save the data of custom metabox to database - wordpress

I want to save the data of my custom meta box to the corresponding table in a field.
my custom metabox..
add_action( 'admin_init', 'blc_add_custom_link_box', 1 );
add_action( 'save_post', 'blc_save_linkdata' );
function blc_add_custom_link_box() {
add_meta_box(
'backlinkdiv',
'Backlink URL',
'blc_backlink_url_input',
'link',
'normal',
'high'
);
}
function blc_backlink_url_input( $post ) {
// Use nonce for verification
wp_nonce_field( plugin_basename( __FILE__ ), 'blc_noncename' );
// The actual fields for data entry
echo '<input type="text" id="backlink-url" name="backlink_url" value="put your backlink here" size="60" />';
function blc_save_linkdata( $link_id ) {
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return;
if ( !wp_verify_nonce( $_POST['blc_noncename'], plugin_basename( __FILE__ ) ) )
return;
if ( 'link' == $_POST['link_type'] )
{
if ( ! current_user_can( 'edit_page', $link_id ) )
return;
}
else
{
if ( !current_user_can( 'edit_post', $link_id ) )
return;
}
$blc_linkdata = $_POST['blc_link'];
?>
now i want to store the data in to the database table WP_link in a custom field. i got meta box in the link edit admin page . but it cant save the data in database. how it can be save in database table wp_link.
I want know how to save the $blc_linkdata from custom metafield from the link edit page.
Plz help..

You should find this page on the Wordpress Codex useful: http://codex.wordpress.org/Function_Reference/add_post_meta

I would simply use the Meta Box Script from DeluxeBlogTips.
I'm also working on a (huge) site that requires (many) metabox/custom field integrations. Trust me, this will save you lots of time and is well written and thoroughly tested ;)

Related

How to save Meta Data in WordPress back-end with PHP

I am relatively new to Post Meta Data in the WordPress backend using PHP. I have written the code that creates the Meta Data. I need help saving the data for which I have written. It will also need to allow me to edit the data once saved.
In this case its for a text field.
I have created the Meta Data for the input field which displays well in the back-end WordPress admin area.
add_action( 'add_meta_boxes', 'cd_meta_box_add' );
function cd_meta_box_add()
{
add_meta_box( 'my-meta-box-id', 'Job Title', 'cd_meta_box_cb', 'people', 'normal', 'high' );
/* Save post meta on the 'save_post' hook. */
add_action( 'save_post', 'cd_meta_box_add', 10, 2 );
}
function cd_meta_box_cb()
{
echo "<input type='text' name='jobtitle'>";
}
I just need assistance with the code that will save the above Meta Data to the DB and allow for editing and revisions
You were almost there.
The final part of the puzzle is the function that saves the metadata, but first we need to make a few adjustments to your existing code:
add_action( 'save_post', 'cd_meta_box_add', 10, 2 ); has to be moved outside cd_meta_box_add(), and
Change add_action( 'save_post', 'cd_meta_box_add', 10, 2 ); into add_action( 'save_post', 'cd_meta_box_add' ); as this action hook only receives one parameter (the post ID), and
You need to define the function that will process the data (and it can't be cd_meta_box_add as you have it now so we'll create a new one called save_cd_meta_box_data).
/* Save post meta on the 'save_post' hook. */
add_action( 'save_post', 'save_cd_meta_box_data' );
function save_cd_meta_box_data( $post_id ) {
// Autosaving, bail.
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
// #TODO
// You should add some additional security checks here
// eg. nonce, user capabilities, etc, to prevent
// malicious users from doing bad stuff.
/* OK, it's safe for us to save the data now. */
// Make sure that it is set.
if ( ! isset( $_POST['jobtitle'] ) ) {
return;
}
// Sanitize user input.
$my_data = sanitize_text_field( $_POST['jobtitle'] );
// Update the meta field in the database.
update_post_meta( $post_id, '_job_title', $my_data );
}
Now that we're successfully saving the metadata into the database, let's allow the user to view it / edit it:
function cd_meta_box_cb( $post )
{
$job_title = get_post_meta( $post->ID, '_job_title', true );
echo "<input type='text' name='jobtitle' value='" . esc_attr( $job_title ) . "'>";
}
The final code should look like this:
/* Register and display metabox */
add_action( 'add_meta_boxes', 'cd_meta_box_add' );
function cd_meta_box_add()
{
add_meta_box( 'my-meta-box-id', 'Job Title', 'cd_meta_box_cb', 'people', 'normal', 'high' );
}
function cd_meta_box_cb( $post )
{
$job_title = get_post_meta( $post->ID, '_job_title', true );
echo "<input type='text' name='jobtitle' value='" . esc_attr( $job_title ) . "'>";
}
/* Save post meta on the 'save_post' hook. */
add_action( 'save_post', 'save_cd_meta_box_data' );
function save_cd_meta_box_data( $post_id ) {
// Autosaving, bail.
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
// #TODO
// You should add some additional security checks here
// eg. nonce, user capabilities, etc, to prevent
// malicious users from doing bad stuff.
/* OK, it's safe for us to save the data now. */
// Make sure that it is set.
if ( ! isset( $_POST['jobtitle'] ) ) {
return;
}
// Sanitize user input.
$my_data = sanitize_text_field( $_POST['jobtitle'] );
// Update the meta field in the database.
update_post_meta( $post_id, '_job_title', $my_data );
}

