Introduction

The 'erlyforms' application makes possible to create forms for your erlang application. I have a very long time programming in Django, and now began to Erlangen. I very much did not have enough tools to create and validate forms. I found the source by Geoff Cant made their workers, and changed them.

Usage

Simple form:

my_form() ->
    form:create("User Registration Form", "reg_form", ".",
            [
                text([{name,"name"},{rules,[{length, [3,30]}]}]),
                text([{name,"email"},{rules,[email_address]}]),
                password([{name,"password"},{rules,[{length, [8,infinity]}]}]),
                password([{name,"confirm_password"}]),
                submit([{value,"Signup"}])
            ],
            [{"passwords", [{duplication, ["password",
            "confirm_password"]}]}]
            ).

Render form: render() -> form:render(my_form()).

Validate form:

process_post(Post) ->
    case form:valid_post(my_form(), Post) of
        {invalid, Results, _Fields} ->
            error_logger:info_msg("~p",["invalid",Results]);
        {valid, Fields} ->
           error_logger:info_msg("~p",["valid",Fields])
    end.

Render form with data:

render_with_initial() ->
    InitialObject = [{"name","User"},{"email","[email protected]"}],
    form:render_with_data(my_form(), InitialObject).