定制Post类型和破损的Permalinks

Question

我网站上的permalink经常坏掉。我发现它是由我创建的插件造成的。

这个插件基本上创建了一个自定义post类型，并在wp和表中使用自定义字段和存储。

我听说这件事发生是因为我把它们保存在wp-post的桌子上。那么我如何将它们保存到另一张桌子上呢？我该怎么从那张桌子上拿来。我可以通过传统的PHP和MySQL方法来实现它，但是我想利用WordPress函数。这能办到吗？

创建自定义post类型和分类法的代码

function dwwp_register_post_type(){

    $singular = 'Speaker';
    $plural = 'Speakers';

    $labels = array(
        'name'                  => $plural,
        'singular_name'         => $singular,
        'add_name'              => 'Add New',
        'add_new_item'          => 'Add New '.$singular,
        'edit'                  => 'Edit',
        'edit_item'             => 'Edit '.$singular,
        'new_item'              => 'New '.$singular,
        'view'                  => 'View '.$singular,
        'view_item'             => 'View '.$singular,
        'search_term'           => 'Search '.$plural,
        'parent'                => 'Parent '.$singular,
        'not_found'             => 'No '.$plural.' Found',
        'not_found_in_trash'    => 'No '.$plural.' in Trash',
    );


    $args = array(
        'labels'                => $labels,
        'public'                => true,
        'publicly_queryable'    => true,
        'exclude_from_search'   => false,
        'show_in_nav_menus'     => true,
        'show_ui'               => true,
        'show_in_menu'          => true,
        'show_in_admin_bar'     => true,
        'menu_position'         => 6,
        'menu_icon'             => 'dashicons-businessman',
        'can_export'            => true,
        'delete_with_user'      => false,
        'hierarchical'          => false,
        'has_archive'           => true,
        'query_var'             => true,
        'capability_type'       => 'post',
        'map_meta_cap'          => true,
        'rewrite'               => array(
                                    'slug' => 'speakers',
                                    'with_front' => true,
                                    'pages' => true,
                                    'feeds' => true,
                                ),
        'supports'              => array(
                                    'title',
                                    //'editor',
                                    //'author',
                                    //'custom-fields',
                                    'thumbnail'
                                )
        );

    register_post_type('speakers', $args);
}
add_action('init', 'dwwp_register_post_type');

function dwwp_register_taxonomy(){

    $plural = 'Years';
    $singular = 'Year';

    $labels = array(
        'name' => $plural,
        'singular_name' => $singular,
        'search_items' => 'Search '.$plural,
        'popular_items' => 'Popular '.$plural,
        'all_items' => 'All '.$plural,
        'parent_item' => null,
        'parent_item_colon' => null,
        'edit_item' => 'Edit '.$singular,
        'update_item' => 'Update '.$singular,
        'add_new_item' => 'Add New '.$singular,
        'new_item_name' => 'New '.$singular.' Name',
        'separate_items_with_commas' => 'Separate '.$plural.' with commas',
        'add_or_remove_items' => 'Add or Remove '.$plural,
        'choose_from_most_used' => 'Choose from the most used '.$plural,
        'not_found' => 'No '.$plural.' found',
        'menu_name' => $plural,
    );

    $args = array(
        'hierarchical' => true,
        'labels' => $labels,
        'show_ui' => true,
        'show_admin_column' => true,
        'update_count_callback' => '_update_post_term_count',
        'query_var' => true,
        'rewrite' => array(
            'slug' => 'year'
        )
    );

    register_taxonomy('year', 'speakers', $args);

}
add_action('init', 'dwwp_register_taxonomy');

现在，我为所有发言者创建了3个自定义字段:简短描述、完整描述和年份是自定义分类法。从输入字段存储在数据库中的代码

function dwwp_add_custom_metabox(){
    add_meta_box('dwwp_meta', 'Speakers Description', 'dwwp_meta_callback', 'speakers', 'normal', 'core');
}

add_action('add_meta_boxes', 'dwwp_add_custom_metabox');

function dwwp_meta_callback( $post ){

    wp_nonce_field(basename(__FILE__), 'dwwp_speakers_nonce');
    $dwwp_stored_meta = get_post_meta($post->ID);
    ?>
    
        
            Short Description
        
        
            ID, 'short-description', true);
            $editor = 'short-description';
            $settings = array(
                'textarea_rows' => 5,

            );
            wp_editor($content, $editor, $settings);
            ?>
    
    
        
            Long Description
        
        
            ID, 'long-description', true);
            $editor = 'long-description';
            $settings = array(
                'textarea_rows' => 10,

