feat: add entry removal and row saving functionality, enhance admin components with localization

backend/server.js

@@ -6,6 +6,8 @@ import {
   loginAdmin,
   getTableData,
   createEntry,
+  removeEntries,
+  saveRow,
 } from "./services/database.js";
 import { generateToken, authenticate } from "./services/tokenService.js";
 env.config();
@@ -30,6 +32,22 @@ app.post("/lose", async (req, res) => {
   }
 });
 
+
+
+
+
+
+
+// !!!!!!! AUTHORISATION HINZUFÜGEN - DENN GEHT NICHT !!!!!!!!
+
+
+
+
+
+
+
+
+
 app.get("/table-data", authenticate, async (req, res) => {
   const result = await getTableData();
   if (result.success) {
@@ -48,6 +66,24 @@ app.post("/create-entry", async (req, res) => {
   }
 });
 
+app.delete("/remove-entries", async (req, res) => {
+  const result = await removeEntries(req.body.losnummern);
+  if (result) {
+    res.status(200).json({ success: true });
+  } else {
+    res.status(400).json({ success: false });
+  }
+});
+
+app.put("/save-row", async (req, res) => {
+  const result = await saveRow(req.body);
+  if (result.success) {
+    res.status(200).json({ success: true });
+  } else {
+    res.status(400).json({ success: false });
+  }
+});
+
 app.post("/login", async (req, res) => {
   const { username, password } = req.body;
   const result = await loginAdmin(username, password);

backend/services/database.js

@@ -51,8 +51,6 @@ export async function getTableData() {
   return { success: false };
 }
 
-// Create data from array not working !!!
-
 export async function createEntry(data) {
   let { status } = { status: true };
   for (const item of data) {
@@ -71,3 +69,42 @@ export async function createEntry(data) {
 
   return status;
 }
+
+export async function removeEntries(losnummern) {
+  let { status } = { status: true };
+
+  for (const losnummer of losnummern) {
+    const [result] = await pool.query("DELETE FROM lose WHERE losnummer = ?", [
+      losnummer,
+    ]);
+
+    if (result.affectedRows > 0) {
+      status = true;
+    } else {
+      status = false;
+      break;
+    }
+  }
+
+  return status;
+}
+
+export async function saveRow(payload) {
+  const [result] = await pool.query(
+    "UPDATE lose SET vorname = ?, nachname = ?, adresse = ?, plz = ?, email = ? WHERE losnummer = ?",
+    [
+      payload.vorname,
+      payload.nachname,
+      payload.adresse,
+      payload.plz,
+      payload.email,
+      payload.losnummer,
+    ]
+  );
+
+  if (result.affectedRows > 0) {
+    return { success: true };
+  } else {
+    return { success: false };
+  }
+}

frontend/src/components/Admin.tsx

@@ -22,7 +22,7 @@ const Admin: React.FC = () => {
       {token ? (
         <Table />
       ) : (
-        <div className="p-4">Please log in as an admin.</div>
+        <div className="p-4">Bitte als Admin einloggen. Oder gehe <a className="text-blue-500 hover:underline" href="/">zurück</a>.</div>
       )}
     </>
   );

frontend/src/components/MainForm.tsx

@@ -125,7 +125,7 @@ const MainForm: React.FC = () => {
           Los registrieren
         </button>
         <p className="mt-1 text-xs text-zinc-500">
-          Wenn Sie die Daten eines Loses bearbeiten möchten,{" "}
+          Wenn Sie die Daten eines bereits registrierten Loses bearbeiten möchten,{" "}
           <a
             className="text-blue-600 underline"
             href="mailto:example@example.com"

frontend/src/components/SubHeaderAdmin.tsx

@@ -2,6 +2,7 @@ import React from "react";
 import { Sheet, WholeWord } from "lucide-react";
 import { useState } from "react";
 import ImportGUI from "./ImportGUI";
+import { removeSelection } from "../utils/tableActions";
 
