servers not added

cogs/core.py

@@ -18,6 +18,29 @@ async def on_ready(self):
         print('Username: {}'.format(self.bot.user.name))
         print('------')
 
+        # Get guilds in database
+        with DBase() as db:
+            db = db.get_guilds()
+        db_guilds = []
+        to_delete = []
+        for row in db:
+            guild = self.bot.get_guild(row[0])
+            if guild:
+                db_guilds.append(guild)
+            else:
+                to_delete.append(row[0])
+
+        # Add guilds
+        for guild in self.bot.guilds:
+            if guild not in db_guilds:
+                with DBase() as db:
+                    db.add_guild(guild.id)
+
+        # Remove guilds
+        for guild_id in to_delete:
+            with DBase() as db:
+                db.remove_guild(guild_id)
+
 
     async def on_guild_join(self, guild):
         """Add guild and it's members to database"""

db/dbase.py

@@ -134,9 +134,10 @@ def delete_event(self, guild_id, title):
     def add_guild(self, guild_id):
         sql = """
               INSERT INTO guilds (guild_id)
-              VALUES (%s);
+              VALUES (%s)
+              ON DUPLICATE KEY UPDATE guild_id = %s;
               """
-        self.cur.execute(sql, (guild_id,))
+        self.cur.execute(sql, (guild_id, guild_id))
         self.conn.commit()
 
     def remove_guild(self, guild_id):
@@ -147,6 +148,13 @@ def remove_guild(self, guild_id):
         self.cur.execute(sql, (guild_id,))
         self.conn.commit()
 
+    def get_guilds(self):
+        sql = """
+              SELECT * FROM guilds;
+              """
+        self.cur.execute(sql)
+        return self.cur.fetchall()
+
     def add_user(self, username):
         sql = """
               INSERT INTO users (username)