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Django. Lessons for beginners

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Django Admin - Set Fields to Display


Make the List Display More Reader-Friendly

When you display a Model as a list, Django displays each record as the string representation of the record object, which in our case is "Member object (1)", "Member object(2)" etc.:

Django Admin

To change this to a more reader-friendly format, we have two choices:

  1. Change the string representation function, __str__() of the Member Model
  2. Set the list_details property of the Member Model

Change the String Representation Function

To change the string representation, we have to define the __str__() function of the Member Model in models.py, like this:

my_tennis_club/members/models.py:

from django.db import models

class Member(models.Model):
  firstname = models.CharField(max_length=255)
  lastname = models.CharField(max_length=255)
  phone = models.IntegerField(null=True)
  joined_date = models.DateField(null=True)

  def __str__(self):
    return f"{self.firstname} {self.lastname}"

Which gives us this result:

Django Admin

Defining our own __str__() function is not a Django feature; it is how to change the string representation of objects in Python. Read more about Python objects in our Python object tutorial.


Set list_display

We can control the fields to display by specifying them in a list_display property in the admin.py file.

First create a MemberAdmin() class and specify the list_display tuple, like this:

my_tennis_club/members/admin.py:

from django.contrib import admin
from .models import Member

# Register your models here.

class MemberAdmin(admin.ModelAdmin):
  list_display = ("firstname", "lastname", "joined_date",)

admin.site.register(Member, MemberAdmin)

Remember to add the MemberAdmin as an argument in the admin.site.register(Member, MemberAdmin).

Now go back to the browser and you should get this result:

Django Admin

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