Updated database class and FFmpeg download path

In this update, the database class is almost completed (create database from file is still pending) and FFmpeg was configured for converting videos directly to RAM using the /run/user/{uid} path

Design/Database/psql_model.sql

@@ -1,13 +1,13 @@
 -- PostgreSQL model for YouTubeMDBot application
 -- Created by Javinator9889 - thu, 24 October, 2019
--- Last modification: mon, 4 November, 2019
--- Version 1.1
+-- Last modification: Sat, 29 February, 2020
+-- Version 1.2
 
 -- DROP schema - only for testing
--- DROP SCHEMA IF EXISTS youtubemd CASCADE;
--- DROP TYPE IF EXISTS AFORMAT;
--- DROP TYPE IF EXISTS aquality;
--- DROP TYPE IF EXISTS behaviour;
+DROP SCHEMA IF EXISTS youtubemd CASCADE;
+DROP TYPE IF EXISTS AFORMAT;
+DROP TYPE IF EXISTS aquality;
+DROP TYPE IF EXISTS behaviour;
 
 -- Custom "enum" types
 CREATE TYPE AFORMAT AS ENUM ('mp3', 'm4a', 'ogg');
@@ -154,9 +154,9 @@ CREATE TABLE IF NOT EXISTS youtubemd.YouTubeStats
 );
 
 -- Additional indexes
-CREATE INDEX youtubemd.user_preferences_ix ON youtubemd.Preferences ("user_id");
-CREATE INDEX youtubemd.video_metadata_ix ON youtubemd.Video_Has_Metadata ("id", "metadata_id");
-CREATE INDEX youtubemd.history_ix ON youtubemd.History ("id", "file_id", "user_id", "metadata_id");
+CREATE INDEX user_preferences_idx ON youtubemd.Preferences ("user_id");
+CREATE INDEX video_metadata_idx ON youtubemd.Video_Has_Metadata ("id", "metadata_id");
+CREATE INDEX history_idx ON youtubemd.History ("id", "file_id", "user_id", "metadata_id");
 
 -- Trigger that updates different stats
 CREATE FUNCTION youtubemd.process_stats() RETURNS trigger AS
@@ -237,21 +237,21 @@ BEGIN
 END;
 $$ LANGUAGE plpgsql;
 
-CREATE FUNCTION youtubemd.clear_daily_stats() AS
+CREATE FUNCTION youtubemd.clear_daily_stats() RETURNS VOID AS
 $$
 BEGIN
     UPDATE youtubemd.YouTubeStats SET daily_requests = 0;
 END;
 $$ LANGUAGE plpgsql;
 
-CREATE FUNCTION youtubemd.clear_weekly_stats() AS
+CREATE FUNCTION youtubemd.clear_weekly_stats() RETURNS VOID AS
 $$
 BEGIN
     UPDATE youtubemd.YouTubeStats SET weekly_requests = 0;
 END;
 $$ LANGUAGE plpgsql;
 
-CREATE FUNCTION youtubemd.clear_monthly_stats() AS
+CREATE FUNCTION youtubemd.clear_monthly_stats() RETURNS VOID AS
 $$
 BEGIN
     UPDATE youtubemd.YouTubeStats SET monthly_requests = 0;

YouTubeMDBot/__init__.py

@@ -13,6 +13,7 @@
 #
 #     You should have received a copy of the GNU General Public License
 #    along with this program. If not, see <http://www.gnu.org/licenses/>.
+
 from .logging_utils import LoggingHandler
 from .logging_utils import setup_logging
 

YouTubeMDBot/audio/ffmpeg.py

@@ -15,12 +15,12 @@
 #    along with this program. If not, see <http://www.gnu.org/licenses/>.
 from abc import ABC
 from abc import abstractmethod
-from typing import List
 from subprocess import PIPE
 from subprocess import Popen
+from typing import List
 
-from ..constants import FFMPEG_OPENER
 from ..constants import FFMPEG_CONVERTER
+from ..constants import FFMPEG_OPENER
 from ..constants import FFMPEG_VOLUME
 
 
@@ -145,7 +145,7 @@ def convert(self) -> int:
         :raises NotImplementedError when trying to access this method directly on super
         class.
         """
-        raise NotImplementedError
+        return self.process()
 
 
 class FFmpegMP3(FFmpegExporter):
@@ -162,7 +162,7 @@ def convert(self) -> int:
         command.append("-f")
         command.append("mp3")
         command.append("-")
-        return self.process()
+        return super().convert()
 
 
 class FFmpegOGG(FFmpegExporter):
@@ -179,7 +179,7 @@ def convert(self) -> int:
         command.append("-f")
         command.append("ogg")
         command.append("-")
-        return self.process()
+        return super().convert()
 
 
 class FFmpegM4A(FFmpegExporter):
@@ -202,4 +202,4 @@ def convert(self) -> int:
         command.append("-f")
         command.append("ipod")
         command.append(self.filename)
-        return self.process()
+        return super().convert()