Implement item and loan management routes with CRUD operations

backendV2/routes/admin/database/itemDataMgmt.database.js

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+import mysql from "mysql2";
+import dotenv from "dotenv";
+dotenv.config();
+
+const pool = mysql
+  .createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_NAME,
+  })
+  .promise();
+
+export const getAllItems = async () => {
+  const [result] = await pool.query("SELECT * FROM items");
+  if (result.length > 0) return { success: true, data: result };
+  return { success: false };
+};
+
+export const deleteItemById = async (itemId) => {
+  const [result] = await pool.query("DELETE FROM items WHERE id = ?", [itemId]);
+  if (result.affectedRows > 0) return { success: true };
+  return { success: false };
+};
+
+export const createItem = async (item_name, can_borrow_role, in_safe) => {
+  const [result] = await pool.query(
+    "INSERT INTO items (item_name, can_borrow_role, in_safe) VALUES (?, ?, ?)",
+    [item_name, can_borrow_role, in_safe]
+  );
+  if (result.affectedRows > 0) return { success: true };
+  return { success: false };
+};
+
+export const editItemById = async (itemId, item_name, can_borrow_role) => {
+  const [result] = await pool.query(
+    "UPDATE items SET item_name = ?, can_borrow_role = ? WHERE id = ?",
+    [item_name, can_borrow_role, itemId]
+  );
+  if (result.affectedRows > 0) return { success: true };
+  return { success: false };
+};

backendV2/routes/admin/database/loanDataMgmt.database.js

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+import mysql from "mysql2";
+import dotenv from "dotenv";
+dotenv.config();
+
+const pool = mysql
+  .createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_NAME,
+  })
+  .promise();
+
+export const getAllLoans = async () => {
+  const [rows] = await pool.query("SELECT * FROM loans");
+  return { success: true, data: rows };
+};
+
+export const deleteLoanById = async (loanId) => {
+  const [result] = await pool.query("DELETE FROM loans WHERE id = ?", [loanId]);
+  if (result.affectedRows > 0) return { success: true };
+  return { success: false };
+};