CloudinaryField add width_field and height_field attributes

[ilyatikhonov]

Django's ImageField has an option to fill special model's fields with width and height of the uploaded image.

For easier migration from ImageField I suggest adding the same options to CloudinaryField.

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Add width_field and height_field attributes to behave like original Django's ImageField

ImageField docs: https://docs.djangoproject.com/en/1.10/ref/models/fields/#django.db.models.ImageField

Width and height fields will be filled by original image size after image upload.

[LorisLunedei]

Any news for this pull request?

[ilyatikhonov]

Hi @tocker, do you have any objections to merging this?

[tocker]

@ilyatikhonov Thanks for the pull request!

The code looks good, but can you please add tests for this feature?
We've added a django_tests module to test Django-specific functionality.

[tocker]

Merged manually.
@ilyatikhonov thanks for the pull request!

[toert]

The only question is "How to use it?"

to_python() returns CloudinaryResource which doesn't have these fields. How can I get CloudinaryField object?

[idobarnoam]

Hi @toert

It's possible to use it in the following way:

Define 2 new fields in the model:
image_width, image_height (you can give them any name)

and then Set them in initialisation of the CloudinaryField
width_field='image_width', height_field='image_height'

For example:

class MyModel(models.Model):
image_width = models.PositiveIntegerField(null=True)
image_height = models.PositiveIntegerField(null=True)
image = CloudinaryField('image', null=True, width_field='image_width', height_field='image_height')