(Sorry if this ends as a double post, as I send this using email, but for
some reason it doesn't show in the group. So I am posting it again directly
on the group page.)
Hi All
I'm building a gem and trying to decide what is the best way to provide
return values.
Let's say that my gem add the do_something method to user:
user.do_something
But if that something is already done I want to provide meaningful
feedback, I can't decide what is a best practice here or what is better,
these is what I can think of:
Option 1. return false
res = user .do_something
res //=> false
user.errors //=> ['already done'] information about the errors, like
active record
Option 2. raise an exception (seems a little drastic)
begin
res = user .do_something
rescue MyGem::AlreadyDoneException => e
end
Option 3. return an error code
res = user.do_something
res //=> 3 (meaning already done)
Option 4. return an object
res = user.do_something
res.success //=> false
res.messages //=> ['already done']
Any recommendations on what is a best practice here?
Thanks,
Sebastian
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