command for optimize news images

apps/news/management/commands/news_optimize_images.py

@@ -0,0 +1,39 @@
+# coding=utf-8
+from django.core.management.base import BaseCommand
+from django.conf import settings
+
+from utils.methods import get_url_images_in_text
+from news.models import News
+from sorl.thumbnail import get_thumbnail
+
+class Command(BaseCommand):
+    SORL_THUMBNAIL_ALIASES = 'news_image'
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '-a',
+            '--alias',
+            default=self.SORL_THUMBNAIL_ALIASES,
+            help='Ключ для параметров оптимизации',
+        )
+
+    def optimize(self, text, alias):
+        for image in get_url_images_in_text(text):
+            optimized_image = get_thumbnail(
+                file_=image,
+                **settings.SORL_THUMBNAIL_ALIASES[alias]
+            ).url
+            text = text.replace(image, optimized_image)
+            self.stdout.write(self.style.SUCCESS(f'Optimized {image} -> {optimized_image}...\n'))
+
+        return text
+
+    def handle(self, *args, **options):
+        for news in News.objects.all():
+            if not isinstance(news.description, dict):
+                continue
+            news.description = {
+                locale: self.optimize(text, options['alias'])
+                    for locale, text in news.description.items()
+            }
+            news.save()

apps/utils/methods.py

@@ -169,3 +169,9 @@ def section_name_into_index_name(section_name: str):
     result = re.findall(re_exp, section_name)
     if result:
         return f"{' '.join([word.capitalize() if i == 0 else word for i, word in enumerate(result[:-2])])}"
+
+
+def get_url_images_in_text(text):
+    """Find images urls in text"""
+    import re
+    return re.findall(r'(?:http:|https:)?//.*\.(?:png|jpg|svg)', text)