Hello,
I am currently going through the 'Evening with Chicago Boss tutorial.
I am following instructions for handling user authentication and have
implemented this code fragment in the
controller/evening_user_controller.erl:
1. login('POST', []) ->
2. Name = Req:post_param("name"),
3. case boss_db:find(ward_boss, [{name, Name}], [{limit,1}]) of
4. [WardBoss] ->
5. case WardBoss:check_password(Req:post_param("password")) of
6. true ->
7. {redirect, proplists:get_value("redirect",
8. Req:post_params(), "/"),
WardBoss:login_cookies()};
9. false ->
10. {ok, [{error, "Bad name/password combination"}]}
11. end;
12. [] ->
13. {ok, [{error, "No Ward Boss named " ++ Name}]}
14. end.
My issue is that the value of the redirect (lines 7 & 8) calculates to the
default value "/" in proplists:get_value/3.
The return value of Req:post_params() is:
[{<<"name">>,<<"Bathhouse John">>},
{<<"password">>,<<"password">>},
{<<"redirect">>,<<"http://localhost:8001/voter/list";>>}]
so querying this list with proplists:get_value("redirect", Req:post_params())
returns undefined.
I modified the code to:
binary_to_list(proplists:get_value(list_to_binary("redirect"),
Req:post_params()))
This works but it is awfully ugly.
Is there a helper method in Chicago Boss or a more elegant erlang conversion
term
I could use to handle the binary tuples returned by Req:get_params()?
What has changed since this tutorial was written? Has the output of
Req:get_params()
changed?
Thanks
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