I have a Resource, which can either be an image, a link or a
document. What is the cleanest way to handle this?
My thoughts are either, have them be attributes on the Resource
object:
class Resource(models.Model):
name = models.CharField(...)
# One of these
image = models.ImageField(...)
link = models.UrlField(...)
doc = models.FileField(...)
Or, OneToOne with choices:
class Resource(models.Model):
name = models.CharField(...)
class ImageAttachment(models.Model):
image = ...
resource = models.OneToOneField(Resource)
class LinkAttachment(models.Model):
url = ...
resource = models.OneToOneField(Resource)
class DocumentAttachment(models.Model):
file = ...
resource = models.OneToOneField(Resource)
Neither seems especially clean, I feel like I'm missing something
idiomatic here...
Having the attachments as fields seems not-so-clean, but for vague
reasons.
The OneToOne kind of stinks because if I'm listing resources, it seems
I have to have a bunch of try:except: blocks to figure out which
resource exists.
Thoughts/suggestions?
Regards,
Tom
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