fixed error handling for edit commands

Commands.py

@@ -192,6 +192,12 @@ class Commands:
             session.commit()
 
             loc_str = location.__str__()
+        except IntegrityError:
+            session.rollback()
+            raise EntryNameNotUniqueError
+        except DataError:
+            session.rollback()
+            raise DatabaseValueError
         except IndexError:
             raise LocationLookUpError
         finally:
@@ -215,6 +221,12 @@ class Commands:
             loc_str = location.__str__()
 
             session.commit()
+        except IntegrityError:
+            session.rollback()
+            raise EntryNameNotUniqueError
+        except DataError:
+            session.rollback()
+            raise DatabaseValueError
         except IndexError:
             raise LocationLookUpError
         finally:
@@ -232,6 +244,13 @@ class Commands:
             location.name = new_name
             loc_str = location.__str__()
             session.commit()
+
+        except IntegrityError:
+            session.rollback()
+            raise EntryNameNotUniqueError
+        except DataError:
+            session.rollback()
+            raise DatabaseValueError
         except IndexError:
             raise LocationLookUpError
         finally:

Geoffrey.py

@@ -355,6 +355,8 @@ async def edit_tunnel(ctx, tunnel_color: str, tunnel_number: int, * args):
     except LocationLookUpError:
         await bot.say('{}, you do not have a location called **{}**.'.format(
             ctx.message.author.mention, loc))
+    except InvalidTunnelError:
+        await bot.say('{}, {} is an invalid tunnel color.'.format(ctx.message.author.mention, tunnel_color))
 
 @commands.cooldown(5, 60, commands.BucketType.user)
 @bot.command(pass_context=True)