/**
* Validates the operator in an expression.
*
* @param string $operator
*
* @return bool
*
* @throws InvalidOperatorException
*/
public function validateOperator($operator)
{
$operators = Operator::get();
if (in_array($operator, $operators)) {
return true;
}
$message = "Operator: {$operator} is invalid, and cannot be used.";
throw new InvalidOperatorException($message);
}
/**
* Adds a where expression to the current query.
*
* @param array|string $field
* @param string|null $operator
* @param mixed $value
* @param string $boolean
*
* @return Builder
*/
public function where($field, $operator = null, $value = null, $boolean = 'and')
{
if (is_array($field)) {
// If the column is an array, we will assume it is an array of
// key-value pairs and can add them each as a where clause.
foreach ($field as $key => $value) {
$this->where($key, Operator::$equals, $value, $boolean);
}
return $this;
}
if (!in_array($operator, Operator::get())) {
throw new InvalidOperatorException("Invalid operator {$operator}");
}
$this->wheres[] = compact('field', 'operator', 'value', 'boolean');
return $this;
}
