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<?php namespace Neomerx\JsonApi\Encoder\Parameters; |
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/** |
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* Copyright 2015 [email protected] (www.neomerx.com) |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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use \Neomerx\JsonApi\Factories\Exceptions; |
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use \Neomerx\JsonApi\Contracts\Encoder\Parameters\SortParameterInterface; |
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/** |
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* @package Neomerx\JsonApi |
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*/ |
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class SortParameter implements SortParameterInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private $sortField; |
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/** |
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* @var bool |
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*/ |
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private $isAscending; |
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/** |
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* @param string $sortField |
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* @param bool $isAscending |
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*/ |
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public function __construct($sortField, $isAscending) |
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{ |
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is_string($sortField) === true ?: Exceptions::throwInvalidArgument('sortField', $sortField); |
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is_bool($isAscending) === true ?: Exceptions::throwInvalidArgument('isAscending', $isAscending); |
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$this->sortField = $sortField; |
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$this->isAscending = $isAscending; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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$prefix = $this->isAscending() ? '' : '-'; |
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return $prefix . $this->getField(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getField() |
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{ |
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return $this->sortField; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function isAscending() |
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{ |
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return $this->isAscending; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function isDescending() |
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{ |
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return !$this->isAscending; |
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} |
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} |
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neomerx /
json-api
