如何在rails视图中传递哈希数据

Question

我面临问题

undefined local variable or method `student_details'

同时尝试编写一个Ruby方法，以便在浏览器中显示动态数据。我使用了view_component gem。我的"组分.rb"；文件如下所示：

module Shared
module Student
class Component < ViewComponent::Base
def initialize(title:)
@title = title
end
student_details = {name: "John Doe", course: "Rails Development", student_id: "1"}
end
end
end

并且"；component.html.erb"；看起来是：

<div class="font-montserrat flex flex-col bg-white text-shadow-none">  
<%= student_details.student_id %>
<%= student_details.name %>
<%= student_details.course %>
</div>

Answer 1

只能通过实例变量(@var(或ruby方法(def method(访问数据。您可以使用变量来完成此操作

module Shared
module Student
class Component < ViewComponent::Base
def initialize(title:)
@title = title
@student_details = {name: "John Doe", course: "Rails Development", student_id: "1"}
end
end
end
end

或者用方法

module Shared
module Student
class Component < ViewComponent::Base
def initialize(title:)
@title = title
end
def student_details
{name: "John Doe", course: "Rails Development", student_id: "1"}
end
end
end
end