5b2cb762cc
- `index.js` als Client-Komponente deklariert (`"use client"`) zur Vermeidung von SSR-Problemen. - `useEffect` optimiert, um unendliche API-Requests durch `isMounted`-Check zu verhindern. - `loadData()` angepasst, um API-Fehler korrekt abzufangen und erneute Ladeversuche zu vermeiden. - Doppelte Registrierung von `poiReadFromDbTriggerAtom` durch HMR verhindert. - Ungültige MySQL-Option `acquireTimeout` entfernt, um Verbindungsfehler zu beheben. Diese Änderungen verhindern unerwartete Reloads und verbessern die Stabilität der Anwendung.
70 lines
2.0 KiB
JavaScript
70 lines
2.0 KiB
JavaScript
import mysql from "mysql";
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const dbConfig = {
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host: process.env.DB_HOST,
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user: process.env.DB_USER,
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password: process.env.DB_PASSWORD,
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database: process.env.DB_NAME,
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port: process.env.DB_PORT,
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};
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const connection = mysql.createConnection(dbConfig);
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connection.connect((err) => {
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if (err) {
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console.error("Fehler beim Verbinden:", err.stack);
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return;
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}
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console.log("Database connected successfully.");
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});
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export default function handler(req, res) {
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const idMap = req.query.idMap;
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if (req.method !== "GET") {
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return res.status(405).json({ error: "Nur GET Methode erlaubt" });
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}
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connection.query(`
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SELECT
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ld.idLD,
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dp.idDP,
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dp.name AS Na,
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dp.value AS Val,
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dp.unit AS Unit,
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mg.name AS Gr,
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ld.idLocation,
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area.Name AS Area_Name
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FROM location_device as ld
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LEFT JOIN location_coordinates AS co ON ld.idLocation = co.idLocation and co.idMaps = ${idMap}
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LEFT JOIN devices AS de ON de.idDevice = ld.idDevice
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LEFT JOIN datapoint AS dp ON ld.idLD = dp.idLD
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LEFT JOIN message_group AS mg ON dp.idmessage_group = mg.idmessage_group
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LEFT JOIN location AS loc ON ld.idLocation = loc.idLocation
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LEFT JOIN area AS area ON loc.idArea = area.idArea
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WHERE co.X > 0 AND dp.idmessage_group>0 AND length(dp.unit)> 0 AND length(dp.value)> 0
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`, (error, results) => {
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if (error) {
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console.error("Fehler beim Abrufen der gis_lines:", error);
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return res
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.status(500)
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.json({ error: "Fehler beim Abrufen der gis_lines" });
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}
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const response = {
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"Name": "Liste aller Messungen der Geraete",
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"Zeitstempel": new Date().toISOString(),
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"IdMap":idMap,
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"Statis": results.map((row) => ({
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IdLD: row.idLD,
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IdDP: row.idDP,
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Na: row.Na,
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Val: row.Val,
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Unit: row.Unit,
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Gr: row.Gr,
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IdLocation: row.IdLocation,
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Area_Name: row.Area_Name,
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})),
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};
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res.json(response);
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});
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} |