Question

如何按照列表的正确顺序显示Date.current的“TESTING”一词？

<% @lifetime_years.sort.each do |year, lifetimes| %>
  <%= year.strftime('%Y') %>
  <% lifetimes.group_by { |t| t.deadline.beginning_of_month }.sort.each do |month, lifetimes| %>
    <%= month.strftime('%B') %>
    <% for lifetime in lifetimes %>
      <%= lifetime.deadline %>: <%= lifetime.name %>
    <% end %>
  <% end %>
<% end %>

例如，

2016
  January
    18: Run a Marathon (aka lifetime object)
    25: Eat a piece of poop (aka lifetime object)
  February
    1: Resolve SO Question (aka lifetime object)
    1: TESTING
  March
    5: Write a Book (aka lifetime object)

换句话说，如何定位排序中的特定日期，以便我可以添加与lifetime无关的其他信息？

更新

<% @lifetime_years.sort.each do |year, lifetimes| %>
  <%= year.strftime('%Y') %>
  <% lifetimes.group_by { |t| t.deadline.beginning_of_month }.sort.each do |month, lifetime| %>
    <%= month.strftime('%B') %>
    <% for lifetime in lifetimes %>
      <%= lifetime.deadline %>: <%= lifetime.name %>
    <% end %>

#CHANGED THIS PARAGRAPH
<% @routines.each do |routine| %>
  <% if lifetime.deadline == Date.current %>
    <p><%= routine.action %></p>
  <% else %>
    NONE
  <% end %>
<% end %>

  <% end %>
<% end %>

这会正确列出当天的routines，但前提是lifetime存在deadline。我们是否可以列出当天的所有routines，即使不存在lifetime？

Answer 1

我认为你不需要。只需在您的ERB中注入一个if块：

<% @lifetime_years.sort.each do |year, lifetimes| %>
  <%= year.strftime('%Y') %>
  <% lifetimes.group_by { |t| t.deadline.beginning_of_month }.sort.each do |month, lifetime| %>
    <%= month.strftime('%B') %>
    <% for lifetime in lifetimes %>
      <%= lifetime.deadline %>: <%= lifetime.name %>
    <% end %>

    <% if lifetime == Date.current %>
      <%= "Some extra information from Ruby code" %>
      <p>Some extra plaintext</p>
    <% else %>
      <%= [lifetime, Date.current] %>
    <% end %>

  <% end %>
<% end %>

如何在排序中定位特定日期？

更新

1 个答案: