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[ticket/11495] Add abstract implementation of the interface
PHPBB3-11495
This commit is contained in:
parent
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commit
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2 changed files with 714 additions and 0 deletions
632
phpBB/includes/nestedset/base.php
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632
phpBB/includes/nestedset/base.php
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<?php
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/**
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*
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* @package Nested Set
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* @copyright (c) 2013 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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abstract class phpbb_nestedset_base implements phpbb_nestedset_interface
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{
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/** @var phpbb_db_driver*/
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protected $db;
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/** @var String */
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protected $table_name;
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/** @var String */
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protected $item_class = 'phpbb_nestedset_item_base';
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/**
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* Column names in the table
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* @var array
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*/
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protected $table_columns = array(
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'item_id' => 'item_id',
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'left_id' => 'left_id',
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'right_id' => 'right_id',
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'parent_id' => 'parent_id',
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'item_parents' => 'item_parents',
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);
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/**
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* Additional SQL restrictions
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* Allows to have multiple nested sets in one table
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* @var String
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*/
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protected $sql_where = '';
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/**
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* List of item properties to be cached in $item_parents
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* @var array
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*/
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protected $item_basic_data = array('*');
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/**
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* Delete an item from the nested set (also deletes the rows form the table)
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*
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* Also deletes all subitems from the nested set
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*
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* @param string $operator SQL operator that needs to be prepended to sql_where,
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* if it is not empty.
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* @param string $column_prefix Prefix that needs to be prepended to column names
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* @return bool True if the item was deleted
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*/
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public function get_sql_where($operator = 'AND', $column_prefix = '')
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{
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return (!$this->sql_where) ? '' : $operator . ' ' . sprintf($this->sql_where, $column_prefix);
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}
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/**
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* @inheritdoc
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*/
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public function insert(array $additional_data)
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{
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$item_data = array_merge($additional_data, array(
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$this->table_columns['parent_id'] => 0,
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$this->table_columns['left_id'] => 0,
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$this->table_columns['right_id'] => 0,
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$this->table_columns['item_parents'] => '',
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));
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unset($item_data[$this->table_columns['item_id']]);
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$sql = 'INSERT INTO ' . $this->table_name . ' ' . $this->db->sql_build_array('INSERT', $item_data);
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$this->db->sql_query($sql);
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$item_data[$this->table_columns['item_id']] = (int) $this->db->sql_nextid();
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$item = new $this->item_class($item_data);
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return array_merge($item_data, $this->add($item));
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}
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/**
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* @inheritdoc
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*/
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public function add(phpbb_nestedset_item_interface $item)
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{
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$sql = 'SELECT MAX(' . $this->table_columns['right_id'] . ') AS ' . $this->table_columns['right_id'] . '
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FROM ' . $this->table_name . '
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' . $this->get_sql_where('WHERE');
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$result = $this->db->sql_query($sql);
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$current_max_right_id = (int) $this->db->sql_fetchfield($this->table_columns['right_id']);
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$this->db->sql_freeresult($result);
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$update_item_data = array(
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$this->table_columns['parent_id'] => 0,
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$this->table_columns['left_id'] => $current_max_right_id + 1,
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$this->table_columns['right_id'] => $current_max_right_id + 2,
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$this->table_columns['item_parents'] => '',
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);
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$sql = 'UPDATE ' . $this->table_name . '
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SET ' . $this->db->sql_build_array('UPDATE', $update_item_data) . '
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WHERE ' . $this->table_columns['item_id'] . ' = ' . $item->get_item_id();
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$this->db->sql_query($sql);
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return $update_item_data;
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}
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/**
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* @inheritdoc
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*/
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public function remove(phpbb_nestedset_item_interface $item)
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{
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if ($item->has_children())
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{
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$items = array_keys($this->get_branch_data($item, 'children'));
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}
