CakePHP 3 - hasMany through association

if I have an association exactly like in the CookBook here:

http://book.cakephp.org/3.0/en/orm/associations.html#belongstomany-associations

class StudentsTable extends Table  {      public function initialize(array $config)      {          $this->belongsToMany('Courses', [              'through' => 'CourseMemberships',          ]);      }  }    class CoursesTable extends Table  {      public function initialize(array $config)      {          $this->belongsToMany('Students', [              'through' => 'CourseMemberships',          ]);      }  }    class CoursesMembershipsTable extends Table  {      public function initialize(array $config)      {          $this->belongsTo('Students');          $this->belongsTo('Courses');      }  }

Student BelongsToMany Course  Course BelongsToMany Student

id | student_id | course_id | days_attended | grade

How do I find all Courses that given Student has Grade == "A"?

Would following code work fine?

$query = $this->Courses->find('all')

    ->contain(['Students', 'CourseMemberships'])
    ->where(['Students.id' => $student_id, 'CourseMemberships.grade' => 'A']);

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