Add Wordpress Meta Box saved form input to Wordpress RSS feed

I'm teaching myself how to build Wordpress plugins. I found a great guide to creating a Wordpress Meta Box and saving the form input from it.
https://themefoundation.com/wordpress-meta-boxes-guide/
I want to send the entered and saved form input from the Meta Box that is in the Post edit view of Wordpress to the Wordpress RSS in its own tag. So when the user publishes the Post the Meta Box form data saves and adds the saved input to the post Wordpress RSS.
This is the code that saves the form input:
function prfx_meta_save( $post_id ) {
// Checks save status
$is_autosave = wp_is_post_autosave( $post_id );
$is_revision = wp_is_post_revision( $post_id );
$is_valid_nonce = ( isset( $_POST[ 'prfx_nonce' ] ) && wp_verify_nonce( $_POST[ 'prfx_nonce' ], basename( __FILE__ ) ) ) ? 'true' : 'false';
// Exits script depending on save status
if ( $is_autosave || $is_revision || !$is_valid_nonce ) {
return;
}
// Checks for input and sanitizes/saves if needed
if( isset( $_POST[ 'meta-text' ] ) ) {
update_post_meta( $post_id, 'meta-text', sanitize_text_field( $_POST[ 'meta-text' ] ) );
}
}
add_action( 'save_post', 'prfx_meta_save' );
I figured out the code to add to the above tutorial article about creating a Meta Box that saves values. This code puts the post meta into its own tag in the RSS. I added the post meta "meta-text" to the code below to work with the tutorial.
add_action('rss2_item', 'add_my_custom_field_node');
function add_my_custom_field_node() {
global $post;
$metaValue = get_post_meta($post->ID, 'meta-text', true);
if(!empty($metaValue)):
echo("<my-custom-field>{$metaValue}</my-custom-field>");
endif;
}

how to save meta box value?

I've created a meta box. The code is:
// Create your custom meta box
add_action( 'add_meta_boxes', 'hotel_amenities' );
// Add a custom meta box to a post
function hotel_amenities( $post ) {
add_meta_box(
'Meta Box Amenities', // ID, should be a string
'Amenities', // Meta Box Title
'amenities_content', // Your call back function, this is where your form field will go
'post', // The post type you want this to show up on, can be post, page, or custom post type
'normal', // The placement of your meta box, can be normal or side
'high' // The priority in which this will be displayed
);
}
// Content for the custom meta box
function amenities_content( $post ) {
echo '<label>Bed room</label>';
echo '<input type="text" name="amenity_bed_room" value="" />';
}
// Save your meta box content
add_action( 'save_post', 'save_amenities' );
// save newsletter content
function save_amenities(){
global $post;
// Get our form field
if( $_POST ) :
$amenities_meta = esc_attr( $_POST['amenity_bed_room'] );
// Update post meta
update_post_meta($post->ID, '_amenities_custom_meta', $amenities_meta);
endif;
}
It shows a meta box on admin post page with a text field. but it gets blank if I save or update the post after I put some thing on the text field.
Seems function save_amenities() is not working. What I am doing wrong in this code?
Also for getting that value I use the function below. Is that correct?
//get amenities meta box values
function get_amenities_meta_box() {
global $post;
$meta_values = get_post_meta($post->ID, '_amenities_custom_meta', true);
}
There are a few things going wrong there. The final value that you want to see will be displayed by the value attribute in the amenities_content function. Right now it is just displaying an empty string (""). Try putting any value in that attribute and you should see it show up in the meta box (value="this is a test").
The save_amenities function should take $post_id as a parameter. You'll need that to update the post meta-data and give a real value for the amenities_content function to echo back to the admin screen.
The amenities_content function should really have a nonce field that should then be verified by the save_amenities function. And user input should be sanitized before it is saved (I'm doing it both when I save it and when I display it. I'm not sure if that's necessary.)
try this out for the amenities_content function:
function amenities_content( $post ) {
// This is the value that was saved in the save_amenities function
$bed_room = get_post_meta( $post->ID, '_amenity_bed_room', true );
wp_nonce_field( 'save_amenity', 'amenity_nonce' );
echo '<label>Bed room</label>';
echo '<input type="text" name="amenity_bed_room"
value="' . sanitize_text_field( $bed_room ) . '" />';
}
and this for the save_amenities function:
function save_amenities( $post_id ) {
// Check if nonce is set
if ( ! isset( $_POST['amenity_nonce'] ) ) {
return $post_id;
}
if ( ! wp_verify_nonce( $_POST['amenity_nonce'], 'save_amenity' ) ) {
return $post_id;
}
// Check that the logged in user has permission to edit this post
if ( ! current_user_can( 'edit_post' ) ) {
return $post_id;
}
$bed_room = sanitize_text_field( $_POST['amenity_bed_room'] );
update_post_meta( $post_id, '_amenity_bed_room', $bed_room );
}

