<?php
/*
Plugin Name: WP OWT Metabox
Description: This is a simple plugin for purpose of learning about wordpress metaboxes
Version: 1.0.0
Author: Online Web Tutor
*/
function wpl_owt_custom_init_cpt() {
$args = array(
'public' => true,
'label' => 'Books',
'supports' => array('title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments')
);
register_post_type('book', $args);
}
add_action('init', 'wpl_owt_custom_init_cpt');
function wpl_owt_register_metabox() {
//page
add_meta_box("owt-page-id", "OWT Page Metabox", "wpl_owt_pages_function", "page", "normal", "high");
//post
add_meta_box("owt-post-id", "OWT Post Metabox", "wpl_owt_post_function", "post", "side", "high");
}
add_action("add_meta_boxes", "wpl_owt_register_metabox");
function wpl_owt_register_metabox_cpt() {
//custom post type
add_meta_box("owt-cpt-id", "OWT Book Metabox", "wpl_owt_book_function", "book", "side", "high");
}
add_action("add_meta_boxes_book", "wpl_owt_register_metabox_cpt");
//add_action("wp_dashboard_setup", "wpl_owt_register_metabox_dashboard");
function wpl_owt_register_metabox_dashboard() {
//add_meta_box("owt-dasbhoard-id", "OWT Dashboard Metabox", "wpl_owt_dashboard_function", "dashboard", "side", "high");
remove_meta_box("dashboard_quick_press", "dashboard", "side");
remove_meta_box("dashboard_activity", "dashboard", "side");
}
function remove_dashboard_widgets() {
remove_meta_box('dashboard_right_now', 'dashboard', 'normal'); // Right Now
remove_meta_box('dashboard_recent_comments', 'dashboard', 'normal'); // Recent Comments
remove_meta_box('dashboard_incoming_links', 'dashboard', 'normal'); // Incoming Links
remove_meta_box('dashboard_plugins', 'dashboard', 'normal'); // Plugins
remove_meta_box('dashboard_quick_press', 'dashboard', 'side'); // Quick Press
remove_meta_box('dashboard_recent_drafts', 'dashboard', 'side'); // Recent Drafts
remove_meta_box('dashboard_primary', 'dashboard', 'side'); // WordPress blog
remove_meta_box('dashboard_secondary', 'dashboard', 'side'); // Other WordPress News
// use 'dashboard-network' as the second parameter to remove widgets from a network dashboard.
}
add_action('wp_dashboard_setup', 'remove_dashboard_widgets');
// callback function for metabox at custom post type 'book'
function wpl_owt_book_function($post) {
wp_nonce_field(basename(__FILE__), "wp_owt_cpt_nonce");
?>
<!---p>This is custom owt metabox for custom post type</p>
<p><a href="https://github.com/owthub/wp-owt-metabox" target="_blank">Github link</a></p-->
<div>
<label for="txtPublisherName">Publisher name</label>
<?php
$publisher_name = get_post_meta($post->ID, "book_publisher_name", true);
?>
<input type="text" name="txtPublisherName" value="<?php echo $publisher_name; ?>" placeholder="Publisher name"/>
</div>
<?php
}
add_action("save_post", "wpl_owt_save_metabox_data", 10, 2);
function wpl_owt_save_metabox_data($post_id, $post) {
// we have verfied the nonce
if (!isset($_POST['wp_owt_cpt_nonce']) || !wp_verify_nonce($_POST['wp_owt_cpt_nonce'], basename(__FILE__))) {
return $post_id;
}
// verifying slug value
$post_slug = "book";
if ($post_slug != $post->post_type) {
return;
}
//save value to db field
$pub_name = '';
if (isset($_POST['txtPublisherName'])) {
$pub_name = sanitize_text_field($_POST['txtPublisherName']);
} else {
$pub_name = '';
}
update_post_meta($post_id, "book_publisher_name", $pub_name);
}
function wpl_owt_authors_metabox() {
//register custom meta box
add_meta_box("owt-author-id", "OWT Author Metabox", "wpl_owt_author_callback_function", "book", "side", "high");
}
add_action("add_meta_boxes", "wpl_owt_authors_metabox");
function wpl_owt_author_callback_function($post) {
wp_nonce_field(basename(__FILE__), "wpl_owt_author_nonce");
?>
<p>
<label for="ddauthor">Select Author</label>
<select name="ddauthor">
<?php
$post_id = $post->ID;
$author_id = get_post_meta($post_id, "owt_book_author_name", true);
$all_authors = get_users(array("role" => "author"));
foreach ($all_authors as $index => $author) {
$selected = "";
if ($author_id == $author->data->ID) {
$selected = 'selected="selected"';
}
?>
<option value="<?php echo $author->data->ID; ?>" <?php echo $selected; ?>><?php echo $author->data->display_name ?></option>
<?php
}
?>
</select>
</p>
<?php
}
add_action("save_post", "wpl_owt_save_author", 10, 2);
function wpl_owt_save_author($post_id, $post) {
//nonce value first step verification
if (!isset($_POST['wpl_owt_author_nonce']) || !wp_verify_nonce($_POST['wpl_owt_author_nonce'], basename(__FILE__))) {
return $post_id;
}
//verifying post slug
$book_slug = "book";
