/**
* Process
*
* @param array $settings
* @return \Bluz\Grid\Data
*/
public function process(array $settings = [])
{
// process filters
$where = [];
if (!empty($settings['filters'])) {
foreach ($settings['filters'] as $column => $filters) {
foreach ($filters as $filter => $value) {
if ($filter == Grid\Grid::FILTER_LIKE) {
$value = '%' . $value . '%';
}
$where[] = $column . ' ' . $this->filters[$filter] . ' ' . Proxy\Db::quote($value);
}
}
}
// process orders
$orders = [];
if (!empty($settings['orders'])) {
// Obtain a list of columns
foreach ($settings['orders'] as $column => $order) {
$column = Proxy\Db::quoteIdentifier($column);
$orders[] = $column . ' ' . $order;
}
}
// process pages
$limit = ' LIMIT ' . ($settings['page'] - 1) * $settings['limit'] . ', ' . $settings['limit'];
// prepare query
$type = Proxy\Db::getOption('connect', 'type');
if (strtolower($type) == 'mysql') {
// MySQL
$dataSql = preg_replace('/SELECT\\s(.*?)\\sFROM/is', 'SELECT SQL_CALC_FOUND_ROWS $1 FROM', $this->source, 1);
$totalSql = 'SELECT FOUND_ROWS()';
} else {
// other
$dataSql = $this->source;
$totalSql = preg_replace('/SELECT\\s(.*?)\\sFROM/is', 'SELECT COUNT(*) FROM', $this->source, 1);
if (sizeof($where)) {
$totalSql .= ' WHERE ' . join(' AND ', $where);
}
}
if (sizeof($where)) {
$dataSql .= ' WHERE ' . join(' AND ', $where);
}
if (sizeof($orders)) {
$dataSql .= ' ORDER BY ' . join(', ', $orders);
}
$dataSql .= $limit;
// run queries
// use transaction to avoid errors
Proxy\Db::transaction(function () use(&$data, &$total, $dataSql, $totalSql) {
$data = Proxy\Db::fetchAll($dataSql);
$total = Proxy\Db::fetchOne($totalSql);
});
$gridData = new Grid\Data($data);
$gridData->setTotal($total);
return $gridData;
}
/**
* Process
*
* @param array $settings
* @return \Bluz\Grid\Data
*/
public function process(array $settings = [])
{
// process filters
if (!empty($settings['filters'])) {
foreach ($settings['filters'] as $column => $filters) {
foreach ($filters as $filter => $value) {
if ($filter == Grid\Grid::FILTER_LIKE) {
$value = '%' . $value . '%';
}
$this->source->andWhere($column . ' ' . $this->filters[$filter] . ' ?', $value);
}
}
}
// process orders
if (!empty($settings['orders'])) {
// Obtain a list of columns
foreach ($settings['orders'] as $column => $order) {
$this->source->addOrderBy($column, $order);
}
}
// process pages
$this->source->setLimit($settings['limit']);
$this->source->setPage($settings['page']);
// prepare query
$type = Proxy\Db::getOption('connect', 'type');
if (strtolower($type) == 'mysql') {
// MySQL
$select = $this->source->getQueryPart('select');
$this->source->select('SQL_CALC_FOUND_ROWS ' . current($select));
$totalSql = 'SELECT FOUND_ROWS()';
} else {
// other
$totalSource = clone $this->source;
$totalSource->select('COUNT(*)');
$totalSql = $totalSource->getSql();
}
$data = [];
$total = 0;
// run queries
// use transaction to avoid errors
Proxy\Db::transaction(function () use(&$data, &$total, $totalSql) {
$data = $this->source->execute();
$total = Proxy\Db::fetchOne($totalSql);
});
$gridData = new Grid\Data($data);
$gridData->setTotal($total);
return $gridData;
}
/**
* Get set of records
*
* @param int $offset
* @param int $limit
* @param array $params
* @param int $total
* @return array|int|mixed
* @throws ApplicationException
*/
public function readSet($offset = 0, $limit = 10, $params = [], &$total = null)
{
$select = $this->getTable()->select();
// switch statement for DB type
$type = Proxy\Db::getOption('connect', 'type');
switch ($type) {
case 'mysql':
$selectPart = $select->getQueryPart('select');
$selectPart = 'SQL_CALC_FOUND_ROWS ' . current($selectPart);
$select->select($selectPart);
$totalSQL = 'SELECT FOUND_ROWS()';
break;
case 'pgsql':
default:
$selectTotal = clone $select;
$selectTotal->select('COUNT(*)');
$totalSQL = $selectTotal->getSql();
break;
}
$select->setLimit($limit);
$select->setOffset($offset);
// run queries
// use transaction to avoid errors
Proxy\Db::transaction(function () use(&$result, &$total, $select, $totalSQL) {
$result = $select->execute();
if (!is_null($total)) {
$total = Proxy\Db::fetchOne($totalSQL);
}
});
return $result;
}
/**
* Return information about tables columns
*
* @return array
*/
public function getColumns()
{
if (empty($this->columns)) {
$columns = Cache::get('table:columns:' . $this->table);
if (!$columns) {
$connect = DbProxy::getOption('connect');
$columns = DbProxy::fetchColumn('
SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = ?
AND TABLE_NAME = ?', [$connect['name'], $this->getName()]);
Cache::set('table:columns:' . $this->table, $columns);
Cache::addTag('table:columns:' . $this->table, 'db');
}
$this->columns = $columns;
}
return $this->columns;
}
