如何搜索一长串属性并将其与 fontawesome 图标匹配？
Posted
技术标签:
【中文标题】如何搜索一长串属性并将其与 fontawesome 图标匹配？【英文标题】：How do I search through a long list of attributes and match it to fontawesome icon? 【发布时间】：2019-06-11 09:59:29 【问题描述】：我有一个PropertyFeatureOption 模型，它的数据如下所示：
+-----+-------------------------+--------+----------+---------+-------------------------+-------------------------+
| id | name | shared | exterior | amenity | created_at | updated_at |
+-----+-------------------------+--------+----------+---------+-------------------------+-------------------------+
| 101 | Dining Room | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 102 | Security | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 103 | Common Area | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 104 | Swimming Pool | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 105 | Automatic Gate | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 106 | Panic Button | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 107 | Car Port | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 108 | Electric Generator | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 109 | Water Pump | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 110 | Air Conditioning | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 111 | Cable | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 112 | Kitchen | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 113 | Security Guard | false | false | false | 2014-01-30 00:07:36 UTC | 2014-01-30 00:07:36 UTC |
| 114 | Family Room | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 115 | Other Room | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 116 | Patio | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 117 | Electronic Security | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 118 | Garage | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 119 | Dish | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 120 | Furnished | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 121 | Living Room | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 122 | Canteen | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 123 | Telephone Lines | false | false | false | 2014-01-30 00:07:37 UTC | 2014-01-30 00:07:37 UTC |
| 124 | Restroom | false | false | false | 2014-01-30 00:07:38 UTC | 2014-01-30 00:07:38 UTC |
| 125 | Powder Room | false | false | false | 2014-01-30 00:07:38 UTC | 2014-01-30 00:07:38 UTC |
| 126 | Den/Study | false | false | false | 2014-01-30 00:07:38 UTC | 2014-01-30 00:07:38 UTC |
| 127 | Water Tank | false | false | false | 2014-01-30 00:07:38 UTC | 2014-01-30 00:07:38 UTC |
| 128 | Partitions | false | false | false | 2014-01-30 00:07:39 UTC | 2014-01-30 00:07:39 UTC |
| 129 | Fully Fenced | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 130 | Garden Area | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 131 | Ceiling Fans | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 132 | Grilled | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 133 | Kitchen Built-in(s) | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 134 | Main Level Entry | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 135 | Unfurnished | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
| 136 | Barn | false | false | false | 2014-02-27 06:31:34 UTC | 2014-02-27 06:31:34 UTC |
总共有 117 条记录。
我要做的是在Property#Show 页面上，这取决于我正在查看的property 对象上是否存在任何这些，我想显示与这些条目相关的字体真棒图标。
所以，基本上我需要硬编码这些记录的不同名称之间的链接，以及各种字体很棒的图标。
例如，如果property 有一个property_feature_option.name.eql? "Car Port"（即上表中的ID=107），我想显示fa fa-car。 property_feature_options 可以有多种映射到字体很棒的图标名称。
例如Panic Button, Security Guard & Electronic Security 可以转到fa fa-bullhorn（只是一个例子）。
我该如何处理？不太确定从哪里开始。
【问题讨论】：
【参考方案1】：一个选项是@iGian 所说的，将它们放在哈希中。为了保持整洁，您应该将它们放入单独的命名空间中：
module FeatureIconizer
module_function
ICONS =
'Car Port' => 'fa-car',
'Panic Button' => 'fa-bullhorn',
'Security Guard' => 'fa-bullhorn',
...
DEFAULT = 'fa-house'
def icon_class(feature)
'fa ' + ICONS.fetch(feature.name, DEFAULT)
end
end
另一个选项，正如您在 DB 中定义的功能一样，也是在 DB 中添加图标。这样一来，您无需部署即可更改一个图标。
【讨论】：
有趣，您的意思是在该表中为Icon Name 添加一列，然后在查询属性特征时只查询该列？这是一个有趣的选择。
是的。这主要取决于您是否将图标映射视为数据的一部分，以及您不会过多地使用错误 SQL 的能力。
是的，这是一个非常优雅的解决方案，我更喜欢它。它适用于这个特定的应用程序。【参考方案2】：
我可能会做这样的事情，我定义了一个纯 Ruby 类只是为了展示，但你可以针对 Rails 进行调整。
class PropertyFeatureOption
attr_reader :name
ICON_MAP = "fa fa-car" => ["Car Port"], "fa fa-bullhorn" => ["Panic Button", "Security Guard", "Electronic Security"] .freeze
def initialize(name)
@name = name
end
def icon
icon = ICON_MAP.select |k, v| v.include? name .keys.first || "fa fa-whathever"
icon.to_s
end
end
property_feature_option = PropertyFeatureOption.new("Panic Button")
property_feature_option.icon #=> "fa fa-bullhorn"
property_feature_option = PropertyFeatureOption.new("Not in list")
property_feature_option.icon #=> "fa fa-whathever"
【讨论】：
您似乎在反向使用哈希。哈希是为了查找而设计的，所以切换键和值不是更有意义，然后您可以简单地使用ICON_MAP[name] 查找它们？
@DaveSlutzkin，是的，你是对的，但我想让 ICON_MAP 哈希保持简单，因为它是硬编码的。
我喜欢这个建议，但对于我的特殊情况，我更喜欢@rewritten 的回答。不过感谢您的建议！以上是关于如何搜索一长串属性并将其与 fontawesome 图标匹配？的主要内容，如果未能解决你的问题，请参考以下文章