added functional groups api + started pictures

src/db/users.py

@@ -55,7 +55,7 @@ def check_user_existence(
             """,
             (username,),
         )
-        return cur.fetchone()
+        return cur.fetchone()[0]  # type: ignore
 
 def check_user_disabled(
     conn: connection,
@@ -70,7 +70,10 @@ def check_user_disabled(
             """,
             (username,),
         )
-        return cur.fetchone()
+        result = cur.fetchone()
+        if result is None:
+            return None
+        return result[0]  # type: ignore
 
 
 # user updates
@@ -91,6 +94,7 @@ def update_user_disabled(
             (disabled, username),
         )
         conn.commit()
+        return cur.rowcount > 0
 
 def update_user_role(
     conn: connection,
@@ -107,6 +111,7 @@ def update_user_role(
             (role, username),
         )
         conn.commit()
+        return cur.rowcount > 0
 
 
 def update_user_username(
@@ -124,6 +129,7 @@ def update_user_username(
             (newUsername, username),
         )
         conn.commit()
+        return cur.rowcount > 0
 
 def update_user_password(
     conn: connection,
@@ -140,6 +146,7 @@ def update_user_password(
             (password, username),
         )
         conn.commit()
+        return cur.rowcount > 0
 
 
 def update_user_last_seen(
@@ -156,6 +163,7 @@ def update_user_last_seen(
             (username,),
         )
         conn.commit()
+        return cur.rowcount > 0
 
 
 # user receiving
@@ -190,4 +198,7 @@ def get_user_password(
             """,
             (username,),
         )
-        return cur.fetchone()[0]  # type: ignore
+        result = cur.fetchone()
+        if result is None:
+            return None
+        return result[0]  # type: ignore