Ruby on Rails getting wrong number of arguments (1 for 0)

Question

I'm using similar code to Railscast 213 to display a calendar with records.

The do line is causing a "getting wrong number of arguments (1 for 0):

<%= calendar @date do |date| %>
    <%= date.day %>
    <% if @wolabors_by_date[date] %>
      <ul>
        <% @wolabors_by_date[date].each do |wolabor| %>
          <li><%= link_to wolabor.name, wolabor %></li>
        <% end %>
      </ul>
    <% end %>   
<% end %>

The calendar_helper.rb starts out with:

module CalendarHelper
    def calendar(date = Date.today, &block)
        Calendar.new(self, date, block).table   
    end

wolabors_controller.rb has

class WolaborsController <     ApplicationController
def index
  @wolabors = Wolabor.all
  @wolabors_by_date = @wolabors.group_by(&:date)
  @date = params[:date] ? Date.parse(params[:date]) : Date.today
end`

Could you post your @date definition in the controller index action ? I've found in the discussion about this Railscast , that the statement :first = date.beginning_of_month.beginning_of_week(START_DAY) gives the same arguments error . These methods are Rails 3.2 specific and if you are on lower version , you should upgrade . — R Milushev, Dec 10 '12 at 23:52
I hope everything is Ok now . If you have solved the problem , just tell us . — R Milushev, Dec 11 '12 at 12:36
I have never upgraded Rails app before. I'm upgrading this app from 3.1.3 to 3.2.8 -- and I'm running into issues with gems that are locking me at certain levels. But, that's a different issue. Thanks for the help! Qumara - if you enter your answer about the versions, I will accept it. — Reddirt, Dec 11 '12 at 15:17

Baconator507 · Accepted Answer · 2012-12-10T21:57:59.807

0

I think that first line is supposed to be

<% calendar_for @date do |date| %>

That railscast has been revised and it does not use that table_builder plugin in the new version.

http://railscasts.com/episodes/213-calendars-revised

edited Dec 10 '12 at 21:57

answered Dec 10 '12 at 21:41

Baconator507

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That gives me: undefined method `calendar_for' for #<#:0x007f84b0019398> – Reddirt Dec 10 '12 at 21:51
you are missing the plugin – Baconator507 Dec 10 '12 at 21:55
script/plugin install git://github.com/p8/table_builder.git – Baconator507 Dec 10 '12 at 21:56
213 revised doesn't use the calendar_for – Reddirt Dec 10 '12 at 22:09
Sorry, but I don't understand what table_builder has to do with it. – Reddirt Dec 10 '12 at 22:10
I believe it provides that calendar_for method – Baconator507 Dec 10 '12 at 22:13
I'm think 'script/plugin install' command is so Rails 2 :) I believe mr. Dave Burton is on Rails 3.2 ... – R Milushev Dec 10 '12 at 23:26
ahh sorry, I understand now. I thought the question was more about the railscast. I guess there must be something wrong with that helper method. Regardless I would checkout the revised episode which provides a helper method for building the calendar. – Baconator507 Dec 10 '12 at 23:58

score 0 · Answer 2 · answered Dec 11 '12 at 17:35

I've found in the discussion about this Railscast , that the statement :

first = date.beginning_of_month.beginning_of_week(START_DAY)

gives the same arguments error . It seems methods

beginning_of_month

and

beginning_of_week

are Rails 3.2 specific and if you are on lower version , you should upgrade.

Ruby on Rails getting wrong number of arguments (1 for 0)

2 Answers2