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else
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{
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$items = array($item->get_item_id());
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}
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$this->remove_subset($items, $item);
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return $items;
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}
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/**
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* @inheritdoc
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*/
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public function delete(phpbb_nestedset_item_interface $item)
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{
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$removed_items = $this->remove($item);
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$sql = 'DELETE FROM ' . $this->table_name . '
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WHERE ' . $this->db->sql_in_set($this->table_columns['item_id'], $removed_items) . '
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' . $this->get_sql_where('AND');
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$this->db->sql_query($sql);
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return $removed_items;
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}
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/**
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* @inheritdoc
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*/
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public function move(phpbb_nestedset_item_interface $item, $delta)
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{
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if ($delta == 0)
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{
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return false;
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}
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$action = ($delta > 0) ? 'move_up' : 'move_down';
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$delta = abs($delta);
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/**
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* Fetch all the siblings between the item's current spot
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* and where we want to move it to. If there are less than $delta
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* siblings between the current spot and the target then the
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* item will move as far as possible
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*/
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$sql = 'SELECT ' . implode(', ', $this->table_columns) . '
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FROM ' . $this->table_name . '
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WHERE ' . $this->table_columns['parent_id'] . ' = ' . $item->get_parent_id() . '
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' . $this->get_sql_where() . '
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AND ';
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if ($action == 'move_up')
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{
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$sql .= $this->table_columns['right_id'] . ' < ' . $item->get_right_id() . ' ORDER BY ' . $this->table_columns['right_id'] . ' DESC';
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}
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else
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{
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$sql .= $this->table_columns['left_id'] . ' > ' . $item->get_left_id() . ' ORDER BY ' . $this->table_columns['left_id'] . ' ASC';
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}
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$result = $this->db->sql_query_limit($sql, $delta);
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$target = null;
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while ($row = $this->db->sql_fetchrow($result))
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{
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$target = new $this->item_class($row);
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}
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$this->db->sql_freeresult($result);
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if (is_null($target))
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{
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// The item is already on top or bottom
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return false;
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}
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/**
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* $left_id and $right_id define the scope of the items that are affected by the move.
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* $diff_up and $diff_down are the values to substract or add to each item's left_id
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* and right_id in order to move them up or down.
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* $move_up_left and $move_up_right define the scope of the items that are moving
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* up. Other items in the scope of ($left_id, $right_id) are considered to move down.
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*/
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if ($action == 'move_up')
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{
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$left_id = $target->get_left_id();
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$right_id = $item->get_right_id();
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$diff_up = $item->get_left_id() - $target->get_left_id();
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$diff_down = $item->get_right_id() + 1 - $item->get_left_id();
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$move_up_left = $item->get_left_id();
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$move_up_right = $item->get_right_id();
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}
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else
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{
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$left_id = $item->get_left_id();
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$right_id = $target->get_right_id();
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$diff_up = $item->get_right_id() + 1 - $item->get_left_id();
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$diff_down = $target->get_right_id() - $item->get_right_id();
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$move_up_left = $item->get_right_id() + 1;
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$move_up_right = $target->get_right_id();
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}
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// Now do the dirty job
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$sql = 'UPDATE ' . $this->table_name . '
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SET ' . $this->table_columns['left_id'] . ' = ' . $this->table_columns['left_id'] . ' + CASE
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WHEN ' . $this->table_columns['left_id'] . " BETWEEN {$move_up_left} AND {$move_up_right} THEN -{$diff_up}
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ELSE {$diff_down}
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END,
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" . $this->table_columns['right_id'] . ' = ' . $this->table_columns['right_id'] . ' + CASE
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WHEN ' . $this->table_columns['right_id'] . " BETWEEN {$move_up_left} AND {$move_up_right} THEN -{$diff_up}
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ELSE {$diff_down}
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END,
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" . $this->table_columns['item_parents'] . " = ''
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WHERE
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" . $this->table_columns['left_id'] . " BETWEEN {$left_id} AND {$right_id}
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AND " . $this->table_columns['right_id'] . " BETWEEN {$left_id} AND {$right_id}
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" . $this->get_sql_where();
