learn how to use choice field in django 5 models

Django's ChoiceField simplifies option selection in forms and the admin interface by allowing you to define pre-defined options for a field. You can define choices by creating a list of two-element tuples for each choice, where the first element represents the actual value stored in the database, and the second element is the human-readable label displayed to users.

models.py

class Product(models.Model):
    name = models.CharField(max_length=100)
    price = models.DecimalField(max_digits=10, decimal_places=2)

    STATUS_CHOICES = (
        ('available', 'Available'),
        ('out_of_stock', 'Out of Stock'),
        ('discontinued', 'Discontinued'),
    )

    status = models.CharField(
        max_length=20, choices=STATUS_CHOICES, default='available')

    def __str__(self):
        return self.name

product Choice Field in Django models

Django 5 Forms and Admin

Using ChoiceField in Django automatically creates a dropdown widget in forms. In the admin, a dropdown menu is displayed for selecting choices. To handle choice values, use appropriate data types and set blank=True for optional fields. Override the default widget to use a different one. For Django 5.0+, define choice groups for better organization.

class Task(models.Model):
    PRIORITY_CHOICES = (
        ('low', 'Low'),
        ('medium', 'Medium'),
        ('high', 'High'),
    )
    STATUS_CHOICES = (
        ('pending', 'Pending'),
        ('in_progress', 'In Progress'),
        ('completed', 'Completed'),
    )

    priority = models.CharField(max_length=10, choices=PRIORITY_CHOICES)
    status = models.CharField(max_length=15, choices=STATUS_CHOICES)

    # Using choice field groups (Django 5.0+)
    CATEGORY_CHOICES = {
        'urgency': PRIORITY_CHOICES,
        'completion': STATUS_CHOICES,
    }

    category = models.CharField(
        max_length=20, choices=CATEGORY_CHOICES.items())

Please take note that it is necessary to add register models in admin.py.

admin.py

from .models import Product, Task
admin.site.register(Product)
admin.site.register(Task)

How to Use Choice Field in Django 5 models

Django 5 Forms and Admin