How can i upload Default Image for all new user when the registration form is submitted-CodePudding

is there anyway I can Upload Image for all new user in their profile. I created a user registration page so when a user submitted the form the new profile will be created automatically using Django Signals the problem I'm facing now is: when a new user is created and redirected the user to home page, when a user click on the Profile page the profile page throws an error like this:

ValueError at /profile/15/
The 'profile_image' attribute has no file associated with it.

and it highlighted this html code in the page:

<img  src="{{profile.profile_image.url}}" alt="Card image cap">

is there anyway I can upload image for all new user in their profile just to avoid the error message in the template. Just like How I make automatic profile for all new user.

my model:

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    profile_image = models.ImageField(upload_to='avatar', blank=True, null=True)
    stories = RichTextField(blank=True, null=True)
    twitter = models.URLField(max_length=300, blank=True, null=True)
    website = models.URLField(max_length=300,blank=True, null=True)
    city = models.CharField(max_length=50, blank=True, null=True)
    location = models.CharField(max_length=80, blank=True, null=True)
    slug = models.SlugField(unique=True, max_length=200)

    def save(self, *args, **kwargs):
        self.slug = slugify(self.user)
        super(Profile, self).save(*args, **kwargs)

    def __str__(self):
        return str(self.user)

signals.py file:

from django.conf import settings 
from django.db.models.signals import post_save
from django.dispatch import receiver
from . models import Profile

User = settings.AUTH_USER_MODEL

#this function wake up after a User object save
@receiver(post_save, sender=User)
def create_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

profile template:

  <div >
    {% for profile in profiles %}
    <div >
        <div  style="width: 18rem;">
            <img  src="{{profile.profile_image.url}}" alt="Card image cap">
            <div >
                <a href="{% url 'edit' profile.slug %}">Edit</a>
                <a href="{{profile.website}}">My website</a>
                <a href="{{profile.twitter}}">My twitter</a> 
                <p>{{profile.city}}</p>    
                <p>{{profile.location}}</p> 
                <p>{{profile.stories}}</p>            
            </div>
          </div>
    </div>
    {% endfor %}
</div>

my views:

def profile(request, pk):
    profiles = Profile.objects.filter(user=request.user)
    questions = Question.objects.filter(user=request.user)
    context = {
        'profiles':profiles,
        'questions':questions
    }
    return render(request, 'profile.html', context)

def register(request):
    if request.method == 'POST':
        username = request.POST['username']
        first_name = request.POST['first_name']
        last_name = request.POST['last_name']
        email = request.POST['email']
        password = request.POST['password']
        password2 = request.POST['password2']

        if password == password2:
            if User.objects.filter(email=email).exists():
                messages.info(request, 'Email or user name Already taking')
                return redirect('register')
            elif User.objects.filter(username=username).exists():
                messages.info(request, 'username is taken')
                return redirect('register')
            else:
                user = User.objects.create_user(username=username, first_name=first_name, 
                last_name=last_name, email=email, password=password)
                user.save();
                return redirect('login')
        else:
            messages.info(request, 'Password Not Match')
            return redirect('register')   
        return redirect ('/')     
    else:
        return render(request, 'signup.html')

CodePudding user response：

Set a default in the model ImageField to a image file in a static section

profile_image = models.ImageField(upload_to='avatar', blank=True, null=True, default='path/to/static/default_user_image.jpg')

Migrating the database will add this to any empty user imagefields, and you can update it by uploading another image file with the same name. This will also prevent multiple copies of the same file.

CodePudding user response：

You can take this approach.

Within the media folder you can add an image called default.png or default.jpg.

Now within your models.py file, you can have:

class Profile(models.Model):
     ...
     # setting the default image from here if none was uploaded when creating the profile
     # passing the name of the image to the default attribute
     profile_image = models.ImageField(upload_to='avatar', blank=True, null=True, default='default.jpg')
     ...

Also, you could do a check (from the template) to see if that given profile has an image:

{% if profile.profile_image %}
     <img  src="{{ profile.profile_image.url }}" alt="Card image cap">
{% endif %}

I'd suggest adding both of the above to what you have though.