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<?php |
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/** |
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* |
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* @package sitemaker |
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* @copyright (c) 2013 Daniel A. (blitze) |
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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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namespace blitze\sitemaker\services\tree; |
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/** |
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* Display nested sets |
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*/ |
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abstract class display |
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{ |
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/** @var \phpbb\db\driver\driver_interface */ |
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protected $db; |
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/** @var string */ |
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protected $items_table; |
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/** @var string */ |
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protected $pk; |
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/** @var string */ |
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protected $sql_where; |
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/** @var array */ |
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protected $errors = array(); |
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/** @var array */ |
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protected $data = array(); |
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/** |
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* Construct |
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* |
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* @param \phpbb\db\driver\driver_interface $db Database connection |
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* @param string $items_table Table name |
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* @param string $pk Primary key |
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* @param string $sql_where Column restriction |
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*/ |
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public function __construct(\phpbb\db\driver\driver_interface $db, $items_table, $pk, $sql_where = '') |
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{ |
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$this->db = $db; |
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$this->pk = $pk; |
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$this->items_table = $items_table; |
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$this->sql_where = $sql_where; |
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} |
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/** |
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* Is subject node an ancestor of the object node? |
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*/ |
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public function is_in_path($object, $subject) |
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{ |
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return ($subject['left_id'] < $object['left_id'] && $subject['right_id'] > $object['right_id']) ? true : false; |
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} |
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/** |
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* Count node descendants |
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*/ |
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public function count_descendants($row) |
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{ |
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return ($row['right_id'] - $row['left_id'] - 1) / 2; |
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} |
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/** |
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* Get node row |
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*/ |
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public function get_node_info($node_id) |
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{ |
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$sql = "SELECT * |
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FROM $this->items_table |
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WHERE $this->pk = " . (int) $node_id ; |
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$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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return $row; |
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} |
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/** |
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* Get Tree Query |
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* |
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* @param integer $start Starting level |
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* @param integer $level Max depth |
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* @param array $sql_array Array of elements to merge into query |
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* array( |
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* 'SELECT' => array('p.*'), |
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* 'WHERE' => array('p.post_id = 2'), |
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* ) |
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* @return string The sql query |
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*/ |
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public function qet_tree_sql($start = 0, $level = 0, $sql_array = array()) |
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{ |
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$sql_array = array_merge_recursive( |
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array( |
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'SELECT' => array('t.*'), |
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'FROM' => array( |
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$this->items_table => ' t' |
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), |
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'WHERE' => array( |
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't.depth ' . (($level) ? " BETWEEN $start AND " . ($start + $level) : ' >= ' . $start), |
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(($this->sql_where) ? 't.' . $this->sql_where : ''), |
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), |
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'ORDER_BY' => 't.left_id ASC', |
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), |
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$sql_array |
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); |
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$sql_array['SELECT'] = join(', ', array_filter($sql_array['SELECT'])); |
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$sql_array['WHERE'] = join(' AND ', array_filter($sql_array['WHERE'])); |
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return $this->db->sql_build_query('SELECT', $sql_array); |
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} |
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public function get_tree_array($start = 0, $level = 0, $sql_array = array()) |
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{ |
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$sql = $this->qet_tree_sql($start, $level, $sql_array); |
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$result = $this->db->sql_query($sql); |
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$data = array(); |
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while ($row = $this->db->sql_fetchrow($result)) |
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{ |
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$data[$row[$this->pk]] = $row; |
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} |
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$this->db->sql_freeresult($result); |
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return $data; |
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} |
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public function display_list(array $data, \phpbb\template\twig\twig &$template, $handle = 'tree') |
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{ |
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$prev_depth = 0; |
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$parental_depth = array(0 => -1); |
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$data = array_values($data); |
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for ($i = 0, $size = sizeof($data); $i < $size; $i++) |
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{ |
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$row = $data[$i]; |
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$this_depth = $parental_depth[$row['parent_id']] + 1; |
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$repeat = abs($prev_depth - $this_depth); |
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$tpl_data = array( |
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'PREV_DEPTH' => $prev_depth, |
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'THIS_DEPTH' => $this_depth, |
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'NUM_KIDS' => $this->count_descendants($row), |
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); |
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$template->assign_block_vars($handle, array_merge($tpl_data, array_change_key_case($row, CASE_UPPER))); |
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for ($j = 0; $j < $repeat; $j++) |
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{ |
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$template->assign_block_vars($handle . '.close', array()); |
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} |
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$prev_depth = $this_depth; |
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$parental_depth[$row[$this->pk]] = $this_depth; |
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} |
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for ($i = 0; $i < $prev_depth; $i++) |
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{ |
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$template->assign_block_vars('close_' . $handle, array()); |
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} |
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} |
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/** |
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* Get tree as form options or data |
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* |
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* @param array $db_data Raw tree data from database |
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* @param string $title_column Database column name to use as label/title for each item |
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* @param array $selected_ids Array of selected items |
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* @param string $return_mode options | data |
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* @param string $pad_with Character used to denote nesting |
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* |
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* @return mixed Returns array of padded titles or html string of options depending on $return_mode |
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*/ |
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public function display_options($db_data, $title_column, $selected_ids = array(), $return_mode = 'options', $pad_with = ' ') |
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{ |
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$right = 0; |
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$padding = ''; |
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$return_options = ''; |
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$return_data = array(); |
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$padding_store = array('0' => ''); |
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$db_data = array_values($db_data); |
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for ($i = 0, $size = sizeof($db_data); $i < $size; $i++) |
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{ |
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$row = $db_data[$i]; |
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if ($row['left_id'] < $right) |
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{ |
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$padding .= $pad_with; |
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$padding_store[$row['parent_id']] = $padding; |
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} |
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else if ($row['left_id'] > $right + 1) |
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{ |
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$padding = (isset($padding_store[$row['parent_id']])) ? $padding_store[$row['parent_id']] : ''; |
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} |
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$right = $row['right_id']; |
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$title = $padding . '├─ ' . $row[$title_column]; |
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$selected = (in_array($row[$this->pk], $selected_ids)) ? ' selected="selected' : ''; |
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$return_options .= '<option value="' . $row[$this->pk] . '"' . $selected . '>' . $title . '</option>'; |
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$return_data[$row[$this->pk]] = $title; |
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} |
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return ($return_mode == 'options') ? $return_options : $return_data; |
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} |
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} |
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blitze /
phpBB-ext-sitemaker
