使用Ruby

时间:2018-01-27 20:39:30

标签: ruby-on-rails ruby sinatra

我是Ruby的新手,我尝试渲染一个名为database.rb的单独文件中的数组:

Data = [
  {
    title: "First",
    content: "Lorem ipsum...",
    photo: "image1"
  },
  {
    title: "Second",
    content: "Eventually ...",
    photo: "image2"
  },
  {
    title: "Third",
    content: "also to Kim’s ....",
   photo: "image3"
  }
]

我现在想在视图中渲染此数组。

在我的app.rb中,我有这段代码:

require "sinatra"
require "sinatra/activerecord"

require_relative "database"

["/", "/articles"].each do |path|
  get path do
      @database = Data
    erb :index
  end
end

在我看来索引:

<% @database.each do |article| %>

    <!-- Blog Post -->
    <div class="card mb-4">
      <img class="card-img-top" src="<%= article.photo %>" alt="">
      <div class="card-body">
        <h2 class="card-title oink"><%= article.title %></h2>
        <p class="card-text oink"><%= article.content %></p>
      </div>
      <div class="card-footer text-muted">
      </div>
    </div>

  <% end %>

如何让它发挥作用?因为似乎无法识别属性标题,内容和照片。 我该做什么?创建模型?但怎么样?

1 个答案:

答案 0 :(得分:3)

您的数组由哈希项组成。如果你想坚持使用哈希,这是访问值的方法(按键)

<!-- Blog Post -->
<div class="card mb-4">
  <img class="card-img-top" src="<%= article[:photo] %>" alt="">
  <div class="card-body">
    <h2 class="card-title oink"><%= article[:title] %></h2>
    <p class="card-text oink"><%= article[:content] %></p>
  </div>
  <div class="card-footer text-muted">
  </div>
</div>
  

否则,如果您想拥有方法,可以使用Ruby Struct

Article = Struct.new(:title, :content, :photo)

Data = [
  Article.new("First", "Lorem ipsum...", "image1"),
  Article.new("Second", "Eventually ...", "image2"),
  Article.new("Third", "also to Kim’s ....", "image3")
]

现在你可以像在你的代码段中那样做了