initial feature/react-migration commit

dashboard-dash-backup/callbacks/users_callbacks.py

@@ -0,0 +1,24 @@
+# dashboard/callbacks/users_callbacks.py
+import dash
+from dash import Input, Output, State, dcc
+from flask import session
+from utils.db import execute_query, execute_non_query
+from utils.auth import hash_password
+
+@dash.callback(
+    Output("users-feedback", "children"),
+    Input("btn-new-user", "n_clicks"),
+    State("input-new-username", "value"),
+    State("input-new-password", "value"),
+    State("input-new-role", "value"),
+    prevent_initial_call=True
+)
+def create_user(n_clicks, uname, pwd, role):
+    if session.get("role") != "admin":
+        return "Keine Berechtigung."
+    if n_clicks and n_clicks > 0:
+        pwd_hash = hash_password(pwd)
+        sql = "INSERT INTO users (username, pwd_hash, role) VALUES (%s, %s, %s)"
+        rc = execute_non_query(sql, (uname, pwd_hash, role))
+        return "Benutzer erstellt." if rc else "Fehler beim Erstellen."
+    return ""