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<?php |
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namespace TelegramBot\Api\Collection; |
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use TelegramBot\Api\Types\InputMedia\InputMedia; |
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/** |
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* Class Collection |
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*/ |
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class Collection extends \ArrayObject |
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{ |
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/** |
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* @var int Max items count, if set 0 - unlimited |
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*/ |
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protected $maxCount = 0; |
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/** |
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* @param CollectionItemInterface[] $items |
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*/ |
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public function __construct(array $items = []) |
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{ |
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parent::__construct($items); |
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} |
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/** |
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* @param CollectionItemInterface $item |
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* @param mixed $key |
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* @return void |
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* @throws ReachedMaxSizeException |
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* @throws KeyHasUseException |
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*/ |
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public function addItem(CollectionItemInterface $item, $key = null) |
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{ |
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if ($this->maxCount > 0 && $this->count() + 1 > $this->maxCount) { |
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throw new ReachedMaxSizeException("Maximum collection items count reached. Max size: {$this->maxCount}"); |
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} |
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if ($key == null) { |
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$this->append($item); |
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} else { |
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if ($this->offsetExists($key)) { |
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throw new KeyHasUseException("Key $key already in use."); |
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} |
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$this->offsetSet($key, $item); |
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} |
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} |
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/** |
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* @param $key |
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* @throws KeyInvalidException |
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* @return void |
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*/ |
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public function deleteItem($key) |
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{ |
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$this->checkItemKey($key); |
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$this->offsetUnset($key); |
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} |
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/** |
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* @param $key |
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* @return InputMedia |
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* @return CollectionItemInterface |
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* @throws KeyInvalidException |
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*/ |
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public function getItem($key) |
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{ |
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$this->checkItemKey($key); |
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return $this->offsetGet($key); |
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} |
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/** |
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* @param bool $inner |
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* @return array|string |
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*/ |
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public function toJson($inner = false) |
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{ |
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$output = []; |
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foreach ($this as $item) { |
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$output[] = $item->toJson(true); |
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} |
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return $inner === false ? json_encode($output) : $output; |
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} |
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/** |
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* @param int $maxCount |
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* @return void |
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*/ |
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public function setMaxCount($maxCount) |
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{ |
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$this->maxCount = $maxCount; |
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} |
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/** |
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* @param $key |
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* @throws KeyInvalidException |
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*/ |
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private function checkItemKey($key) |
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{ |
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if (!$this->offsetExists($key)) { |
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throw new KeyInvalidException("Invalid key $key."); |
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} |
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} |
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} |
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TelegramBot /
Api
