我怎样才能显示“明天"?Ruby On Rails 中的日历列表? [英] How can I display "Tomorrow" of calendar list in Ruby On Rails?

问题描述

我是 Rails 的新手.

I'm new to Rails.

我尝试创建日历列表​​，但遇到了一些问题.

I tried to create a calendar list and I encountered some problem.

我是这样做的:

这是我的代码

查看:

<% @start_date.each do |day, posts| %>
 <% if day.today? %>
  <h4 id="today_title">Today <%= day.strftime("%b %d")%></h4>
  <% posts.each do |post| %>
    <p class="post_title">。<%= post.title %></p>
  <%end%>   
 <%else%>
  <h4 class="other_day_title"><%= day.strftime("%A %b %d") %></h4>
  <% posts.each do |post| %>
    <p class="post_title">。<%= post.title %></p>
  <%end%>
 <%end%>
<%end%>

控制器:

def index
 @posts = Post.all.order(:start_time)
 @date = params[:month] ? Date.parse(params[:month]) : Date.today
 @start_date = @posts.group_by {|t| t.start_time.beginning_of_day }
end

同样，我尝试将一些代码设为 <% if day.today?%> 像这样显示明日栏:

Similarly,I try the some code as <% if day.today? %> to display the tomorrow bar like this:

<% if (day+1).today? %>

<% if day.today+1.day? %>

<% if day.today.next_day? %>

<% if day.tomorrow? %>

但是我得到了一些错误:

But I got the some error :

undefined method `today' for Sun, 07 Feb 2016 00:00:00 UTC +00:00:Time

有答案吗?

感谢阅读:)

推荐答案

你需要使用类似的东西:

You need to use something like:

<% if (day-1.day).to_date.today? %>
<% if day.to_date.eql?(Date.today+1.day) %>
<% if day.to_date.eql?(Date.today.next_day) %>
<% if day.to_date.eql?(Date.tomorrow) %>

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