def resizeImage(self, image_field: ImageFieldFile, size: tuple):
image = Image.open(image_field.file.file)
image.thumbnail(size=size)
image_file = BytesIO()
image.save(image_file, image.format)
image_field.save(image_field.name,
InMemoryUploadedFile(
image_file,
None,
'',
image_field.file.content_type,
image.size,
image_field.file.charset,
),
save=False)
def save(self, commit=True):
instance = super(SettingsForm, self).save(commit=False)
if self.instance.type == Settings.Type.BOOLEAN:
# if it is checkbox and value is False - save as empty string
if self.instance.value == 'False':
self.instance.value = ''
elif self.instance.type == Settings.Type.IMAGE and 'value' in self.changed_data:
new_field = ImageFieldFile(instance=self.instance, field=models.ImageField(upload_to=UPLOAD_TO_DIRECTORY),
name=self.instance.value.name)
new_field.field.name = 'value'
new_field.save(self.instance.value.name, self.instance.value, True)
self.instance.value = self.instance.value.lower()
if commit:
instance.save()
return instance
def _create_thumbnail(image_field: ImageFieldFile,
thumbnail_image_field: ImageFieldFile, size: tuple):
image = Image.open(image_field.file.file)
image.thumbnail(size=size)
image_file = BytesIO()
image.save(image_file, image.format)
thumbnail_image_field.save(
image_field.name,
InMemoryUploadedFile(
image_file,
None,
"",
image_field.file.content_type,
image.size,
image_field.file.charset,
),
save=False,
)
def saveImageFieldFile(f, imageFieldFile: ImageFieldFile, chosenName=None):
if isinstance(f, File):
imageFieldFile.save(
chosenName if chosenName else determineUpload(None, f.name), f,
True)
elif isinstance(f, str) or isinstance(f, bytes):
with open(f, "rb") as ff:
imageFieldFile.save(
chosenName if chosenName else determineUpload(None, ff.name),
File(ff), True)
else:
imageFieldFile.save(
chosenName if chosenName else determineUpload(None, f.name),
File(f), True)