Timber Twig：按类别查询自定义帖子类型并输出帖子的简短代码

Question

What I'm trying to do is generate a new Custom Post Type called report , add a taxonomy, query the reports, and then generate a shortcode in the format of [report_listing category="general"] to display the reports in the category General.

Right now, on report/index.twig , I get a listing of all reports using the shortcode [report_listing] , and the error No reports available when using [report_listing category="general"] .

I am using Advanced Custom Fields, but that doesn't appear to be an issue with this or the rest of the site. The categories are being generated and associated with the posts, since this is a sample {{ dump }} output on /index.twig for one report when using [report_listing] and all reports are displayed:

["report_category"]=> array(1) { [0]=> object(Timber\Term)#2131 (15)
{ ["PostClass"]=> string(11) "Timber\Post" ["TermClass"]=> string(4) "Term"
["object_type"]=> string(4) "term" ["_children"]=> NULL ["name"]=> string(7)
"General" ["taxonomy"]=> string(15) "report_category" ["id"]=> int(89) ["ID"]=> int(89)
["term_id"]=> int(89) ["slug"]=> string(7) "general" ["term_group"]=> int(0)
["term_taxonomy_id"]=> int(89) ["parent"]=> int(0) ["count"]=> int(0) ["filter"]=> string(3) "raw" } } 

I looked at ACF Querying custom post types with taxonomies , but I am using tax_query parameters. There are no php errors on the debug log.

The loop on index.twig :

{% if reports %}

    {% for report in reports %}

        (html)

    {% endfor %}

    {% else %}

        No reports available.

{% endif %}

Full code in the plugin that generates the custom post type and generates the shortcode:

// Add a standard Custom Post Type called report

function add_report_post_type() {
    register_post_type('report',
    array(
        'labels' => array(
            'name' => __('Reports'),
            'singular_name' => __('Report'),
            'add_new' => __('Add New'),
            'add_new_item' => __('Add Report'),
            'edit' => __('Edit'),
            'edit_item' => __('Edit Report'),
            'new_item' => __('New Report'),
            'view' => __('View Report'),
            'view_item' => __('View Report'),
            'search_items' => __('Search Reports'),
            'not_found' => __('No reports found'),
            'not_found_in_trash' => __('No reports found in Trash')
        ),
        'public' => true,
        'hierarchical' => true,
        'has_archive' => false,
        'supports' => array(
            'title',
            'revisions'
        ),
        'can_export' => true,
        'menu_position' => 5,
        'menu_icon' => 'dashicons-clipboard',
        'rewrite' => array(
            'slug' => 'report',
            'with_front' => false,
            'hierarchical' => true
        ),
        )
    );
}
add_action('init', 'add_report_post_type');


// Add categories

function reports_taxonomy() {
    $labels = array(
        'name'                       => _x( 'Report Categories', 'Taxonomy General Name', 'text_domain' ),
        'singular_name'              => _x( 'Report Categories', 'Taxonomy Singular Name', 'text_domain' ),
        'menu_name'                  => __( 'Categories', 'text_domain' ),
        'all_items'                  => __( 'All Items', 'text_domain' ),
        'parent_item'                => __( 'Parent Item', 'text_domain' ),
        'parent_item_colon'          => __( 'Parent Item:', 'text_domain' ),
        'new_item_name'              => __( 'New Item Name', 'text_domain' ),
        'add_new_item'               => __( 'Add New Item', 'text_domain' ),
        'edit_item'                  => __( 'Edit Item', 'text_domain' ),
        'update_item'                => __( 'Update Item', 'text_domain' ),
        'view_item'                  => __( 'View Item', 'text_domain' ),
        'separate_items_with_commas' => __( 'Separate items with commas', 'text_domain' ),
        'add_or_remove_items'        => __( 'Add or remove items', 'text_domain' ),
        'choose_from_most_used'      => __( 'Choose from the most used', 'text_domain' ),
        'popular_items'              => __( 'Popular Items', 'text_domain' ),
        'search_items'               => __( 'Search Items', 'text_domain' ),
        'not_found'                  => __( 'Not Found', 'text_domain' ),
        'no_terms'                   => __( 'No items', 'text_domain' ),
        'items_list'                 => __( 'Items list', 'text_domain' ),
        'items_list_navigation'      => __( 'Items list navigation', 'text_domain' ),
    );
}


function create_report_taxonomy () {
register_taxonomy(
        'report_category', 'report',
        array(
        'hierarchical'               => true,
        'public'                     => true,
        'show_ui'                    => true,
        'show_admin_column'          => true,
        'show_in_nav_menus'          => true,
        'show_tagcloud'              => true,
        'meta_box_cb'                   => false,
            )
    );
}
add_action( 'init', 'create_report_taxonomy', 2 );



// Query all reports and create shortcode

function report_get_listing($params) {
    $reports = [];
    $context = Timber::get_context();

    $args = array(
        'post_type' => 'report',
        'orderby' => [
            'weight' => 'ASC',
            'post_date' => 'DESC'
        ],
        'post_status' => 'publish',
        'meta_query' => [
            'weight' => [
                'key'     => 'weight',
                'compare' => 'EXISTS',
                'type'    => 'NUMERIC'
            ],

        ],
    );


// Check for a report category in the query

  if (!empty($params['category'])) {
        $args['tax_query'] = array(
            array(
                'taxonomy' => 'report_category',
                'terms' => explode(',', $params['category']),
                'field' => 'slug',
                'operator' => 'IN',
            ),
        );
    }

    query_posts($args);

    $report_listing = Timber::get_posts($args);

    foreach ($report_listing as $p) {
        $reports[] = get_single_report($p);
    }

    $context['reports'] = $reports;

    return Timber::compile('report/index.twig', $context);
}


// Build all the reports for the shortcode

function get_single_report($post) {
    $report = [
        'id' => $post->ID,
        'link' => $post->link,
        'title' => $post->title(),
        'date' => $post->post_date,
        'summary' => $post->get_field('summary'),
        'report_category' => $post->get_field('report_category'),
        'document' => $post->get_field('document'),
        'image' => $post->get_field('image'),
        'url' => $post->get_field('url')
    ];
    return $report;
}
add_shortcode('report_listing', 'report_get_listing');

Answer 1

结果发现这是一个奇怪的插件冲突:(。。我发现使用查询监视器。问题中的上述示例代码正常工作。

Answer 2

From reading your current question and code, I can see a few issues. But I'd like to address the shortcode function which is what I think is causing the reports to not get listed by category.

// Query all reports and create shortcode

function report_get_listing($params) {
    $reports = [];

   $a = shortcode_atts( array(
    'category' => '', // [report_listing category=""]
   ), $params );

    $context = Timber::get_context();

    $args = array(
        'post_type' => 'report',
        'orderby' => [
            'weight' => 'ASC',
            'post_date' => 'DESC'
        ],
        'post_status' => 'publish',
        'meta_query' => [
            'weight' => [
                'key'     => 'weight',
                'compare' => 'EXISTS',
                'type'    => 'NUMERIC'
            ],

        ],
    );


  // Check for a report category in the query

  if (!empty($a['category'])) {
        $args['tax_query'] = array(
            array(
                'taxonomy' => 'report_category',
                'terms' => explode(',', $a['category']),
                'field' => 'slug',
                'operator' => 'IN',
            ),
        );
    }

    query_posts($args);

    $report_listing = Timber::get_posts($args);

    foreach ($report_listing as $p) {
        $reports[] = get_single_report($p);
    }

    $context['reports'] = $reports;

    return Timber::compile('report/index.twig', $context);
}

add_shortcode('report_listing', 'report_get_listing');