if ($book_slug != $post->post_type) {
return $post_id;
}
$author_name = "";
if (isset($_POST['ddauthor'])) {
$author_name = sanitize_text_field($_POST['ddauthor']);
} else {
$author_name = '';
}
update_post_meta($post_id, "owt_book_author_name", $author_name);
}
/**
* Generated by the WordPress Meta Box generator
* at http://jeremyhixon.com/tool/wordpress-meta-box-generator/
*/
function owt_online_metabox_get_meta( $value ) {
global $post;
$field = get_post_meta( $post->ID, $value, true );
if ( ! empty( $field ) ) {
return is_array( $field ) ? stripslashes_deep( $field ) : stripslashes( wp_kses_decode_entities( $field ) );
} else {
return false;
}
}
function owt_online_metabox_add_meta_box() {
add_meta_box(
'owt_online_metabox-owt-online-metabox',
__( 'OWT Online Metabox', 'owt_online_metabox' ),
'owt_online_metabox_html',
'book',
'side',
'high'
);
}
add_action( 'add_meta_boxes', 'owt_online_metabox_add_meta_box' );
function owt_online_metabox_html( $post) {
wp_nonce_field( '_owt_online_metabox_nonce', 'owt_online_metabox_nonce' ); ?>
<p>This is sample metabox that we have generated by Online Tool</p>
<p>
<label for="owt_online_metabox_enter_name"><?php _e( 'Enter Name', 'owt_online_metabox' ); ?></label><br>
<input type="text" name="owt_online_metabox_enter_name" id="owt_online_metabox_enter_name" value="<?php echo owt_online_metabox_get_meta( 'owt_online_metabox_enter_name' ); ?>">
</p><?php
}
function owt_online_metabox_save( $post_id ) {
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
if ( ! isset( $_POST['owt_online_metabox_nonce'] ) || ! wp_verify_nonce( $_POST['owt_online_metabox_nonce'], '_owt_online_metabox_nonce' ) ) return;
if ( ! current_user_can( 'edit_post', $post_id ) ) return;
if ( isset( $_POST['owt_online_metabox_enter_name'] ) )
update_post_meta( $post_id, 'owt_online_metabox_enter_name', esc_attr( $_POST['owt_online_metabox_enter_name'] ) );
}
add_action( 'save_post', 'owt_online_metabox_save' );
/*
Usage: owt_online_metabox_get_meta( 'owt_online_metabox_enter_name' )
*/
class owtsamplemetaboxMetabox {
private $screen = array(
'post',
);
private $meta_fields = array(
array(
'label' => 'Enter Some Value',
'id' => 'entersomevalue_49412',
'type' => 'text',
),
);
public function __construct() {
add_action( 'add_meta_boxes', array( $this, 'add_meta_boxes' ) );
add_action( 'save_post', array( $this, 'save_fields' ) );
}
public function add_meta_boxes() {
foreach ( $this->screen as $single_screen ) {
add_meta_box(
'owtsamplemetabox',
__( 'OWT Sample Metabox', 'textdomain' ),
array( $this, 'meta_box_callback' ),
$single_screen,
'normal',
'default'
);
}
}
public function meta_box_callback( $post ) {
wp_nonce_field( 'owtsamplemetabox_data', 'owtsamplemetabox_nonce' );
echo 'This is sample metabox code';
$this->field_generator( $post );
}
public function field_generator( $post ) {
$output = '';
foreach ( $this->meta_fields as $meta_field ) {
$label = '<label for="' . $meta_field['id'] . '">' . $meta_field['label'] . '</label>';
$meta_value = get_post_meta( $post->ID, $meta_field['id'], true );
if ( empty( $meta_value ) ) {
$meta_value = $meta_field['default']; }
switch ( $meta_field['type'] ) {
default:
$input = sprintf(
'<input %s id="%s" name="%s" type="%s" value="%s">',
$meta_field['type'] !== 'color' ? 'style="width: 100%"' : '',
$meta_field['id'],
$meta_field['id'],
$meta_field['type'],
$meta_value
);
}
$output .= $this->format_rows( $label, $input );
}
echo '<table class="form-table"><tbody>' . $output . '</tbody></table>';
}
public function format_rows( $label, $input ) {
return '<tr><th>'.$label.'</th><td>'.$input.'</td></tr>';
}
public function save_fields( $post_id ) {
if ( ! isset( $_POST['owtsamplemetabox_nonce'] ) )
return $post_id;
$nonce = $_POST['owtsamplemetabox_nonce'];
if ( !wp_verify_nonce( $nonce, 'owtsamplemetabox_data' ) )
return $post_id;
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return $post_id;
foreach ( $this->meta_fields as $meta_field ) {
if ( isset( $_POST[ $meta_field['id'] ] ) ) {
switch ( $meta_field['type'] ) {
case 'email':
$_POST[ $meta_field['id'] ] = sanitize_email( $_POST[ $meta_field['id'] ] );
break;
case 'text':
$_POST[ $meta_field['id'] ] = sanitize_text_field( $_POST[ $meta_field['id'] ] );
break;
}
update_post_meta( $post_id, $meta_field['id'], $_POST[ $meta_field['id'] ] );
} else if ( $meta_field['type'] === 'checkbox' ) {
update_post_meta( $post_id, $meta_field['id'], '0' );
}
}
}
}
if (class_exists('owtsamplemetaboxMetabox')) {
new owtsamplemetaboxMetabox;
};Get Metabox
Published
sufiyankhan 