CODEWITHSUNDEEP
django
Landcross
Landcross

Reputation: 492

Get choices display value using enum as choices

I have a Django model in which I'm using the choices parameter. For the choices, I'm using a Python Enum. Now I want to display the choices display value in a template. I know there's .get_fieldname_display but it just returns the key instead of the display value in this case.

Model:

class LocalTitle(models.Model):
    type = models.CharField(max_length=8, choices=[(tag, tag.value) for tag in LocalTitleCodes])
    title = models.CharField(max_length=255)

Enum:

class LocalTitleCodes(Enum):
     title_00 = 'Japanese'
     title_01 = 'English'
     title_02 = 'French'

So in my case, if I do title.get_type_display in my template it returns title_00 and not Japanese. How can I get the display value?

Upvotes: 4

Views: 7059

Answers (2)

willeM_ Van Onsem
willeM_ Van Onsem

Reputation: 477180

I think the problem is more that tag does not map to title__00, but to a LocalTitleCodes object.

You should use:

class LocalTitle(models.Model):
    type = models.CharField(
        max_length=8,
        choices=[(tag.name, tag.value) for tag in LocalTitleCodes]
    )
    title = models.CharField(max_length=255)

Since Django thus could not find a the corresponding value, it fallsback on the value stored in the database.

Since:

>>> [(tag, tag.value) for tag in LocalTitleCodes]
[(<LocalTitleCodes.title_00: 'Japanese'>, 'Japanese'), (<LocalTitleCodes.title_01: 'English'>, 'English'), (<LocalTitleCodes.title_02: 'French'>, 'French')]
>>> [(tag.name, tag.value) for tag in LocalTitleCodes]
[('title_00', 'Japanese'), ('title_01', 'English'), ('title_02', 'French')]

Upvotes: 4

a_k_v
a_k_v

Reputation: 1608

class LocalTitle(models.Model):
    LOCALCODES = (
     ('title_00' , 'Japanese')
     ('title_01' ,'English')
     ('title_02' , 'French')
)
    type = models.CharField(max_length=8, choices=LOCALCODES)
    title = models.CharField(max_length=255)

Or you can give your choice like this.

Upvotes: 3

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