added backend implementation

backend/models/orderingInfoIssueSlipsModel.js

@@ -0,0 +1,72 @@
+import ownConn from "../dbConfig.js";
+
+//get single ordering info issue slip
+export const getOrderingInfoIssueSlipById = async (id, result) => {
+    try {
+        let sql = `SELECT * FROM orderingInfoIssueSlips WHERE issueSlipID = ? ORDER BY primaryID ASC`;
+        const results = await ownConn.execute(sql, [id])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+// Update ordering info issue slip to Database
+export const updateOrderingInfoIssueSlipById = async (data, result) => {
+    try {
+        const id = data.primaryID;
+        let sql = `UPDATE orderingInfoIssueSlips SET issueSlipID = ?, article = ? , amount = ?, price = ?, comment = ? WHERE primaryID = ?`;
+        const results = await ownConn.query(sql, [data.issueSlipID, data.article, data.amount, data.price, data.comment, id])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+
+// Delete ordering info issue slip to Database
+export const deleteOrderingInfoIssueSlipById = async (id, result) => {
+    try {
+        let sql = `DELETE FROM orderingInfoIssueSlips WHERE primaryID = ?`;
+        const results = await ownConn.query(sql, [id])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+// Delete ordering info issue slip by issueSlipID to Database
+export const deleteOrderingInfoIssueSlipByIssueSlipId = async (id, result) => {
+    try {
+        let sql = `DELETE FROM orderingInfoIssueSlips WHERE issueSlipID = ?`;
+        const results = await ownConn.query(sql, [id])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};
+
+//insert ordering info issue slip to databased
+export const insertOrderingInfoIssueSlip = async (data, result) => {
+    try {
+        const results = await ownConn.query(`INSERT INTO orderingInfoIssueSlips(issueSlipID, article, amount, price, comment) VALUES(?, ?, ?, ?, ?)`, [data.issueSlipID, data.article, data.amount, data.price, data.comment])
+        result(null, results);
+    }
+    catch (err) {
+        // Manage Errors
+        console.log("SQL error : ", err);
+        result(err, null);
+    }
+};