chore: remove CSV export functionality from AppController and SalesDAO

Author: tsviz

src/main/java/net/codejava/AppController.java

@@ -200,25 +200,6 @@ public String clearRecord(@PathVariable(name = "serialNumber") String serialNumb
 		return handleSale(sale, session, redirectAttributes, () -> dao.clearRecord(serialNumber));
 	}
 
-	@RequestMapping("/export")
-	public void exportToCSV(HttpServletResponse response) throws IOException {
-		response.setContentType("text/csv");
-		response.setHeader("Content-Disposition", "attachment; filename=sales.csv");
-		List<Sale> listSale = dao.listAll();
-		// create a writer
-		BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(response.getOutputStream()));
-		// write header line
-		writer.write("Serial Number, Date, Amount, Item Name");
-		writer.newLine();
-		// write data lines
-		for (Sale sale : listSale) {
-			String line = String.format("%s, %s, %s, %s", sale.getSerialNumber(), sale.getDate(), sale.getAmount(), sale.getItem());
-			writer.write(line);
-			writer.newLine();
-		}
-		writer.flush();
-	}
-
 	@PostMapping("/import")
 	public String uploadFile(@RequestParam("file") MultipartFile file, RedirectAttributes redirectAttributes) {
 		try {

src/main/java/net/codejava/SalesDAO.java

@@ -118,13 +118,6 @@ public Page<Sale> findAll(Pageable pageable) {
 		return new PageImpl<>(sales, pageable, total);
 	}
 
-	// a method to returns a list of all sales in a jdbctemplate query to use as a csv output
-	public List<Sale> listAll() {
-		String sql = "SELECT * FROM sales ORDER BY serial_number ASC";
-		List<Sale> listSale = jdbcTemplate.query(sql, BeanPropertyRowMapper.newInstance(Sale.class));
-		return listSale;
-	}
-
 	// save all sales in a list
 	public void saveAll(List<Sale> sales) {
 		if (sales == null) {

src/main/resources/templates/index.html

@@ -21,7 +21,6 @@
     <div align="center" th:if="${listSale}">
         <h1>Inventory Records</h1>
         <a href="/new" class="modern-button">Enter New Product</a>
-        <a href="/export" class="modern-button">Export to CSV</a>
         <form id="uploadForm" style="display: none;">
             <input type="file" id="csvFile" name="file" accept=".csv">
             <button type="submit" id="submitBtn">Submit</button>
@@ -47,7 +46,6 @@ <h1>Inventory Records</h1>
         </div>
         <br />
         <form th:action="@{/logout}" method="post">
-            <!-- <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}" /> -->
             <input type="submit" value="Logout" />
         </form>
         <br />