Validation rule used to check that a list contains only specified values.
Implements: IValidationRule
Description
The InclidedRule class allows you to check that a list contains only specified values.
Constructors
Creates a new validation rule and sets its values.
IncludedRule(List<dynamic>? values)
- values: List<dynamic>? - list of constants with values that must be included.
Instance methods
validate
Validates a given value against this rule.
@override
void validate(String? path, Schema schema, dynamic value, List<ValidationRule> results)
- path: String? - dot notation path to the value.
- schema: Schema - schema this rule is called from.
- value: dynamic - value to be validated.
- results: List<ValidationRule> - list with validation results.
Examples
var schema = Schema()
.withRule( IncludedRule(1, 2, 3));
schema.validate(2); // Result: no errors
schema.validate(10); // Result: 10 must be one of 1, 2, 3