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<?php |
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namespace Nayjest\Grids; |
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use Illuminate\Database\Eloquent\Builder; |
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use Event; |
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use Illuminate\Foundation\Application; |
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use Illuminate\Support\Collection; |
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class EloquentDataProvider extends DataProvider |
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{ |
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protected $collection; |
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protected $paginator; |
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/** @var $iterator \ArrayIterator */ |
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protected $iterator; |
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/** |
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* Constructor. |
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* |
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* @param Builder $src |
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*/ |
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public function __construct(Builder $src) |
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{ |
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parent::__construct($src); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function reset() |
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{ |
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$this->getIterator()->rewind(); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getCollection() |
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{ |
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if (!$this->collection) { |
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$paginator = $this->getPaginator(); |
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if (version_compare(Application::VERSION, '5', '<')) { |
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$this->collection = $paginator->getCollection(); |
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} else { |
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$this->collection = Collection::make( |
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$this->getPaginator()->items() |
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); |
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} |
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} |
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return $this->collection; |
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} |
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public function getPaginator() |
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{ |
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if (!$this->paginator) { |
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$this->paginator = $this->src->paginate($this->page_size); |
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} |
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return $this->paginator; |
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} |
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/** |
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* @return \Illuminate\Pagination\Factory |
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*/ |
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public function getPaginationFactory() |
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{ |
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return $this->src->getQuery()->getConnection()->getPaginator(); |
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} |
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protected function getIterator() |
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{ |
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if (!$this->iterator) { |
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$this->iterator = $this->getCollection()->getIterator(); |
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} |
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return $this->iterator; |
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} |
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/** |
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* @return Builder |
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*/ |
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public function getBuilder() |
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{ |
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return $this->src; |
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} |
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View Code Duplication |
public function getRow() |
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{ |
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if ($this->index < $this->count()) { |
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$this->index++; |
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$item = $this->iterator->current(); |
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$this->iterator->next(); |
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$row = new EloquentDataRow($item, $this->getRowId()); |
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Event::fire(self::EVENT_FETCH_ROW, [$row, $this]); |
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return $row; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count() |
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{ |
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return $this->getCollection()->count(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function orderBy($fieldName, $direction) |
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{ |
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$this->src->orderBy($fieldName, $direction); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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View Code Duplication |
public function filter($fieldName, $operator, $value) |
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{ |
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switch ($operator) { |
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case "eq": |
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$operator = '='; |
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break; |
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case "n_eq": |
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$operator = '<>'; |
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break; |
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case "gt": |
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$operator = '>'; |
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break; |
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case "lt": |
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$operator = '<'; |
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break; |
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case "ls_e": |
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$operator = '<='; |
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break; |
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case "gt_e": |
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$operator = '>='; |
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break; |
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case "in": |
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if (!is_array($value)) { |
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$operator = '='; |
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break; |
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} |
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$this->src->whereIn($fieldName, $value); |
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return $this; |
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} |
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$this->src->where($fieldName, $operator, $value); |
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return $this; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.