/**
* Retrieves an operator from the available operators.
*
* Throws an AdldapException if no operator is found.
*
* @param string $operator
*
* @throws InvalidQueryOperatorException
*
* @return string
*/
private function validateOperator($operator)
{
$operators = Operator::all();
$key = array_search(strtolower($operator), $operators);
if ($key !== false && array_key_exists($key, $operators)) {
return $operators[$key];
}
$operators = implode(', ', $operators);
$message = "Operator: {$operator} cannot be used in an LDAP query. Available operators are: {$operators}";
throw new InvalidQueryOperatorException($message);
}
/**
* Assembles a single where query based
* on its operator and returns it.
*
* @param Where $where
*
* @return string|null
*/
protected function compileWhere(Where $where)
{
// The compile function prefix.
$prefix = 'compile';
// Get the operator from the where.
$operator = $where->getOperator();
// Get the name of the operator.
$name = array_search($operator, Operator::all());
if ($name !== false) {
// If the name was found we'll camel case it
// to run it through the compile method.
$method = $prefix . ucfirst($name);
// Make sure the compile method exists for the operator.
if (method_exists($this, $method)) {
return $this->{$method}($where->getField(), $where->getValue());
}
}
return;
}
