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<?php |
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/** |
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* @author Todd Burry <[email protected]> |
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* @copyright 2009-2017 Vanilla Forums Inc. |
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* @license MIT |
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*/ |
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namespace Garden\Db; |
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class ArraySet implements \IteratorAggregate, DatasetInterface { |
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use Utils\DatasetTrait; |
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/** |
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* @var array The internal data array. |
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*/ |
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private $data; |
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/** |
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* @var bool Indicates that the data needs to be sorted. |
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*/ |
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private $toSort = false; |
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/** |
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* Construct a new {@link ArraySet} object. |
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* |
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* @param array|\Traversable $data The initial data in the array. |
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* @param string[] The default sort order. Supply this to prevent a manual sort. |
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*/ |
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public function __construct($data = [], $order = []) { |
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$this->setData($data); |
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$this->order = $order; |
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} |
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/** |
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* Sort the internal array. |
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*/ |
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protected function sortData() { |
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$columns = $this->getOrder(); |
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$order = []; |
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foreach ($columns as $column) { |
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if ($column[0] === '-') { |
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$column = substr($column, 1); |
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$order[$column] = -1; |
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} else { |
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$order[$column] = 1; |
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} |
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} |
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$cmp = function ($a, $b) use ($order) { |
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foreach ($order as $column => $desc) { |
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$r = strnatcmp($a[$column], $b[$column]); |
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if ($r !== 0) { |
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return $r * $desc; |
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} |
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} |
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return 0; |
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}; |
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usort($this->data, $cmp); |
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} |
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/** |
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* Get the underlying data array. |
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* |
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* @return array Returns the data. |
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*/ |
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public function getData() { |
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if ($this->toSort && !empty($this->getOrder())) { |
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$this->sortData(); |
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} |
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if ($this->getLimit()) { |
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return array_slice($this->data, $this->getOffset(), $this->getLimit()); |
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} else { |
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return $this->data; |
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} |
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} |
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/** |
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* Set the underlying data array. |
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* |
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* @param array|\Traversable $data |
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* @return $this |
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*/ |
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public function setData($data) { |
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if ($data instanceof \Traversable) { |
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$this->data = iterator_to_array($data); |
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} else { |
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$this->data = $data; |
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} |
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if (!empty($this->getOrder())) { |
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$this->toSort = true; |
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} |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setOrder(...$columns) { |
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if ($columns !== $this->order) { |
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$this->toSort = true; |
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} |
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$this->order = $columns; |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count() { |
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$count = count($this->data); |
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$limit = $this->getLimit(); |
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$offset = $this->getOffset(); |
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$count = $count - $offset; |
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if ($limit > 0) { |
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$count = min($count, $limit); |
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} |
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$count = max($count, 0); |
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return $count; |
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} |
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} |
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vanilla /
garden-db
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