erjemin/2018-lpon-site
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mod: django-filer настройка (06) преобразование в webp

Browse Source
This commit is contained in:
Sergei Erjemin
2026-06-07 21:38:52 +03:00
parent 6a1f923fe4
commit 3d301ad326
1 changed files with 22 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
lpon_site/frontend/apps.py
View File

@@ -40,37 +40,36 @@ class CustomFilerConfig(AppConfig):
base_path = randomized(instance, filename)
return f'flrm/{base_path}'
class WebPConverter:
def convert_to_webp_if_needed(self, name: str, content):
_, original_ext = os.path.splitext(name)
if original_ext.lower() in [".jpg", ".jpeg", ".png", ".bmp", ".tiff"]:
try:
content.seek(0)
img = PILImage.open(BytesIO(content.read()))
if img.mode == 'CMYK':
img = img.convert('RGB')
buffer = BytesIO()
img.save(buffer, format="WEBP", quality=THUMBNAIL_WEBP_QUALITY)
buffer.seek(0)
new_name = name.rsplit(original_ext, 1)[0] + ".webp"
logger.info(f"Successfully converted '{name}' to '{new_name}' (WebP).")
return ContentFile(buffer.read()), new_name, True
except Exception:
logger.error(f"Error converting '{name}' to WebP.", exc_info=True)
content.seek(0)
return content, name, False
content.seek(0)
return content, name, False
@staticmethod
def _convert_to_webp_if_needed(name: str, content):
_, original_ext = os.path.splitext(name)
if original_ext.lower() in [".jpg", ".jpeg", ".png", ".bmp", ".tiff"]:
try:
content.seek(0)
img = PILImage.open(BytesIO(content.read()))
if img.mode == 'CMYK':
img = img.convert('RGB')
buffer = BytesIO()
img.save(buffer, format="WEBP", quality=THUMBNAIL_WEBP_QUALITY)
buffer.seek(0)
new_name = name.rsplit(original_ext, 1)[0] + ".webp"
logger.info(f"Successfully converted '{name}' to '{new_name}' (WebP).")
return ContentFile(buffer.read()), new_name, True
except Exception:
logger.error(f"Error converting '{name}' to WebP.", exc_info=True)
content.seek(0)
return content, name, False
content.seek(0)
return content, name, False
def ready(self):
from filer.fields.multistorage_file import MultiStorageFieldFile
logger.info("Patching MultiStorageFieldFile.save() for WebP conversion...")
original_save = MultiStorageFieldFile.save
webp_converter = self.WebPConverter()
def patched_save(self_instance, name, content, save=True):
new_content, new_name, converted = webp_converter.convert_to_webp_if_needed(name, content)
new_content, new_name, converted = CustomFilerConfig._convert_to_webp_if_needed(name, content)
if converted:
self_instance.instance.mime_type = "image/webp"
if hasattr(self_instance.instance, 'original_filename') and self_instance.instance.original_filename: