I have a form that submits using AJAX and wp_mail(). I insert the form on the page using a shortcode. Now the problem is that even if the message is not sent, it still shows a message about successful sending. I wanted to bind to the response, but there I receive data in the form: Response data in console
How do I process my response so that the form about successful submission is not shown if there is an error during validation?
add_shortcode('contact-form', 'display_contact_form');
function display_contact_form()
{
$validation_messages = [];
if (isset($_POST['contact_form'])) {
//Sanitize the data
$full_name = isset($_POST['full_name']) ? sanitize_text_field($_POST['full_name']) : '';
$email = isset($_POST['email']) ? sanitize_text_field($_POST['email']) : '';
$message = isset($_POST['message']) ? sanitize_textarea_field($_POST['message']) : '';
//Validate the data
if (strlen($full_name) === 0) {
$validation_messages[] = esc_html__('Please enter a valid name.');
}
if (
strlen($email) === 0 or
!is_email($email)
) {
$validation_messages[] = esc_html__('Please enter a valid email address.');
}
if (strlen($message) === 0) {
$validation_messages[] = esc_html__('Please enter a valid message.');
}
//Send an email to the WordPress administrator if there are no validation errors
if (empty($validation_messages)) {
$mail = get_option('admin_email');
$subject = 'New message from ' . $full_name;
$message = $message . ' - The email address of the customer is: ' . $mail;
wp_mail($mail, $subject, $message);
}
}
//Display the validation errors
if (!empty($validation_messages)) {
foreach ($validation_messages as $validation_message) {
echo '<div >' . esc_html($validation_message) . '</div>';
}
}
?>
<!-- Echo a container used that will be used for the JavaScript validation -->
<div id="validation-messages-container"></div>
<form id="contact-form" action="<?php echo esc_url(get_permalink()); ?>" method="post">
<input type="hidden" name="contact_form">
<div >
<input type="text" id="full-name" name="full_name" placeholder="Name">
</div>
<div >
<input type="text" id="email" name="email" placeholder="Email">
</div>
<div >
<textarea id="message" name="message" placeholder="Write something..."></textarea>
</div>
<button type="submit" id="contact-form-submit">
<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M1.81818 4.85279L9.39603 11.5887C9.74047 11.8948 10.2595 11.8948 10.604 11.5887L18.1818 4.85279V15.4547C18.1818 15.9567 17.7748 16.3637 17.2727 16.3637H2.72727C2.22519 16.3637 1.81818 15.9567 1.81818 15.4547V4.85279ZM3.1865 3.63647H16.8134L9.99995 9.69288L3.1865 3.63647Z" fill="white" />
</svg>
Submit Message
</button>
</form>
<div id="success-messages-container"></div>
<?php
}
add_action('wp_ajax_display_contact_form', 'display_contact_form');
add_action('wp_ajax_nopriv_display_contact_form', 'display_contact_form');$("#submit").click(function (event) {
event.preventDefault();
var userName = $("#full-name").val();
var userEmail = $("#email").val();
var userMessage = $("#message").val();
var formData = $("#contact-form").val();
$.ajax({
type: "POST",
dataType: "html",
url: "/wp-admin/admin-ajax.php",
data: {
action: "display_contact_form",
contact_form: formData,
full_name: userName,
email: userEmail,
message: userMessage,
},
success: function (response) {
console.log(response);
$("#success-messages-container").append(
"<p>Your message has been successfully delivered</p>"
);
},
});
});CodePudding user response：
You can try these changes. I added some comments in php code.
Your php code:
add_shortcode('contact-form', 'display_contact_form');
function display_contact_form()
{
$validation_messages = [];
if (isset($_POST['contact_form'])) {
//Sanitize the data
$full_name = isset($_POST['full_name']) ? sanitize_text_field($_POST['full_name']) : '';
$email = isset($_POST['email']) ? sanitize_text_field($_POST['email']) : '';
$message = isset($_POST['message']) ? sanitize_textarea_field($_POST['message']) : '';
// object with response data
$response = (object) [
'success' => false,
'error' => ''
];
//Validate the data
if (strlen($full_name) === 0) {
$validation_messages[] = esc_html__('Please enter a valid name.');
}
if (
strlen($email) === 0 or
!is_email($email)
) {
$validation_messages[] = esc_html__('Please enter a valid email address.');
}
if (strlen($message) === 0) {
$validation_messages[] = esc_html__('Please enter a valid message.');
}
//Send an email to the WordPress administrator if there are no validation errors
if (empty($validation_messages)) {
$mail = get_option('admin_email');
$subject = 'New message from ' . $full_name;
$message = $message . ' - The email address of the customer is: ' . $mail;
// if wp_mail returns true, then success
if (wp_mail($mail, $subject, $message))
$response->success = true;
else
$response->error = 'There was an error while sending email';
} else {
//Display the validation errors
foreach ($validation_messages as $validation_message) {
$response->error .= '<div >' . esc_html($validation_message) . '</div>';
}
}
header('Content-Type: application/json; charset=utf-8');
echo json_encode($response);
exit;
}
?>
<!-- Echo a container used that will be used for the JavaScript validation -->
<div id="validation-messages-container"></div>
<form id="contact-form" action="<?php echo esc_url(get_permalink()); ?>" method="post">
<input type="hidden" name="contact_form">
<div >
<input type="text" id="full-name" name="full_name" placeholder="Name">
</div>
<div >
<input type="text" id="email" name="email" placeholder="Email">
</div>
<div >
<textarea id="message" name="message" placeholder="Write something..."></textarea>
</div>
<button type="submit" id="contact-form-submit">
<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M1.81818 4.85279L9.39603 11.5887C9.74047 11.8948 10.2595 11.8948 10.604 11.5887L18.1818 4.85279V15.4547C18.1818 15.9567 17.7748 16.3637 17.2727 16.3637H2.72727C2.22519 16.3637 1.81818 15.9567 1.81818 15.4547V4.85279ZM3.1865 3.63647H16.8134L9.99995 9.69288L3.1865 3.63647Z" fill="white" />
</svg>
Submit Message
</button>
</form>
<div id="success-messages-container"></div>
<?php
}
add_action('wp_ajax_display_contact_form', 'display_contact_form');
add_action('wp_ajax_nopriv_display_contact_form', 'display_contact_form');
And your js:
$("#submit").click(function (event) {
event.preventDefault();
var userName = $("#full-name").val();
var userEmail = $("#email").val();
var userMessage = $("#message").val();
var formData = $("#contact-form").val();
$.ajax({
type: "POST",
dataType: "html",
url: "/wp-admin/admin-ajax.php",
data: {
action: "display_contact_form",
contact_form: formData,
full_name: userName,
email: userEmail,
message: userMessage,
},
success: function (response) {
// maybe this line will be necessary
//response = JSON.parse(response);
if (response.success) {
$("#success-messages-container").html(
"<p>Your message has been successfully delivered</p>"
);
} else
$("#validation-messages-container").html(response.error)
},
});
});