added backend implementation

backend/models/masterMaintenanceVisitsModel.js

@@ -0,0 +1,99 @@
+import ownConn from "../dbConfig.js";
+
+//get all master maintenance visits
+export const getMasterMaintenanceVisits = async (result) => {
+    try {
+        let sql = `SELECT * FROM masterMaintenanceVisits ORDER BY name ASC`;
+        const results = await ownConn.execute(sql)
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+//get all selected master maintenance visits by customer
+export const getSelectedMasterMaintenanceVisitsByCustomer = async (selected, result) => {
+    try {
+        let sql = `SELECT * FROM masterMaintenanceVisits WHERE customer LIKE '%${selected}%' ORDER BY customer ASC`;
+        const results = await ownConn.execute(sql)
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+//get all selected master maintenance visits by checklistname
+export const getSelectedMasterMaintenanceVisitsByChecklistname = async (selected, result) => {
+    try {
+        let sql = `SELECT * FROM masterMaintenanceVisits WHERE name LIKE '%${selected}%' ORDER BY name ASC`;
+        const results = await ownConn.execute(sql)
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+//get single master maintenance visit
+export const getMasterMaintenanceVisitById = async (id, result) => {
+    try {
+        let sql = `SELECT * FROM masterMaintenanceVisits WHERE checklistID = ?`;
+        const results = await ownConn.execute(sql, [id])
+        result(null, results[0]);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+// Update master maintenance visit to Database
+export const updateMasterMaintenanceVisitById = async (data, result) => {
+    try {
+        const id = data.checklistID;
+        let sql = `UPDATE masterMaintenanceVisits SET name = ?, customerID = ? , customer = ?, type = ?, lastView = ?, user = ?, notes = ? WHERE checklistID = ?`;
+        const results = await ownConn.query(sql, [data.name, data.customerID, data.customer, data.type, data.lastView, data.user, data.notes, id])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+//insert master maintenance visit to databased
+export const insertMasterMaintenanceVisit = async (data, result) => {
+    try {
+        const results = await ownConn.query(`INSERT INTO masterMaintenanceVisits(name, customerID, customer, type, lastView, user, notes) VALUES(?, ?, ?, ?, ?, ?, ?)`, [data.name, data.customerID, data.customer, data.type, data.lastView, data.user, data.notes])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+// Delete master maintenance visit to Database
+export const deleteMasterMaintenanceVisitById = async (id, result) => {
+    try {
+        let sql = `DELETE FROM masterMaintenanceVisits WHERE checklistID = ?`;
+        const results = await ownConn.query(sql, [id])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};