fix

app/controllers/accounts_controller.rb

@@ -1,6 +1,5 @@
 class AccountsController < ApplicationController
 
-  include ErrorCommon
   #skip_before_action :check_account, :only => [:logout]
 
   def index

app/controllers/attachments_controller.rb

@@ -5,7 +5,6 @@ class AttachmentsController < ApplicationController
   before_action :require_login, :check_auth
   before_action :find_file, only: %i[show destroy]
 
-  include ErrorCommon
   include ApplicationHelper
 
   def show

app/controllers/concerns/controller_rescue_handler.rb

@@ -15,5 +15,9 @@ module ControllerRescueHandler
     rescue_from ActiveRecord::RecordInvalid do |ex|
       render_error(ex.record.errors.full_messages.join(','))
     end
+    rescue_from Exception do |e|
+      logger.error e
+      render json: {status: -1, message: e.message}
+    end
   end
 end

app/controllers/concerns/error_common.rb

@@ -1,10 +0,0 @@
-module ErrorCommon
-  extend ActiveSupport::Concern
-
-  included do
-    rescue_from Exception do |e|
-      logger.error e
-      render json: {status: -1, message: e.message}
-    end
-  end
-end

app/models/searchable/shixun.rb

@@ -21,8 +21,8 @@ module Searchable::Shixun
 
   def searchable_user_data
     {
-      author_name: user.real_name,
+      author_name: user&.real_name,
-      author_school_name: user.school_name,
+      author_school_name: user&.school_name,
     }
   end