add reset-metadata command, related to #287

README.md

@@ -241,6 +241,7 @@ and less common features:
  * [Reset tasks from the command line](https://github.com/meeb/tubesync/blob/main/docs/reset-tasks.md)
  * [Using PostgreSQL, MySQL or MariaDB as database backends](https://github.com/meeb/tubesync/blob/main/docs/other-database-backends.md)
  * [Using cookies](https://github.com/meeb/tubesync/blob/main/docs/using-cookies.md)
+ * [Reset metadata](https://github.com/meeb/tubesync/blob/main/docs/reset-metadata.md)
 
 
 # Warnings

docs/reset-metadata.md

@@ -0,0 +1,30 @@
+# TubeSync
+
+## Advanced usage guide - reset media metadata from the command line
+
+This command allows you to reset all media item metadata. You might want to use
+this if you have a lot of media items with invalid metadata and you want to
+wipe it which triggers the metadata to be redownloaded.
+
+
+## Requirements
+
+You have added some sources and media
+
+## Steps
+
+### 1. Run the reset tasks command
+
+Execute the following Django command:
+
+`./manage.py reset-metadata`
+
+When deploying TubeSync inside a container, you can execute this with:
+
+`docker exec -ti tubesync python3 /app/manage.py reset-metadata`
+
+This command will log what its doing to the terminal when you run it.
+
+When this is run, new tasks will be immediately created so all your media
+items will start downloading updated metadata straight away, any missing information
+such as thumbnails will be redownloaded, etc.

tubesync/sync/management/commands/reset-metadata.py

@@ -0,0 +1,19 @@
+from django.core.management.base import BaseCommand
+from sync.models import Media
+
+
+from common.logger import log
+
+
+class Command(BaseCommand):
+
+    help = 'Resets all media item metadata'
+
+    def handle(self, *args, **options):
+        log.info('Resettings all media metadata...')
+        # Delete all metadata
+        Media.objects.update(metadata=None)
+        # Trigger the save signal on each media item
+        for item in Media.objects.all():
+            item.save()
+        log.info('Done')