Transforming incoming data? about fractal

[philsturgeon]

Howdy, I found some folks referencing these old isssues and I'd like to update them with more recent opinions. At the time I was dead set on Fractal being a serializer, and thought that serializers should just be serializers.

Deserializers are also incredibly important, and defining contracts multiple times is a pain in the butt. I'd love to see some functionality grow, where one contract can be defined, and both deserialization and serialization can be performed from that contract.

http://trailblazer.to/gems/operation/1.1/representer.html

Trailblazer does this rather well, but the docs can be a little confusing sometimes. There are a lot of gems involved but Roar and Representatable do the most of it I think.

[jasonlewis]

I believe that's beyond the scope of Fractal. Will be up to you to retrieve
and parse data sent from a client.
On 14 Jun 2014 03:02, "Troy Pavlek" [email protected] wrote:

Forgive me if I'm missing something, but it's not immediately apparent to
me nor does it seem to be mentioned in the docs:

What about recieving data? If I have an object in the database, and for
simplicity's sake let's us the example that in the database a column is
called "start_date", I transform this to simply be "start" when it's sent
to the client. Now, when I recieve data back, it will obviously just be a
"start" property, which isn't actually in the database.

Do transformers support inverting their own operations?

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#65.

[philsturgeon]

Saving data is much easier, and as Jason said it's not a job for Fractal.

You can solve this with DDD, using entity objects to set up the data, or just building an array of input data, then pass that off to your model. Your repository or model can have a create() and a update() method, both of which structure and validate this data.

[GPHemsley]

@philsturgeon That link is now dead, and in any case refers to Ruby code, not PHP code. Do you have any recommendations for getting this behavior in a way that complements a Fractal transformer? Is there any likelihood in it being added here? (I note that this issue and many similar ones remain closed.)