Top & Highlight Meta

<?php

function wedevs_add_top_meta_box() {
    add_meta_box('top-ad-meta-box', __('Top & Highlight Ads', 'appthemes'), 'wedevs_top_price', APP_POST_TYPE, 'normal', 'high');
}
add_action( 'admin_menu', 'wedevs_add_top_meta_box' );

function wedevs_top_price() {
    global $post;

    //if post is a custom post type and only during the first execution of the action quick_edit_custom_box
    if ( $post->post_type == APP_POST_TYPE ) {
        $top = get_post_meta( $post->ID, 'cp_sys_top_price', true );
        $top = ( $top != '' ) ? 'on' : 'off';

        $highlight = get_post_meta( $post->ID, 'cp_sys_highlight_price', true );
        $highlight = ( $highlight != '' ) ? 'on' : 'off';
        ?>

        <table class="form-table ad-meta-table">
            <?php wp_nonce_field( basename( __FILE__ ), 'wedevs_top_highlight_nonce' ); ?>
            <tr>
                <th style="width:20%"><label for="ad-top"><?php _e('Top Ad', 'appthemes'); ?>:</label></th>
                <td class="top-ad">
                    <input name="cp_sys_top_price" value="on" type="checkbox" <?php checked( $top, 'on' ); ?> />
                </td>
            </tr>

            <tr>
                <th style="width:20%"><label for="ad-highlight"><?php _e('Highlight Ad', 'appthemes'); ?>:</label></th>
                <td class="ad-highlight">
                    <input name="cp_sys_highlight_price" value="on" type="checkbox" <?php checked( $highlight, 'on' ); ?> />
                </td>
            </tr>

        </table>

<?php
    }
}


function wedevs_save_top( $post_id ) {

    // verify this came from the our screen and with proper authorization,
    if ( !wp_verify_nonce($_POST['wedevs_top_highlight_nonce'], basename(__FILE__)) )
        return $post_id;

    // verify if this is an auto save routine.
    // if it is our form and it has not been submitted, dont want to do anything
    if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )
        return $post_id;

    // lastly check to make sure this user has permissions to save post fields
    if ( !current_user_can('edit_post', $post_id) )
        return $post_id;

    if( isset( $_POST['cp_sys_top_price'] ) ) {
        update_post_meta( $post_id, 'cp_sys_top_price', $_POST['cp_sys_top_price'] );
    } else {
        delete_post_meta( $post_id, 'cp_sys_top_price' );
    }

    if( isset( $_POST['cp_sys_highlight_price'] ) ) {
        update_post_meta( $post_id, 'cp_sys_highlight_price', $_POST['cp_sys_highlight_price'] );
    } else {
        delete_post_meta( $post_id, 'cp_sys_highlight_price' );
    }
}

add_action( 'save_post', 'wedevs_save_top' );