Faster way to initialize playlists on the Plex side

- Partially fixes #578

resources/lib/playlists/plex_pl.py

@@ -28,14 +28,7 @@ def create(playlist):
     if not plex_ids:
         LOG.warning('No Plex ids found for playlist %s', playlist)
         raise PlaylistError
-    for pos, plex_id in enumerate(plex_ids):
-        try:
-            if pos == 0 or not playlist.plex_id:
-                pms.initialize(playlist, plex_id)
-            else:
-                pms.add_item(playlist, plex_id=plex_id)
-        except PlaylistError:
-            continue
+    pms.add_items(playlist, plex_ids)
     db.update_playlist(playlist)
     LOG.debug('Done creating Plex playlist %s', playlist)
 

resources/lib/playlists/pms.py

@@ -12,7 +12,7 @@ from .common import PlaylistError
 
 from ..plex_api import API
 from ..downloadutils import DownloadUtils as DU
-from .. import variables as v
+from .. import app, variables as v
 ###############################################################################
 LOG = getLogger('PLEX.playlists.pms')
 
@@ -97,6 +97,34 @@ def add_item(playlist, plex_id):
     playlist.plex_updatedat = api.updated_at()
 
 
+def add_items(playlist, plex_ids):
+    """
+    Adds all plex_ids (a list of ints) to a new Plex playlist.
+    Will set playlist.plex_updatedat
+    Raises PlaylistError if that did not work out.
+    """
+    params = {
+        'type': v.PLEX_PLAYLIST_TYPE_FROM_KODI[playlist.kodi_type],
+        'title': playlist.plex_name,
+        'smart': 0,
+        'uri': ('server://%s/com.plexapp.plugins.library/library/metadata/%s'
+                % (app.CONN.machine_identifier, ','.join(plex_ids)))
+    }
+    xml = DU().downloadUrl(url='{server}/playlists/',
+                           action_type='POST',
+                           parameters=params)
+    try:
+        xml[0].attrib
+    except (TypeError, IndexError, AttributeError):
+        LOG.error('Could not add items to a new playlist %s on Plex side',
+                  playlist)
+        raise PlaylistError('Could not add items to a new Plex playlist %s' %
+                            playlist)
+    api = API(xml[0])
+    playlist.plex_id = api.plex_id()
+    playlist.plex_updatedat = api.updated_at()
+
+
 def metadata(plex_id):
     """
     Returns an xml with the entire metadata like updatedAt.