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<?php declare(strict_types=1); |
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namespace Igni\Storage\Mapping\Collection; |
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use Iterator; |
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use OutOfBoundsException; |
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class Collection implements \Igni\Storage\Mapping\Collection |
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{ |
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protected $length = 0; |
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protected $current; |
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protected $index = 0; |
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protected $persisted; |
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protected $items = []; |
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protected $removed = []; |
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protected $added = []; |
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public function __construct(Iterator $cursor) |
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{ |
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$this->items = iterator_to_array($cursor); |
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$this->persisted = $this->items; |
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$this->length = count($this->items); |
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} |
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public function add($item): bool |
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{ |
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$this->items[] = $item; |
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$this->length++; |
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$this->index = 0; |
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return true; |
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} |
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public function remove($item): bool |
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{ |
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if (!$this->contains($item)) { |
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return false; |
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} |
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$this->removed[] = $item; |
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array_splice($array, 1, 1); |
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$this->length = count($this->items); |
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$this->index = 0; |
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return true; |
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} |
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public function contains($item): bool |
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{ |
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return in_array($item, $this->items); |
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} |
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public function clear(): void |
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{ |
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$this->items = []; |
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$this->length = 0; |
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} |
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public function reset(): void |
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{ |
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$this->items = $this->persisted; |
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$this->length = count($this->items); |
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$this->index = 0; |
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$this->added = []; |
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$this->removed = []; |
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} |
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public function first() |
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{ |
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$this->index = 0; |
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return $this->at($this->index); |
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} |
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public function last() |
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{ |
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$this->index = $this->length - 1; |
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return $this->current(); |
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} |
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public function at(int $offset) |
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{ |
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if ($offset < $this->length) { |
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return $this->items[$offset]; |
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} |
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throw new OutOfBoundsException("Invalid offset: ${offset}"); |
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} |
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public function current() |
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{ |
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return $this->at($this->index); |
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} |
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public function next(): void |
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{ |
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$this->index++; |
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} |
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public function previous(): void |
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{ |
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if ($this->index > 0) { |
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$this->index--; |
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} |
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} |
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public function key(): int |
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{ |
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return $this->index; |
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} |
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public function valid(): bool |
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{ |
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if ($this->index < $this->length) { |
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return true; |
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} |
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return false; |
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} |
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public function rewind(): void |
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{ |
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1 |
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$this->index = 0; |
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1 |
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} |
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public function count(): int |
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{ |
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return $this->length; |
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} |
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public function toArray(): array |
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{ |
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return $this->items; |
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} |
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} |
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igniphp /
storage