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$this->db->sql_query($sql);
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return true;
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}
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/**
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* @inheritdoc
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*/
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public function move_down(phpbb_nestedset_item_interface $item)
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{
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return $this->move($item, -1);
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}
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/**
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* @inheritdoc
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*/
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public function move_up(phpbb_nestedset_item_interface $item)
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{
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return $this->move($item, 1);
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}
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/**
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* @inheritdoc
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*/
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public function move_children(phpbb_nestedset_item_interface $current_parent, phpbb_nestedset_item_interface $new_parent)
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{
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if (!$current_parent->has_children() || !$current_parent->get_item_id() || $current_parent->get_item_id() == $new_parent->get_item_id())
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{
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return false;
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}
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$move_items = array_keys($this->get_branch_data($current_parent, 'children', true, false));
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if (in_array($new_parent->get_item_id(), $move_items))
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{
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throw new phpbb_nestedset_exception('INVALID_PARENT');
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}
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$diff = sizeof($move_items) * 2;
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$sql_exclude_moved_items = $this->db->sql_in_set($this->table_columns['item_id'], $move_items, true);
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$this->db->sql_transaction('begin');
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$this->remove_subset($move_items, $current_parent, false);
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if ($new_parent->get_item_id())
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{
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// Retrieve new-parent again, it may have been changed...
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$sql = 'SELECT *
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FROM ' . $this->table_name . '
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WHERE ' . $this->table_columns['item_id'] . ' = ' . $new_parent->get_item_id();
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$result = $this->db->sql_query($sql);
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$parent_data = $this->db->sql_fetchrow($result);
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$this->db->sql_freeresult($result);
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if (!$parent_data)
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{
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$this->db->sql_transaction('rollback');
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throw new phpbb_nestedset_exception('INVALID_PARENT');
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}
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$new_parent = new $this->item_class($parent_data);
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$new_right_id = $this->prepare_adding_subset($move_items, $new_parent);
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if ($new_right_id > $current_parent->get_right_id())
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{
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$diff = ' + ' . ($new_right_id - $current_parent->get_right_id());
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}
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else
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{
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$diff = ' - ' . abs($new_right_id - $current_parent->get_right_id());
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}
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}
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else
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{
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$sql = 'SELECT MAX(' . $this->table_columns['right_id'] . ') AS ' . $this->table_columns['right_id'] . '
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FROM ' . $this->table_name . '
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WHERE ' . $sql_exclude_moved_items . '
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' . $this->get_sql_where('AND');
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$result = $this->db->sql_query($sql);
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$row = $this->db->sql_fetchrow($result);
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$this->db->sql_freeresult($result);
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$diff = ' + ' . ($row[$this->table_columns['right_id']] - $current_parent->get_left_id());
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}
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$sql = 'UPDATE ' . $this->table_name . '
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SET ' . $this->table_columns['left_id'] . ' = ' . $this->table_columns['left_id'] . $diff . ',
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' . $this->table_columns['right_id'] . ' = ' . $this->table_columns['right_id'] . $diff . ',
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' . $this->table_columns['parent_id'] . ' = ' . $this->db->sql_case($this->table_columns['parent_id'] . ' = ' . $current_parent->get_item_id(), $new_parent->get_item_id(), $this->table_columns['parent_id']) . ',
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' . $this->table_columns['item_parents'] . " = ''
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WHERE " . $this->db->sql_in_set($this->table_columns['item_id'], $move_items) . '
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' . $this->get_sql_where('AND');
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$this->db->sql_query($sql);
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$this->db->sql_transaction('commit');
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return true;
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}
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/**
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* @inheritdoc
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*/
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public function set_parent(phpbb_nestedset_item_interface $item, phpbb_nestedset_item_interface $new_parent)
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{
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$move_items = array_keys($this->get_branch_data($item, 'children'));
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if (in_array($new_parent->get_item_id(), $move_items))
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{
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throw new phpbb_nestedset_exception('INVALID_PARENT');
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}
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$diff = sizeof($move_items) * 2;
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$sql_exclude_moved_items = $this->db->sql_in_set($this->table_columns['item_id'], $move_items, true);
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$this->db->sql_transaction('begin');
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$this->remove_subset($move_items, $item, false);
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if ($new_parent->get_item_id())
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{
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// Retrieve new-parent again, it may have been changed...
