#11196: dimensions not set when value for ImageField specifed in constructor
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Reporter: gwilson | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: SVN
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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Given a model with an `ImageField` and defined height/width fields, ex.
{{{
class Person(models.Model):
name = models.CharField(max_length=50)
mugshot = ImageField(storage=temp_storage, upload_to='tests',
height_field='mug_height',
width_field='mug_width')
mug_height = models.PositiveSmallIntegerField()
mug_width = models.PositiveSmallIntegerField()
}}}
Dimensions fields aren't set if you do:
{{{
p = Person(name='Joe', mugshot=ImageFile(open(...)))
}}}
Actually, they are getting set when the `ImageField` gets the value
assigned in `Model.__init__()` (using the `ImageFileDescriptor`), but
since the height and width fields are defined after the `ImageField`, they
get set back to `None` by `Model.__init__()`.
After calling save on the instance:
{{{
p.save()
}}}
...the dimensions fields are set because `save()` ends up calling
`ImageFileDescriptor.__set__()`, which updates the dimensions fields.
This is related to #10044, #10404, and #11084.
--
Ticket URL: <http://code.djangoproject.com/ticket/11196>
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