 type SubHeaderAdminProps = {
   setFiles: (files: File[]) => void;
@@ -41,6 +42,9 @@ const SubHeaderAdmin: React.FC<SubHeaderAdminProps> = ({ setFiles, files }) => {
               <span className="whitespace-nowrap">Losnummern importieren</span>
             </button>
             <button
+              onClick={() => {
+                removeSelection();
+              }}
               type="button"
               className="group inline-flex items-center gap-2 rounded-md bg-rose-600 px-3.5 py-2 text-sm font-medium text-white shadow-sm transition hover:bg-rose-500 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-rose-500/60 focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-60"
             >

frontend/src/components/Table.tsx

@@ -2,8 +2,9 @@ import React, { useEffect, useState } from "react";
 import Cookies from "js-cookie";
 import { useQuery } from "@tanstack/react-query";
 import { getTableData, readCachedTableData } from "../utils/userHandler";
-import { EllipsisVertical } from "lucide-react";
+import { Save } from "lucide-react";
 import SubHeaderAdmin from "./SubHeaderAdmin";
+import { addToRemove, rmFromRemove, saveRow } from "../utils/tableActions";
 
 interface DataPackage {
   losnummer: string;
@@ -17,9 +18,12 @@ interface DataPackage {
 
 const Table: React.FC = () => {
   const [rows, setRows] = useState<DataPackage[]>([]); // holds normalized cache view
-  const [error, setError] = useState<string | null>(null);
   const [files, setFiles] = useState<File[]>([]);
 
+  // Einheitliche Input-Styles (nur Tailwind)
+  const inputClasses =
+    "w-full h-10 px-3 rounded-md border border-gray-300 bg-white text-sm text-gray-900 placeholder-gray-400 shadow-sm focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-blue-500";
+
   // Hilfsfunktion zum Einlesen & Normalisieren der LocalStorage-Daten
   const loadFromCache = () => {
     const cached = readCachedTableData<any>();
@@ -48,15 +52,10 @@ const Table: React.FC = () => {
   // Sync normalized cached data into local state whenever query succeeds or cache changes
   useEffect(() => {
     loadFromCache();
+    Cookies.remove("removeArr");
   }, [tableQuery.data]);
 
-  useEffect(() => {
-    if (tableQuery.isError) {
-      setError((tableQuery.error as Error).message);
-    } else {
-      setError(null);
-    }
-  }, [tableQuery.isError, tableQuery.error]);
+  // Fehleranzeige ist aktuell nicht sichtbar (auskommentierte UI).
 
   // Reagieren auf LocalStorage-Änderungen (z.B. in anderen Tabs)
   useEffect(() => {
@@ -69,13 +68,24 @@ const Table: React.FC = () => {
     return () => window.removeEventListener("storage", handler);
   }, []);
 
-  const formatValue = (v: any) =>
-    v === null || v === undefined || v === "" ? "-" : String(v);
+  // Handles input changes for table rows
+  const handleInputChange = (
+    losnummer: string,
+    field: keyof DataPackage,
+    value: string
+  ) => {
+    setRows((prevRows) =>
+      prevRows.map((row) =>
+        row.losnummer === losnummer ? { ...row, [field]: value } : row
+      )
+    );
+  };
 
