getPercentRating method
Returns a percentage rating value greater or equal to 0.0
, or a
negative value if the rating style is not percentage-based, or
if it is unrated.
Implementation
double getPercentRating() {
if (_type != RatingStyle.percentage) return -1;
final localValue = _value as double?;
if (localValue == null || localValue < 0 || localValue > 100) return -1;
return localValue;
}