, $value); |
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$query = Jam_Query_Builder_Update::factory($this->foreign_model) |
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->where(':unique_key', '=', $key) |
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->value($this->foreign_key, $model->id()); |
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if ($this->is_polymorphic()) |
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{ |
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$query |
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->value($this->polymorphic_key, $model->meta()->model()); |
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} |
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$nullify_query->execute(); |
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$query->execute(); |
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} |
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} |
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elseif (array_key_exists($this->name, $changed)) |
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{ |
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$nullify_query->execute(); |
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} |
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} |
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/** |
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* Delete related model if it has been assigned as dependent |
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* If dependent is Jam_Association::DELETE - execute the delete method (and all events) |
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* IF dependent is Jam_Association::ERASE - simply remove from database without executing any events (faster) |
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* @param Jam_Model $model |
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*/ |
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public function model_before_delete(Jam_Model $model) |
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{ |
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if (Jam_Association::DELETE === $this->dependent) |
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{ |
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if ($model->{$this->name}) |
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{ |
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$model->{$this->name}->delete(); |
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} |
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} |
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elseif (Jam_Association::ERASE === $this->dependent) |
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{ |
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$this->query_builder('delete', $model)->execute(); |
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} |
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elseif (Jam_Association::NULLIFY === $this->dependent) |
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{ |
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$this->update_query($model, NULL, NULL)->execute(); |
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} |
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} |
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/** |
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* See if the association is polymorphic |
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* @return boolean |
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*/ |
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public function is_polymorphic() |
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{ |
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return (bool) $this->as; |
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} |
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protected function _find_item($foreign_model, $key) |
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{ |
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if ( ! $key) |
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return; |
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if ($key instanceof Jam_Model) |
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{ |
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if ( ! $key->loaded()) |
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return; |
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$query = $this->query_builder('all', $key); |
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} |
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else |
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{ |
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$query = new Jam_Query_Builder_Collection($foreign_model); |
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$query |
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->where(':unique_key', '=', $key) |
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->limit(1); |
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} |
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return $query->current(); |
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} |
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public function query_builder($type, Jam_Model $model) |
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{ |
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$query = call_user_func("Jam::{$type}", $this->foreign_model) |
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->where($this->foreign_key, '=', $model->id()); |
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if ($this->is_polymorphic()) |
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{ |
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$query->where($this->polymorphic_key, '=', $model->meta()->model()); |
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} |
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return $query; |
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} |
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public function update_query(Jam_Model $model, $new_id, $new_model) |
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{ |
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$query = $this->query_builder('update', $model) |
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->value($this->foreign_key, $new_id); |
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if ($this->is_polymorphic()) |
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{ |
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$query->value($this->polymorphic_key, $new_model); |
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} |
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return $query; |
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} |
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} |
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This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italy
is not defined by the methodfinale(...)
.The most likely cause is that the parameter was removed, but the annotation was not.