Switching to fetchval

geeksbot.py

@@ -62,15 +62,15 @@ class Geeksbot(commands.Bot):
                                         user={self.bot_secrets['db_con']['user']}\
                                         password={self.bot_secrets['db_con']['password']}")
         del self.bot_secrets['db_con']
-        self.default_prefix = 'g$'
+        self.default_prefix = 'g~'
         self.voice_chans = {}
         self.spam_list = {}
         self.gcs_service = build('customsearch', 'v1', developerKey=self.bot_secrets['google_search_key'])
 
     @staticmethod
     async def get_custom_prefix(bot_inst, message):
-        return bot_inst.db_con.fetch('select prefix from guild_config where guild_id = $1',
-                                     message.guild.id) or bot_inst.default_prefix
+        return bot_inst.db_con.fetchval('select prefix from guild_config where guild_id = $1',
+                                        message.guild.id) or bot_inst.default_prefix
 
     async def load_ext(self, ctx, mod=None):
         self.load_extension('{0}.{1}'.format(extension_dir, mod))
@@ -122,14 +122,14 @@ async def unload(ctx, mod):
 async def on_message(ctx):
     if not ctx.author.bot:
         if ctx.guild:
-            if int(bot.db_con.fetchrow("select channel_lockdown from guild_config where guild_id = $1",
+            if int(bot.db_con.fetchval("select channel_lockdown from guild_config where guild_id = $1",
                                        ctx.guild.id)):
-                if ctx.channel.id in json.loads(bot.db_con.fetchrow("select allowed_channels from guild_config "
+                if ctx.channel.id in json.loads(bot.db_con.fetchval("select allowed_channels from guild_config "
                                                                     "where guild_id = $1",
                                                                     ctx.guild.id)):
                     await bot.process_commands(ctx)
             elif ctx.channel.id == 418452585683484680:
-                prefix = bot.db_con.fetchrow('select prefix from guild_config where guild_id = $1', ctx.guild.id)
+                prefix = bot.db_con.fetchval('select prefix from guild_config where guild_id = $1', ctx.guild.id)
                 prefix = prefix[0] if prefix else bot.default_prefix
                 ctx.content = f'{prefix}{ctx.content}'
                 await bot.process_commands(ctx)