出身背景
我已经创建了一个必须使用的插件，在这里我保留了常规功能。比如register_post_type（）。
在这里，我创建了几种自定义帖子类型。在几个非常好的帖子的帮助下，我设法掌握了定制帖子类型的能力（我想）。
////////////////
//
// Create Custom Post Types
//
////////////////
add_action( \'init\', \'create_post_type\' );
function create_post_type() {
register_post_type( \'pms\',
array(
\'labels\' => array(
\'name\' => __( \'Personal Mission Statements\' ),
\'singular_name\' => __( \'Personal Mission Statement\' )
),
\'public\' => true,
\'has_archive\' => true,
\'menu_position\' => 2,
\'menu_icon\' => \'dashicons-heart\',
\'capability_type\' => array(\'pms\',\'pmss\'),
\'map_meta_cap\' => true,
\'supports\' => array( \'title\', \'editor\', \'author\' )
)
);
flush_rewrite_rules();
}
////////////////
//
// Create Custom Roles
//
////////////////
/////////
//Add new roles
////////
//Can\'t create new post and only edit their own
$capabilities_employee = array (
\'edit_others_pages\' => true,
\'edit_others_posts\' => true,
\'edit_pages\' => true,
\'edit_posts\' => true,
\'edit_private_posts\' => true,
\'edit_published_posts\' => true,
\'list_users\' => true,
\'manage_categories\' => true,
\'publish_posts\' => true,
\'read\' => true,
\'upload_files\' => true,
\'manage_categories\' => true,
);
//Create additional Roles
function add_roles () {
add_role( \'employee\', \'Employee\', $capabilities_employee );
}
add_action( \'admin_init\', \'add_roles\');
////////
//Specify Capabilities Custom Post Types
////////
//Add capabilities to the other Post Types (need added).
//The remove a capabilities it is NOT enough to remove the line, you need to add remove_cap()
function add_theme_caps() {
// gets the candidate role
$employees = get_role( \'employee\' );
$employees->add_cap( \'read\' );
$employees->add_cap( \'edit_pms\' );
$employees->add_cap( \'read_pms\' );
$employees->add_cap( \'edit_pmss\' );
$employees->add_cap( \'publish_pmss\' );
$employees->add_cap( \'edit_published_pmss\' );
}
add_action( \'admin_init\', \'add_theme_caps\');
问题在编辑自定义帖子“pms”之前，我会检查当前的\\u用户\\u can（“编辑\\u pms”）
1） 默认角色“editor”返回true 2）自定义角色“employee”（如上）返回FALSE
使用$GLOBALS[\'wp\\u post\\u types\']调试“pms”自定义post类型上的功能，并使用get\\u userdata（）调试具有employee角色的用户的功能。它们都具有正确的功能。
问题上述任何想法方式（2）返回FALSE？
来源
https://codex.wordpress.org/Function_Reference/register_post_typehttp://justintadlock.com/archives/2010/07/10/meta-capabilities-for-custom-post-types
SO网友:kaiser
这个register_post_type() 函数将post类型名称作为的参数map_meta_cap, 其中默认值为post. 看看get_post_type_capabilities() 以获得更深入的见解。这应该有助于您理解它的含义：
function get_post_type_capabilities( $args ) {
if ( ! is_array( $args->capability_type ) )
$args->capability_type = array( $args->capability_type, $args->capability_type . \'s\' );
// Singular base for meta capabilities, plural base for primitive capabilities.
list( $singular_base, $plural_base ) = $args->capability_type;
$default_capabilities = array(
// Meta capabilities
\'edit_post\' => \'edit_\' . $singular_base,
\'read_post\' => \'read_\' . $singular_base,
\'delete_post\' => \'delete_\' . $singular_base,
// Primitive capabilities used outside of map_meta_cap():
\'edit_posts\' => \'edit_\' . $plural_base,
\'edit_others_posts\' => \'edit_others_\' . $plural_base,
\'publish_posts\' => \'publish_\' . $plural_base,
\'read_private_posts\' => \'read_private_\' . $plural_base,
);
// Primitive capabilities used within map_meta_cap():
if ( $args->map_meta_cap ) {
$default_capabilities_for_mapping = array(
\'read\' => \'read\',
\'delete_posts\' => \'delete_\' . $plural_base,
\'delete_private_posts\' => \'delete_private_\' . $plural_base,
\'delete_published_posts\' => \'delete_published_\' . $plural_base,
\'delete_others_posts\' => \'delete_others_\' . $plural_base,
\'edit_private_posts\' => \'edit_private_\' . $plural_base,
\'edit_published_posts\' => \'edit_published_\' . $plural_base,
);
$default_capabilities = array_merge( $default_capabilities, $default_capabilities_for_mapping );
}
$capabilities = array_merge( $default_capabilities, $args->capabilities );
// Post creation capability simply maps to edit_posts by default:
if ( ! isset( $capabilities[\'create_posts\'] ) )
$capabilities[\'create_posts\'] = $capabilities[\'edit_posts\'];
// Remember meta capabilities for future reference.
if ( $args->map_meta_cap )
_post_type_meta_capabilities( $capabilities );
return (object) $capabilities;
}
更好的调试方法是使用以下挂钩：
do_action( \'registered_post_type\', $post_type, $args );
像这样使用它（它在注册后运行）：
add_action( \'registered_post_type\', function( $cpt, $args )
{
$cpt === \'your_cpt_name\' && var_dump(
$args->capability_type,
$args->cap // result of get_post_type_capabilities()
);
}, 10, 2 );
更换
your_cpt_name 使用您在注册期间用作第一个参数的实际名称
还要记住，对于大多数用例，完全没有必要对照自定义功能进行检查。这些都是很难维持的。我更喜欢对照post类型和默认功能进行检查。
