cjtterabytesoft/yii2-adminlte-basic

<?php

/*
 * This file is part of the Cjt Terabyte LLC [yii2-extension].
 *
 * (c) Cjt Terabyte LLC [yii2-extension] <http://github.com/cjtterabytesoft>.
 * For the full copyright and license information, please view the LICENSE.md.
 * file that was distributed with this source code.
 *
 * @link http://www.cjtterabyte.com.
 * @author Wilmer Arámbula <cjtterabytellc@gmail.com>.
 * @copyright (c) 2015 Cjt Terabyte LLC.
 * @Extension: [yii2-adminlte-basic].
 * @Models App [LoginForm].
 * @since 1.0
 */

namespace cjtterabytesoft\adminlte\basic\models;

use Yii;
use yii\base\Model;

class LoginForm extends Model
{
    public $username;
    public $password;
    public $rememberMe = true;

    private $_user = false;

    /**
     * @return array the validation rules.
     */
    public function rules()
    {
        return [
            // username and password are both required
            [['username', 'password'], 'required'],
            // rememberMe must be a boolean value
            ['rememberMe', 'boolean'],
            // password is validated by validatePassword()
            ['password', 'validatePassword'],
        ];
    }

    /** @inheritdoc */
    public function attributeLabels()
    {
        return [
            'username'   => Yii::t('adminlte', 'Username'),
            'password'   => Yii::t('adminlte', 'Password'),
            'rememberMe' => Yii::t('adminlte', 'Remember'),
        ];
    }

    /**
     * Validates the password.
     * This method serves as the inline validation for password.
     *
     * @param string $attribute the attribute currently being validated
     * @param array $params the additional name-value pairs given in the rule
     */
    public function validatePassword($attribute, $params)
    {
        if (!$this->hasErrors()) {
            $user = $this->getUser();

            if (!$user || !$user->validatePassword($this->password)) {
                $this->addError($attribute, yii::t('adminlte', 'Incorrect username or password.'));
            }
        }
    }

    /**
     * Logs in a user using the provided username and password.
     * @return boolean whether the user is logged in successfully
     */
    public function login()
    {
        if ($this->validate()) {
            return Yii::$app->user->login($this->getUser(), $this->rememberMe ? 3600*24*30 : 0);
        }
        return false;
    }

    /**
     * Finds user by [[username]]
     *
     * @return User|null
     */
    public function getUser()
    {
        if ($this->_user === false) {
            $this->_user = User::findByUsername($this->username);
        }

        return $this->_user;
    }
}