Admin customization with ModelAdmin in Django - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ component_behavior

intermediate

What is the effect of list_display in ModelAdmin?

Consider this Django admin customization:

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

What will the admin list page for Book show?

A The list page will show columns for title, author, and published_date fields.

B The list page will only show the title field as a column.

C The list page will show all fields of the Book model automatically.

D The list page will show no columns because list_display is ignored.

💡 Hint

list_display controls which fields appear as columns in the admin list view.

The list_display attribute in ModelAdmin specifies exactly which model fields appear as columns in the admin list page. Here, title, author, and published_date will be shown as columns.

📝 Syntax

intermediate

Which ModelAdmin code correctly adds a search box for 'name' field?

You want to add a search box in Django admin to search by the 'name' field of a model. Which code snippet is correct?

A

class MyModelAdmin(admin.ModelAdmin):
    search_fields = ['name']

B

class MyModelAdmin(admin.ModelAdmin):
    search = ['name']

C

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

D

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

💡 Hint

search_fields must be a list or tuple of field names.

The search_fields attribute must be a list or tuple of strings naming the fields to search. Option A uses a list correctly. Option A uses a wrong attribute name. Option A uses a string instead of list. Option A uses a string in parentheses, which is not a tuple.

🔧 Debug

advanced

Why does this ModelAdmin code cause an error?

Given this code:

class ProductAdmin(admin.ModelAdmin):
    list_filter = 'category'

What error will Django admin raise when loading this ModelAdmin?

A AttributeError because 'category' field does not exist.

B SyntaxError due to missing parentheses.

C No error; it works fine showing a filter for category.

D TypeError because list_filter expects a list or tuple, not a string.

💡 Hint

list_filter must be a list or tuple of field names.

list_filter expects an iterable like a list or tuple. Passing a string causes Django to treat it as an iterable of characters, which is invalid and raises a TypeError.

❓ state_output

advanced

What is the output of this ModelAdmin with custom method in list_display?

Consider this code:

class OrderAdmin(admin.ModelAdmin):
    list_display = ('id', 'customer_name')

    def customer_name(self, obj):
        return obj.customer.first_name + ' ' + obj.customer.last_name
    customer_name.short_description = 'Customer'

What will the admin list page show in the 'Customer' column?

A It will raise an AttributeError because customer_name is not a model field.

B It will show the string 'customer_name' literally for all rows.

C It will show the full name of the customer by combining first and last names.

D It will show empty cells because customer_name is not defined properly.

💡 Hint

Custom methods in list_display can show computed values.

Defining a method named customer_name and including it in list_display allows Django admin to call it for each object. The method returns the full name, so the column shows the combined first and last names.

🧠 Conceptual

expert

Which ModelAdmin feature allows grouping fields in the admin form?

You want to organize fields in the Django admin form into sections with titles. Which ModelAdmin attribute do you use?

A search_fields

B fieldsets

C list_display

D list_filter

💡 Hint

Think about grouping fields with headings in the form view.

The fieldsets attribute lets you group fields into sections with titles in the admin form. list_display controls list columns, search_fields adds search box, and list_filter adds filters.