在 Wordpress 自定义端点上添加链接

Question

我为我的 Wordpress 插件中的自定义表中的特定数据创建了一个自定义端点。它使用getHelpers() 函数从表中获取所有数据。之后它将被一些用户数据合并。我想将 profile_image 添加为响应的链接，以便我们可以使用 embed 参数获取它。

将链接添加到响应的最佳方式是什么？我知道$response->add_link() 函数，但这会将其添加到响应中，而不是添加到每个贡献者中。

我尝试将链接添加为数组，但这不会对 the _embed 参数做出反应。

这是我的自定义端点代码：

class VEMS_Rest_Contributors extends WP_REST_Controller {

    protected $namespace = 'vems/v2';

    protected $rest_base = 'contributors';


    /**
     * Register the routes for coupons.
     */
    public function register_routes() {

         register_rest_route( $this->namespace, '/' . $this->rest_base, array(
            'methods'   => WP_REST_Server::READABLE,
            'callback'  => array( $this, 'get_items' ),
            'args'      => $this->get_collection_params(),
        ) );
    }

    public function get_items( WP_REST_Request $request ) {

        $project_id = $request->get_param( 'project_id' );

        $contributors = array();

        if( !empty($project_id) ) {

            $project = new VEMS_Project( $request['project_id'] );
            $helpers = $project->getHelpers();

            foreach($helpers as $helper) {

                $contributor = array();

                if( !empty($helper->contributor_id) ) {
                    $user = get_user_by( 'ID', $helper->contributor_id );
                    $user_meta = get_user_meta( $helper->contributor_id );

                    $contributor['ID'] = $helper->contributor_id;
                    $contributor['user_nicename'] = $user->data->display_name;
                    $contributor['user_profile_image'] = $user_meta['contributor_profile_image'][0];
                } else {
                    $contributor['user_nicename'] = $helper->name;
                    $contributor['user_profile_image'] = $helper->image_id;
                }

                $contributor['item_total'] = $helper->item_total;
                $contributor['checked'] = $helper->checked;
                $contributor['helper_date'] = $helper->helper_date;

                /*
                $contributor['_links']['profile_image'] = array(
                        'href' => rest_url( '/wp/v2/media/' . $contributor['user_profile_image'] ), 
                        'embeddable' => true
                    ); 
                */

                $contributors[] = $contributor;
            }

        }   

        $response = rest_ensure_response( $contributors );

        return $response;
    }

    public function get_collection_params() {

        $params['project_id'] = array(
            'description'       => __( 'Limit result set to contributors assigned a specific project.', 'vems' ),
            'type'              => 'integer',
            'sanitize_callback' => 'absint',
            'validate_callback' => 'rest_validate_request_arg',
        );

        return $params;
    }

}

Answer 1

要处理路由 vems/v2/contributors?_embed 上的链接，元素 profile_image 必须是链接数组，然后您可以这样做

            $contributor['_links']['profile_image'] = [
                [
                    'href' => rest_url( '/wp/v2/media/' . $contributor['ID'] ), 
                    'embeddable' => true,
                ],
            ];