我按照Railscast #213创建日历,显示current_user.events
. 但是我的日历没有显示它们。
我认为,问题在于我使用datetime
而不是date
Ryan 在他的演员阵容中使用的那样。但我无法理解如何仅从我的datetime
.
我试图将@date
变量更改为
@date = params[:datetime] ? DateTime.parse(params[:datetime]).to_date : Date.today
代替
@date = params[:date] ? Date.parse(params[:date]) : Date.today
这在演员阵容中使用,但没有帮助。
所以,我events_controller#index
的是:
def index
@events = current_user.events.all
@events_by_date = @events.group_by(&:start_date)
@event = Event.new(params[:event])
@date = params[:datetime] ? DateTime.parse(params[:datetime]).to_date : Date.today
end
日历助手和events#index
我没有改变。
calendar_helper.rb
module CalendarHelper
def calendar(date = Date.today, &block)
Calendar.new(self, date, block).table
end
class Calendar < Struct.new(:view, :date, :callback)
HEADER = %w[Monday Tuesday Wednesday Thursday Friday Saturday Sunday]
START_DAY = :monday
delegate :content_tag, to: :view
def table
content_tag :table, class: 'calendar' do
header + week_rows
end
end
def header
content_tag :tr do
HEADER.map { |day| content_tag :th, day }.join.html_safe
end
end
def week_rows
weeks.map do |week|
content_tag :tr do
week.map { |day| day_cell(day) }.join.html_safe
end
end.join.html_safe
end
def day_cell(day)
content_tag :td, view.capture(day, &callback), class: day_classes(day)
end
def day_classes(day)
classes = []
classes << 'today' if day == Date.today
classes << 'notmonth' if day.month != date.month
classes.empty? ? nil : classes.join(' ')
end
def weeks
first = date.beginning_of_month.beginning_of_week(START_DAY)
last = date.end_of_month.end_of_week(START_DAY)
(first..last).to_a.in_groups_of(7)
end
end
end
index.html.erb
<div id="events">
<h2 id="month">
<%= link_to "<", date: @date.prev_month %>
<%= @date.strftime("%B %Y") %>
<%= link_to ">", date: @date.next_month %>
</h2>
<%= calendar @date do |date| %>
<%= date.day %>
<% if @events_by_date[date] %>
<ul>
<% @events_by_date[date].each do |event| %>
<li><%= link_to event.name, event %></li>
<% end %>
</ul>
<% end %>
<% end %>
</div>
谢谢你的帮助!