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<?php
/**
* Adds the SEO meta box to the post editing screen for public post types. This feature allows the post author
* to set a custom title, description, and keywords for the post, which will be viewed on the singular post page.
* To use this feature, the theme must support the 'hybrid-core-seo' feature. The functions in this file create
* the SEO meta box and save the settings chosen by the user when the post is saved.
*
* @package HybridCore
* @subpackage Admin
* @author Justin Tadlock <justin@justintadlock.com>
* @copyright Copyright (c) 2008 - 2012, Justin Tadlock
* @link http://themehybrid.com/hybrid-core
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
/* Add the post SEO meta box on the 'add_meta_boxes' hook. */
add_action( 'add_meta_boxes', 'hybrid_meta_box_post_add_seo', 10, 2 );
add_action( 'add_meta_boxes', 'hybrid_meta_box_post_remove_seo', 10, 2 );
/* Save the post SEO meta box data on the 'save_post' hook. */
add_action( 'save_post', 'hybrid_meta_box_post_save_seo', 10, 2 );
/**
* Adds the post SEO meta box for all public post types.
*
* @since 1.2.0
* @param string $post_type The post type of the current post being edited.
* @param object $post The current post being edited.
* @return void
*/
function hybrid_meta_box_post_add_seo( $post_type, $post ) {
$post_type_object = get_post_type_object( $post_type );
/* Only add meta box if current user can edit, add, or delete meta for the post. */
if ( ( true === $post_type_object->public ) && ( current_user_can( 'edit_post_meta', $post->ID ) || current_user_can( 'add_post_meta', $post->ID ) || current_user_can( 'delete_post_meta', $post->ID ) ) )
add_meta_box( 'hybrid-core-post-seo', __( 'SEO', 'hybrid-core' ), 'hybrid_meta_box_post_display_seo', $post_type, 'normal', 'high' );
}
/**
* Remove the meta box from some post types.
*
* @since 1.3.0
* @param string $post_type The post type of the current post being edited.
* @param object $post The current post being edited.
* @return void
*/
function hybrid_meta_box_post_remove_seo( $post_type, $post ) {
/* Removes post stylesheets support of the bbPress 'topic' post type. */
if ( function_exists( 'bbp_get_topic_post_type' ) && bbp_get_topic_post_type() == $post_type )
remove_meta_box( 'hybrid-core-post-seo', bbp_get_topic_post_type(), 'normal' );
/* Removes post stylesheets support of the bbPress 'reply' post type. */
elseif ( function_exists( 'bbp_get_reply_post_type' ) && bbp_get_reply_post_type() == $post_type )
remove_meta_box( 'hybrid-core-post-seo', bbp_get_reply_post_type(), 'normal' );
}
/**
* Displays the post SEO meta box.
*
* @since 1.2.0
* @return void
*/
function hybrid_meta_box_post_display_seo( $object, $box ) {
wp_nonce_field( basename( __FILE__ ), 'hybrid-core-post-seo' ); ?>
<p>
<label for="hybrid-document-title"><?php _e( 'Document Title:', 'hybrid-core' ); ?></label>
<br />
<input type="text" name="hybrid-document-title" id="hybrid-document-title" value="<?php echo esc_attr( get_post_meta( $object->ID, 'Title', true ) ); ?>" size="30" tabindex="30" style="width: 99%;" />
</p>
<p>
<label for="hybrid-meta-description"><?php _e( 'Meta Description:', 'hybrid-core' ); ?></label>
<br />
<textarea name="hybrid-meta-description" id="hybrid-meta-description" cols="60" rows="2" tabindex="30" style="width: 99%;"><?php echo esc_textarea( get_post_meta( $object->ID, 'Description', true ) ); ?></textarea>
</p>
<p>
<label for="hybrid-meta-keywords"><?php _e( 'Meta Keywords:', 'hybrid-core' ); ?></label>
<br />
<input type="text" name="hybrid-meta-keywords" id="hybrid-meta-keywords" value="<?php echo esc_attr( get_post_meta( $object->ID, 'Keywords', true ) ); ?>" size="30" tabindex="30" style="width: 99%;" />
</p>
<?php }
/**
* Saves the post SEO meta box settings as post metadata.
*
* @since 1.2.0
* @param int $post_id The ID of the current post being saved.
* @param int $post The post object currently being saved.
*/
function hybrid_meta_box_post_save_seo( $post_id, $post ) {
$prefix = hybrid_get_prefix();
/* Verify the nonce before proceeding. */
if ( !isset( $_POST['hybrid-core-post-seo'] ) || !wp_verify_nonce( $_POST['hybrid-core-post-seo'], basename( __FILE__ ) ) )
return $post_id;
$meta = array(
'Title' => $_POST['hybrid-document-title'],
'Description' => $_POST['hybrid-meta-description'],
'Keywords' => $_POST['hybrid-meta-keywords']
);
foreach ( $meta as $meta_key => $new_meta_value ) {
/* Get the meta value of the custom field key. */
$meta_value = get_post_meta( $post_id, $meta_key, true );
/* If there is no new meta value but an old value exists, delete it. */
if ( current_user_can( 'delete_post_meta', $post_id, $meta_key ) && '' == $new_meta_value && $meta_value )
delete_post_meta( $post_id, $meta_key, $meta_value );
/* If a new meta value was added and there was no previous value, add it. */
elseif ( current_user_can( 'add_post_meta', $post_id, $meta_key ) && $new_meta_value && '' == $meta_value )
add_post_meta( $post_id, $meta_key, $new_meta_value, true );
/* If the new meta value does not match the old value, update it. */
elseif ( current_user_can( 'edit_post_meta', $post_id, $meta_key ) && $new_meta_value && $new_meta_value != $meta_value )
update_post_meta( $post_id, $meta_key, $new_meta_value );
}
}
?>
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