更改：项目成员添加提示

app/controllers/members_controller.rb

@@ -65,13 +65,13 @@ class MembersController < ApplicationController
 
   def check_member_exists!
     @current_user_header_team = Team.joins(:team_users, :team_projects).where(team_projects: {project_id: @project.id}, team_users: {user_id: current_user.id}).order(authorize: :desc).take
-    return render_error("user_id为#{params[:user_id]}的用户已经是项目成员") if member_exists? || (params[:user_id].to_i == current_user.id && @current_user_header_team.present?)
+    return render_error("#{@user&.nickname}已经是项目成员") if member_exists? || (params[:user_id].to_i == current_user.id && @current_user_header_team.present?)
   end
 
   def check_member_not_exists!
     @current_user_header_team = Team.joins(:team_users, :team_projects).where(team_projects: {project_id: @project.id}, team_users: {user_id: current_user.id}).order(authorize: :desc).take
     return render_error("用户为组织成员，请到组织下操作！") if (params[:user_id].to_i == current_user.id && @current_user_header_team.present?) && !member_exists?
-    return render_error("user_id为#{params[:user_id]}的用户还不是项目成员") unless member_exists?
+    return render_error("#{@user&.nickname}还不是项目成员") unless member_exists?
   end
 
   def check_user_profile_completed