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<?php |
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namespace Minerva\FrontQL\Adapter\Select; |
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use Minerva\FrontQL\Adapter\Select\Basis\Exception\InvalidColumnNameException; |
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use Minerva\FrontQL\Adapter\Where\WhereAdapter; |
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/** |
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* Class SelectPayload |
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* |
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* @author Lucas A. de Araújo <[email protected]> |
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* @package Minerva\FrontQL\Adapter\Select |
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*/ |
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class SelectPayload |
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{ |
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/** |
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* Payload recebido do front-end |
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* |
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* @var array |
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*/ |
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protected $payload; |
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/** |
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* Constrói o payload |
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* |
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* @param array $payload |
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*/ |
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public function __construct(array $payload) |
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{ |
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$this->payload = $payload; |
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} |
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/** |
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* Retorna as colunas filtradas no select |
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* @return array |
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* @throws InvalidColumnNameException |
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*/ |
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public function getColumns() |
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{ |
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// Se nenhuma coluna foi definida todas serão retornadas |
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if(!isset($this->payload['columns']) || !is_array($this->payload['columns'])) |
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return ['*']; |
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$regex = '/^[a-zA-Z_][a-zA-Z0-9_]*$/'; |
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$columns = array(); |
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foreach ($this->payload['columns'] as $column){ |
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// Valida o nome da coluna |
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if(!is_string($column) || !preg_match($regex, $column)) |
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throw new InvalidColumnNameException(); |
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$columns[] = $column; |
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} |
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if(count($columns) == 0) |
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return ['*']; |
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return $columns; |
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} |
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/** |
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* Retorna o limite de linhas |
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* |
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* @return int|null |
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*/ |
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public function getLimit() |
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{ |
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if(!isset($this->payload['limit'])) |
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return null; |
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if(!is_numeric($this->payload['limit'])) |
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return null; |
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return (int) $this->payload['limit']; |
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} |
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/** |
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* Retorna o offset de linhas |
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* |
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* @return int|null |
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*/ |
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public function getOffset() |
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{ |
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if(!isset($this->payload['offset'])) |
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return 1; |
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if(!is_numeric($this->payload['offset'])) |
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return 1; |
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return (int) $this->payload['offset']; |
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} |
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/** |
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* Retorna a ordem definida pelo usuário em string |
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* |
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* @return string |
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*/ |
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public function getOrder() |
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{ |
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$allowed = ['ASC', 'DESC']; |
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if(!isset($this->payload['order']) || !is_array($this->payload['order'])) |
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return null; |
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$orders = array(); |
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foreach ($this->payload['order'] as $order) |
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{ |
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$columns = implode(', ', $order[0]); |
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$command = in_array($order[1], $allowed) ? $order[1] : 'ASC'; |
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$orders[] = "{$columns} {$command}"; |
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} |
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return implode(', ', $orders); |
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} |
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/** |
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* Retorna o where do payload de seleção |
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* |
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* @return array |
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*/ |
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public function getWhere() |
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{ |
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if(!is_array($this->payload['where'])) |
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return []; |
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$adapter = new WhereAdapter(); |
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$where = $adapter->fromArray($this->payload['where']); |
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return $where; |
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} |
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} |
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minerva-framework /
minerva-frontql