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$sql = 'SELECT *
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FROM ' . $this->table_name . '
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WHERE ' . $this->table_columns['item_id'] . ' = ' . $new_parent->get_item_id();
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$result = $this->db->sql_query($sql);
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$parent_data = $this->db->sql_fetchrow($result);
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$this->db->sql_freeresult($result);
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if (!$parent_data)
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{
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$this->db->sql_transaction('rollback');
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throw new phpbb_nestedset_exception('INVALID_PARENT');
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}
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$new_parent = new $this->item_class($parent_data);
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$new_right_id = $this->prepare_adding_subset($move_items, $new_parent);
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if ($new_right_id > $item->get_right_id())
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{
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$diff = ' + ' . ($new_right_id - $item->get_right_id() - 1);
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}
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else
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{
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$diff = ' - ' . abs($new_right_id - $item->get_right_id() - 1);
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}
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}
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else
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{
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$sql = 'SELECT MAX(' . $this->table_columns['right_id'] . ') AS ' . $this->table_columns['right_id'] . '
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FROM ' . $this->table_name . '
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WHERE ' . $sql_exclude_moved_items . '
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' . $this->get_sql_where('AND');
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$result = $this->db->sql_query($sql);
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$row = $this->db->sql_fetchrow($result);
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$this->db->sql_freeresult($result);
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$diff = ' + ' . ($row[$this->table_columns['right_id']] - $item->get_left_id() + 1);
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}
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$sql = 'UPDATE ' . $this->table_name . '
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SET ' . $this->table_columns['left_id'] . ' = ' . $this->table_columns['left_id'] . $diff . ',
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' . $this->table_columns['right_id'] . ' = ' . $this->table_columns['right_id'] . $diff . ',
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' . $this->table_columns['parent_id'] . ' = ' . $this->db->sql_case($this->table_columns['item_id'] . ' = ' . $item->get_item_id(), $new_parent->get_item_id(), $this->table_columns['parent_id']) . ',
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' . $this->table_columns['item_parents'] . " = ''
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WHERE " . $this->db->sql_in_set($this->table_columns['item_id'], $move_items) . '
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' . $this->get_sql_where('AND');
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$this->db->sql_query($sql);
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$this->db->sql_transaction('commit');
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return true;
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}
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/**
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* @inheritdoc
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*/
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public function get_branch_data(phpbb_nestedset_item_interface $item, $type = 'all', $order_desc = true, $include_item = true)
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{
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switch ($type)
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{
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case 'parents':
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$condition = 'i1.' . $this->table_columns['left_id'] . ' BETWEEN i2.' . $this->table_columns['left_id'] . ' AND i2.' . $this->table_columns['right_id'] . '';
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break;
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case 'children':
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$condition = 'i2.' . $this->table_columns['left_id'] . ' BETWEEN i1.' . $this->table_columns['left_id'] . ' AND i1.' . $this->table_columns['right_id'] . '';
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break;
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default:
|
||||
$condition = 'i2.' . $this->table_columns['left_id'] . ' BETWEEN i1.' . $this->table_columns['left_id'] . ' AND i1.' . $this->table_columns['right_id'] . '
|
||||
OR i1.' . $this->table_columns['left_id'] . ' BETWEEN i2.' . $this->table_columns['left_id'] . ' AND i2.' . $this->table_columns['right_id'];
|
||||
break;
|
||||
}
|
||||
|
||||
$rows = array();
|
||||
|
||||
$sql = 'SELECT i2.*
|
||||
FROM ' . $this->table_name . ' i1
|
||||
LEFT JOIN ' . $this->table_name . " i2
|
||||
ON (($condition) " . $this->get_sql_where('AND', 'i2.') . ')
|
||||
WHERE i1.' . $this->table_columns['item_id'] . ' = ' . $item->get_item_id() . '
|
||||
' . $this->get_sql_where('AND', 'i1.') . '
|
||||
ORDER BY i2.' . $this->table_columns['left_id'] . ' ' . ($order_desc ? 'ASC' : 'DESC');
|
||||
$result = $this->db->sql_query($sql);
|
||||
|
||||
while ($row = $this->db->sql_fetchrow($result))
|
||||
{
|
||||
if (!$include_item && $item->get_item_id() === (int) $row[$this->table_columns['item_id']])
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
$rows[$row[$this->table_columns['item_id']]] = $row;
|
||||
}
|
||||
$this->db->sql_freeresult($result);
|
||||
|
||||
return $rows;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get base information of parent items
|
||||
*
|
||||
* Data is cached in the item_parents column in the item table
|
||||
*
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function get_parent_data(phpbb_nestedset_item_interface $item)
|
||||
{
|
||||
$parents = array();
|
||||
if ($item->get_parent_id())
|
||||
{
|
||||
if (!$item->get_item_parents_data())
|
||||
{
|
||||
$sql = 'SELECT ' . implode(', ', $this->item_basic_data) . '
|
||||
FROM ' . $this->table_name . '
|
||||
WHERE ' . $this->table_columns['left_id'] . ' < ' . $item->get_left_id() . '
|
||||
AND ' . $this->table_columns['right_id'] . ' > ' . $item->get_right_id() . '
|
||||
' . $this->get_sql_where('AND') . '
|
||||
ORDER BY ' . $this->table_columns['left_id'] . ' ASC';
|
||||
$result = $this->db->sql_query($sql);
|
||||
|
||||
while ($row = $this->db->sql_fetchrow($result))
|
||||
{
|
||||
$parents[$row[$this->table_columns['item_id']]] = $row;
|
||||
}
|
||||
$this->db->sql_freeresult($result);
|
||||
|
||||
$item_parents = serialize($parents);
|
||||
|
||||
$sql = 'UPDATE ' . $this->table_name . '
|
||||
SET ' . $this->table_columns['item_parents'] . " = '" . $this->db->sql_escape($item_parents) . "'
|
||||
WHERE " . $this->table_columns['parent_id'] . ' = ' . $item->get_parent_id();
|
||||
$this->db->sql_query($sql);
|
||||
}
|
||||
else
|
||||
{
|
||||
$parents = unserialize($item->get_item_parents_data());
|
||||
}
|
||||
}
|
||||
|
||||
return $parents;
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove a subset from the nested set
|
||||
*
|
||||
* @param array $subset_items Subset of items to remove
|
||||
* @param phpbb_nestedset_item_interface $bounding_item Item containing the right bound of the subset
|
||||
* @param bool $set_subset_zero Should the parent, left and right id of the item be set to 0, or kept unchanged?
