Rilwis Metabox Show on Specific Template

December 03, 2015

Here is an embed of the Github code found here:

<?php

$prefix = 'rw_';

global $meta_boxes;

$meta_boxes   = array();

$meta_boxes[] = array(

	'id'     => 'any_id',

	'title'  => __( 'Meta Box Title', 'your-prefix' ),

	'post_types' => 'page', // updated!!

	'fields' => array(

		// IMAGE UPLOAD

		array(

			'name' => __( 'Your images', 'your-prefix' ),

			'id'   => "{$prefix}img",

			'type' => 'plupload_image',

		),

	),

);

/**

 * Register meta boxes

 *

 * @return void

 */

function rw_register_meta_boxes()

{

	global $meta_boxes;

	// Make sure there's no errors when the plugin is deactivated or during upgrade

	if ( ! class_exists( 'RW_Meta_Box' ) )

		return;

	// Register meta boxes only for some posts/pages

	if ( ! rw_maybe_include() )

		return;

	foreach ( $meta_boxes as $meta_box )

	{

		new RW_Meta_Box( $meta_box );

	}

}

add_action( 'admin_init', 'rw_register_meta_boxes' );

/**

 * Check if meta boxes is included

 *

 * @return bool

 */

function rw_maybe_include()

{

	// Include in back-end only

	if ( ! defined( 'WP_ADMIN' ) || ! WP_ADMIN )

		return false;

	// Always include for ajax

	if ( defined( 'DOING_AJAX' ) && DOING_AJAX )

		return true;

	// Check for post IDs

	$checked_post_IDs = array( 61, 63, 65, 67, 2 );

	if ( isset( $_GET['post'] ) )

		$post_id = intval( $_GET['post'] );

	elseif ( isset( $_POST['post_ID'] ) )

		$post_id = intval( $_POST['post_ID'] );

	else

		$post_id = false;

	$post_id = (int) $post_id;

	if ( in_array( $post_id, $checked_post_IDs ) )

		return true;

	// Check for page template

	$checked_templates = array( 'full-width.php', 'sidebar-page.php' );

	$template = get_post_meta( $post_id, '_wp_page_template', true );

	if ( in_array( $template, $checked_templates ) )

		return true;

	// If no condition matched

	return false;

}