FEATURE #1358: add interface Authenticable to User model.

It seems that Laravel needs User models (users which are about to authenticate) to implement Authenticable interface.

app/Models/User.php

@@ -2,12 +2,13 @@
 
 namespace App\Models;
 
+use Illuminate\Contracts\Auth\Authenticatable;
 use Illuminate\Database\Eloquent\Model;
 
 /**
  * Class User
  */
-class User extends Model
+class User extends Model implements Authenticatable
 {
 
     public $timestamps = false;
@@ -31,5 +32,65 @@ class User extends Model
     protected $hidden = [
         'password', 'remember_token',
     ];
-        
-}
+
+    /**
+     * Get the name of the unique identifier for the user.
+     *
+     * @return string
+     */
+    public function getAuthIdentifierName()
+    {
+        return $this->email;
+    }
+
+    /**
+     * Get the unique identifier for the user.
+     *
+     * @return mixed
+     */
+    public function getAuthIdentifier()
+    {
+        return $this->id;
+    }
+
+    /**
+     * Get the password for the user.
+     *
+     * @return string
+     */
+    public function getAuthPassword()
+    {
+        return $this->password;
+    }
+
+    /**
+     * Get the token value for the "remember me" session.
+     *
+     * @return string
+     */
+    public function getRememberToken()
+    {
+        return $this->remember_token;
+    }
+
+    /**
+     * Set the token value for the "remember me" session.
+     *
+     * @param  string $value
+     *
+     * @return void
+     */
+    public function setRememberToken($value)
+    {
+        $this->remember_token = $value;
+    }
+
+    /**
+     * Get the column name for the "remember me" token.
+     *
+     * @return string
+     */
+    public function getRememberTokenName()
+    {
+        return 'remember_token';
+    }}