Forum: Ruby on Rails General path question

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Carl-Gustaf H. (Guest)
on 2006-05-22 19:02
(Received via mailing list)
Hello all,

I am currently building my first RoR application. On the server side,
I have a web service that will fetch some data from a third party
provider and display it to the my user. I have a couple of question on
best practices.

I am using WSDL scanning which gives a lot of overhead a take couple
of seconds to accomplish. I have my class that will deal with all the
wweb service call in the model diectory. I called it
postcode_anywhere_service.rb. My first question is: should it be a
singleton (will that be scalable do you beleive?) I know this is
somewhat a general question and would be happy to hear some advices.

So I have this web_Service class defined in my model directory. In my
controller (postcode_controller),  I want to initialize
postcode_anywhere_service.rb only once (per user? I am not sure which
is best - should I initialize it once for all users or once per usere.
Each user will have a couple of request...). I put it in the
initialize definition of the postcode_controller. I beleive it should
not be in there but can not find a best practise for initialization.

Basically, if it can be scalable, I want to define each def in the
postcode_anywhere_service to be self called. So I could use
PostcodeAnywhreService.getAddress(postcode) for exemple without
instantiating it each time. But for that I need to instantiate the
class a first time before calling the above. What is the best solution
to do so? Will it be scallabe?


Thanks a lot for any comments, tutorials ect...
Carl-Gustaf H.
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