            );
            wp_editor($content, $editor, $settings);
            ?>

然后在网格中显示扬声器，并有一个弹出窗口在其他地方显示它们的详细信息。创建要在其他地方显示的短代码的代码。

 array('2018', '2017', '2016')
        ), $atts
    );

    $return_args[] = '
                        
                            
                                Speakers
                            
                        
                        ';

    $args = array(
        'post_type' => 'speakers',
        'orderby' => 'menu_order',
        'order' => 'ASC',
        'post_per_page' => -1,
        'tax_query' => array(
            array(
                'taxonomy' => 'year',
                'field' => 'name',
                'terms' => $atts['years']
            ),
        ),
    );

    $speakers_list = new WP_Query($args);

    if ($speakers_list->have_posts()):
        while ($speakers_list->have_posts()): $speakers_list->the_post();

            $return_args[] = '
                                
                                    
                                        
                                            '.get_the_title().'
                                            

                                        
                                    
                                
                            ';

        endwhile;
    endif;

    $return_args[] = '';

    $args = join($return_args);
    return $args;
}
add_shortcode('speakers-grid-display', 'speakers_grid_display');

/*
=============================================================
Display speakers with pop ups
=============================================================
*/

function speakers_popup($atts, $content = null){

    $atts = shortcode_atts(
        array(
            'years' => array('2018', '2017', '2016')
        ), $atts
    );

    $return_args[] = '
                        
                            
                                Speakers
                            
                        
                        ';

    $args = array(
        'post_type' => 'speakers',
        'orderby' => 'menu_order',
        'order' => 'ASC',
        'post_per_page' => -1,
        'tax_query' => array(
            array(
                'taxonomy' => 'year',
                'field' => 'name',
                'terms' => $atts['years']
            ),
        ),
    );

    $speakers_list = new WP_Query($args);

    $i = 1;

    if ($speakers_list->have_posts()):
        while ($speakers_list->have_posts()): $speakers_list->the_post();

            $return_args[] = '
                                
                                    
                                        
                                            '.get_the_title().'
                                            

                                        
                                    
                                
                            ';

            $i++;
        endwhile;
    endif;

    $return_args[] = '';

    $speakers_list = new WP_Query($args);

    $i = 1;

    if ($speakers_list->have_posts()):
        while ($speakers_list->have_posts()): $speakers_list->the_post();
            $return_args[] = '
                                
                                    
                                        
                                        
                                        
                                            '.get_the_title().'
                                            '.get_post_meta(get_the_ID(), "short-description", true).'
                                        
                                    
                                
                                
                                    '.get_post_meta(get_the_ID(), "long-description", true).'
                                
                            ';

            $i++;

        endwhile;
    endif;

    $return_args = join($return_args);

    return $return_args;




}
add_shortcode('speakers-popup', 'speakers_popup');

然后我创建了另一个页面来重新排列发言者的名单

 'speakers',
        'orderby' => 'menu_order',
        'order' => 'ASC',
        'no_found_rows' => true,
        'update_post_term_cache' => false,
        'post_per_page' => 50
    );

    $speakers_list = new WP_Query($args);?>

    
        

        Reorder Speakers
        

        have_posts()): ?>
        
            have_posts()): $speakers_list->the_post();
            ?>
            
                
            
        
        
        
            No Speakers
        
    


 (int)$item_id,
            'menu_order' => $count
        );
        wp_update_post($post);
        $count++;
    }

    wp_send_json_success('Post Saved.');

}
add_action('wp_ajax_save_post', 'dwwp_save_reorder');

最后，在索引页中，代码是

 wp_create_nonce('wp-speakers-order'),
            'success' => __('Speakers sort order has been saved.'),
            'failure' => __('There was an error saving the sort order, or you do not have priviledges')
        ));
    }
}
add_action('admin_enqueue_scripts', 'dwwp_admin_enqueue_scripts');

Answer 1

您需要在插件激活时使用刷新重写规则，以便您的自定义post类型开始工作。

register_deactivation_hook( __FILE__, 'flush_rewrite_rules' );
register_activation_hook( __FILE__, 'myplugin_flush_rewrites' );
function myplugin_flush_rewrites() {
    // call your CPT registration function here
    // (it should also be hooked into 'init')
    dwwp_register_post_type();
    flush_rewrite_rules();
}

您可能已经注意到，如果其他一些代码刷新规则，比如访问Settings > Permalinks管理页面时，它可以随意工作而不必这样做。