日期过滤在 Rails 上不起作用 - Ransack，Activeadmin

Question

我的应用程序使用 Rails、Activeadmin 和 Ransack。

最近我注意到日期过滤无法正常工作。我还检查了与 Activeadmin 分开的控制器，但问题仍然存在。会不会是 Ransack 问题？

日志表明参数被正确传递，并且它们还在URL.. 计数工作正常，但实际查询没有发生。知道这里会发生什么吗？我最近确实升级到 Ruby 2.2，但我不确定这是否相关。

参数如下：

Started GET "/admin/users?utf8=%E2%9C%93&q%5Bcreated_at_gteq%5D=2015-11-01&q%5Bcreated_at_lteq%5D=2015-11-30&q%5Brole_contains%5D=read&commit=Filter&order=id_desc" for 50.17.182.190 at 2015-11-13 05:16:52
 +0000

在这里您可以看到 SQL 查询中从未使用过日期：

User Load (0.8ms)  SELECT  "users".* FROM "users"  WHERE ("users"."role" ILIKE '%read%')  ORDER BY "users"."id" desc LIMIT 30 OFFSET 0

完整日志如下：

Started GET "/admin/users?utf8=%E2%9C%93&q%5Bcreated_at_gteq%5D=2015-11-01&q%5Bcreated_at_lteq%5D=2015-11-30&q%5Brole_contains%5D=read&commit=Filter&order=id_desc" for 50.17.182.190 at 2015-11-13 05:16:52
 +0000
Processing by Admin::UsersController#index as HTML
  Parameters: {"utf8"=>"✓", "q"=>{"created_at_gteq"=>"2015-11-01", "created_at_lteq"=>"2015-11-30", "role_contains"=>"read"}, "commit"=>"Filter", "order"=>"id_desc"}
  User Load (0.4ms)  SELECT  "users".* FROM "users"  WHERE "users"."id" = 1  ORDER BY "users"."id" ASC LIMIT 1
   (0.4ms)  SELECT COUNT(*) FROM "users"  WHERE ("users"."role" ILIKE '%read%')
   (0.3ms)  SELECT COUNT(*) FROM "users"  WHERE ("users"."role" ILIKE '%read%') AND (created_at > '2015-11-01 00:00:00.000000')
   (0.3ms)  SELECT COUNT(*) FROM "users"  WHERE ("users"."role" ILIKE '%read%') AND (created_at > '2015-11-09 00:00:00.000000')
   (0.3ms)  SELECT COUNT(count_column) FROM (SELECT  1 AS count_column FROM "users"  WHERE ("users"."role" ILIKE '%read%') LIMIT 30 OFFSET 0) subquery_for_count
  CACHE (0.0ms)  SELECT COUNT(count_column) FROM (SELECT  1 AS count_column FROM "users"  WHERE ("users"."role" ILIKE '%read%') LIMIT 30 OFFSET 0) subquery_for_count
  CACHE (0.0ms)  SELECT COUNT(*) FROM "users"  WHERE ("users"."role" ILIKE '%read%')
  CACHE (0.0ms)  SELECT COUNT(count_column) FROM (SELECT  1 AS count_column FROM "users"  WHERE ("users"."role" ILIKE '%read%') LIMIT 30 OFFSET 0) subquery_for_count
  User Load (0.8ms)  SELECT  "users".* FROM "users"  WHERE ("users"."role" ILIKE '%read%')  ORDER BY "users"."id" desc LIMIT 30 OFFSET 0

Answer 1

我刚遇到这样的问题。事实证明，我提交的日期是美国格式 (mm-dd-yyyy)，但服务器将其解释为 yyyy-mm-dd 或 dd-mm-yyy，这导致您的日期无提示地失败并且 return nil 一旦 rails/ruby 处理它。我安装了 american_date gem 并修复了它。

Ruby 内部（在 Date 和 DateTime 类中）用于处理美国日期就好了，但社区已经决定（可能是正确的）美国人-style 日期对于国际用户来说不是一个好的默认值。所以这可能就是您在升级 ruby.

后注意到这一点的原因

日期过滤在 Rails 上不起作用 - Ransack，Activeadmin

Date filtering is not working on Rails - Ransack, Activeadmin

ruby-on-rails

activeadmin

ransack