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<?php |
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/** |
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* ODataParams class |
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* |
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* This file describes the ODataParams class |
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* |
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* PHP version 5 and 7 |
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* |
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* @author Patrick Boyd / [email protected] |
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* @copyright Copyright (c) 2017, Austin Artistic Reconstruction |
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* @license http://www.apache.org/licenses/ Apache 2.0 License |
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*/ |
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/** |
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* A class representing OData style URI query string parameters. |
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* |
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* The REST APIs use OData style URI query string parameters. |
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* This class abstracts parsing of those into a more PHP friendly format. |
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*/ |
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class ODataParams |
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{ |
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/** |
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* The ODataFilter or false if not set |
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* @var false|Data\Filter |
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*/ |
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public $filter = false; |
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/** |
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* An array of properties to expand or false if not set |
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* @var false|array |
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*/ |
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public $expand = false; |
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/** |
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* An array of properties to display or false if not set |
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* @var false|array |
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*/ |
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public $select = false; |
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/** |
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* An array of properties to sort by or false if not set |
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* @var false|array |
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*/ |
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public $orderby = false; |
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/** |
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* The number of results to display or false if not set |
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* @var false|integer |
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*/ |
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public $top = false; |
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/** |
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* The number of results to skip or false if not set |
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* @var false|integer |
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*/ |
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public $skip = false; |
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/** |
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* Display the count of results |
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* @var boolean |
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*/ |
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public $count = false; |
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/** |
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* Not yet implemented |
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*/ |
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public $search = false; |
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/** |
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* Parse the parameter array into an ODataParams instance |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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public function __construct($params) |
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{ |
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$this->processFilter($params); |
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$this->processExpand($params); |
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$this->processSelect($params); |
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$this->processOrderBy($params); |
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$this->processTop($params); |
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$this->processSkip($params); |
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$this->processCount($params); |
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$this->processSearch($params); |
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} |
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/** |
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* Take the parameter array and find the Filter parameter and convert that to a \Data\Filter if present |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processFilter($params) |
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{ |
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View Code Duplication |
if(isset($params['filter'])) |
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{ |
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$this->filter = new \Data\Filter($params['filter']); |
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} |
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else if(isset($params['$filter'])) |
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{ |
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$this->filter = new \Data\Filter($params['$filter']); |
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} |
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} |
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/** |
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* Take the parameter array and find the Expand parameter and convert it to a PHP array |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processExpand($params) |
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{ |
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if(isset($params['$expand'])) |
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{ |
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$this->expand = explode(',', $params['$expand']); |
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} |
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} |
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/** |
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* Take the parameter array and find the Select parameter and convert it to a PHP array |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processSelect($params) |
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{ |
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if(isset($params['select'])) |
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{ |
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$this->select = explode(',', $params['select']); |
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} |
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else if(isset($params['$select'])) |
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{ |
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$this->select = explode(',', $params['$select']); |
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} |
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} |
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/** |
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* Take the parameter array and find the OrderBy parameter and convert it to a PHP array |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processOrderBy($params) |
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{ |
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if(isset($params['$orderby'])) |
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{ |
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$this->orderby = array(); |
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$orderby = explode(',', $params['$orderby']); |
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$count = count($orderby); |
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for($i = 0; $i < $count; $i++) |
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{ |
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$exp = explode(' ', $orderby[$i]); |
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if(count($exp) === 1) |
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{ |
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//Default to assending |
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$this->orderby[$exp[0]] = 1; |
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} |
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else |
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{ |
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switch($exp[1]) |
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{ |
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case 'asc': |
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$this->orderby[$exp[0]] = 1; |
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break; |
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case 'desc': |
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$this->orderby[$exp[0]] = -1; |
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break; |
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default: |
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throw new Exception('Unknown orderby operation'); |
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} |
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} |
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} |
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} |
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} |
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/** |
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* Take the parameter array and find the Top parameter and convert it to an int |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processTop($params) |
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{ |
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if(isset($params['$top']) && is_numeric($params['$top'])) |
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{ |
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$this->top = intval($params['$top']); |
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} |
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} |
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/** |
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* Take the parameter array and find the Skip parameter and convert it to an int |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processSkip($params) |
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{ |
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if(isset($params['$skip']) && is_numeric($params['$skip'])) |
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{ |
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$this->skip = intval($params['$skip']); |
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} |
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} |
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/** |
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* Take the parameter array and find the Count parameter and convert it to a boolean |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processCount($params) |
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{ |
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if(isset($params['$count']) && strcasecmp($params['$count'], 'true') === 0) |
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{ |
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$this->count = true; |
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} |
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} |
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/** |
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* Take the parameter array and find the Search parameter and process it |
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* |
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* @param string[] $params An key=>value array of strings representing the query string. |
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*/ |
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protected function processSearch($params) |
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{ |
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if(isset($params['$search'])) |
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{ |
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//throw new Exception('Search not yet implemented'); |
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} |
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} |
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/** |
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* Take an input array and filter the array based on the select parameter |
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* |
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* @param array $array The array to be filtered |
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* |
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* @return array The filtered array |
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*/ |
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public function filterArrayPerSelect($array) |
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{ |
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if($this->select === false) |
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{ |
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return $array; |
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} |
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$flip = array_flip($this->select); |
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$count = count($array); |
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for($i = 0; $i < $count; $i++) |
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{ |
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if(is_a($array[$i], 'SerializableObject')) |
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{ |
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$array[$i] = array_intersect_key($array[$i]->jsonSerialize(), $flip); |
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continue; |
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} |
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$array[$i] = array_intersect_key($array[$i], $flip); |
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} |
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return $array; |
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} |
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} |
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PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left.
Let’s take a look at an example:
If we look at the
getEmail()method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless:On the hand, if we look at the
setEmail(), this method _has_ side-effects. In the following case, we could not remove the method call: