Django The 'image' attribute has no file associated with it
DjangoDjango Problem Overview
When a user registers for my app.I receive this error when he reaches the profile page.
The 'image' attribute has no file associated with it.
Exception Type: ValueError
Error during template rendering
In template C:\o\mysite\pet\templates\profile.html, error at line 6
1 <h4>My Profile</h4>
2
3 {% if person %}
4 <ul>
5 <li>Name: {{ person.name }}</li>
6 <br><img src="{{ person.image.url }}">
Traceback Switch back to interactive view
File "C:\o\mysite\pet\views.py" in Profile
71. return render(request,'profile.html',{'board':board ,'person':person})
I think this error happens because my template requires a image and seen he just registered he can't add a image unless he go to the edit page and adds a page then he can access the profile page.
My profile.html
<h4>My Profile</h4>
{% if person %}
<ul>
<li>Name: {{ person.name }}</li>
<br><img src="{{ person.image.url }}">
</ul>
{% endif %}
My Profile function at views.py
def Profile(request):
if not request.user.is_authenticated():
return HttpResponseRedirect(reverse('world:LoginRequest'))
board = Board.objects.filter(user=request.user)
person = Person.objects.get(user=request.user)
return render(request,'profile.html',{'board':board ,'person':person})
I tried this solution by creating a 2 instance of Person object and separating them at my template with a if but it didn't succeed.
<h4>My Profile</h4>
{% if person %}
<ul>
<li>Name: {{ person.name }}</li>
</ul>
{% endif %}
{% if bob %}
<ul>
<br><img src="{{ bob.image.url }}">
</ul>
My solutions to the Profile function
def Profile(request):
if not request.user.is_authenticated():
return HttpResponseRedirect(reverse('world:LoginRequest'))
board = Board.objects.filter(user=request.user)
person = Person.objects.get(user=request.user)
bob = Person.objects.get(user=request.user)
return render(request,'profile.html',{'board':board ,'person':person,'bob':bob})
I'm been reading the documentation for Built-in template tags and filters I think a solution here is to use ( and ) template tag but I can't seem to use it properly.
How can I configure this template to make picture an option. If their are no picture leave it but display the persons name.
Thank you for helping me
Django Solutions
Solution 1 - Django
bob
and person
are the same object,
person = Person.objects.get(user=request.user)
bob = Person.objects.get(user=request.user)
So you can use just person for it.
In your template, check image
exist or not first,
{% if person.image %}
<img src="{{ person.image.url }}">
{% endif %}
Solution 2 - Django
The better approach which would not violate DRY is to add a helper method to the model class like:
@property
def image_url(self):
if self.image and hasattr(self.image, 'url'):
return self.image.url
and use default_if_none template filter to provide default url:
<img src="{{ object.image_url|default_if_none:'#' }}" />
Solution 3 - Django
My dear friend, others solvings are good but not enough because If user hasn't profile picture you should show default image easily (not need migration). So you can follow below steps:
Add this method to your person model:
@property
def get_photo_url(self):
if self.photo and hasattr(self.photo, 'url'):
return self.photo.url
else:
return "/static/images/user.jpg"
You can use any path (/media, /static etc.) but don't forget putting default user photo as user.jpg to your path.
And change your code in template like below:
<img src="{{ profile.get_photo_url }}" class="img-responsive thumbnail " alt="img">
Solution 4 - Django
Not exactly what OP was looking for, but another possible solution would be to set a default value for ImageField:
class Profile(models.Model):
# rest of the fields here
image = models.ImageField(
upload_to='profile_pics/',
default='profile_pics/default.jpg')
Solution 5 - Django
you have two choices :
- first one:
in the model field try to put a default image value , like this :
PRF_image = models.ImageField(upload_to='profile_img', blank=True, null=True , default='profile_img/925667.jpg')
- the second one (recommended) :
add a custom method inside your class model like the following , to return PRF_image if exist or return empty string if not :
PRF_image = models.ImageField(upload_to='profile_img', blank=True, null=True )
@property
def my_PRF_image(self):
if self.PRF_image :
return self.PRF_image.url
return ''
and inside your template you can use :
{{ your_object.my_PRF_image }}
i hope this helpful .
Solution 6 - Django
You can also use the Python 3 built-in function getattr to create your new property:
@property
def image_url(self):
"""
Return self.photo.url if self.photo is not None,
'url' exist and has a value, else, return None.
"""
if self.image:
return getattr(self.photo, 'url', None)
return None
and use this property in your template:
<img src="{{ my_obj.image_url|default_if_none:'#' }}" />
Solution 7 - Django
Maybe this helps but my database didn't save on of the pictures for the object displayed on the page.
As that object in models.py has blank=False and also I am looping through object, it constantly gave an error until I added a replacement picture in the admin for the database to render.
Solution 8 - Django
This error also arises when any one or more items doesn't have an image added and the rest items do. To fix this:
class Product(models.Model):
pname = models.CharField(max_length=30)
price = models.IntegerField()
img = models.ImageField(null = True,blank = True)
def __str__(self):
return self.pname
@property
def imageURL(self):
try:
url = self.img.url
except:
url=''
return url
Solution 9 - Django
Many way to solve this issue
Try below code
models.py # under Person class
@property
def imageURL(self):
if self.image:
return self.image.url
else:
return 'images/placeholder.png'
html file
<img src="{% static person.imageURL %}" class="thumbnail" />