Validation rule used to negate another rule.
Implements: IValidationRule
Description
The NotRule class allows you to negate a rule. Thus, when the embedded rule returns errors, then the negated rule returns no errors and vice versa.
Constructors
Creates a new validation rule and sets its values
NotRule(rule: IValidationRule)
- rule: IValidationRule - a rule to be negated.
Instance methods
validate
Validates a given value against this rule.
validate(path: str, schema: Schema, value: Any, results: List[ValidationResult])
- path: str - a dot notation path to the value.
- schema: Schema - a schema this rule is called from
- value: Any - a value to be validated.
- results: List[ValidationResult] - a list with validation results to add new results.
Examples
schema = Schema().with_rule(NotRule(ValueComparisonRule("EQ", 1)))
schema.validate(1) # Result: error
schema.validate(5) # Result: no error