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<?php |
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namespace hamburgscleanest\DataTables\Models\DataComponents; |
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use hamburgscleanest\DataTables\Facades\SessionHelper; |
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use hamburgscleanest\DataTables\Models\Column; |
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use hamburgscleanest\DataTables\Models\DataComponent; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Support\Facades\DB; |
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/** |
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* Class Sorter |
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* @package hamburgscleanest\DataTables\Models\DataComponents |
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*/ |
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class Sorter extends DataComponent { |
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const SORTING_SEPARATOR = '~'; |
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const COLUMN_SEPARATOR = '.'; |
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/** @var array */ |
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private $_sortFields = []; |
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/** |
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* Sorter constructor. |
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* @param null|array $fields |
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* @param bool $remember |
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*/ |
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public function __construct(array $fields = null, bool $remember = false) |
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{ |
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$this->_rememberKey = 'sort'; |
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$this->_rememberState = $remember; |
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if ($fields !== null) |
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{ |
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foreach ($fields as $fieldName => $direction) |
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{ |
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if (\is_int($fieldName)) |
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{ |
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$fieldName = $direction; |
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$direction = 'asc'; |
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} |
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$this->_sortFields[$fieldName] = \mb_strtolower($direction); |
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} |
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} |
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} |
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/** |
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* Sort by this column. |
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* |
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* @param string $field |
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* @param string $direction |
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* |
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* @return Sorter |
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*/ |
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public function addField(string $field, string $direction = 'asc') : Sorter |
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{ |
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$this->_sortFields[$field] = \mb_strtolower($direction); |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function render() : string |
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{ |
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return implode(', ', \array_keys($this->_sortFields)); |
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} |
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/** |
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* @return Builder |
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*/ |
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protected function _shapeData() : Builder |
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{ |
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if (\count($this->_sortFields) > 0) |
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{ |
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foreach ($this->_sortFields as $fieldName => $direction) |
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{ |
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if ($direction === 'none') |
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{ |
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$this->removeField($fieldName); |
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continue; |
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} |
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$this->_sortField($fieldName, $direction); |
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} |
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} |
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return $this->_dataTable->query(); |
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} |
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/** |
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* Stop sorting by this column |
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* |
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* @param string $field |
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* |
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* @return Sorter |
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*/ |
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public function removeField(string $field) : Sorter |
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{ |
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if (isset($this->_sortFields[$field])) |
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{ |
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unset($this->_sortFields[$field]); |
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} |
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return $this; |
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} |
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/** |
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* @param string $fieldName |
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* @param string $direction |
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*/ |
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private function _sortField(string $fieldName, string $direction) : void |
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{ |
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/** @var Column $column */ |
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$column = \array_first($this->_dataTable->getColumns(), function($index, $column) use ($fieldName) { |
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/** @var Column $column */ |
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return $column->getKey() === $fieldName; |
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}); |
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if ($column !== null) |
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{ |
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$this->_dataTable->query()->orderBy(DB::raw($column->getAttributeName()), $direction); |
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$this->_addGroupingForAggregate($column); |
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} |
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} |
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/** |
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* @param Column $column |
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*/ |
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private function _addGroupingForAggregate(Column $column) : void |
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{ |
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$relation = $column->getRelation(); |
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if ($relation === null || $relation->aggregate === 'first') |
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{ |
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return; |
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} |
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$this->_dataTable->query()->groupBy($relation->name . '.' . $column->getName()); |
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} |
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protected function _readFromSession() : void |
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{ |
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$this->_sortFields = (array) SessionHelper::getState($this->_rememberKey, []); |
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} |
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protected function _storeInSession() : void |
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{ |
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SessionHelper::saveState($this->_rememberKey, $this->_sortFields); |
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} |
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protected function _afterInit() : void |
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{ |
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/** @var string $sortFields */ |
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$sortFields = \request()->get('sort'); |
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if (empty($sortFields)) |
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{ |
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return; |
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} |
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$this->_initFields($sortFields); |
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} |
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/** |
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* @param string $fields |
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*/ |
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private function _initFields(string $fields) : void |
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{ |
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$this->_sortFields = []; |
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foreach (\explode(self::COLUMN_SEPARATOR, $fields) as $field) |
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{ |
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$sortParts = \explode(self::SORTING_SEPARATOR, $field); |
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if (\count($sortParts) === 1) |
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{ |
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$sortParts[1] = 'asc'; |
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} |
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if ($sortParts[1] === 'none') |
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{ |
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SessionHelper::removeState($this->_rememberKey . '.' . $sortParts[0]); |
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} |
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$this->_sortFields[$sortParts[0]] = $sortParts[1]; |
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} |
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} |
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} |
hamburgscleanest /
data-tables
