Add ignoreUndefined flag for rename()

[JbIPS]

Add a flag to ignore a missing key when renaming it.

var schema = Joi.object().rename('b', 'a', { ignoreUndefined: true });

            var input = {
                a: 'something'
            };

            schema.validate(input, function (err, value) {

               // input : {a: 'something'}
            });

close #614

[AdriVanHoudt]

isn't it easier to do expect(value).to.deep.equal({ a: 'something' })?

[JbIPS]

That's right, I just copied/paste https://github.com/JbIPS/joi/blob/master/test/object.js#L652.
If you think deep.equal() is better, I'll change it

[AdriVanHoudt]

it will make sure that if you tamper with the test and add an extra key or something the test itself will still want to same result. in your case the results needs to have key a but it can aswell have key b. I don't think it is a major thing but it also improves readability imo

[JbIPS]

Ok, the new test is here :)

[AdriVanHoudt]

👍

[Marsup]

Space before brace.

[Marsup]

To avoid future regressions can you also add tests combining this flag with override true ? And also add that flag to the docs. Thanks !

[JbIPS]

Added a cross test with override and rebased to enable auto merge :)

[AdriVanHoudt]

nice work!

[Marsup]

Thanks !

[JbIPS]

Thanks! Just one little question, when do you think this will be released? Just to know when I could go back to "joi": "6.1.0" on my package :)

[Marsup]

Finishing the work on IP validation then .

[lock]

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