Sync channels in reverse order from when they were last synced

app/YtManagerApp/management/jobs/synchronize.py

@@ -1,11 +1,13 @@
 import errno
 import itertools
+import datetime
 from threading import Lock
 
 from apscheduler.triggers.cron import CronTrigger
-from django.db.models import Max
+from django.db.models import Max, F
 from django.conf import settings
 
+
 from YtManagerApp.management.appconfig import appconfig
 from YtManagerApp.management.downloader import fetch_thumbnail, downloader_process_subscription
 from YtManagerApp.models import *
@@ -36,7 +38,7 @@ class SynchronizeJob(Job):
     def get_subscription_list(self):
         if self.__subscription is not None:
             return [self.__subscription]
-        return Subscription.objects.all()
+        return Subscription.objects.all().order_by(F('last_synchronised').desc(nulls_first=True))
 
     def get_videos_list(self, subs):
         return Video.objects.filter(subscription__in=subs)
@@ -110,6 +112,8 @@ class SynchronizeJob(Job):
                     item.position = 1 + (highest or -1)
 
                 self.__new_vids.append(Video.create(item, sub))
+        sub.last_synchronised = datetime.datetime.now()
+        sub.save()
 
     def fetch_missing_thumbnails(self, obj: Union[Subscription, Video]):
         if obj.thumbnail.startswith("http"):

app/YtManagerApp/models.py

@@ -110,6 +110,7 @@ class Subscription(models.Model):
     user = models.ForeignKey(User, on_delete=models.CASCADE)
     # youtube adds videos to the 'Uploads' playlist at the top instead of the bottom
     rewrite_playlist_indices = models.BooleanField(null=False, default=False)
+    last_synchronised = models.DateTimeField(null=True, blank=True)
 
     # overrides
     auto_download = models.BooleanField(null=True, blank=True)

app/YtManagerApp/views/index.py

@@ -335,7 +335,7 @@ class UpdateSubscriptionForm(forms.ModelForm):
     class Meta:
         model = Subscription
         fields = ['name', 'parent_folder', 'auto_download',
-                  'download_limit', 'download_order', "automatically_delete_watched"]
+                  'download_limit', 'download_order', "automatically_delete_watched", 'last_synchronised']
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -349,7 +349,8 @@ class UpdateSubscriptionForm(forms.ModelForm):
             'auto_download',
             'download_limit',
             'download_order',
-            'automatically_delete_watched'
+            'automatically_delete_watched',
+            Field('last_synchronised', readonly=True)
         )