similar to: why doesn't an instance of Object get Class's new instance method?

>> reload! Reloading... => true >> puts Class < Module true => nil >> puts Module < Class false => nil >> puts Module < Object true => nil >> puts Object < Module false => nil >> Object.parent => Object The above indicates that the Class object instance inherits from the Module object instance and the Module object instance

Hello, I''m trying to install the rails on ubuntu 11.10, but when I put the command felipe@Felipe:~/Downloads/rubygems-1.8.15$ sudo gem install rails --no-r1 --no-rdoc ERROR: Loading command: install (LoadError) no such file to load -- zlib ERROR: While executing gem ... (NameError) uninitialized constant Gem::Commands::InstallCommand felipe@Felipe:~/Downloads/rubygems-1.8.15$

Hello I am rather new to Ruby and have been following along with the book "Ruby On Rails 3 Tutorial - Learn Ruby by Example - by Michael Hartl". I am currently in Chapter 3 which discusses static pages. In this chapter, I entered the following command into the prompt: "rails generate controller Pages home contact" and everything worked fine. Then the book directs me to

Hi! I got a class named EinsatzFilter which I serialized to session. Before saving to session it works afterwards I keep getting the message: "undefined method `to_s'' for #<Person:0x38c6ab8>". "Person" is a from ActiveRecord::Base inherited class. Code: class EinsatzFilter include ApplicationHelper attr_reader :personen, :monat, :projekte, :kunde

I searched the archives and found a thread about it, but I didn''t understand: are prepared statement used by ActiveRecord on those databases that could handle them (Postgresql, Mysql, Oracle etc)? In case they are not used, are they planned? Is there a roadmap about Rails I can find somewhere?

Hi all, I''m using Ubuntu 11.10 and the terminal to install and run Rails. Here is the process I''ve taken so far to setup Rails: > download and install Ruby 1.9.2 and Rails 3.1.0 -- I did this using ''sudo apt-get ruby1.9.1'' and ''sudo gem install rails'' > I made a new rails app using ''rails new path/to/app'' > I went

Hey all, Chronic will parse a date range in console: Chronic.parse(1/1/2011 - 1/1/2012, :guess => false) => 2012-01-01 12:00:00 -0500..2012-01-01 12:00:01 -0500 However, when I use logger to check if it''s parsing in application, it is not: logger.info "The value of history date is #{history_date}" => The value of history date is 1/1/2011 - 1/1/2012

I''m using Rails 3.0.0rc and have the following models: class User  has_many :readings  has_many :conversations, :through=>:readings end class Reading  belongs_to :user  belongs_to :conversation end class Conversation  has_many :readings  has_many :users, :through=>:readings end and this controller code: class ConversationsController  def show    @user =

Very strange problem: Ton''s of ruby process just running simple command "rails --version" or "rails new test1"" I have very strange problem. I try to run this simple command "rails new test1" --> this suppose to be create a new rails site. "rails --version" --> even this I got ton''s of ruby process but I got a lot of ruby

I had a working Rails setup using RVM on Ubuntu 11.10 with /home on a separate partition. I installed Ubuntu 12.04 (Alpha) on the root partition, leaving the home partition unchanged. I now find that some things don''t work, I think due to the fact that the system has been updated and versions of libraries have changed. For example I get: $ rails c

In the example below, what is the dash doing between the class attribute and array: (field_helpers - [:label, :check_box, :radio_button, :fields_for, :hidden_field, :file_field]).each do |selector| -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

i need to use old version of ruby (1.8.7) and older version of rails (2.1.0) so i decided to use rvm. however since i''m somewhat new to ruby and rails i''m having issues. i created a gemset with rvm for my project, installed rails 2.1.0 into it. after that i created a project and a scaffolding for it. however i bumped onto an issue with sqlite3 (or sqlite3-ruby). it seems to me

Hi folks. So I''m using mocha on a ruby project, and I really like it. One thing I''ve noticed is that it can be a bit "surprising" when I''m mocking methods that don''t exist on an object, and I think there''s an easyish fix. At the moment, you use sheep = mock() to create a mock sheep. What I''d like to do is something like sheep =

Hi I am trying to use the RSS classes from "rss/2.0" and everything works but I want to know what attributes and properties I can get at from each of the classes I am getting back. For example, the class has a "channel" which I can tell has a "title" attribute (because it works when I query it :) but I would really like a list of every attribute that is

Hey all, I know that this: Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id means that I have an instance variable that has not been initialized. However, I''m a little confused as to what to do in a signup form for form_for: <% content_for :login do %> <% form_for @user, :url => { :action => "login" } do

append_features(mod) The documentation says: When this module is included in another, Ruby calls append_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to add the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#include. What if this module is

I upgraded a small project that I had created on 3.1.3 to 3.2.0.rc2. Running rspec on it brings about a large amount of these messages: DEPRECATION WARNING: Passing a template handler in the template name is deprecated. You can simply remove the handler name or pass render :handlers => [:haml] instead. (called from block (2 levels) in <top (required)> at

I''m studying the Agile Development with Rails book. In the chapter that first sets up the depot application (page 68), there is this bit of code from a view: <% for product in @products %> <tr> <% for column in Product.content_columns %> <td><%=h product.send(column.name) %></td> <% end %> etc... I am trying to absorb both Ruby and

I am facing strange problem. I have an object @part=MainPart.find(:all) 1. @part.each_with_index do |mainpart,index| 2. <p><%= mainpart.object_id%></p> 3. end Here problem is that object_id is reserved for rails. Here object_id field in my table . Now i want to get value <%= mainpart.object_id%> is giving GARBAGE VALUE. Is there any solution apart from

I''m having a problem converting a date retrieved from my MySQL database and I''m hoping someone can help. MySQL stores the date/time as this: 2005-03-08 17:00:34.0 and according to my Pickaxe book Ruby stores times as "the number of seconds and microseconds since [...] January 1, 1970". All well and good. Unfortunately, RoR is converting my date to this: