Change likedislike app to reaction app

Question

Maciej UrmańskiJuly 21, 2020, 8:12 a.m.

Change likedislike app to reaction app

Hi, I create app following the tutorial on evileg, but I do some changes.

My code:

class LikeDislikeManager(models.Manager):
    use_for_related_fields = True

    def likes(self):
        # We take the queryset with records greater than 0
        return self.get_queryset().filter(vote__gt=0)

    def dislikes(self):
        # We take the queryset with records less than 0
        return self.get_queryset().filter(vote__lt=0)

    def sum_rating(self):
        # We take the total rating
        return self.get_queryset().aggregate(Sum('vote')).get('vote__sum') or 0     

class LikeDislike(models.Model, Activity):
    LIKE = 1
    POWER = 1
    WOW = 1
    SUCCESS = 1
    BLOW = 1

    VOTES = (
        (LIKE, 'Polubienie'),
        (POWER, 'Jest moc!'),
        (WOW, 'Wow'),
        (SUCCESS, 'Świetnie!'),
        (BLOW, 'Mózg rozwalony!'),
    )

    vote = models.SmallIntegerField(verbose_name='Like', choices=VOTES)
    user = models.ForeignKey(User, verbose_name='Użytkownik polubił', on_delete=models.CASCADE)
    created_at = models.DateTimeField(auto_now_add=True)

    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey()

    objects = LikeDislikeManager()

    @property
    def activity_actor_attr(self):
        return self.user

I don't change views.py and almost everything works fine but reaction count. I don't know how to count particural reaction. Any idea? :)

We recommend hosting TIMEWEB

Stable hosting, on which the social network EVILEG is located. For projects on Django we recommend VDS hosting.

Subscribe to the discussion2

Section subscription100

The question is asked by the articleDjango - Tutorial 023. Like Dislike system using GenericForeignKey

Do you like it? Share on social networks!

July 21, 2020, 4:09 p.m.
The answer was marked as a solution.

Hello,

In my tutorial I use +1 and -1 for Like and Dislike, because of it is very easy to get total sum, like rating. But you have different idea of reaction. You can not use +1 and -1 and make sum of these reaction.

But you can set up different types of reactions like this

LIKE = 1
POWER = 2
WOW = 3
SUCCESS = 4
BLOW = 5

And you need to write the following manager

class LikeDislikeManager(models.Manager):
    use_for_related_fields = True

    def likes(self):
        return self.get_queryset().filter(vote=1)

    def powers(self):
        return self.get_queryset().filter(vote=2)

    def wows(self):
        return self.get_queryset().filter(vote=2)

    def successes(self):
        return self.get_queryset().filter(vote=2)

    def blows(self):
        return self.get_queryset().filter(vote=2)

But in this conception you don't use sum_rating . I think it is useless

MU

July 25, 2020, 9:47 a.m.

Thank you! This is it. :)

Comments

Only authorized users can post comments.
Please, Log in or Sign up