When
When(if_rule: AbstractRule, then_rule: AbstractRule, else_rule: Optional[AbstractRule] = None)
A ternary validator that accepts three parameters.
When the if_rule
validates, returns validation for then_rule
.
When the if_rule
doesn't validate, returns validation for else_rule
, if defined.
v.when(v.intVal(), v.positive(), v.notEmpty()).validate(1) # true
v.when(v.intVal(), v.positive(), v.notEmpty()).validate('not empty') # true
v.when(v.intVal(), v.positive(), v.notEmpty()).validate(-1) # false
v.when(v.intVal(), v.positive(), v.notEmpty()).validate('') # false
In the sample above, if input_value
is an integer, then it must be positive.
If input_value
is not an integer, then it must not be empty.
When else_rule
is not defined use AlwaysInvalid
Categorization
- Conditions
- Nesting
Changelog
Version | Description |
---|---|
1.0.0 | Created |
See also: