ruby-on-rails - 使用 Ruby Driver 在 Rethinkdb Real 中创建一个复杂的查询

Question

我正在为 rethink db 使用 ruby​​ 驱动程序，我遇到了一些带有数组的嵌套元素的问题。

我的数据结构如下

[{"family_name"=>"Adam"},
 {"family_name"=>"Bobby"},
 {"family_name"=>"Crissy",
  "groups"=>
   [{"logo_url"=>"https://www.logourl.com/1111.png",
     "name"=>"Sample Name 1",
     "profile_url"=>"https://www.profileurl.com/groups?gid=1111"},
    {"logo_url"=>"https://www.logourl.com/2222.png",
     "name"=>"Sample Name 2",
     "profile_url"=>"https://www.profileurl.com/groups?gid=2222"},
    {"logo_url"=>"https://www.logourl.com/3333.png",
     "name"=>"Sample Name 3",
     "profile_url"=>"https://www.profileurl.com/groups?gid=3333"},
   ]},
 {"family_name"=>"Bobby"},
 {"family_name"=>"Hillton",
  "groups"=>
   [{"logo_url"=>"https://www.logourl.com/4444.png",
     "name"=>"Sample Name 1",
     "profile_url"=>"https://www.profileurl.com/groups?gid=4444"},
    {"logo_url"=>"https://www.logourl.com/5555.png",
     "name"=>"Sample Name 2",
     "profile_url"=>"https://www.profileurl.com/groups?gid=55555"},
    {"logo_url"=>"https://www.logourl.com/6666.png",
     "name"=>"Sample Name 3",
     "profile_url"=>"https://www.profileurl.com/groups?gid=12345"},
    ]}]

期望的结果是返回具有以“12345”结尾的“profile_url”链接的行。混合使用 Ruby 和 Javascript，我尝试了这个:

'r.table("profiles").filter{ |row| row['groups'].contains(r.js('function(group) { return group('profile_url').match("12345$") }'))}.run(conn)'

但是，它仍然没有返回结果，有没有明确的方法将它与 ruby​​ 驱动程序一起使用？？？

期望的结果是

[{"family_name"=>"Hillton",
  "groups"=>
   [{"logo_url"=>"https://www.logourl.com/4444.png",
     "name"=>"Sample Name 1",
     "profile_url"=>"https://www.profileurl.com/groups?gid=4444"},
    {"logo_url"=>"https://www.logourl.com/5555.png",
     "name"=>"Sample Name 2",
     "profile_url"=>"https://www.profileurl.com/groups?gid=55555"},
    {"logo_url"=>"https://www.logourl.com/6666.png",
     "name"=>"Sample Name 3",
     "profile_url"=>"https://www.profileurl.com/groups?gid=12345"},
    ]}]

请帮助并提前致谢!!! :D

Answer 1

我想这会做你想做的:

r.table('profiles').filter {|row|
  row['groups'].contains {|group|
    group['profile_url'].match('12345$')
  }
}