/**
* Render and return a valid LDAP filter expression of the given filter
*
* @param FilterExpression $filter
*
* @return string
*/
protected function renderFilterExpression(FilterExpression $filter)
{
$column = $filter->getColumn();
$sign = $filter->getSign();
$expression = $filter->getExpression();
$format = '%1$s%2$s%3$s';
if ($expression === null || $expression === true) {
$expression = '*';
} elseif (is_array($expression)) {
$seqFormat = '|(%s)';
if ($sign === '!=') {
$seqFormat = '!(' . $seqFormat . ')';
$sign = '=';
}
$seqParts = array();
foreach ($expression as $expressionValue) {
$seqParts[] = sprintf($format, LdapUtils::quoteForSearch($column), $sign, LdapUtils::quoteForSearch($expressionValue, true));
}
return sprintf($seqFormat, implode(')(', $seqParts));
}
if ($sign === '!=') {
$format = '!(%1$s=%3$s)';
}
return sprintf($format, LdapUtils::quoteForSearch($column), $sign, LdapUtils::quoteForSearch($expression, true));
}
/**
* Render a single filter expression
*
* @param FilterExpression $filter the filter expression
* @param bool $keylookup whether to resolve alias names
*
* @return string
*/
public function renderFilterExpression(FilterExpression $filter, $keylookup = true)
{
if ($keylookup) {
$col = $this->available_columns[$filter->getColumn()];
} else {
$col = $filter->getColumn();
}
$isArray = array_key_exists($col, $this->arrayColumns);
$sign = $filter->getSign();
if ($isArray && $sign === '=') {
$sign = '>=';
}
$expression = $filter->getExpression();
if ($sign === '=' && strpos($expression, '*') !== false) {
return $col . ' ~~ ' . $this->safeRegex($expression);
} elseif ($sign === '!=' && strpos($expression, '*') !== false) {
return $col . ' !~~ ' . $this->safeRegex($expression);
} else {
return $col . ' ' . $sign . ' ' . $expression;
}
}