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<?php |
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declare(strict_types = 1); |
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namespace hanneskod\yaysondb; |
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use hanneskod\yaysondb\Expression\ExpressionInterface; |
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use hanneskod\yaysondb\Filter\CallableFilter; |
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use hanneskod\yaysondb\Filter\ExpressionFilter; |
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use hanneskod\yaysondb\Filter\FilterInterface; |
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use hanneskod\yaysondb\Filter\LimitFilter; |
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use hanneskod\yaysondb\Filter\OrderByFilter; |
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/** |
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* Basic implementation of FilterableInterface |
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*/ |
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class Filterable implements FilterableInterface |
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{ |
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/** |
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* @var \Traversable Contained set of documents |
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*/ |
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private $docs; |
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public function __construct(\Traversable $docs) |
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{ |
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$this->docs = $docs; |
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} |
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public function count(): int |
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{ |
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$count = 0; |
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foreach ($this->getIterator() as $doc) { |
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$count ++; |
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} |
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return $count; |
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} |
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public function each(callable $callable) |
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{ |
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foreach ($this as $doc) { |
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$callable($doc); |
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} |
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} |
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public function filter(FilterInterface $filter): FilterableInterface |
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{ |
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return new Filterable($filter->filter($this)); |
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} |
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public function find(ExpressionInterface $expression): FilterableInterface |
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{ |
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return $this->filter(new ExpressionFilter($expression)); |
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} |
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public function findOne(ExpressionInterface $expression): array |
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{ |
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return $this->find($expression)->first(); |
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} |
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public function first(): array |
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{ |
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foreach ($this as $doc) { |
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return (array)$doc; |
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} |
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return []; |
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} |
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public function getIterator(): \Generator |
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{ |
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foreach ($this->docs as $doc) { |
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yield $doc; |
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} |
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} |
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public function isEmpty(): bool |
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{ |
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foreach ($this as $doc) { |
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return false; |
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} |
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return true; |
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} |
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public function limit(int $count, int $offset = 0): FilterableInterface |
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{ |
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return $this->filter(new LimitFilter($count, $offset)); |
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} |
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public function orderBy(string ...$keys): FilterableInterface |
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{ |
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return $this->filter(new OrderByFilter(...$keys)); |
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} |
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public function where(callable $callable): FilterableInterface |
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{ |
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return $this->filter(new CallableFilter($callable)); |
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} |
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} |
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hanneskod /
yaysondb
