WP_Posts_List_Table::column_default

	 *
	 * @since 4.3.0
	 *
	 * @param WP_Post $post        The current WP_Post object.
	 * @param string  $column_name The current column name.
	 */
	public function column_default( $post, $column_name ) {
		if ( 'categories' === $column_name ) {
			$taxonomy = 'category';
		} elseif ( 'tags' === $column_name ) {
			$taxonomy = 'post_tag';
		} elseif ( 0 === strpos( $column_name, 'taxonomy-' ) ) {
			$taxonomy = substr( $column_name, 9 );
		} else {
			$taxonomy = false;
		}
		if ( $taxonomy ) {
			$taxonomy_object = get_taxonomy( $taxonomy );
			$terms           = get_the_terms( $post->ID, $taxonomy );
			if ( is_array( $terms ) ) {
				$term_links = array();
				foreach ( $terms as $t ) {
					$posts_in_term_qv = array();
					if ( 'post' !== $post->post_type ) {
						$posts_in_term_qv['post_type'] = $post->post_type;
					}
					if ( $taxonomy_object->query_var ) {
						$posts_in_term_qv[ $taxonomy_object->query_var ] = $t->slug;
					} else {
						$posts_in_term_qv['taxonomy'] = $taxonomy;
						$posts_in_term_qv['term']     = $t->slug;
					}

					$label = esc_html( sanitize_term_field( 'name', $t->name, $t->term_id, $taxonomy, 'display' ) );

					$term_links[] = $this->get_edit_link( $posts_in_term_qv, $label );
				}

				/**
				 * Filters the links in `$taxonomy` column of edit.php.
				 *
				 * @since 5.2.0
				 *
				 * @param string[]  $term_links Array of term editing links.
				 * @param string    $taxonomy   Taxonomy name.
				 * @param WP_Term[] $terms      Array of term objects appearing in the post row.
				 */
				$term_links = apply_filters( 'post_column_taxonomy_links', $term_links, $taxonomy, $terms );

				/* translators: Used between list items, there is a space after the comma. */
				echo join( __( ', ' ), $term_links );
			} else {
				echo '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">' . $taxonomy_object->labels->no_terms . '</span>';
			}
			return;
		}

		if ( is_post_type_hierarchical( $post->post_type ) ) {

			/**
			 * Fires in each custom column on the Posts list table.
			 *
			 * This hook only fires if the current post type is hierarchical,
			 * such as pages.
			 *
			 * @since 2.5.0
			 *
			 * @param string $column_name The name of the column to display.
			 * @param int    $post_id     The current post ID.
			 */
			do_action( 'manage_pages_custom_column', $column_name, $post->ID );
		} else {

			/**
			 * Fires in each custom column in the Posts list table.
			 *
			 * This hook only fires if the current post type is non-hierarchical,
			 * such as posts.
			 *
			 * @since 1.5.0
			 *
			 * @param string $column_name The name of the column to display.
			 * @param int    $post_id     The current post ID.
			 */
			do_action( 'manage_posts_custom_column', $column_name, $post->ID );
		}

		/**
		 * Fires for each custom column of a specific post type in the Posts list table.
		 *
		 * The dynamic portion of the hook name, `$post->post_type`, refers to the post type.
		 *
		 * @since 3.1.0