Users: count authored content in Users list table

src/wp-admin/includes/class-wp-users-list-table.php

@@ -374,7 +374,7 @@ public function get_columns() {
 			'name'     => __( 'Name' ),
 			'email'    => __( 'Email' ),
 			'role'     => __( 'Role' ),
-			'posts'    => _x( 'Posts', 'post type general name' ),
+			'posts'    => _x( 'Content', 'users list table authored content column name' ),
 		);
 
 		if ( $this->is_site_users ) {
@@ -408,7 +408,7 @@ protected function get_sortable_columns() {
 	public function display_rows() {
 		// Query the post counts for this page.
 		if ( ! $this->is_site_users ) {
-			$post_counts = count_many_users_posts( array_keys( $this->items ) );
+			$post_counts = count_many_users_posts( array_keys( $this->items ), $this->get_countable_post_types() );
 		}
 
 		foreach ( $this->items as $userid => $user_object ) {
@@ -599,12 +599,11 @@ public function single_row( $user_object, $style = '', $role = '', $numposts = 0
 					case 'posts':
 						if ( $numposts > 0 ) {
 							$row .= sprintf(
-								'<a href="%s" class="edit"><span aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></a>',
-								"edit.php?author={$user_object->ID}",
-								$numposts,
+								'<span aria-hidden="true">%s</span><span class="screen-reader-text">%s</span>',
+								number_format_i18n( $numposts ),
 								sprintf(
-									/* translators: Hidden accessibility text. %s: Number of posts. */
-									_n( '%s post by this author', '%s posts by this author', $numposts ),
+									/* translators: Hidden accessibility text. %s: Number of content items. */
+									_n( '%s content item by this author', '%s content items by this author', $numposts ),
 									number_format_i18n( $numposts )
 								)
 							);
@@ -647,6 +646,33 @@ protected function get_default_primary_column_name() {
 		return 'username';
 	}
 
+	/**
+	 * Returns the post types counted in the Users list table content column.
+	 *
+	 * Post types are limited to those with an admin UI that support authors, so the
+	 * count reflects user-managed content such as posts, pages, media, and custom
+	 * post types.
+	 *
+	 * @since 7.1.0
+	 *
+	 * @return string[] Post type names.
+	 */
+	protected function get_countable_post_types() {
+		return array_values(
+			array_filter(
+				get_post_types(
+					array(
+						'show_ui' => true,
+					),
+					'names'
+				),
+				static function ( $post_type ) {
+					return post_type_supports( $post_type, 'author' );
+				}
+			)
+		);
+	}
+
 	/**
 	 * Returns an array of translated user role names for a given user object.
 	 *

tests/phpunit/tests/admin/wpUsersListTable.php

@@ -30,4 +30,86 @@ public function test_get_views_should_return_views_by_default() {
 
 		$this->assertSame( $expected, $this->table->get_views() );
 	}
+
+	/**
+	 * @ticket 29128
+	 *
+	 * @covers WP_Users_List_Table::get_columns
+	 */
+	public function test_get_columns_should_label_posts_column_as_content() {
+		$columns = $this->table->get_columns();
+
+		$this->assertSame( 'Content', $columns['posts'] );
+	}
+
+	/**
+	 * @ticket 29128
+	 *
+	 * @covers WP_Users_List_Table::display_rows
+	 */
+	public function test_display_rows_should_count_authored_content_items() {
+		register_post_type(
+			'book',
+			array(
+				'public'   => true,
+				'show_ui'  => true,
+				'supports' => array( 'title', 'author' ),
+			)
+		);
+
+		register_post_type(
+			'secret_note',
+			array(
+				'public'   => true,
+				'show_ui'  => false,
+				'supports' => array( 'title', 'author' ),
+			)
+		);
+
+		$user_id = self::factory()->user->create( array( 'role' => 'author' ) );
+
+		self::factory()->post->create(
+			array(
+				'post_author' => $user_id,
+				'post_type'   => 'post',
+			)
+		);
+
+		self::factory()->post->create(
+			array(
+				'post_author' => $user_id,
+				'post_type'   => 'page',
+			)
+		);
+
+		self::factory()->post->create(
+			array(
+				'post_author' => $user_id,
+				'post_type'   => 'book',
+			)
+		);
+
+		self::factory()->post->create(
+			array(
+				'post_author' => $user_id,
+				'post_type'   => 'secret_note',
+			)
+		);
+
+		try {
+			$this->table->items = array(
+				$user_id => get_userdata( $user_id ),
+			);
+
+			ob_start();
+			$this->table->display_rows();
+			$output = ob_get_clean();
+
+			$this->assertStringNotContainsString( 'edit.php?author=' . $user_id, $output );
+			$this->assertStringContainsString( '3 content items by this author', $output );
+		} finally {
+			unregister_post_type( 'book' );
+			unregister_post_type( 'secret_note' );
+		}
+	}
 }