CODEWITHSUNDEEP
djangodjango-modelsdjango-viewsdjango-formsdjango-templates
nandesuka
nandesuka

Reputation: 799

Show thumbnail in __str__ method in admin

I have an Image model where I have typically shown the filename in the __str__ method. I'd like to instead show a thumbnail of the image instead.

Here's my model:

class Image(models.Model):
    image = models.ImageField(upload_to='images/')

    def filename(self):
        return basename(self.image.name)

    def __str__(self):
        return self.filename()

Upvotes: 0

Views: 231

Answers (1)

Samir Hinojosa
Samir Hinojosa

Reputation: 825

You need to modify your àdmin.py' instead of your models.py. Do the following code.

In your models.py

class Image(models.Model):
    image = models.ImageField(upload_to="images/")

In your admin.py

from PIL import Image
from django.contrib import admin
from django.utils.safestring import mark_safe

class ImageAdmin(admin.ModelAdmin):
    list_display = [
        "thumbnail", "name"
    ]
    list_display_links = [
        "thumbnail"
    ]
    readonly_fields = [
        "thumbnail", "name"
    ]
    fieldsets = [
        ("Details", {
            "fields": ("name", ("image", "thumbnail"))
        }),
    ]

    def thumbnail(self, obj):
        if obj.image:
            return mark_safe(
                '<img src="/media/{url}" width="75" height="auto" >'.format(
                    url=obj.image.url.split("/media/")[-1])
            )

    def name(self, obj):
        name = obj.image.name
        return name.replace('images/', '')

Below, you can see the result in your admin.

enter image description here

enter image description here

Upvotes: 1

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