Yii2 ActiveRecord saves null values instead of real values

Question

I'm starting with Yii2 and want to save something to my database. this is my model:

class Course extends ActiveRecord
{
    public $name;

    public function rules()
    {
        return [
            [['name'], 'integer']
        ];
    }
}

and I call it like this:

$Course = new Course();
$Course->name = 44;
$Course->save();

This is a simple code but it insert null in my database. my table just has a name column as int. What is the solution? I have read THIS question but his problem is not the same as me

Answer 1

If name is the real column name from your database you need to remove

public $name;

from your ActiveRecord class. You can not have model properties of the same name as the database columns declared in the class because ActiveRecord won't work.