[erlang-questions] Reading from mnesia

[Oscar Muñoz Garrigós]

Hi guys,
I am creating a chat application android - erlang.

The problem is i can't read from the table. What am i doing wrong?

-record(message,{leido, from, to, text}).

install(Nodes) ->
    mnesia:create_schema(Nodes),
    mnesia:start(),
    mnesia:create_table(
        message,
        [
            {attributes, record_info(fields, message)}
        ]
    ).

write_message(From, To, Text)->
    Trans = fun()->mnesia:write(#message{leido = false,from = From, to =
To, text = Text}) end,
    mnesia:transaction(Trans).

read_message(To)->
    Trans = fun() ->  mnesia:read({message,To}) end,
    mnesia:transaction(Trans).

*leido marks if the message has been readed

Another question is i want to read only messages where leido = false, ¿how
can i do it?

Thank you all
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