|
||||
* @return null
|
||||
*/
|
||||
protected function remove_subset(array $subset_items, phpbb_nestedset_item_interface $bounding_item, $set_subset_zero = true)
|
||||
{
|
||||
$diff = sizeof($subset_items) * 2;
|
||||
$sql_subset_items = $this->db->sql_in_set($this->table_columns['item_id'], $subset_items);
|
||||
$sql_not_subset_items = $this->db->sql_in_set($this->table_columns['item_id'], $subset_items, true);
|
||||
|
||||
$sql_is_parent = $this->table_columns['left_id'] . ' <= ' . $bounding_item->get_right_id() . '
|
||||
AND ' . $this->table_columns['right_id'] . ' >= ' . $bounding_item->get_right_id();
|
||||
|
||||
$sql_is_right = $this->table_columns['left_id'] . ' > ' . $bounding_item->get_right_id();
|
||||
|
||||
$set_left_id = $this->db->sql_case($sql_is_right, $this->table_columns['left_id'] . ' - ' . $diff, $this->table_columns['left_id']);
|
||||
$set_right_id = $this->db->sql_case($sql_is_parent . ' OR ' . $sql_is_right, $this->table_columns['right_id'] . ' - ' . $diff, $this->table_columns['right_id']);
|
||||
|
||||
if ($set_subset_zero)
|
||||
{
|
||||
$set_left_id = $this->db->sql_case($sql_subset_items, 0, $set_left_id);
|
||||
$set_right_id = $this->db->sql_case($sql_subset_items, 0, $set_right_id);
|
||||
}
|
||||
|
||||
$sql = 'UPDATE ' . $this->table_name . '
|
||||
SET ' . $this->table_columns['left_id'] . ' = ' . $set_left_id . ',
|
||||
' . $this->table_columns['right_id'] . ' = ' . $set_right_id . ',
|
||||
' . (($set_subset_zero) ? $this->table_columns['parent_id'] . ' = ' . $this->db->sql_case($sql_subset_items, 0, $this->table_columns['parent_id']) . ',' : '') . '
|
||||
' . $this->table_columns['item_parents'] . " = ''
|
||||
" . ((!$set_subset_zero) ? ' WHERE ' . $sql_not_subset_items . ' ' . $this->get_sql_where('AND') : $this->get_sql_where('WHERE'));
|
||||
$this->db->sql_query($sql);
|
||||
}
|
||||
|
||||
/**
|
||||
* Add a subset to the nested set
|
||||
*
|
||||
* @param array $subset_items Subset of items to add
|
||||
* @param phpbb_nestedset_item_interface $new_parent Item containing the right bound of the new parent
|
||||
* @return int New right id of the parent item
|
||||
*/
|
||||
protected function prepare_adding_subset(array $subset_items, phpbb_nestedset_item_interface $new_parent)
|
||||
{
|
||||
$diff = sizeof($subset_items) * 2;
|
||||
$sql_not_subset_items = $this->db->sql_in_set($this->table_columns['item_id'], $subset_items, true);
|
||||
|
||||
$set_left_id = $this->db->sql_case($this->table_columns['left_id'] . ' > ' . $new_parent->get_right_id(), $this->table_columns['left_id'] . ' + ' . $diff, $this->table_columns['left_id']);
|
||||
$set_right_id = $this->db->sql_case($this->table_columns['right_id'] . ' >= ' . $new_parent->get_right_id(), $this->table_columns['right_id'] . ' + ' . $diff, $this->table_columns['right_id']);
|
||||
|
||||
$sql = 'UPDATE ' . $this->table_name . '
|
||||
SET ' . $this->table_columns['left_id'] . ' = ' . $set_left_id . ',
|
||||
' . $this->table_columns['right_id'] . ' = ' . $set_right_id . ',
|
||||
' . $this->table_columns['item_parents'] . " = ''
|
||||
WHERE " . $sql_not_subset_items . '
|
||||
' . $this->get_sql_where('AND');
|
||||
$this->db->sql_query($sql);
|
||||
|
||||
return $new_parent->get_right_id() + $diff;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function recalculate_nested_set($new_id, $parent_id = 0, $reset_ids = false)
|
||||
{
|
||||
if ($reset_ids)
|
||||
{
|
||||
$sql = 'UPDATE ' . $this->table_name . '
|
||||
SET ' . $this->db->sql_build_array('UPDATE', array(
