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<?php |
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/** |
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* Bluz Framework Component |
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* |
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* @copyright Bluz PHP Team |
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* @link https://github.com/bluzphp/framework |
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*/ |
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declare(strict_types=1); |
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namespace Bluz\Grid\Source; |
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use Bluz\Db; |
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use Bluz\Grid; |
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use Bluz\Grid\Data; |
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use Bluz\Proxy; |
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/** |
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* SQL Source Adapter for Grid package |
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* |
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* @package Bluz\Grid |
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* @author Anton Shevchuk |
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* |
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* @method string getSource() SQL query |
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*/ |
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class SqlSource extends AbstractSource |
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{ |
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/** |
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* Set SQL source |
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* |
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* @param string $source |
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* |
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* @return void |
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* @throws \Bluz\Grid\GridException |
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*/ |
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public function setSource($source) : void |
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{ |
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if (!is_string($source)) { |
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throw new Grid\GridException('Source of `SqlSource` should be string with SQL query'); |
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} |
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parent::setSource($source); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(int $page, int $limit, array $filters = [], array $orders = []) : Data |
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{ |
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// process filters |
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$filters = $this->applyFilters($filters); |
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// process orders |
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$orders = $this->applyOrders($orders); |
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// prepare query |
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$type = Proxy\Db::getOption('connect', 'type'); |
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if (strtolower($type) === 'mysql') { |
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// MySQL |
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$dataSql = preg_replace('/SELECT\s(.*?)\sFROM/is', 'SELECT SQL_CALC_FOUND_ROWS $1 FROM', $this->source, 1); |
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$totalSql = 'SELECT FOUND_ROWS()'; |
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} else { |
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// other |
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$dataSql = $this->source; |
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$totalSql = preg_replace('/SELECT\s(.*?)\sFROM/is', 'SELECT COUNT(*) FROM', $this->source, 1); |
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if (count($filters)) { |
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$totalSql .= ' WHERE ' . implode(' AND ', $filters); |
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} |
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} |
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if (count($filters)) { |
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$dataSql .= ' WHERE ' . implode(' AND ', $filters); |
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} |
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if (count($orders)) { |
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$dataSql .= ' ORDER BY ' . implode(', ', $orders); |
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} |
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// process pages |
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$dataSql .= ' LIMIT ' . ($page - 1) * $limit . ', ' . $limit; |
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// run queries |
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// use transaction to avoid errors |
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Proxy\Db::transaction( |
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function () use (&$data, &$total, $dataSql, $totalSql) { |
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$data = Proxy\Db::fetchAll($dataSql); |
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$total = (int)Proxy\Db::fetchOne($totalSql); |
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} |
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); |
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$gridData = new Data($data); |
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$gridData->setTotal($total); |
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return $gridData; |
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} |
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/** |
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* Apply filters to SQL query |
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* |
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* @param array[] $settings |
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* |
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* @return array |
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*/ |
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private function applyFilters(array $settings) : array |
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{ |
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$where = []; |
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foreach ($settings as $column => $filters) { |
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foreach ($filters as $filter => $value) { |
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if ($filter === Grid\Grid::FILTER_LIKE) { |
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$value = '%' . $value . '%'; |
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} |
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$where[] = $column . ' ' . |
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$this->filters[$filter] . ' ' . |
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Proxy\Db::quote((string)$value); |
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} |
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} |
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return $where; |
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} |
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/** |
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* Apply order to SQL query |
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* |
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* @param array $settings |
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* |
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* @return array |
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*/ |
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private function applyOrders(array $settings) : array |
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{ |
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$orders = []; |
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// Obtain a list of columns |
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foreach ($settings as $column => $order) { |
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$column = Proxy\Db::quoteIdentifier($column); |
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$orders[] = $column . ' ' . $order; |
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} |
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return $orders; |
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} |
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} |
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