向用户添加徽章以在Django中执行任务

Question

Hi Djangonauts, How is everyone today, I am new to Django so please forgive any silly mistakes in logic or code. I have a user, a User_Profile and a posts model. I want to give the user badges for the number of posts the user posts. Example if the user posts 3 posts he/she gets a beginner badge and so on...

Below is my user Profile models.py

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    profile_image = models.ImageField(default='', blank=True, null=True)
    badge_image = models.ImageField(default='', blank=True, null=True)#maybe default can be "static/images/beginner_image.jpg" but it does not work 

posts models.py

User = get_user_model()
class Post(models.Model):
    user = models.ForeignKey(User, related_name='posts')
    title = models.CharField(max_length=250, unique=True)  
    slug = models.SlugField(allow_unicode=True, unique=True)
    message = models.TextField()

Now I want to achieve something like this:

 user = User.objects.get(username=request.user.username)
    if user.posts.count >= 3 :
             badge_image = '<img src="some image">'# I don't know how to make a image variable in views and models. I know how to use it in Django templates with {{image.url}}   
    elif user.posts.count >= 20 :
             badge_image = '<img src="some image">'
    else:
         badge_image ='<img src="beginner_image">'

Where do I write this code in the models, in the views? I am sorry if my questions are too basic. None of the projects I learned had a similar scenario

Answer 1

You can do it without ImageField . Use model's @property for this. You need to copy badge images(eg badge_img1.jpg , badge_img2.jpg , etc.) to director with static files(check docs how to manage static with Django ). Rewrite Profile like this:

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    profile_image = models.ImageField(default='', blank=True, null=True)

    @property
    def badge_image(self):
        if self.user.posts.count() >= 20:
             badge_image = 'badge_img1.jpg'# I don't know how to make a image variable in views and models. I know how to use it in Django templates with {{image.url}}   
        elif self.user.posts.count() >= 3:
             badge_image = 'badge_img2.jpg'
        else:
             badge_image ='badge_img3.jpg'
        return badge_image

you can display current user's image like this:

{% load static %}
<img src={% static user.profile.badge_image %}>