Continued refactoring.

app/YtManagerApp/appmain.py

@@ -31,13 +31,18 @@ def __initialize_logger():
         logging.root.addHandler(console_handler)
 
 
+def __load_main_jobs():
+    SynchronizeJob.schedule_global_job()
+
+
 def main():
     __initialize_logger()
 
     try:
         if Services.appConfig().initialized:
             Services.scheduler().initialize()
-            SynchronizeJob.schedule_global_job()
+            __load_main_jobs()
+
     except OperationalError:
         # Settings table is not created when running migrate or makemigrations;
         # Just don't do anything in this case.

app/YtManagerApp/models.py

@@ -29,10 +29,25 @@ VIDEO_ORDER_MAPPING = {
 }
 
 
+class Provider(models.Model):
+
+    class_name = models.CharField(null=False, max_length=64, unique=True,
+                                  help_text='Class name in the "providers" package.')
+
+    config = models.CharField(max_length=1024,
+                              help_text='Provider configuration (stored as JSON)')
+
+
 class SubscriptionFolder(models.Model):
-    name = models.CharField(null=False, max_length=250)
+
-    parent = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=True)
+    name = models.CharField(null=False, max_length=250,
-    user = models.ForeignKey(User, on_delete=models.CASCADE, null=False, blank=False)
+                            help_text='Folder name')
+
+    parent = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=True,
+                               help_text='Parent folder')
+
+    user = models.ForeignKey(User, on_delete=models.CASCADE, null=False, blank=False,
+                             help_text='User who owns the subscription')
 
     class Meta:
         ordering = [Lower('parent__name'), Lower('name')]
@@ -98,17 +113,33 @@ class SubscriptionFolder(models.Model):
 
 
 class Subscription(models.Model):
-    name = models.CharField(null=False, max_length=1024)
+    name = models.CharField(null=False, max_length=1024,
-    description = models.TextField()
+                            help_text='Name of playlist or channel.')
-    original_url = models.CharField(null=False, max_length=1024)
-    thumbnail = models.CharField(max_length=1024)
 
-    provider = models.CharField(null=False, max_length=64)
+    description = models.TextField(help_text='Description of the playlist/channel.')
-    provider_id = models.CharField(null=False, max_length=64)
-    provider_data = models.CharField(null=True, max_length=1024)
 
-    parent_folder = models.ForeignKey(SubscriptionFolder, on_delete=models.CASCADE, null=True, blank=True)
+    original_url = models.CharField(null=False, max_length=1024,
-    user = models.ForeignKey(User, on_delete=models.CASCADE)
+                                    help_text='Original URL added by user.')
+
+    thumbnail = models.CharField(max_length=1024,
+                                 help_text='An URL to the thumbnail.')
+
+    #
+    provider = models.ForeignKey(Provider, null=True, on_delete=models.SET_DEFAULT,
+                                 help_text='Provider who manages this subscription (e.g. YouTube, Vimeo etc)')
+
+    provider_id = models.CharField(null=False, max_length=64,
+                                   help_text='Identifier according to provider (e.g. YouTube video ID)')
+
+    provider_data = models.CharField(null=True, max_length=1024,
+                                     help_text='Extra data stored by the provider serialized as JSON')
+
+    #
+    parent_folder = models.ForeignKey(SubscriptionFolder, on_delete=models.CASCADE, null=True, blank=True,
+                                      help_text='Parent folder')
+
+    user = models.ForeignKey(User, on_delete=models.CASCADE,
+                             help_text='Owner user')
 
     # overrides
     auto_download = models.BooleanField(null=True, blank=True)

app/YtManagerApp/views/index.py

@@ -10,10 +10,10 @@ from django.views.generic import CreateView, UpdateView, DeleteView, FormView
 from django.views.generic.edit import FormMixin
 from django.conf import settings
 from django.core.paginator import Paginator
-from YtManagerApp.management.videos import get_videos
+from YtManagerApp.services.videos import get_videos
 from YtManagerApp.models import Subscription, SubscriptionFolder, VIDEO_ORDER_CHOICES, VIDEO_ORDER_MAPPING
-from YtManagerApp.management.services import Services
+from YtManagerApp.services import Services
-from YtManagerApp.utils import youtube, subscription_file_parser
+from YtManagerApp.utils import subscription_file_parser
 from YtManagerApp.views.controls.modal import ModalMixin
 
 import logging