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<?php |
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/** |
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* This file is part of byrokrat\giroapp. |
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* |
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* byrokrat\giroapp is free software: you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* byrokrat\giroapp is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with byrokrat\giroapp. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* Copyright 2016-21 Hannes Forsgård |
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*/ |
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declare(strict_types=1); |
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namespace byrokrat\giroapp\Utils; |
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use byrokrat\giroapp\Exception\UnknownIdentifierException; |
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trait CollectionTrait |
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{ |
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/** @var array<string, mixed> */ |
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private $items = []; |
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abstract protected function describeItem(): string; |
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/** |
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* @param mixed $item |
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*/ |
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protected function addItem(string $key, $item): void |
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{ |
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$this->items[$key] = $item; |
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} |
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protected function hasItem(string $key): bool |
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{ |
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return isset($this->items[$key]); |
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} |
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/** |
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* @return mixed |
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*/ |
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protected function getItem(string $key) |
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{ |
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if (!$this->hasItem($key)) { |
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throw new UnknownIdentifierException(sprintf( |
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"%s '%s' does not exist", |
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$this->describeItem(), |
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$key |
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)); |
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} |
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return $this->items[$key]; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getItemKeys(): array |
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{ |
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return array_filter(array_keys($this->items)); |
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} |
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/** |
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* @return mixed[] |
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*/ |
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public function getItems(): array |
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{ |
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return $this->items; |
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} |
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} |
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