File Size

Hi, first of all nice library, i wanna ask if it’s possible to retrieve generated file size in some place, i have a signal to compute and save my image size but i can’t find the variations size.

def compute_size(instance, raw, **kwargs):
    if hasattr(instance, 'image') and instance.image and not raw:  # Required check for tests and fixtures
        user = instance.exercise.created_by if isinstance(instance, ExerciseImage) else instance.comment.user
        total_size = instance.image.size
        if hasattr(instance.image, 'variations'):  # Never runs
            for variation in instance.image.variations:
                total_size += variation.size

[codingjoe]

I honestly never tried that. Mostly because the variation size is kind of specified is it not? At least it’s max bounds. that being said, you don’t have access to the variations at this point, because they did not exist when class was created. Mostly because you are creating a new object. You would need to call set_variations manually. It’s usually called in contribute_to_class which in tern is called when a Django model is constructed. As I said, not in this particular case.

I hope that helps you, let me know if I can be of more help.

[iagocanalejas]

Sorry, same error

@receiver(post_save, sender=ModelName)
def compute_size(instance, raw, **kwargs):
    if hasattr(instance, 'image') and instance.image and not raw:  # Required check for tests and fixtures
        total_size = instance.image.size
        if hasattr(instance.image, 'field') and hasattr(instance.image.field, 'variations'):
            for variation, _ in instance.image.field.variations.items():
                total_size += getattr(instance.image, variation).size

I also try debugging it but the object only contains errors like:

 thumbnail = {ImageFieldFile} path/image.png
	_committed = {bool} True
	closed = {bool} True
	_file = {NoneType} None
	 file = {str} 'Traceback (most recent call last):\n  File "C:\\Users\\Canalejas\\AppData\\Local\\JetBrains\\Toolbox\\apps\\PyCharm-P\\ch-0\\181.4203.547\\helpers\\pydev\\_pydevd_bundle\\pydevd_resolver.py", line 166, in _getPyDictionary\n    attr = getattr(var, n)\n  File 
	size = {str} 'Traceback (most recent call last):\n  File "C:\\Users\\Canalejas\\AppData\\Local\\JetBrains\\Toolbox\\apps\\PyCharm-P\\ch-0\\181.4203.547\\helpers\\pydev\\_pydevd_bundle\\pydevd_resolver.py", line 166, in _getPyDictionary\n    attr = getattr(var, n)\n  File 

The image is still created even if the signal fail.