attribute as a choice between fixed alternatives

[andrea.s...@gmail.com]

Is there a way to tell that a certain attribute on a MediaType must have a value chosen from a set of valid values?

Something like the JSON schema's oneOf...

[Stephen Crosby]

I believe you can do this with the 'values' keyword argument. As in:

attribute :foo, String, values: %w(one two)

2016-05-17 8:59 GMT-07:00 <andrea.s...@gmail.com>:

Is there a way to tell that a certain attribute on a MediaType must have a value chosen from a set of valid values?

Something like the JSON schema's oneOf...

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[andrea.s...@gmail.com]

Thank you Stephen, I'll give it a try!

[Josep Blanquer]

yes, Stephen is correct.

If you haven't taken a look, i would recommend reading about Attributor (which is the 'types' library behind every structure that you define in Praxis).

Here's the entry wiki page:

• https://github.com/rightscale/attributor/wiki

And this page is about types vs. attributes (which will answer your question in much more detail): 

• https://github.com/rightscale/attributor/wiki/Overview-of-Types-vs-Attributes

And here you can see a bunch of screencasts about the available features and such: 

•   https://www.youtube.com/watch?v=UBC0_LIbmc8&list=PLzfnhdN42TxYMM3gIZ8yhcupI7rghetgt
  

Cheers,

Josep M.

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