Gets any special processing requirements for the condition operator.
Some condition types require special processing, such as IN, because the value data they pass in is not a simple value. This is a simple overridable lookup function. Database connections should define only those operators they wish to be handled differently than the default.
$operator: The condition operator, such as "IN", "BETWEEN", etc. Case-sensitive.
The extra handling directives for the specified operator, or NULL.
Overrides Connection::mapConditionOperator
Drupal\Core\Database\Query\Condition::compile()
public function mapConditionOperator($operator) {
// We don't want to override any of the defaults.
static $specials = array(
'LIKE' => array(
'postfix' => " ESCAPE '\\'",
),
'NOT LIKE' => array(
'postfix' => " ESCAPE '\\'",
),
);
return isset($specials[$operator]) ? $specials[$operator] : NULL;
}