//This is the model itself
class Reviews(models.Model):
    mentor_id = models.IntegerField(default=0, unique=False);
    review_id = models.IntegerField(default=0, unique=False);
    title = models.CharField(max_length=200);
    content = models.CharField(max_length=200);
    stars = models.DecimalField(max_digits=1, decimal_places=1);
    ----> object = ReviewsManager

//Trying to use this manager below
---> class ReviewsManager(models.Manager):

    def getReviewsByMentorId(self, id):
       r = Reviews.objects.filter(mentor_id=id);
       return r;

class ReviewsManager(models.Manager):

    def getReviewsByMentorId(self, id):
        r = Reviews.objects.filter(mentor_id=id);
        return r;

class ReviewsManager(models.Manager):

    def getReviewsByMentorId(self, id):
        r = Reviews.objects.filter(mentor_id=id);
        return r;

class ReviewsManager(models.Manager):

    def getReviewsByMentorId(self, id):
        r = Reviews.objects.filter(mentor_id=id);
        return r;