/**
* Returns a new QueryExpression object. This is a handy function when
* building complex queries using a fluent interface. You can also override
* this function in subclasses to use a more specialized QueryExpression class
* if required.
*
* You can optionally pass a single raw SQL string or an array or expressions in
* any format accepted by \Cake\Database\Expression\QueryExpression:
*
* ```
*
* $expression = $query->newExpr(); // Returns an empty expression object
* $expression = $query->newExpr('Table.column = Table2.column'); // Return a raw SQL expression
* ```
*
* @param mixed $rawExpression A string, array or anything you want wrapped in an expression object
* @return QueryExpression
*/
public function newExpr($rawExpression = null) : QueryExpression
{
$expression = new QueryExpression([], $this->typeMap());
if ($rawExpression !== null) {
$expression->add($rawExpression);
}
return $expression;
}
/**
* Constructor
*
* @param array $conditions The sort columns
* @param array $types The types for each column.
* @param string $conjunction The glue used to join conditions together.
*/
public function __construct($conditions = [], $types = [], $conjunction = '')
{
parent::__construct($conditions, $types, $conjunction);
}