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<?php
/**
* Adds the template meta box to the post editing screen for public post types. This feature allows users and
* devs to create custom templates for any post type, not just pages as default in WordPress core. The
* functions in this file create the template meta box and save the template chosen by the user when the
* post is saved. This file is only used if the theme supports the 'hybrid-core-template-hierarchy' feature.
*
* @package HybridCore
* @subpackage Admin
* @author Justin Tadlock <justin@justintadlock.com>
* @copyright Copyright (c) 2008 - 2015, Justin Tadlock
* @link http://themehybrid.com/hybrid-core
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
# Add the post template meta box on the 'add_meta_boxes' hook.
add_action( 'add_meta_boxes', 'hybrid_meta_box_post_add_template', 10, 2 );
# Save the post template meta box data on the 'save_post' hook.
add_action( 'save_post', 'hybrid_meta_box_post_save_template', 10, 2 );
add_action( 'add_attachment', 'hybrid_meta_box_post_save_template' );
add_action( 'edit_attachment', 'hybrid_meta_box_post_save_template' );
/**
* Adds the post template meta box for all public post types, excluding the 'page' post type since WordPress
* core already handles page templates.
*
* @since 1.2.0
* @access public
* @param string $post_type
* @param object $post
* @return void
*/
function hybrid_meta_box_post_add_template( $post_type, $post ) {
// Get the post templates.
$templates = hybrid_get_post_templates( $post_type );
// If there's templates, add the meta box.
if ( ! empty( $templates ) && 'page' !== $post_type )
add_meta_box( 'hybrid-post-template', esc_html__( 'Template', 'hybrid-core' ), 'hybrid_meta_box_post_display_template', $post_type, 'side', 'default' );
}
/**
* Displays the post template meta box.
*
* @since 1.2.0
* @access public
* @param object $object
* @param array $box
* @return void
*/
function hybrid_meta_box_post_display_template( $post, $box ) {
$templates = hybrid_get_post_templates( $post->post_type );
$post_template = hybrid_get_post_template( $post->ID );
wp_nonce_field( basename( __FILE__ ), 'hybrid-post-template-nonce' ); ?>
<p>
<select name="hybrid-post-template" class="widefat">
<option value=""></option>
<?php foreach ( $templates as $label => $template ) : ?>
<option value="<?php echo esc_attr( $template ); ?>" <?php selected( $post_template, $template ); ?>><?php echo esc_html( $label ); ?></option>
<?php endforeach; ?>
</select>
</p>
<?php }
/**
* Saves the post template meta box settings as post metadata. Note that this meta is sanitized using the
* hybrid_sanitize_meta() callback function prior to being saved.
*
* @since 1.2.0
* @access public
* @param int $post_id The ID of the current post being saved.
* @param object $post The post object currently being saved.
* @return void|int
*/
function hybrid_meta_box_post_save_template( $post_id, $post = '' ) {
// Fix for attachment save issue in WordPress 3.5. @link http://core.trac.wordpress.org/ticket/21963
if ( ! is_object( $post ) )
$post = get_post();
// Verify the nonce before proceeding.
if ( ! isset( $_POST['hybrid-post-template-nonce'] ) || ! wp_verify_nonce( $_POST['hybrid-post-template-nonce'], basename( __FILE__ ) ) )
return $post_id;
// Return here if the template is not set. There's a chance it won't be if the post type doesn't have any templates.
if ( ! isset( $_POST['hybrid-post-template'] ) || ! current_user_can( 'edit_post', $post_id ) )
return $post_id;
// Get the posted meta value.
$new_meta_value = sanitize_text_field( $_POST['hybrid-post-template'] );
// Get the meta value of the meta key.
$meta_value = hybrid_get_post_template( $post_id );
// If there is no new meta value but an old value exists, delete it.
if ( '' == $new_meta_value && $meta_value )
hybrid_delete_post_template( $post_id );
// If the new meta value does not match the old value, update it.
elseif ( $new_meta_value != $meta_value )
hybrid_set_post_template( $post_id, $new_meta_value );
}