protected function processJoins(PlatformInterface $platform, DriverInterface $driver = null, Parameters $parameters = null)
{
if (!$this->joins) {
return null;
}
$separator = $platform->getIdentifierSeparator();
// process joins
$joinSpecArgArray = array();
foreach ($this->joins as $j => $join) {
$joinType = strtoupper($join['type']);
$joinName = $join['name'];
$joinAs = $joinOn = null;
// table name
if (is_array($joinName)) {
$joinAs = key($joinName);
$joinName = current($joinName);
}
if ($joinName instanceof TableIdentifier) {
list($joinName, $joinSchema, $joinAs) = $joinName->getAll();
$joinName = $platform->quoteIdentifier($joinName);
if ($joinSchema) {
$joinName = $platform->quoteIdentifier($joinSchema) . $separator . $joinName;
}
} else {
if ($joinName instanceof self) {
$joinName = '(' . $joinName->processSubSelect($joinName, $platform, $driver, $parameters) . ')';
} else {
$joinName = $platform->quoteIdentifier($joinName);
}
}
if ($joinAs) {
$joinName .= ' AS ' . $platform->quoteIdentifier($joinAs);
}
if ($join['on'] instanceof ExpressionInterface) {
$joinOn = $this->processExpression($join['on'], $platform, $driver, $this->processInfo['paramPrefix'] . 'join' . ($j + 1) . 'part', $parameters);
} else {
$joinOn = $platform->quoteIdentifierInFragment($join['on'], array('=', 'AND', 'OR', '(', ')', 'BETWEEN', '<', '>'));
}
$joinSpecArgArray[$j] = array($joinType, $joinName, $joinOn);
}
return array($joinSpecArgArray);
}
