I am using Django admin for my site and I would like to make a customization on how a field is displayed on the list_display page for one of my models.

One of my models has a TextField that can be 300 characters

When the model is listed in the Django admin, I would like to limit the length of the text displayed in the Admin list display to 100 characters.

Is there a way to do this within the Django Admin class?

admin.py:

class ApplicationAdmin(admin.ModelAdmin):
    model = Application
    list_display = [ "title1", "title2"]

models.py:

class Application(models.Model):
    title1 = models.TextField(max_length=300)
    title2 = models.TextField(max_length=300)

You can display a property that returns a truncated version of your field's value in your ModelAdmin class. Leveraging the built-in template filters makes this easy.

from django.template.defaultfilters import truncatechars  # or truncatewords

class Foo(models.Model):
    description = models.TextField()

    @property
    def short_description(self):
        return truncatechars(self.description, 100)

class FooAdmin(admin.ModelAdmin):
    list_display = ['short_description']