Add custom meta box with html and save to db
/*custom meta box Secondary Form*/
function custom_meta_box_markup($object) {
wp_nonce_field(basename(__FILE__), "meta-box-nonce");
?>
<div>
<?php
$checkbox_value_one = get_post_meta($object->ID, "meta-box-checkbox-one", true);
if($checkbox_value_one == "")
{
?>
<input name="meta-box-checkbox-one" type="checkbox" value="true">
<?php
}
else if($checkbox_value_one == "true")
{
?>
<input name="meta-box-checkbox-one" type="checkbox" value="true" checked>
<?php
}
?>
<label for="meta-box-checkbox-one">Form 1 Completed</label>
</div>
<div>
<?php
$checkbox_value_two = get_post_meta($object->ID, "meta-box-checkbox-two", true);
if($checkbox_value_two == "")
{
?>
<input name="meta-box-checkbox-two" type="checkbox" value="true">
<?php
}
else if($checkbox_value_two == "true")
{
?>
<input name="meta-box-checkbox-two" type="checkbox" value="true" checked>
<?php
}
?>
<label for="meta-box-checkbox-one">Form 2 Completed</label>
</div>
<?php
}
function add_custom_meta_box()
{
add_meta_box("demo-meta-box", "Admin Actions", "custom_meta_box_markup", "shop_order", "side", "high", null);
}
add_action("add_meta_boxes", "add_custom_meta_box");
function save_custom_meta_box($post_id, $post, $update)
{
if (!isset($_POST["meta-box-nonce"]) || !wp_verify_nonce($_POST["meta-box-nonce"], basename(__FILE__)))
return $post_id;
if(!current_user_can("edit_post", $post_id))
return $post_id;
if(defined("DOING_AUTOSAVE") && DOING_AUTOSAVE)
return $post_id;
$slug = "shop_order";
if($slug != $post->post_type)
return $post_id;
$meta_box_checkbox_value_one = "";
$meta_box_checkbox_value_two = "";
if(isset($_POST["meta-box-checkbox-one"]))
{
$meta_box_checkbox_value_one = $_POST["meta-box-checkbox-one"];
}
update_post_meta($post_id, "meta-box-checkbox-one", $meta_box_checkbox_value_one);
if(isset($_POST["meta-box-checkbox-two"]))
{
$meta_box_checkbox_value_two = $_POST["meta-box-checkbox-two"];
}
update_post_meta($post_id, "meta-box-checkbox-two", $meta_box_checkbox_value_two);
}
add_action("save_post", "save_custom_meta_box", 10, 3);code type:
Taken from:
https://www.sitepoint.com/adding-custom-meta-boxes-to-wordpress/