how to login/ logout ?!

[circlet]

Dear all,

A beginner here. When I went to this link:http://processwire.com/api/user-access/ to find out how to make login/ logout pages, nothing showed up. Any tutorial regarding this topic for guidance? I'd like to have two different groups of users and each goes to certain different pages after login. When they are logged out, both can see some general pages. Probably there is a very basic answer but I am not an advanced web programmer. Help me out, please    Thanks 

[Wanze]

Hi circlet, welcome to ProcessWire!

How is your current setup for the users? I Assume you created two different roles to distinguish them and assigned one of them to your users.

You can log-in a user with the API: http://processwire.com/api/variables/session/

Short example:

/* After the form with username/password was sent... */

// Log in the user
$username = $sanitizer->pageName($input->post->username); //Sanitize username
$u = $session->login($username, $input->post->password);

// Check if a user was returned or null
if (!is_null($u)) {
  // Redirect based on role
  if ($u->hasRole('role-A')) {
    $session->redirect($pages->get('/path/to/page/for/role-a/')->url);
  }
} else {
  // Wrong username or password
}

[circlet]

Thank you for your reply, Wanze!

So, the "username" and "password" are textfield names, right? Sorry, if it sounds too noob 

[Wanze]

You're welcome!

Yes exactly. It's the same as getting the values from  php's $_POST array, but it's a nice "Pw-way" of doing it

Plus you get the advantage that if a variable is not set, $input returns null whereas accessing a variable that does not exist in the $_POST array returns a Notice "undefined index".

[circlet]

Thank you, Wanze!

I think I got it in a way. I was afraid no one would reply such a noob question. But you guys are so responsive, you rock  Sometimes, even a tiny little thing would not make a sense and you have to ask someone else who knows. Such a welcoming community. I'll explore PW more and will make this website. Thanks again.

[pwFoo]

Yes, PW Community and especially Ryan helping with tipps and code examples

Ryans login example, a modified version from renobird. Another version from Ryan with login, reset password and profile.

Haven't used the examples yet, but maybe in the near future.

But why nobody write a login module to have a shared base for all? Should be great for new users to get started

[Soma]

Just in case. This login code in here with custom login code, will break if login throttle is enabled and kicks in:

See here for how to handle this:

https://processwire.com/talk/topic/107-custom-login/?p=58627