/**
* Call children's SQL builders
* @param epQueryNode &$node
* @param string $seperator
* @param boolean $use_parentheses Whether to use parentheses around child results
* @return boolean
*/
protected function _buildSqlChildren(epQueryNode &$node, $seperator = ' ', $use_parentheses = false)
{
$results = array();
if ($children = $node->getChildren()) {
foreach ($children as &$child) {
if ($result = $this->buildSql($child)) {
$results[] = $result;
}
}
}
// use parentheses only when we have more than one child results
if ($use_parentheses && count($results) > 1) {
foreach ($results as $k => $result) {
$results[$k] = '(' . $result . ')';
}
}
return implode($seperator, $results);
}
/**
* Call children's SQL builders
* @return boolean
*/
protected function _buildSqlChildren(epQueryNode &$node, $seperator = ' ')
{
$results = array();
if ($children = $node->getChildren()) {
foreach ($children as &$child) {
$results[] = $this->buildSql($child);
}
}
return implode($seperator, $results);
}
