It appears that I needed to include the before_call/2 in the list of
exported functions. That takes care of the previous problem.
However I have come up with a new problem. So now I have this:
before_call(is_logged_in, A) ->
io:format("hello. I see you").
just to test to see if the call would be made right. I end up with
this error:
ERROR erlang code crashed:
File: appmod:0
Reason: {function_clause,
[{dashboard_controller,before_call,
[index,
[{arg,#Port<0.7415>,
{{127,0,0,1},49695},
{headers,"keep-alive",
"text/xml,application/xml,application/xhtml
+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5",
"localhost:
8057",undefined,undefined,undefined,
undefined,undefined,undefined,undefined,
"Mozilla/5.0 (Macintosh; U; PPC Mac OS X;
en) AppleWebKit/523.12.2 (KHTML, like Gecko) Version/3.0.4 Safari/
523.12.2",
undefined,
...
>From what I see, this means that no function clause matched the
incoming function signature. Has anyone used before_call/2
successfully?
Thanks
Nii AMon
On Oct 26, 4:52 am, nii amon <[EMAIL PROTECTED]> wrote:
> Hi guys
>
> Does anyone have an example of how to use before_call to check if a
> user is logged in assuming that we use sessions to track logged in
> users? I am in a bit of trouble trying to get this to work. I have
> something like below:
>
> before_call(is_logged_in, A) ->
> {is_logged_in, [A]}.
>
> is_logged_in([A]) ->
> case utilman:check_cookie(A) of
> {ok, Sess} ->
> % do something
> _ ->
> % do something
> end.
>
> I get a long error trace when I try to access a function in the
> controller:
>
> Reason: {undef,
> [{dashboard_controller,before_call,
> [index,
> [{arg,#Port<0.5879>,
> {{127,0,0,1},60507},
> {headers,"keep-alive",
> ....
>
> Does anyone know how to make this work?
>
> Thanks
> Nii AMon
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