As an experienced website operations expert, I know that every detail can affect user experience and even the overall conversion rate of the website.In the content management system, providing clear user guidance is the key to improving form filling efficiency.Today, let's delve into how to cleverly add a placeholder prompt 'Please enter the captcha' to the captcha input box in AnQiCMS (AnQi CMS) templates, making your website forms more user-friendly.

AnQiCMS with its flexible template engine and powerful feature set provides a wide space for customized website development.It adopts syntax similar to the Django template engine, allowing those familiar with front-end development to get started easily.In the scenario of handling user submitted information, such as website message or comment features, captcha is an indispensable security mechanism.And a intuitive placeholder can effectively reduce users' confusion and guide them smoothly through the operation.

First step: Backend settings——Ensure that the captcha feature is enabled

Before modifying the template code, we need to confirm that the captcha feature of AnQiCMS backend is enabled.This is a crucial premise because only when the background functionality is enabled, the frontend captcha image and verification logic can work normally.You need to log in to the AnQiCMS backend management interface, usually found under the submenus of "Function Management" or "System SettingsHere, you will see the configuration options to enable or disable the captcha.Please make sure it is activated, otherwise, even if the front-end code is correct, the captcha will not display normally.

Second step: Locate the template file——Find your captcha area

Template files are usually stored in AnQiCMS,/templatedirectory, and named with.htmlAs a file extension. For comment or review form, the captcha input box is usually present in such asguestbook/index.html(comment page) or some local template that includes a comment form such aspartial/comment.html）in it.

You can find and edit files according to the specific functions and template structure of the website under the 'Template Design' menu in the background, or directly access the template directory on the server via FTP/SFTP.Finding the corresponding template file that contains the captcha input box is the basis for the next step.

Third step: Inject placeholder - Modify or add code

Once the template code snippet that carries the captcha function is located, we can proceed to add placeholders.AnQiCMS provides a special tag and配套JavaScript code for captcha to ensure the dynamic loading and correct verification of the captcha.

The following is the captcha code snippet recommended by AnQiCMS, which not only includes the captcha input box but also the image display logic for the captcha image,<img>Label and dynamic loading logic:

<div style="display: flex; clear: both">
  <input type="hidden" name="captcha_id" id="captcha_id">
  <input type="text" name="captcha" required placeholder="请填写验证码" class="layui-input" style="flex: 1">
  <img src="" id="get-captcha" style="width: 150px;height: 56px;cursor: pointer;" />
  <script>
    document.getElementById('get-captcha').addEventListener("click", function (e) {
      fetch('/api/captcha')
              .then(response => {
                return response.json()
              })
              .then(res => {
                document.getElementById('captcha_id').setAttribute("value", res.data.captcha_id)
                document.getElementById('get-captcha').setAttribute("src", res.data.captcha)
              }).catch(err =>{console.log(err)})
    });
    document.getElementById('get-captcha').click(); // 页面加载时自动获取一次验证码
  </script>
</div>

Please note this line in particular:

<input type="text" name="captcha" required placeholder="请填写验证码" class="layui-input" style="flex: 1">

Here are theplaceholder="请填写验证码"This is the effect we want to achieve.If your template already contains this code, congratulations, the placeholder hint already exists.If not included, you can paste the entire code snippet next to the captcha image or in the input box location.

Let's briefly analyze the composition of this code:

  • <input type="hidden" name="captcha_id" id="captcha_id">This is a hidden field used to store the unique ID of the captcha session. The server will verify whether the captcha entered by the user is correct based on this ID.
  • <input type="text" name="captcha" ...>This is the actual input box for the captcha.type="text"It defines the input type,name="captcha"is the field name that the server receives the captcha value from when the form is submitted,placeholder="请填写验证码"and provides user-friendly prompt information.requiredThe property ensures that the user must fill in this field.class="layui-input"andstyle="flex: 1"It may be to adapt to a specific front-end framework or style. You can adjust according to the actual situation.
  • <img src="" id="get-captcha" ...>This<img>The tag is used to display the captcha image.id="get-captcha"It is an important identifier for JavaScript to get and update images. It is usually set to be clickable so that users can refresh the captcha.
  • <script>...</script>This JavaScript code is responsible for interacting with the backend API (/api/captcha) to dynamically obtain the new verification code image URL andcaptcha_id, and update the front-end's<img>tags and hidden <input>Field. It will also trigger the display of the captcha once the page is loaded automatically.

If you prefer to use jQuery, the corresponding JavaScript part can be replaced with:

<script>
  // jQuery 调用方式
  $('#get-captcha').on("click", function (e) {
    $.get('/api/captcha', function(res) {
      $('#captcha_id').attr("value", res.data.captcha_id)
      $('#get-captcha').attr("src", res.data.captcha)
    }, 'json')
  })
  $('#get-captcha').click(); // 页面加载时自动获取一次验证码
</script>

No matter which JavaScript implementation you choose, the core is to ensureplaceholderthe property is added correctly totype="text"the captcha input box.

Fourth step: Test and Optimize - Ensure smooth user experience

Complete the template modification and then conduct a comprehensive test.Clear the browser cache, visit a form page with a captcha, and check if the placeholder 'Please enter the captcha' is displayed correctly.Try clicking on the captcha image to see if it can refresh to a new captcha.Finally, submit the form and ensure the verification process is all normal.

If any style issues arise, such as input boxes not aligning with images, you can make fine adjustmentsdivContainer,inputandimgThe CSS style of the label, keeping it consistent with the overall design style of your website. A beautiful and functional captcha area will undoubtedly leave a better impression on users.

Summary

Through the above steps, we not only added a clear placeholder prompt to the captcha input box in the AnQiCMS template, but also deeply understood the implementation details of this feature in the technical aspect.This seemingly minor change actually reflects the craftsmanship and flexibility of AnQiCMS in user experience.As a website operator, focusing on and optimizing these touchpoints will be a powerful weapon for you to improve the overall performance of your website.

Common Questions (FAQ)

  1. How do I solve the problem that the verification code image does not display or the refresh button is invalid?This usually means that the backend captcha service is not running or there is an issue with the frontend JavaScript code.Firstly, please make sure that you have enabled the captcha feature in the AnQiCMS backend./api/captchaThe request was successful (HTTP 200 status code returned). If the request failed, you may need to check the server configuration or whether the AnQiCMS service is running normally.

  2. Can I customize other prompts besides "Please enter the captcha?"Of course you can. The placeholder text is completely customizable. You just need to modify the template code inplaceholder="...Property quote content, for example, change it toplaceholder="输入图形验证码"After saving the template file, refresh the page to see the new hints.

  3. My website's registration, login, and other modules also require captcha, is this method applicable?The captcha mechanism of AnQiCMS is usually universal, as long as it is calledfetch('/api/captcha')or$.get('/api/captcha')API to get verification code image andcaptcha_idand pass the user input value throughname="captcha"field submitted by the form, theoretically all can be added with a similar method placeholder