|
||||
$this->table_columns['left_id'] => 0,
|
||||
$this->table_columns['right_id'] => 0,
|
||||
$this->table_columns['item_parents'] => '',
|
||||
)) . '
|
||||
' . $this->get_sql_where('WHERE');
|
||||
$this->db->sql_query($sql);
|
||||
}
|
||||
|
||||
$sql = 'SELECT *
|
||||
FROM ' . $this->table_name . '
|
||||
WHERE ' . $this->table_columns['parent_id'] . ' = ' . (int) $parent_id . '
|
||||
' . $this->get_sql_where('AND') . '
|
||||
ORDER BY ' . $this->table_columns['left_id'] . ', ' . $this->table_columns['item_id'] . ' ASC';
|
||||
$result = $this->db->sql_query($sql);
|
||||
while ($row = $this->db->sql_fetchrow($result))
|
||||
{
|
||||
// First we update the left_id for this module
|
||||
if ($row[$this->table_columns['left_id']] != $new_id)
|
||||
{
|
||||
$sql = 'UPDATE ' . $this->table_name . '
|
||||
SET ' . $this->db->sql_build_array('UPDATE', array(
|
||||
$this->table_columns['left_id'] => $new_id,
|
||||
$this->table_columns['item_parents'] => '',
|
||||
)) . '
|
||||
WHERE ' . $this->table_columns['item_id'] . ' = ' . $row[$this->table_columns['item_id']];
|
||||
$this->db->sql_query($sql);
|
||||
}
|
||||
$new_id++;
|
||||
|
||||
// Then we go through any children and update their left/right id's
|
||||
$new_id = $this->recalculate_nested_set($new_id, $row[$this->table_columns['item_id']]);
|
||||
|
||||
// Then we come back and update the right_id for this module
|
||||
if ($row[$this->table_columns['right_id']] != $new_id)
|
||||
{
|
||||
$sql = 'UPDATE ' . $this->table_name . '
|
||||
SET ' . $this->db->sql_build_array('UPDATE', array($this->table_columns['right_id'] => $new_id)) . '
|
||||
WHERE ' . $this->table_columns['item_id'] . ' = ' . $row[$this->table_columns['item_id']];
|
||||
$this->db->sql_query($sql);
|
||||
}
|
||||
$new_id++;
|
||||
}
|
||||
$this->db->sql_freeresult($result);
|
||||
|
||||
return $new_id;
|
||||
}
|
||||
}
|
82
phpBB/includes/nestedset/item/base.php
Normal file
82
phpBB/includes/nestedset/item/base.php
Normal file
|
@ -0,0 +1,82 @@
|
|||
<?php
|
||||
/**
|
||||
*
|
||||
* @package Nested Set
|
||||
* @copyright (c) 2013 phpBB Group
|
||||
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* @ignore
|
||||
*/
|
||||
if (!defined('IN_PHPBB'))
|
||||
{
|
||||
exit;
|
||||
}
|
||||
|
||||
abstract class phpbb_nestedset_item_base implements phpbb_nestedset_item_interface
|
||||
{
|
||||
/** @var int */
|
||||
protected $item_id;
|
||||
|
||||
/** @var int */
|
||||
protected $parent_id;
|
||||
|
||||
/** @var string */
|
||||
protected $item_parents_data;
|
||||
|
||||
/** @var int */
|
||||
protected $left_id;
|
||||
|
||||
/** @var int */
|
||||
protected $right_id;
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function get_item_id()
|
||||
{
|
||||
return (int) $this->item_id;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function get_parent_id()
|
||||
{
|
||||
return (int) $this->parent_id;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function get_item_parents_data()
|
||||
{
|
||||
return (string) $this->item_parents_data;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function get_left_id()
|
||||
{
|
||||
return (int) $this->left_id;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function get_right_id()
|
||||
{
|
||||
return (int) $this->right_id;
|
||||
}
|
||||
|
||||
/**
|
||||
* @inheritdoc
|
||||
*/
|
||||
public function has_children()
|
||||
{
|
||||
return $this->right_id - $this->left_id > 1;
|
||||
}
|
||||
}
|
Loading…
Add table
Reference in a new issue