   return (
     <>
       <SubHeaderAdmin setFiles={setFiles} files={files} />
       <div className="w-full">
+        {/*
         <div className="mb-4 flex items-center gap-3">
           {(tableQuery.isLoading || tableQuery.isFetching) && (
             <span className="text-xs text-blue-600 animate-pulse">
@@ -83,6 +93,7 @@ const Table: React.FC = () => {
             </span>
           )}
           {error && <span className="text-xs text-red-600">{error}</span>}
+
           <button
             type="button"
             onClick={() => tableQuery.refetch()}
@@ -91,55 +102,56 @@ const Table: React.FC = () => {
             Refresh
           </button>
         </div>
-        <div className="overflow-x-auto rounded-lg shadow ring-1 ring-black/5">
+        */}
+        <div className="overflow-auto rounded-lg shadow ring-1 ring-black/5">
           <table className="min-w-full divide-y divide-gray-200 text-sm">
-            <thead className="bg-gray-50">
+            <thead className="bg-gray-50 sticky top-0">
               <tr>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left invisible font-medium uppercase tracking-wide text-gray-600 w-10 min-w-[2.5rem]"
                 >
                   <input type="checkbox" name="" id="" />
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-[10rem] min-w-[10rem]"
                 >
                   Losnummer
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-[14rem] min-w-[14rem]"
                 >
                   Vorname
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-[14rem] min-w-[14rem]"
                 >
                   Nachname
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-[14rem] min-w-[14rem]"
                 >
                   Adresse
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-[14rem] min-w-[14rem]"
                 >
                   PLZ
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-[14rem] min-w-[14rem]"
                 >
                   Email
                 </th>
                 <th
                   scope="col"
-                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600"
+                  className="px-4 py-2 text-left font-medium uppercase tracking-wide text-gray-600 w-12 min-w-[3rem]"
                 ></th>
               </tr>
             </thead>
@@ -147,7 +159,7 @@ const Table: React.FC = () => {
               {rows.length === 0 && !tableQuery.isLoading && (
                 <tr>
                   <td
-                    colSpan={6}
+                    colSpan={8}
                     className="px-4 py-6 text-center text-gray-500"
                   >
                     Keine Daten vorhanden.
@@ -159,33 +171,95 @@ const Table: React.FC = () => {
                   key={row.losnummer ?? idx}
                   className="hover:bg-gray-50 transition-colors"
                 >
-                  <td className="px-4 py-2 font-mono text-xs text-gray-900">
-                    <input type="checkbox" name="" id={row.losnummer} />
+                  <td className="px-4 py-2 font-mono text-xs text-gray-900 w-10 min-w-[2.5rem]">
+                    <input
+                      type="checkbox"
+                      name=""
+                      onChange={(e) => {
+                        if (e.target.checked) {
+                          addToRemove(row.losnummer);
+                        } else {
+                          rmFromRemove(row.losnummer);
+                        }
+                      }}
+                      id={row.losnummer}
+                    />
                   </td>
-                  <td className="px-4 py-2 font-mono text-xs text-gray-900">
-                    {formatValue(row.losnummer)}
+                  <td className="px-4 py-2 font-mono text-xs text-gray-900 w-[10rem] min-w-[10rem]">
+                    {row.losnummer}
                   </td>
-                  <td className="px-4 py-2">
-                    <input type="text" value={formatValue(row.vorname)} />
+                  <td className="px-4 py-2 w-[14rem] min-w-[14rem]">
+                    <input
+                      type="text"
+                      className={inputClasses}
+                      onChange={(e) => {
+                        handleInputChange(
+                          row.losnummer,
+                          "vorname",
+                          e.target.value
+                        );
+                      }}
+                      value={row.vorname ?? ""}
+                    />
                   </td>
-                  <td className="px-4 py-2">
-                    <input type="text" value={formatValue(row.nachname)} />
+                  <td className="px-4 py-2 w-[14rem] min-w-[14rem]">
+                    <input
+                      type="text"
+                      className={inputClasses}
+                      onChange={(e) => {
+                        handleInputChange(
+                          row.losnummer,
+                          "nachname",
+                          e.target.value
+                        );
+                      }}
+                      value={row.nachname ?? ""}
+                    />
                   </td>
                   <td
-                    className="px-4 py-2 max-w-[16rem] truncate"
-                    title={formatValue(row.adresse)}
+                    className="px-4 py-2 w-[14rem] min-w-[14rem]"
+                    title={row.adresse ?? ""}
                   >
-                    <input type="text" value={formatValue(row.adresse)} />
+                    <input
+                      type="text"
+                      className={inputClasses}
+                      onChange={(e) => {
+                        handleInputChange(
+                          row.losnummer,
+                          "adresse",
+                          e.target.value
+                        );
+                      }}
+                      value={row.adresse ?? ""}
+                    />
                   </td>
-                  <td className="px-4 py-2">
-                    <input type="text" value={formatValue(row.plz)} />
+                  <td className="px-4 py-2 w-[14rem] min-w-[14rem]">
+                    <input
+                      type="text"
+                      className={inputClasses}
+                      onChange={(e) => {
+                        handleInputChange(row.losnummer, "plz", e.target.value);
+                      }}
+                      value={row.plz ?? ""}
+                    />
                   </td>
-                  <td className="px-4 py-2">
-                    <input type="text" value={formatValue(row.email)} />
+                  <td className="px-4 py-2 w-[14rem] min-w-[14rem]">
+                    <input
+                      type="text"
+                      className={inputClasses}
+                      onChange={(e) => {
+                        handleInputChange(
+                          row.losnummer,
+                          "email",
+                          e.target.value
+                        );
+                      }}
+                      value={row.email ?? ""}
+                    />
                   </td>
-                  <td className="px-4 py-2">
-                    <button>
-                      <EllipsisVertical />
+                  <td className="px-4 py-2 w-12 min-w-[3rem]">
+                    <button onClick={() => saveRow(row)}>
+                      <Save />
                     </button>
                   </td>
                 </tr>

