Show created and edited fields in Django admin form

Question

I have this model

class Volunteer(models.Model):
STATUSES = (
    ('Active', 'Active'),
    ('Paused', 'Paused'),
    ('Inactive', 'Inactive'),
)
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)
email_address = models.CharField(max_length=100, null=True, blank=True)
picture = models.ImageField(null=True, blank=True)
status = models.CharField(max_length=20, choices=STATUSES, default="Active")
created = models.DateTimeField(auto_now_add=True, editable=False)
edited = models.DateTimeField(auto_now=True, editable=False)

And I register it like this

class VolunteerAdmin(admin.ModelAdmin):
fields = ('first_name', 'last_name', 'email_address', 'status', 'created', 'edited')
list_display = ('first_name', 'last_name', 'email_address', 'status')
list_editable = ('status',)
list_filter = ('status',)
search_fields = ('first_name', 'last_name')

admin.site.register(Volunteer, VolunteerAdmin)

I get an error because I have manually added the created and edited fields as I want to see them in the view/edit forms. I know that the user should not be able to change these so I set the attributes to editable=False for both. However, it throws an error. Any idea what I need to do to be able to display these two fields in my admin forms?

This is my error: 'created' cannot be specified for Volunteer model form as it is a non-editable field. Check fields/fieldsets/exclude attributes of class VolunteerAdmin.

Thanks for your help.

Answer 1

You should consider adding created and edited in read-only fields like:

readonly_fields = ('created','edited')

Complete code snippet:

class VolunteerAdmin(admin.ModelAdmin):
    fields = ('first_name', 'last_name', 'email_address', 'status','created','edited')
    list_display = ('first_name', 'last_name', 'email_address', 'status')
    list_editable = ('status',)
    readonly_fields = ('created','edited')
    list_filter = ('status',)
    search_fields = ('first_name', 'last_name')

admin.site.register(Volunteer, VolunteerAdmin)