/**
* @param Metadata $metadata
* @param $query
* @param array $bind
* @param Connection $db
*/
public function __construct(Metadata $metadata, $query, array $bind = null, Connection $db = null)
{
$this->metadata = $metadata;
if (null !== $db) {
$this->db = $db;
} else {
$this->db = $metadata->getDbConnection();
}
$selectAllFields = [];
$dbCols = $this->metadata->getDbColNames();
foreach ($dbCols as $colName) {
$selectAllFields[] = 't.' . $this->qi($colName);
}
$query = str_ireplace(['select *', ':t'], ['SELECT ' . implode(', ', $selectAllFields), $this->qi($this->metadata->getDbTableName()) . ' t'], $query);
// auto replace :field_name placeholders by their quoted db column names
$query = preg_replace_callback('/:(\\w+)/', function ($matches) use($metadata) {
if ($metadata->__isset($matches[1])) {
return $this->qi($metadata->getField($matches[1])->db_column);
} else {
return $matches[0];
}
}, $query);
$this->queryStringCache = $query;
// other :somename placeholders treated as prepared statement bindings
if (null !== $bind) {
$this->bind($bind);
}
$this->returnObjects();
}