wechat login: modify error tip when account binded

app/libs/hot_search_keyword.rb

@@ -0,0 +1,22 @@
+class HotSearchKeyword
+  class << self
+    def add(keyword)
+      return if keyword.blank?
+      Rails.cache.data.zincrby(redis_key, 1, keyword)
+    end
+
+    def hot(limit = 5)
+      Rails.cache.data.zrevrange(redis_key, 0, limit - 1)
+    end
+
+    def available?
+      Rails.cache.is_a?(ActiveSupport::Cache::RedisStore)
+    end
+
+    private
+
+    def redis_key
+      'educoder:es:hot_keyword'
+    end
+  end
+end

app/services/create_bind_user_service.rb

@@ -17,7 +17,7 @@ class CreateBindUserService < ApplicationService
 
     bind_user = User.try_to_login(params[:username], params[:password])
     raise Error, '用户名或者密码错误' if bind_user.blank?
-    raise Error, '该账号已被绑定' if bind_user.bind_open_user?(params[:type].to_s)
+    raise Error, '该账号已被其他微信号绑定，请更换其他账号进行绑定' if bind_user.bind_open_user?(params[:type].to_s)
 
     ActiveRecord::Base.transaction do
       open_user.user_id = bind_user.id