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respect-validation/docs/When.md
Henrique Moody 9f15c6b6d8
 Update documentation with code that works 
Some codes in the documentation were not code that actually works which
can lead to some confusion of how to use Validation.

Signed-off-by: Henrique Moody <henriquemoody@gmail.com>
2018-06-12 17:27:06 +02:00

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When

  • When(Validatable $if, Validatable $then)
  • When(Validatable $if, Validatable $then, Validatable $else)

A ternary validator that accepts three parameters.

When the $if validates, returns validation for $then. When the $if doesn't validate, returns validation for $else, 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 is an integer, then it must be positive. If $input is not an integer, then it must not be empty. When $else is not defined use AlwaysInvalid

Changelog

Version Description
0.8.0 Allow to use rule without else
0.3.9 Created

See also: