PHP Base_model::delete方法代码示例

 /**
  * Deletes one Author
  * and the corresponding lang data
  *
  * @param int 	$id
  *
  * @return int	Number of delete items in main table
  *
  */
 public function delete($id)
 {
     $nb_rows = parent::delete($id, $this->_author_table);
     if ($nb_rows > 0) {
         parent::delete($id, $this->_author_lang_table);
     }
     return $nb_rows;
 }

 public function delete_temp($Id = NULL)
 {
     $className = get_class($this);
     if (isset($Id) && $Id != NULL) {
         if (property_exists($className, $this->getStateKey())) {
             return $this->db->update($this->getTableName(), array($this->getStateKey() => 0), array('Id' => $Id));
         } else {
             return $this->db->delete($this->getTableName(), array('Id' => $Id));
         }
     } else {
         return parent::delete();
     }
 }

 /**
  * Deletes one item definition
  * Also deletes :
  * - All items linked to this definition
  * - All corresponding extend field & extend fields instances
  * - Links between content & items
  *
  * @param null $id_item_definition
  *
  * @return int|void
  */
 public function delete($id_item_definition)
 {
     // Items instances IDs
     $item_ids = $this->get_keys_array('id_item', array($this->get_pk_name() => $id_item_definition), self::$_ITEM);
     // Items Definition & Item definition langs
     $where = array($this->get_pk_name() => $id_item_definition);
     parent::delete($where);
     parent::delete($where, $this->get_lang_table());
     // Extend fields instances
     if (!empty($item_ids)) {
         parent::delete(array('parent' => 'item', 'where_in' => array('id_parent' => $item_ids)), self::$_EXTEND_FIELDS);
     }
     // Extend Field definition
     parent::delete(array('parent' => 'item', 'id_parent' => $id_item_definition), self::$_EXTEND_FIELD);
     // Item definition
     parent::delete($where, self::$_ITEM);
     // Items links to content
     if (!empty($item_ids)) {
         parent::delete(array('where_in' => array('id_parent' => $item_ids)), self::$_ITEMS);
     }
 }

 /**
  * Remove one media
  * Unlink it from all content
  * Does not remove the source file
  *
  * @param $id_media
  */
 public function remove($id_media)
 {
     $where = array('id_media' => $id_media);
     parent::delete($where, 'media');
     parent::delete($where, 'media_lang');
     parent::delete($where, 'page_media');
     parent::delete($where, 'article_media');
 }

 public function unlink_from_context($id_extend_field, $context, $id_context = NULL)
 {
     $where = array('id_extend_field' => $id_extend_field, 'context' => $context);
     if (!is_null($id_context)) {
         $where['id_context'] = $id_context;
     }
     if ($this->exists($where, self::$_CONTEXT_TABLE)) {
         parent::delete($where, self::$_CONTEXT_TABLE);
     }
 }

 public function delete_extend_field($id_extend_field)
 {
     // Begin transaction
     $this->{$this->db_group}->trans_start();
     // Definition
     parent::delete(array('id_extend_field' => $id_extend_field), 'extend_field');
     // Lang
     parent::delete(array('id_extend_field' => $id_extend_field), 'extend_field_lang');
     // Instances
     $this->delete_extend_fields($id_extend_field);
     // Context
     parent::delete(array('id_extend_field' => $id_extend_field), 'extend_field_context');
     // Transaction complete
     $this->{$this->db_group}->trans_complete();
     return $this->{$this->db_group}->trans_status();
 }

 /**
  * @param $id_tag
  *
  * @return bool|int|the
  */
 public function delete_all($id_tag)
 {
     $affected_rows = parent::delete(array('id_tag' => $id_tag));
     $this->{$this->db_group}->where('id_tag', $id_tag);
     $this->{$this->db_group}->delete('article_tag');
     return $affected_rows;
 }

 public function delete($id_item)
 {
     $affected_rows = 0;
     $item = $this->get($id_item);
     // Check if exists
     if ($this->exists(array($this->get_pk_name() => $id_item))) {
         // Item
         $affected_rows = parent::delete(array($this->get_pk_name() => $id_item));
         // Extend fields content delete
         $affected_rows += parent::delete(array('id_parent' => $id_item, 'parent' => 'item'), self::$_EXTEND_FIELDS);
         // Links with content
         $affected_rows += parent::delete(array('id_item' => $id_item), self::$_ITEMS);
         $this->_reorder($item['id_item_definition']);
     }
     return $affected_rows;
 }

 public function delete_extend_field($id_extend_field)
 {
     try {
         if (Event::has_listeners('Extend.field.delete.before')) {
             // Listeners must throw one Exception if the item cannot be deleted
             Event::fire('Extend.field.delete.before', $id_extend_field);
         }
         // Begin transaction
         $this->{$this->db_group}->trans_start();
         // Definition
         parent::delete(array('id_extend_field' => $id_extend_field), 'extend_field');
         // Lang
         parent::delete(array('id_extend_field' => $id_extend_field), 'extend_field_lang');
         // Instances
         $this->delete_extend_fields($id_extend_field);
         // Context
         // parent::delete(array('id_extend_field'=>$id_extend_field), 'extend_field_context');
         // Transaction complete
         $this->{$this->db_group}->trans_complete();
         return $this->{$this->db_group}->trans_status();
     } catch (Exception $e) {
         throw new Exception($e->getMessage());
     }
 }

 public function unlink_extend_from_element($id_extend, $id_ui_element)
 {
     $where = array('id_extend' => $id_extend, 'id_ui_element' => $id_ui_element);
     parent::delete($where, self::$_TBL_LK_EXTEND);
 }