在 Ruby on Rails 中循环对象属性
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Loop over Object attributes in Ruby on Rails
提问by Robert B
Is it possible to loop over an object's attributes in Rails? I have an object and rather than code up each attribute in the view, I want to output each of them in the view as there are quite a few.
是否可以在 Rails 中循环对象的属性？我有一个对象，而不是在视图中编码每个属性，我想在视图中输出每个属性，因为有很多。
I have an object called @work_profilewhich has many attributes, mainly boolean check box values.
我有一个名为的对象@work_profile，它具有许多属性，主要是布尔复选框值。
Edit: I see I can use @work_profile.attributes. Any help on formatting the hash into something more user friendly would be great.
编辑：我看到我可以使用@work_profile.attributes. 任何关于将哈希格式化为更用户友好的东西的帮助都会很棒。
回答by mbreining
The ActiveRecord::Base.attributes()method returns a hash of all the attributes. You can use that to loop over all attributes.
该ActiveRecord的:: Base.attributes（）方法返回的所有属性的哈希值。您可以使用它来遍历所有属性。
@work_profile.attributes.each do |attr_name, attr_value|
...
end
In a view, this would give:
从某种意义上说，这将给出：
<% @work_profile.attributes.each do |attr_name, attr_value| %>
<div class="work_profile_attribute">
<%= attr_name %>: <%= attr_value %>
</div>
<% end %>