Trying to add a custom meta box to wordpress

I am trying to add a custom meta box to a wordpress page which stores a value in a custom field. It is not working. The meta box is displayed but when you press update the value entered ito the text box is lost and nothing is written to the wp_postmeta table (no _c3m_sponsor_ur meta_key is created)
I have adapted this from an example online. I also tried adding a die statement to see if the save post is even called but nothing dies. I also dont understand why the add_post_meta isn't being created for the page
add_action( 'add_meta_boxes', 'c3m_sponsor_meta' );
function c3m_sponsor_meta() {
add_meta_box( 'c3m_meta', 'Sponsor URL Metabox', 'c3m_sponsor_url_meta', 'page', 'side', 'high' );
}
function c3m_sponsor_url_meta( $post ) {
$c3m_sponsor_url = get_post_meta( $post->ID, '_c3m_sponsor_url', true);
if (!isset($c3m_sponsor_url))
add_post_meta($post->ID, '_c3m_sponsor_url', '', false);
echo 'Please enter the sponsors website link below';
?>
<input type="text" name="c3m_sponsor_url" value="<?php echo esc_attr( $c3m_sponsor_url ); ?>" />
<?php
}
add_action( 'save_post', 'c3m_save_project_meta' );
function c3m_save_project_meta( $post_ID ) {
die('here');
global $post;
if( $post->post_type == "page" ) {
if (isset( $_POST ) ) {
update_post_meta( $post_ID, '_c3m_sponsor_url', strip_tags( $_POST['c3m_sponsor_url'] ) );
}
}
}
Any help in fixing this is muh appreciated
Thanks a lot
This may be help you:--
add_action( 'save_post', 'c3m_save_project_meta' );
function c3m_save_project_meta( $post_ID ) {
if ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] )
{
if (isset( $_POST ) ) {
update_post_meta( $post_ID, '_c3m_sponsor_url', strip_tags( $_POST['c3m_sponsor_url'] ) );
}
}
}
Edited:-
You can simply use Advanced Custom Fields plugin instead of using code. This plugin much helpful for custom meta fields.

making your posts password-protected by default

I originally wanted to be able to password protect a category. At the very least I wanted it to be password-protected, but preferably a username and password login. Since I have been unsuccessful for days at finding a solution I have now resorted to using WordPress's built-in password protection for posts.
The issue I am having is I will be posting via e-mail and in order to have these posts password-protected I need to login to Wordpress and then manually select password-protected and enter a password in the dashboard.
I would like to be able to have all posts that appear in a specific category be password-protected with the same password by default. Eliminating having to log in to Wordpress and manually select password protect.
I know there is a function <?php post_password_required( $post ); ?> that I need to use but I am not sure how to implement it or where.
Based on this WordPress StackExchange answer. Tested only with a regular dashboard. Publishing via email has to be tested, but I suppose the hook gets called in this kind of posting.
add_action( 'save_post', 'wpse51363_save_post' );
function wpse51363_save_post( $post_id ) {
//Check it's not an auto save routine
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return;
//Check it's not an auto save routine
if ( wp_is_post_revision( $post_id ) )
return;
//Perform permission checks! For example:
if ( !current_user_can( 'edit_post', $post_id ) )
return;
$term_list = wp_get_post_terms(
$post_id,
'category',
array( 'fields' => 'slugs' )
);
if( in_array ( 'the-category-slug', $term_list ) )
{
// Unhook this function so it doesn't loop infinitely
remove_action( 'save_post', 'wpse51363_save_post' );
// Call wp_update_post update, which calls save_post again.
wp_update_post( array(
'ID' => $post_id,
'post_password' => 'default-password' )
);
// Re-hook this function
add_action( 'save_post', 'wpse51363_save_post' );
}
}
add_filter( 'wp_insert_post_data', function( $data, $postarr ){
if ( 'book' == $data['post_type'] && 'auto-draft' == $data['post_status'] ) {
$data['post_password'] = wp_generate_password();
}
return $data;
}, '99', 2 );

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