Blog Patrick Espake

ruby script/plugin install git://github.com/topfunky/calendar_helper.git

ruby script/generate calendar_styles

<%= stylesheet_link_tag "calendar/grey/style" %>

def index
  if params[:month] and params[:year]
    @year = params[:year].to_i
    @month = params[:month].to_i
 
    first = Date.civil(@year, @month, 1)
    last = Date.civil(@year, @month, -1)
 
    @events = Event.paginate :all,
      :conditions => ["(start_date BETWEEN ? AND ?) OR (end_date BETWEEN ? AND ?)", first.to_datetime, last.to_datetime, first.to_datetime, last.to_datetime],
      :page => params[:page]
 
    calendar
  end
end
 
private
 
def calendar
  @list_events_days = events_days(@events)
 
  @next_month = @month
  @next_year  = @year
 
  @previous_month = @month
  @previous_year  = @year
 
  if @month == 12
    @next_month = 1
    @next_year += 1
  else
    @next_month += 1
  end
 
  if @month == 1
    @previous_month = 12
    @previous_year -= 1
  else
    @previous_month -= 1
  end
end
 
def events_days(events)
  list_events_days = []
  events.each do |e|
    start_date = e.start_date.to_date
    end_date = e.end_date.to_date
 
    range = start_date..end_date
    range.each do |d|
      list_events_days << d
    end
  end
 
  return list_events_days
end

<%= calendar(
  {
    :year => @year,
    :month => @month,
    :previous_month_text => link_to(
      image_tag("icons/previous.png"),
      :action => 'index',
      :month => @previous_month,
      :year => @previous_year),
    :next_month_text => link_to(
      image_tag("icons/next.png"),
      :action => 'index',
      :month => @next_month,
      :year => @next_year)
}) do |d|
  if @list_events_days.include?(d.to_date)
    [link_to(d.mday, :action => 'day', :date => d.to_date), { :class => "specialDay" }]
  end
end
%>

...}) do |d|
    if @list_events_days.include?(d.to_date)
      [link_to(d.mday, :action => 'day', :date => d.to_date), { :class => "specialDay" }]
    end
  end

def day
  if params[:date]
    @date = params[:date].to_date
    @year = @date.year
    @month = @date.month
 
    @events = Event.paginate :all,
      :conditions => ["(start_date <= ? and end_date >= ?) OR (start_date BETWEEN ? AND ?) OR (end_date BETWEEN ? AND ?)", @date, @date, "#{@date} 00:00:00", "#{@date} 23:59:59", "#{@date} 00:00:00", "#{@date} 23:59:59"],
      :page => params[:page]
 
    calendar
 
    first = Date.civil(@year, @month, 1)
    last = Date.civil(@year, @month, -1)
 
    events_month = Event.paginate :all,
      :conditions => ["(start_date BETWEEN ? AND ?) OR (end_date BETWEEN ? AND ?)", first.to_datetime, last.to_datetime, first.to_datetime, last.to_datetime],
      :page => params[:page]
 
    @list_events_days = events_days(events_month)
  end
end