Yii2: unable to get data from two tables with active record

I want to get data from two tables comments

, users

.
comments

has to do hasOne

withusers

public function getUser()
    {
        return $this->hasOne(Users::className(), ['user_id' => 'user_id']);
    }

      

        
        
        
      

    

I want to get comments.comment_id

, comments.comment_content

, comments.user_id

from the table comments

and uses.user_name

, users.user_display_name

of users

for the use of widgets gridview

.

I use

$res = Comments::find()
            ->select([
                'comments.comment_id',
                'comments.comment_content',
                'comments.user_id',
                'users.user_id',
                'users.user_display_name',
                'users.user_name',
            ])
            ->innerJoinWith('user')
            ->all();

      

        
        
        
      

    

this code gets the field comments

, but I cannot get users.user_name

, users.user_display_name

from the database.

How should I do it?

note: the user table is in the database users

, but when I create the model with Gii, the relationship method declares as getUser()

, I don't know why.

update 1:

comments

table:

DROP TABLE IF EXISTS `comments`;
CREATE TABLE `comments` (
  `comment_id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `comment_content` text NOT NULL,
  `comment_approved` enum('no','yes') NOT NULL DEFAULT 'no',
  `comment_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `comment_parent` bigint(20) unsigned NOT NULL DEFAULT '0',
  `sms_id` bigint(20) unsigned NOT NULL DEFAULT '0',
  `user_id` bigint(20) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (`comment_id`),
  KEY `fk_comment_sms_id` (`sms_id`),
  KEY `fk_commetn_user_id` (`user_id`),
  CONSTRAINT `fk_comment_sms_id` FOREIGN KEY (`sms_id`) REFERENCES `sms` (`sms_id`),
  CONSTRAINT `fk_commetn_user_id` FOREIGN KEY (`user_id`) REFERENCES `users` (`user_id`)
) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8;

      

        
        
        
      

    

users

table:

CREATE TABLE `users` (
  `user_id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `user_name` varchar(60) NOT NULL DEFAULT '',
  `user_pass` varchar(64) NOT NULL DEFAULT '',
  `user_level` int(11) NOT NULL DEFAULT '1',
  `user_email` varchar(100) NOT NULL DEFAULT '',
  `user_display_name` varchar(250) NOT NULL DEFAULT '',
  `user_phone_number` varchar(11) NOT NULL,
  `user_registered` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `user_activation_key` varchar(60) NOT NULL,
  `user_status` enum('active','deactive','delete') NOT NULL DEFAULT 'deactive',
  PRIMARY KEY (`user_id`),
  UNIQUE KEY `u_user_sign` (`user_name`) USING BTREE,
  UNIQUE KEY `u_user_email` (`user_email`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=24 DEFAULT CHARSET=utf8;