/**
* Creates and initialize DBPreparedQuery object.
*
* @param string $query DB SQL query template.
* @param string $types Parameters SQL types string ("idsb").
* @param array $params List of the DB SQL query parameters.
*/
public function __construct($query = "", $types = "", $params = [])
{
$this->query = $query;
$this->types = $types;
$this->params = $params;
if (!empty($this->query)) {
$this->type = $this->detectType();
}
parent::__construct($this->type);
}
/**
* Selects DB record(s) for current DBObject table according to params.
*
* @param boolean $debug Debug mode flag.
*
* @return mixed DBObject, array of DBObject or null.
* @throws DBCoreException If some DB or query syntax errors occurred.
*/
public function go($debug = false)
{
switch ($this->dbQuery->getType()) {
case DBQueryType::SELECT:
$this->dbQuery->query = "SELECT * FROM " . static::TABLE_NAME;
break;
case DBQueryType::UPDATE:
$this->dbQuery->query = "UPDATE " . static::TABLE_NAME . " SET ";
$this->dbQuery->sqlPushValues($this->dbQuery->fields);
break;
}
/**
* Conditions
*/
if ($this->isNewRecord()) {
if (!empty($this->dbQuery->conditions)) {
$this->dbQuery->query .= " WHERE ";
$this->dbQuery->sqlPushValues($this->dbQuery->conditions, " AND ");
}
} else {
$this->dbQuery->query .= " WHERE ";
$this->dbQuery->sqlPushValues(array(static::ID_FIELD_NAME => $this->id));
}
/**
* Order
*/
if ($this->isNewRecord()) {
if (!empty($this->dbQuery->order)) {
$this->dbQuery->query .= " ORDER BY";
if (is_array($this->dbQuery->order)) {
foreach ($this->dbQuery->order as $fieldName => $ord) {
$this->dbQuery->query .= " " . $fieldName . " " . $ord . ",";
}
$this->dbQuery->query = substr($this->dbQuery->query, 0, strlen($this->dbQuery->query) - 1);
} elseif (is_string($this->dbQuery->order)) {
$this->dbQuery->query .= " " . $this->dbQuery->order;
}
}
}
/**
* Limit
*/
if ($this->isNewRecord()) {
if (!is_null($this->dbQuery->limit)) {
if (Tools::isInteger($this->dbQuery->limit)) {
$this->dbQuery->query .= " LIMIT " . $this->dbQuery->limit;
} elseif (is_array($this->dbQuery->limit) && count($this->dbQuery->limit) == 2) {
$offset = $this->dbQuery->limit[0];
$count = $this->dbQuery->limit[1];
if (Tools::isInteger($offset) && Tools::isInteger($count)) {
$this->dbQuery->query .= " LIMIT " . $offset . ", " . $count;
} else {
throw new DBCoreException("Invalid LIMIT param in select() method.");
}
} else {
throw new DBCoreException("Invalid LIMIT param in select() method.");
}
}
} else {
$this->dbQuery->query .= " LIMIT 1";
}
if ($debug) {
DBQuery::showQueryDebugInfo($this->dbQuery->query, $this->dbQuery->types, $this->dbQuery->params);
} else {
if ($this->dbQuery->isSelect()) {
$stmt = $this->dbQuery->go();
if ($stmt !== false) {
$data = null;
if ($stmt->num_rows > 1) {
$data = DBCore::selectDBObjectsFromStatement($stmt, $this);
} elseif ($stmt->num_rows == 1) {
$data = DBCore::selectDBObjectFromStatement($stmt, $this);
}
$stmt->close();
return $data;
}
} else {
return $this->dbQuery->go();
}
}
return null;
}
/**
* Executes SQL query.
*
* @param boolean $debug Debug mode flag.
*
* @return mixed Statement object or FALSE if an error occurred if SELECT
* query executed or number of affected rows on success if other
* type of query executed.
*/
public function go($debug = false)
{
if ($debug) {
DBQuery::showQueryDebugInfo($this->query, $this->types, $this->params);
} else {
if ($this->isSelect()) {
return DBCore::doSelectQuery($this);
} else {
return DBCore::doUpdateQuery($this);
}
}
}
/**
* Executes SQL UPDATE query to the database.
*
* @param DBObject $dbObject DBObject to update.
* @param bool $debug Debug mode flag.
*
* @return int Returns the number of affected rows on success, and -1 if
* the last query failed.
*/
public static function updateDBObject($dbObject, $debug = false)
{
$fieldsList = $dbObject->getFieldsList();
$idFieldName = $dbObject->getIdFieldName();
$query = "UPDATE " . $dbObject->getTableName() . "\n SET " . DBPreparedQuery::sqlQMValuesString($fieldsList, $idFieldName) . "\n WHERE " . $idFieldName . " = ?\n LIMIT 1";
$typesString = DBPreparedQuery::sqlTypesString($fieldsList, $idFieldName);
if (Tools::isInteger($fieldsList[$idFieldName])) {
$typesString .= "i";
} else {
$typesString .= "s";
}
$valuesList = self::createValuesList($fieldsList, $idFieldName);
$valuesList[] = $dbObject->getId();
if ($debug) {
DBQuery::showQueryDebugInfo($query, $typesString, $valuesList);
} else {
return self::doUpdateQuery($query, $typesString, $valuesList);
}
}