[Resolved] get_post_type_object function returns null in init action

[Author]

Posts

[marketingS]

I am trying to: Create a block template for a custom post type that I created with Toolset Types. I am using the get_post_type_object function the init action for a custom post type.

I expected to see: The template of blocks for my custom post type

Instead, I got: An error saying the object was null.

I'm assuming this action is being called before Toolset's register_post_type action. How can this be resolved?

[Christian Cox]

Hi, what priority level are you using in the init hook? Try 15, at least:

function myplugin_register_template() {
    $post_type_object = get_post_type_object( 'book' );
    error_log(print_r($post_type_object, true));
}
add_action( 'init', 'myplugin_register_template', 15 );

Results in my local test:

[26-Nov-2019 22:20:56 UTC] WP_Post_Type Object
(
    [name] => book
    [label] => Books
    [labels] => stdClass Object
        (
            [name] => Books
            [singular_name] => Book
            [add_new] => Add New
            [add_new_item] => Add New Book
            [edit_item] => Edit Book
            [new_item] => New Book
            [view_item] => View Book
            [view_items] => View Posts
            [search_items] => Search Books
            [not_found] => No Books found
            [not_found_in_trash] => No Books found in Trash
            [parent_item_colon] => Parent text
            [all_items] => All items
            [archives] => All items
            [attributes] => Post Attributes
            [insert_into_item] => Insert into post
            [uploaded_to_this_item] => Uploaded to this post
            [featured_image] => Featured Image
            [set_featured_image] => Set featured image
            [remove_featured_image] => Remove featured image
            [use_featured_image] => Use as featured image
            [filter_items_list] => Filter posts list
            [items_list_navigation] => Posts list navigation
            [items_list] => Posts list
            [item_published] => Post published.
            [item_published_privately] => Post published privately.
            [item_reverted_to_draft] => Post reverted to draft.
            [item_scheduled] => Post scheduled.
            [item_updated] => Post updated.
            [menu_name] => Books
            [enter_title_here] => Enter title here
            [name_admin_bar] => Book
        )

    [description] =>
    [public] => 1
    [hierarchical] =>
    [exclude_from_search] =>
    [publicly_queryable] => 1
    [show_ui] => 1
    [show_in_menu] => 1
    [show_in_nav_menus] => 1
    [show_in_admin_bar] => 1
    [menu_position] =>
    [menu_icon] => dashicons-admin-post
    [capability_type] => post
    [map_meta_cap] => 1
    [register_meta_box_cb] =>
    [taxonomies] => Array
        (
        )

    [has_archive] => 1
    [query_var] => book
    [can_export] => 1
    [delete_with_user] =>
    [_builtin] =>
    [_edit_link] => post.php?post=%d
    [cap] => stdClass Object
        (
            [edit_post] => edit_post
            [read_post] => read_post
            [delete_post] => delete_post
            [edit_posts] => edit_posts
            [edit_others_posts] => edit_others_posts
            [publish_posts] => publish_posts
            [read_private_posts] => read_private_posts
            [read] => read
            [delete_posts] => delete_posts
            [delete_private_posts] => delete_private_posts
            [delete_published_posts] => delete_published_posts
            [delete_others_posts] => delete_others_posts
            [edit_private_posts] => edit_private_posts
            [edit_published_posts] => edit_published_posts
            [create_posts] => edit_posts
        )

    [rewrite] => Array
        (
            [enabled] => 1
            [with_front] => 1
            [feeds] => 1
            [pages] => 1
            [slug] => book
            [ep_mask] => 1
        )

    [show_in_rest] => 1
    [rest_base] => book
    [rest_controller_class] =>
    [rest_controller] =>
    [_toolset_edit_last] => 1567011503
    [_wpcf_author_id] => 1
    [wpcf-post-type] => book
    [icon] => admin-post
    [slug] => book
    [editor] => per_post
    [custom-field-group] => Array
        (
            [74] => 1
            [27] => 1
        )

    [has_archive_slug] =>
    [show_in_menu_page] =>
    [query_var_enabled] => 1
    [permalink_epmask] => 1
    [show_in_rest_control] => 1
    [show_relationship] => Array
        (
            [book-chapter] => on
            [speaker-book] => on
        )

    [is_repeating_field_group] =>
    [is_intermediary_post_type] =>
    [__accessIsCapValid] => 1
    [__accessIsNameValid] => 1
    [__accessNewCaps] => stdClass Object
        (
            [edit_post] => edit_book
            [read_post] => read_book
            [delete_post] => delete_book
            [edit_posts] => edit_books
            [edit_others_posts] => edit_others_books
            [publish_posts] => publish_books
            [read_private_posts] => read_private_books
            [read] => read
            [delete_posts] => delete_books
            [delete_private_posts] => delete_private_books
            [delete_published_posts] => delete_published_books
            [delete_others_posts] => delete_others_books
            [edit_private_posts] => edit_private_books
            [edit_published_posts] => edit_published_books
            [create_posts] => edit_books
        )

    [_wpcf_access_inherits_post_cap] => 1
)

I can't speak to the effectiveness of modifying a Block Template for a CPT though, I'm not very familiar with that. I'm not sure what is locked and what is open to extension. Let me know what you find out, and I can ask for more information from my developers if necessary.

[marketingS]

That fixed it. Thank you!