更改：分页查询数据

app/controllers/api/v1/users/memos_controller.rb

@@ -7,6 +7,9 @@ class Api::V1::Users::MemosController < Api::V1::BaseController
     @resident_expert.increment!(:visits)
     return render_error("用户未完成专家入驻") if @resident_expert.blank?
     @memos = @observe_user.memos.order("#{sort_by} #{sort_direction}")
+    @total_viewed_count = @memos.sum(:viewed_count)
+    @total_praises_count = @memos.sum(:praises_count)
+    @total_replies_count =@memos.sum(:replies_count)
     @memos = kaminari_paginate(@memos)
   end
 

app/views/api/v1/users/memos/index.json.jbuilder

@@ -2,9 +2,9 @@ json.total_count @memos.total_count
 json.resident_expert do 
   json.partial! 'api/v1/resident_experts/resident_expert', locals: { resident_expert: @resident_expert } 
 end
-json.total_viewed_count @memos.sum(:viewed_count)
-json.total_praises_count @memos.sum(:praises_count)
-json.total_replies_count @memos.sum(:replies_count)
+json.total_viewed_count @total_viewed_count
+json.total_praises_count @total_praises_count
+json.total_replies_count @total_replies_count
 json.memos @memos do |memo|
   json.partial! 'api/v1/users/memos/memo', locals: { memo: memo, current_user: current_user } 
 end