Defining models with fields in Django - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Django model?

A Django model is a Python class that represents a database table. It defines the structure of stored data using fields.

beginner

How do you define a text field in a Django model?

Use models.CharField(max_length=...) for short text or models.TextField() for longer text without a length limit.

beginner

What does models.IntegerField() represent in a Django model?

It represents a field that stores integer numbers in the database.

intermediate

Why do you need to specify max_length in CharField?

Because CharField stores variable-length strings, max_length sets the maximum allowed characters to save space and enforce limits.

intermediate

What is the purpose of the primary_key=True argument in a Django model field?

It marks that field as the unique identifier for each record in the database table.

Which Django field type would you use to store a date?

A models.IntegerField()

B models.CharField()

C models.DateField()

D models.TextField()

Use models.DateField() to store dates in Django models.

What argument must you provide to CharField?

A default

B max_length

C null

D primary_key

max_length is required to limit the size of the string.

Which field type allows storing large text without length limit?

A models.TextField()

B models.CharField()

C models.IntegerField()

D models.BooleanField()

TextField is used for large text data.

How do you mark a field as the primary key in a Django model?

A primary_key=True

B unique=True

C null=False

D blank=True

Use primary_key=True to set a field as the unique identifier.

What does models.BooleanField() store?

A Dates

B Numbers

C Text

D True or False values

BooleanField stores True or False values.

Explain how to define a Django model with at least three different field types.

Think about how a model maps to a database table with columns.

Describe why specifying field types and options is important when defining Django models.

Consider how data structure and rules affect storage and retrieval.