Perform User Authentication if email provided exists in the database

Question

In Laravel, is it possible to do a sign-in base on user email only - no password needed.

---

I'ved tried

public function postSignIn(){

      $validator = Validator::make(Input::only('email') , array(
        'email' => 'required',
      ));

      if ($validator->fails()) {
        return Redirect::to('/')->with('error', 'Please fill out your information ')->withErrors($validator)->withInput();
      }

      $email = strtolower(Input::get('email'));

      $auth = Auth::attempt(array('email' => $email ));

      if ($auth) {
        return Redirect::to('/dashboard')->with('success', 'Hi '. Auth::user()->name .'! You have been successfully logged in.');
      }

      else {
        return Redirect::to('/')->with('error', 'Username/Password Wrong')
          ->with('username', $username)
          ->withErrors($validator);
      }

---

I keep getting : Undefined index: password

Do I need to modify the any kind of Auth driver for this to work ?

Any hints/ suggestions on this will be much appreciated !

Answer 1

You can do something like this:

public function postSignIn(){

      $validator = Validator::make(Input::only('email') , array(
        'email' => 'required',
      ));

      if ($validator->fails()) {
        return Redirect::to('/')->with('error', 'Please fill out your information ')->withErrors($validator)->withInput();
      }

      $email = strtolower(Input::get('email'));

      try{
          $user = User::where('email', $email)->firstOrFail();
          Auth::login($user);

          return Redirect::to('/dashboard')->with('success', 'Hi '. Auth::user()->name .'! You have been successfully logged in.');
      }
      catch(ModelNotFoundException $exception){
          return Redirect::to('/')->with('error', 'Username/Password Wrong')
            ->with('username', $username)
            ->withErrors($validator);

      }
}

You can check more info in here on how to manually login your users (you will have to scroll down a little bit)