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<?php |
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/** |
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* This file is part of the O2System PHP Framework package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @author Steeve Andrian Salim |
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* @copyright Copyright (c) Steeve Andrian Salim |
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*/ |
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// ------------------------------------------------------------------------ |
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namespace O2System\Framework\Models\Sql\Traits; |
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// ------------------------------------------------------------------------ |
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/** |
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* Class HierarchicalTrait |
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* |
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* @package O2System\Framework\Models\Sql\Traits |
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*/ |
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trait HierarchicalTrait |
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{ |
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/** |
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* Parent Key Field |
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* |
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* @access public |
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* @type string |
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*/ |
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public $parentKey = 'id_parent'; |
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/** |
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* Hierarchical Enabled Flag |
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* |
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* @access protected |
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* @type bool |
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*/ |
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protected $hierarchical = true; |
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/** |
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* Rebuild Tree |
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* |
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* Rebuild self hierarchical table |
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* |
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* @access public |
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* |
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* @param string $table Working database table |
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* |
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* @return int Right column value |
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*/ |
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protected function rebuildTree($idParent = 0, $left = 1, $depth = 0) |
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{ |
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ini_set('xdebug.max_nesting_level', 10000); |
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ini_set('memory_limit', '-1'); |
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if ($result = $this->qb |
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->table($this->table) |
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->select('id') |
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->where('id_parent', $idParent) |
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->orderBy('id') |
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->get()) { |
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$right = $left + 1; |
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$i = 0; |
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foreach ($result as $row) { |
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if ($i == 0) { |
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$this->qb |
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->from($this->table) |
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->where('id', $row->id) |
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->update($update = [ |
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'record_left' => $left, |
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'record_right' => $right, |
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'record_depth' => $depth, |
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]); |
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} else { |
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$this->qb |
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->from($this->table) |
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->where('id', $row->id) |
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->update($update = [ |
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'record_left' => $left = $right + 1, |
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'record_right' => $right = $left + 1, |
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'record_depth' => $depth, |
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]); |
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} |
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$update[ 'id' ] = $row->id; |
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if ($this->hasChilds($row->id)) { |
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$right = $this->rebuildTree($row->id, $right, $depth + 1); |
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$this->qb |
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->from($this->table) |
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->where('id', $row->id) |
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->update($update = [ |
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'record_right' => $right, |
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]); |
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$update[ 'id' ] = $row->id; |
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} |
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$i++; |
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} |
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} |
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return $right + 1; |
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} |
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// ------------------------------------------------------------------------ |
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/** |
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* Has Childs |
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* |
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* Check if there is a child rows |
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* |
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* @param string $table Working database table |
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* |
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* @access public |
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* @return bool |
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*/ |
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protected function hasChilds($idParent) |
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{ |
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if ($result = $this->qb |
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->table($this->table) |
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->select('id') |
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->where('id_parent', $idParent) |
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->get()) { |
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return (bool)($result->count() == 0 ? false : true); |
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} |
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return false; |
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} |
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// ------------------------------------------------------------------------ |
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/** |
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* Find Parents |
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* |
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* Retreive parents of a record |
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* |
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* @param numeric $id Record ID |
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* |
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* @access public |
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* @return array |
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*/ |
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protected function getParents($id, &$parents = []) |
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{ |
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if ($result = $this->qb |
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->from($this->table) |
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->whereIn('id', $this->qb |
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->subQuery() |
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->from($this->table) |
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->select('id_parent') |
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->where('id', $id) |
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) |
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->get()) { |
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if ($result->count()) { |
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$parents[] = $row = $result->first(); |
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if ($this->hasParent($row->id_parent)) { |
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$this->getParents($row->id, $parents); |
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} |
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} |
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} |
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return array_reverse($parents); |
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} |
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protected function hasParent($idParent) |
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{ |
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if ($result = $this->qb |
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->table($this->table) |
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->select('id') |
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->where('id', $idParent) |
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->get()) { |
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return (bool)($result->count() == 0 ? false : true); |
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} |
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return false; |
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} |
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// ------------------------------------------------------------------------ |
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/** |
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* Find Childs |
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* |
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* Retreive all childs |
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* |
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* @param numeric $idParent Parent ID |
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* |
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* @access public |
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* @return array |
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*/ |
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protected function getChilds($idParent) |
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{ |
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$childs = []; |
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if($result = $this->qb |
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->table($this->table) |
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->where('id_parent', $idParent) |
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->get()) { |
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foreach ($result as $row) { |
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$childs[] = $row; |
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if ($this->hasChild($row->id)) { |
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$row->childs = $this->getChilds($row->id); |
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} |
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} |
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} |
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return $childs; |
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} |
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// ------------------------------------------------------------------------ |
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/** |
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* Count Childs |
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* |
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* Num childs of a record |
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* |
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* @param numeric $idParent Record Parent ID |
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* |
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* @access public |
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* @return bool |
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*/ |
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protected function getNumChilds($idParent) |
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{ |
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if($result = $this->qb |
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->table($this->table) |
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->select('id') |
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->where('id_parent', $idParent) |
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->get()) { |
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return $result->count(); |
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} |
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return 0; |
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} |
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} |
o2system /
framework
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