如何在Rails控制台中获得良好的格式设置

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我想要这样的东西看起来很好看:

>> ProductColor.all
=> [#<ProductColor id: 1, name: "White", internal_name: "White", created_at: "2009-06-10 04:02:44", updated_at: "2009-06-10 04:02:44">, #<ProductColor id: 2, name: "Ivory", internal_name: "Ivory", created_at: "2009-06-10 04:02:44", updated_at: "2009-06-10 04:02:44">, #<ProductColor id: 3, name: "Blue", internal_name: "Light Blue", created_at: "2009-06-10 04:02:44", updated_at: "2009-06-10 04:02:44">, #<ProductColor id: 4, name: "Green", internal_name: "Green", created_at: "2009-06-10 04:02:44", updated_at: "2009-06-10 04:02:44">]

这不管用:

>> ProductColor.all.inspect
=> "[#<ProductColor id: 1, name: \"White\", internal_name: \"White\", created_at: \"2009-06-10 04:02:44\", updated_at: \"2009-06-10 04:02:44\">, #<ProductColor id: 2, name: \"Ivory\", internal_name: \"Ivory\", created_at: \"2009-06-10 04:02:44\", updated_at: \"2009-06-10 04:02:44\">, #<ProductColor id: 3, name: \"Blue\", internal_name: \"Light Blue\", created_at: \"2009-06-10 04:02:44\", updated_at: \"2009-06-10 04:02:44\">, #<ProductColor id: 4, name: \"Green\", internal_name: \"Green\", created_at: \"2009-06-10 04:02:44\", updated_at: \"2009-06-10 04:02:44\">]"

这也不管用:

>> ProductColor.all.to_yaml
=> "--- \n- !ruby/object:ProductColor \n  attributes: \n    name: White\n    created_at: 2009-06-10 04:02:44\n    updated_at: 2009-06-10 04:02:44\n    id: \"1\"\n    internal_name: White\n  attributes_cache: {}\n\n- !ruby/object:ProductColor \n  attributes: \n    name: Ivory\n    created_at: 2009-06-10 04:02:44\n    updated_at: 2009-06-10 04:02:44\n    id: \"2\"\n    internal_name: Ivory\n  attributes_cache: {}\n\n- !ruby/object:ProductColor \n  attributes: \n    name: Blue\n    created_at: 2009-06-10 04:02:44\n    updated_at: 2009-06-10 04:02:44\n    id: \"3\"\n    internal_name: Light Blue\n  attributes_cache: {}\n\n- !ruby/object:ProductColor \n  attributes: \n    name: Green\n    created_at: 2009-06-10 04:02:44\n    updated_at: 2009-06-10 04:02:44\n    id: \"4\"\n    internal_name: Green\n  attributes_cache: {}\n\n"

我该怎么做?

提问于
用户回答回答于

y方法是获得一些漂亮的YAML输出的方便方法。

y ProductColor.all

假设你在 script/console

对于Rails 3.2+,需要先执行以下代码,然后才能使该y方法正常工作:

YAML::ENGINE.yamler = 'syck'

ruby文档

在较旧的Ruby版本中,即。<= 1.9,Syck仍然提供,但是随着Ruby 2.0.0的发布,它完全被删除了。

对于rails 4 / ruby​​ 2,你可以使用

puts object.to_yaml
用户回答回答于

你应该尝试hirb。在ruby控制台中格式化对象。你的脚本/控制台会话如下所示:

>> require 'hirb'
=> true
>> Hirb.enable
=> true
>> ProductColor.first
+----+-------+---------------+---------------------+---------------------+
| id | name  | internal_name | created_at          | updated_at          |
+----+-------+---------------+---------------------+---------------------+
| 1  | White | White         | 2009-06-10 04:02:44 | 2009-06-10 04:02:44 |
+----+-------+---------------+---------------------+---------------------+
1 row in set
=> true

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