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<?php |
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namespace WebServCo\Framework\DataTables; |
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use WebServCo\Framework\Database\Order as DatabaseOrder; |
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abstract class AbstractDataTablesDatabase implements \WebServCo\Framework\Interfaces\DataTablesInterface |
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{ |
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protected $db; |
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abstract protected function getDatabaseColumnName($dataTablesColumnName); |
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abstract protected function getQuery($searchQuery, $orderQuery, $limitQuery); |
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abstract protected function getRecordsTotalQuery(); |
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public function __construct(\WebServCo\Framework\Interfaces\DatabaseInterface $db) |
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{ |
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$this->db = $db; |
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} |
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public function getResponse(Request $request) |
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{ |
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$params = []; |
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$limitQuery = null; |
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$columnArrayObject = $request->getColumns(); |
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list($searchQuery, $searchParams) = $this->getSearchQueryPart($columnArrayObject); |
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$params = array_merge($params, $searchParams); |
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$orderArrayObject = $request->getOrder(); |
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$orderQuery = $this->getOrderQuery($columnArrayObject, $orderArrayObject); |
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$length = $request->getLength(); |
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if (-1 != $length) { |
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$limitQuery = 'LIMIT ?, ?'; |
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$params[] = $request->getStart(); |
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$params[] = $length; |
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} |
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$pdoStatement = $this->db->query( |
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$this->getQuery($searchQuery, $orderQuery, $limitQuery), |
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$params |
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); |
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$data = $this->getData($columnArrayObject, $pdoStatement); |
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$recordsFiltered = $this->getRecordsFiltered(); |
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$recordsTotal = $this->getRecordsTotal($recordsFiltered, $searchQuery); |
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return new Response( |
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$request->getDraw(), |
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$recordsTotal, |
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$recordsFiltered, |
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$data |
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); |
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} |
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protected function getData(ColumnArrayObject $columnArrayObject, \PDOStatement $pdoStatement) |
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{ |
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$data = []; |
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while ($row = $pdoStatement->fetch(\PDO::FETCH_ASSOC)) { |
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$item = []; |
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foreach ($columnArrayObject as $column) { |
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$name = $column->getData(); |
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$item[$name] = isset($row[$name]) ? $row[$name] : null; |
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} |
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$data[] = $item; |
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} |
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return $data; |
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} |
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protected function getOrderQuery(ColumnArrayObject $columnArrayObject, OrderArrayObject $orderArrayObject) |
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{ |
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$orderQuery = null; |
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$orderTotal = $orderArrayObject->count(); |
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if (0 < $orderTotal) { |
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$orderQuery = "ORDER BY"; |
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$items = []; |
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foreach ($orderArrayObject as $order) { |
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if ($columnArrayObject[$order->getColumn()]->getOrderable()) { |
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$dir = strtoupper($order->getDir()); |
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$items[] = sprintf( |
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' %s %s', |
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$this->getDatabaseColumnName($columnArrayObject[$order->getColumn()]->getData()), |
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in_array($dir, [DatabaseOrder::ASC, DatabaseOrder::DESC]) ? $dir : DatabaseOrder::ASC |
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); |
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} |
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} |
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$orderQuery .= implode(",", $items); |
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} |
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return $orderQuery; |
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} |
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protected function getRecordsFiltered() |
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{ |
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return $this->db->getColumn("SELECT FOUND_ROWS()", [], 0); |
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} |
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protected function getRecordsTotal($recordsFiltered, $searchQuery) |
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{ |
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if (empty($searchQuery)) { |
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return $recordsFiltered; |
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} |
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return $this->db->getColumn( // grand total - query without the search, order, limits |
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$this->getRecordsTotalQuery(), |
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[] |
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); |
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} |
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protected function getSearchQueryPart(ColumnArrayObject $columnArrayObject) |
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{ |
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$query = null; |
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$params = []; |
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foreach ($columnArrayObject as $column) { |
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if ($column->getSearchable()) { |
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$search = $column->getSearch(); |
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$searchValue = $search->getValue(); |
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if (!empty($searchValue)) { |
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$query .= sprintf( |
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" AND %s REGEXP ?", |
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$this->getDatabaseColumnName($column->getData()) |
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); |
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$params[] = $searchValue; |
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} |
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} |
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} |
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return [$query, $params]; |
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} |
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} |
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webservco /
framework
