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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Spiral\Database\Entities\Query; |
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use Spiral\Database\Exceptions\ResultException; |
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/** |
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* Represents simple array. |
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*/ |
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class ArrayResult extends \ArrayIterator |
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{ |
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/** |
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* @var array |
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*/ |
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private $columns = []; |
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/** |
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* Column = variable binding. |
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* |
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* @var array |
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*/ |
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private $bindings = []; |
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/** |
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* @param array $rowsets |
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*/ |
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public function __construct(array $rowsets) |
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{ |
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parent::__construct($rowsets); |
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if (count($rowsets) > 1) { |
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/* |
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* { |
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* columnA: indexA, |
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* columnB: indexB |
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* } |
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*/ |
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$this->columns = array_flip(array_keys(current($rowsets))); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function countColumns(): int |
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{ |
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return count($this->columns); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function fetch() |
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{ |
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$this->next(); |
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$values = $this->current(); |
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//Filling bindings |
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foreach ($this->bindings as $name => &$variable) { |
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$variable = $values[$name]; |
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} |
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return $values; |
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} |
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/** |
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* Bind a column value to a PHP variable. |
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* |
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* @param int|string $columnID Column number (0 - first column) |
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* @param mixed $variable |
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* |
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* @return self|$this |
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* |
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* @throws ResultException |
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*/ |
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public function bind($columnID, &$variable): ArrayResult |
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{ |
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if ($this->count() == 0) { |
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return $this; |
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} |
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if (is_numeric($columnID)) { |
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//Getting column number |
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foreach ($this->columns as $name => $index) { |
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if ($index == $columnID - 1) { |
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$this->bindings[$name] = &$variable; |
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return $this; |
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} |
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} |
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throw new ResultException("No such column #{$columnID}"); |
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} else { |
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if (!isset($this->columns[$columnID])) { |
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throw new ResultException("No such column '{$columnID}'"); |
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} |
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$this->bindings[$columnID] = &$variable; |
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} |
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return $this; |
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} |
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/** |
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* Returns a single column value from the next row of a result set. |
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* |
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* @param int $columnID Column number (0 - first column) |
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* |
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* @return mixed |
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*/ |
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public function fetchColumn($columnID = 0) |
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{ |
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$values = $this->fetch(); |
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if ($values === false) { |
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return null; |
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} |
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if (is_numeric($columnID)) { |
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if ($this->countColumns() > $columnID) { |
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throw new ResultException("No such column #{$columnID}"); |
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} |
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return array_values($values)[$columnID]; |
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} |
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if (!isset($this->columns[$columnID])) { |
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throw new ResultException("No such column '{$columnID}'"); |
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} |
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return $values[$columnID]; |
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} |
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/** |
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* @return array |
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*/ |
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public function toArray(): array |
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{ |
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return $this->fetchAll(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function fetchAll(): array |
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{ |
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$result = []; |
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while (($values = $this->fetch()) !== false) { |
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//This loop is required to make sure that bindings are set |
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$result[] = $values; |
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} |
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return $result; |
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} |
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/** |
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162
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* {@inheritdoc} |
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163
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*/ |
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164
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public function close() |
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{ |
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//Nothing to do |
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} |
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168
|
|
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} |
spiral /
components
