管理员用户列表筛选问题

app/views/admins/users/index.html.erb

@@ -12,7 +12,7 @@
 
     <div class="form-group mr-2">
       <label for="identity">职业：</label>
-      <% identity_options = [['全部', '']] + UserExtension.identities.map { |k, v| [I18n.t("user.identity.#{k}"), v] } %>
+      <% identity_options = [['全部', ''], ['教师', 0], ['学生', 1], ['专业人士', 2]] %>
       <%= select_tag(:identity, options_for_select(identity_options), class: 'form-control') %>
     </div>