frontend/src/utils/tableActions.ts

@@ -0,0 +1,58 @@
+import Cookies from "js-cookie";
+import { myToast } from "./toastify";
+import { queryClient } from "../queryClient";
+
+let removeArr: string[] = [];
+
+export const addToRemove = (losnummer: string) => {
+  removeArr.push(losnummer);
+  const rawCookies = Cookies.withConverter({
+    write: (value: string, _name: string) => value,
+  });
+  rawCookies.set("removeArr", JSON.stringify(removeArr));
+};
+
+export const rmFromRemove = (losnummer: string) => {
+  removeArr = removeArr.filter((item) => item !== losnummer);
+  const rawCookies = Cookies.withConverter({
+    write: (value: string, _name: string) => value,
+  });
+  rawCookies.set("removeArr", JSON.stringify(removeArr));
+};
+
+const token = Cookies.get("token");
+
+const headers = {
+  "Content-Type": "application/json",
+  Authorization: `Bearer ${token}`,
+};
+
+export const removeSelection = () => {
+  const selection = Cookies.get("removeArr");
+  if (selection && selection !== "[]") {
+    fetch("http://localhost:8002/remove-entries", {
+      method: "DELETE",
+      headers: headers,
+      body: `{
+      "losnummern": ${selection}
+      }`,
+    }).then((response) => {
+      if (response.ok) {
+        myToast("Einträge erfolgreich entfernt.", "success");
+        queryClient.invalidateQueries({ queryKey: ["table-data"] });
+      } else {
+        myToast("Fehler beim Entfernen der Einträge.", "error");
+      }
+    });
+  } else {
+    myToast("Keine Einträge zum Entfernen ausgewählt.", "info");
+  }
+};
+
+export const saveRow = (data: any) => {
+  fetch("http://localhost:8002/save-row", {
+    method: "PUT",
+    headers: headers,
+    body: JSON.stringify(data),
+  });
+};

frontend/src/utils/userHandler.ts

@@ -7,6 +7,7 @@ export const logoutAdmin = () => {
   myToast("Logged out successfully!", "success");
 };
 
+
 // Fetch table data and store it in localStorage. Returns the parsed data or null on failure.
 export const getTableData = async (token: string) => {
   try {
@@ -32,7 +33,6 @@ export const getTableData = async (token: string) => {
     // Ensure we parse JSON
     const data = await response.json();
     localStorage.setItem("tableData", JSON.stringify(data));
-    myToast("Table data fetched successfully!", "success");
     return data;
   } catch (error: any) {
     myToast(`Error fetching table data! ${error?.message || error}`, "error");