Rails - Nov 2006 - Web Services: Returning multiple values

Ok, so I have an API definition as so...

api_method :frame_out,
           :returns => [:boolean,:int,:int,:string,:string]

and a controller method as follows...

def frame_out
        return [false, 0, 0, '''','''']
end

When I run this using the test scaffolding I get a "Don''t know how
to
cast Array into Boolean" Error.

What am I doing wrong?

Cheers.

Dougal.

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On Nov 16, 2006, at 8:04 AM, Douglas Shearer wrote:
>
> Ok, so I have an API definition as so...
>
> api_method :frame_out,
>            :returns => [:boolean,:int,:int,:string,:string]
>
> and a controller method as follows...
>
> def frame_out
>         return [false, 0, 0, '''','''']
> end
>
> When I run this using the test scaffolding I get a "Don''t
know how to
> cast Array into Boolean" Error.
>
> What am I doing wrong?
I think you need to try an additional level of indirection on your  
return value:

:returns => [[:boolean, :int, :int, :string, :string]]

This will return an array containing a boolean, two ints and two  
strings. Your prior definition didn''t do that. I think this is due to  
the peculiarity of how the syntax looks for the api definition. The  
first pair of brackets don''t actually define an array from the API  
standpoint.

I''m not explaining this well... sorry. Just try the above and see if  
it fixes your problem.

cr

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Chuck Remes wrote:
> :returns => [[:boolean, :int, :int, :string, :string]]

 Oops, I wrote my code wrong, the controller method should in fact 
return a boolean, two ints and two strings...

return true, 0, 0, '''', ''''

This is how I would usually return  multiple values to a method call. 
Unfortunately, I now get a "Don''t know how to cast String into
Boolean"
error. :o(

 Help is, and will be, appreciated.

Ta.

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On 11/16/06, Douglas Shearer
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
>
> Chuck Remes wrote:
>
> > :returns => [[:boolean, :int, :int, :string, :string]]
>
>
>  Oops, I wrote my code wrong, the controller method should in fact
> return a boolean, two ints and two strings...
>
> return true, 0, 0, '''', ''''
>
> This is how I would usually return  multiple values to a method call.
> Unfortunately, I now get a "Don''t know how to cast String
into Boolean"
> error. :o(
>
>  Help is, and will be, appreciated.
>
AFAIK, SOAP doesn''t allow arrays of different types. You can introduce
AWS::Struct class and use it as a returning value.

-- 
Kent
---
http://www.datanoise.com

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