htmlburger / carbon-fields

				// fetch and prepare terms as relationship items

				$terms = get_terms( $type['taxonomy'], $args );

				foreach ( $terms as $term_id => &$term ) {

					$term = array(

						'id' => $term_id,

						'title' => $term,

						'type' => $type['type'],

						'subtype' => $type['taxonomy'],

						'label' => $this->get_item_label( $term_id, $type['type'], $type['taxonomy'] ),

						'is_trashed' => false,

						'edit_link' => $this->get_object_edit_link( $type, $term_id ),

					);

				}

				$options = array_merge( $options, $terms );

			} elseif ( $type['type'] === 'user' ) { // populate users

				// fetch and prepare users as relationship items

				$users = get_users( $args );

				foreach ( $users as &$u ) {

					$u = array(

						'id' => $u,

						'title' => $this->get_title_by_type( $u, $type['type'] ),

						'type' => $type['type'],

						'subtype' => 'user',

						'label' => $this->get_item_label( $u, $type['type'] ),

						'is_trashed' => false,

						'edit_link' => $this->get_object_edit_link( $type, $u ),

					);

				}

				$options = array_merge( $options, $users );

			} elseif ( $type['type'] === 'comment' ) { // populate comments

				// fetch and prepare comments as relationship items

				$comments = get_comments( $args );

				foreach ( $comments as &$c ) {

					$c = array(

						'id' => $c,

						'title' => $this->get_title_by_type( $c, $type['type'] ),

						'type' => $type['type'],

						'subtype' => 'comment',

						'label' => $this->get_item_label( $c, $type['type'] ),

						'is_trashed' => false,

						'edit_link' => $this->get_object_edit_link( $type, $c ),

					);

				}

				$options = array_merge( $options, $comments );

			}