Admin customization with ModelAdmin in Django - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to register a model with a custom admin class.

Django

from django.contrib import admin
from .models import Book

class BookAdmin(admin.ModelAdmin):
    pass

admin.site.[1](Book, BookAdmin)

Drag options to blanks, or click blank then click option'

Ainstall

Badd

Cregister

Dinclude

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'add' or 'include' instead of 'register'.

Forgetting to pass both model and admin class.

Use admin.site.register to register a model with the admin site.

2fill in blank

medium

Complete the code to display the 'title' and 'author' fields in the admin list view.

Django

class BookAdmin(admin.ModelAdmin):
    list_display = ([1])

Drag options to blanks, or click blank then click option'

Atitle, author

B'title', 'author'

C['title', 'author']

D('title')

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around field names.

Using a list instead of a tuple.

The list_display attribute expects a tuple of field names as strings.

3fill in blank

hard

Fix the error in the code to enable search by 'title' in the admin.

Django

class BookAdmin(admin.ModelAdmin):
    search_fields = [1]

Drag options to blanks, or click blank then click option'

A['title']

Btitle

C'title'

D('title')

Attempts:

3 left

💡 Hint

Common Mistakes

Using a single string without list or tuple.

Using parentheses without comma, which is a string, not a tuple.

The search_fields attribute must be a list or tuple of strings.

4fill in blank

hard

Fill both blanks to filter the admin list by 'published_date' and order by 'title'.

Django

class BookAdmin(admin.ModelAdmin):
    list_filter = ([1],)
    ordering = ([2],)

Drag options to blanks, or click blank then click option'

A'published_date'

B'title'

C'author'

D'created_at'

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong field names for filtering or ordering.

Not using tuples (missing commas).

list_filter is for filtering by fields like dates, and ordering sets the default order.

5fill in blank

hard

Fill all three blanks to customize the admin: show 'title' and 'author', enable search on 'title', and filter by 'status'.

Django

class BookAdmin(admin.ModelAdmin):
    list_display = ([1], [2])
    search_fields = [[3]]
    list_filter = ('status',)

Drag options to blanks, or click blank then click option'

A'title'

B'author'

D'published_date'

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong types for search_fields.

Mixing up field names in list_display.

Use list_display to show fields, search_fields as a list for searching, and list_filter for filtering.

Practice

1. What is the main purpose of customizing a Django ModelAdmin class?

easy

A. To define URL routes for the model views

B. To control how a model is displayed and managed in the Django admin interface

C. To write custom SQL queries for the model

D. To create new database tables automatically

Solution

1. Step 1: Understand ModelAdmin role

   The ModelAdmin class customizes the admin interface for a model, such as which fields show and how data is filtered.

2. Step 2: Identify what ModelAdmin does not do

   It does not create tables, write SQL, or define URLs; those are handled elsewhere in Django.

3. Final Answer:

   To control how a model is displayed and managed in the Django admin interface -> Option B

4. Quick Check:

   ModelAdmin controls admin display = D [OK]

Hint: ModelAdmin customizes admin display, not database or URLs [OK]

Common Mistakes:

• Confusing ModelAdmin with database migrations
• Thinking ModelAdmin handles URL routing
• Assuming ModelAdmin writes SQL queries

2. Which of the following is the correct way to register a model with a custom ModelAdmin in Django admin?

easy

A. admin.site.add(MyModel, MyModelAdmin)

B. admin.register(MyModel, MyModelAdmin)

C. admin.site.register(MyModel, MyModelAdmin)

D. admin.register_site(MyModel, MyModelAdmin)

Solution

1. Step 1: Recall Django admin registration syntax

   The correct method to register a model with a custom admin class is admin.site.register(Model, ModelAdmin).

2. Step 2: Check other options for validity

   Other options like admin.register or admin.site.add do not exist in Django's admin API.

3. Final Answer:

   admin.site.register(MyModel, MyModelAdmin) -> Option C

4. Quick Check:

   Use admin.site.register to register models = A [OK]

Hint: Use admin.site.register(Model, AdminClass) to register [OK]

Common Mistakes:

• Using admin.register instead of admin.site.register
• Trying to call admin.site.add which doesn't exist
• Confusing method names for registration

3. Given this ModelAdmin code, what fields will appear in the Django admin list view?

class BookAdmin(admin.ModelAdmin):
    list_display = ('title', 'author', 'published_date')

admin.site.register(Book, BookAdmin)

medium

A. 'title', 'author', and 'published_date' fields

B. Only 'title' and 'author' fields

C. All fields of the Book model

D. No fields will appear because list_display is incorrect

Solution

1. Step 1: Understand list_display usage

   The list_display attribute defines exactly which fields show in the admin list view.

2. Step 2: Check the fields listed

   The tuple includes 'title', 'author', and 'published_date', so these three fields will appear.

3. Final Answer:

   'title', 'author', and 'published_date' fields -> Option A

4. Quick Check:

   list_display shows specified fields = A [OK]

Hint: list_display shows only fields listed in its tuple [OK]

Common Mistakes:

• Assuming all model fields show by default
• Thinking list_display must include all fields
• Believing list_display is optional for showing fields

4. What is wrong with this ModelAdmin code snippet?

class AuthorAdmin(admin.ModelAdmin):
    search_fields = 'name'

admin.site.register(Author, AuthorAdmin)

medium

A. search_fields should be a list or tuple, not a string

B. AuthorAdmin must inherit from admin.ModelAdminBase

C. admin.site.register is missing parentheses

D. search_fields cannot be used in ModelAdmin

Solution

1. Step 1: Check search_fields type

   The search_fields attribute must be a list or tuple of field names, not a single string.

2. Step 2: Validate other parts

   Inheritance from admin.ModelAdmin is correct, registration syntax is correct, and search_fields is valid in ModelAdmin.

3. Final Answer:

   search_fields should be a list or tuple, not a string -> Option A

4. Quick Check:

   search_fields needs list/tuple = C [OK]

Hint: Wrap search_fields in [] or () even for one field [OK]

Common Mistakes:

• Using a plain string instead of list/tuple for search_fields
• Confusing ModelAdmin inheritance class
• Missing parentheses in admin.site.register (not here though)

5. You want to add a filter sidebar in Django admin to filter books by their 'genre' and 'published_year'. Which ModelAdmin attribute should you customize, and how?

hard

A. Add filter_fields = ['genre', 'published_year'] in the ModelAdmin

B. Use search_fields = ('genre', 'published_year') to enable filtering

C. Override filter_sidebar = True in the ModelAdmin

D. Set list_filter = ('genre', 'published_year') in the ModelAdmin class

Solution

1. Step 1: Identify correct attribute for filters

   The list_filter attribute adds filter sidebars for specified fields in the admin list view.

2. Step 2: Check other options for correctness

   filter_fields and filter_sidebar do not exist; search_fields is for search, not filters.

3. Final Answer:

   Set list_filter = ('genre', 'published_year') in the ModelAdmin class -> Option D

4. Quick Check:

   Use list_filter for sidebar filters = B [OK]

Hint: Use list_filter tuple to add filter sidebar fields [OK]

Common Mistakes:

• Using search_fields instead of list_filter for filters
• Trying to use non-existent filter_fields attribute
• Assuming filter_sidebar is a valid option