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Hey all, I created a seed task: def books! books = Book.where(:type_id => Type.find_by_name(''Fiction'')).order(''id'') books.each do |book| @books = 4.times.map do |i| subbook! "#{book.book_num}-#{i}".to_s, :book_state => BookState[:available].id, :book => book end end puts "log it:

In console, I run the following and any? returns true: drivers = Driver.select("drivers.*, drivers.id").joins([:reports, :driving_habits]).where("extract(MONTH FROM reports.time) = ? AND extract(YEAR FROM reports.time) = ?", 3, 2013).uniq.order("drivers.id asc").page(2).per(1) drivers.any? => true This correctly evaluates to true because the relation contains one

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

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

Hey all, I get an undefined method `join'' for #<String NoMethodError. student.rb has_one :student_fail attr_accessor :student_fail_attribute #controller def student_fail @student = @student.find params[:id] def update_student_fail @student.build_student_fail params[:student][:student_fail_attribute] if @student.save #view form_for @student do |f|

I''m looking at the documentation: http://ruby-doc.org/stdlib-2.0/libdoc/net/http/rdoc/Net/HTTP.html And I notice two uses of Net::HTTP. Both are using GET requests. But what''s the difference? When to use which? Net::HTTP.start(uri.host, uri.port) do |http| request = Net::HTTP::Get.new uri response = http.request request # Net::HTTPResponse object end uri =

when you add a gem to the Gemfile and then run bundle install, where does the command look for the gem? If you had "gem ''rails'', :git => ''github.com/rails/rails.git", I assume it would update your system .rvm gems directory with the latest github commits. But what is the default repository that bundler looks for gems? -- You received this message because

The % is modulus (remainder) operator and ^ is bitwise. In this context, we take a file, and go through each character and encrypt it. But why are the ^ and % operators used here: def encrypt(reader, writer) key_index = 0 while not reader.eof? clear_char = reader.getc encrypted_char = clear_char ^ @key[key_index] writer.putc(encrypted_char) key_index = (key_index +

"Object is the root of Ruby''s class hierarchy. Its methods are available to all classes unless explicitly overridden." Wouldn''t Class class be at the root of the class hierarchy? After all, look at this: 1.9.2p290 :006 > Object.instance_of? Class => true Object is an instance of class, after all we can use one of Class'' instance methods on Object:

I''m careful to create separate gemsets for each project, so when I run bundle install, it only installs gems for that gemset. This way gems dont creep into the wrong projects. Now I just pulled a project from github. I made sure I was in the correct gemset, and then I run bundle install and it works fine. but then when I use rake to create the database "rake db:create". I get

>> 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

Hey all, A lot of people use factory girl to simulate behavior without affecting database, particularly for testing. I have a situation where this is not for testing but rather someone clicks on button to simulate behavior but we create a User object in order to run the simulation but while I want the results of simulation to be stored in a simulation table I dont want the user to be actually

I know that there is an ActiveModel Validator class https://github.com/rails/rails/blob/master/activemodel/lib/active_model/validator.rb which is used for the class level validation macros. But I didn''t find a an ActiveRecord Validator class. From my understanding in Rails 3, validations have been moved into ActiveModel to leave ActiveRecord as an ORM. So now I see this Rails 3 code

In ActionDispatch::PolymorphicRoutes, there is a call to build_named_route_call an on line 172 (of latest rails code from github), there is a call to singular_route_key: model_name_from_record_or_class(parent).singular_route_key Now model_name_from_record_or_class returns an ActiveModel::Name object, which is a wrapper to the string class, that returns a string name of the class of an

In polymorphic_routes.rb, line 131, a name route that has been built (e.g. post_users_path) gets invoked on self (assuming there was not RoutesProxy instance appended as the first element of the array passed as the first argument to form_for, then send() would be invoked on self, which is PolymorphicRoutes module, which belongs to ActionDispatch::Routing): (proxy || self).send(named_route, *args)

On here: http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#method-i-check_box-label-Gotcha you see this code: <%= fields_for "project[invoice_attributes][]", invoice, :index => nil do |form| %> <%= form.check_box :paid %> ... <% end %> why are they using :index => nil in the example? I mean I know that what it does is ensure that the

What module of ActionView are the <% %> and <%= %> defined in? -- 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 rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to

I just want to make a note of something I read here: http://en.wikibooks.org/wiki/Ruby_Programming/Syntax/Classes#Protected def <=>(other) self.age <=> other.age end It says: "If age is private, this method will not work, because other.age is not accessible. If "age" is protected, this will work fine, because self and other are of same class, and can access

For this one particular project, rails is not to logging controller, action, parameters, complection time, etc in development mode. And I am not sure why. When I check in the console the log level I notice: Rails.logger.level => 0 So I am not sure why it doesn''t log the information it usually does during a request. -- You received this message because you are subscribed to

I have another application publishing messages to redis server. Within my rails application, when a user clicks a button, I want a popup to display that shows live updates. I want the controller to publish notifications to redis, and I want my javascript to subscribe to those events and respond when it finds a suitable channel. What I do not know how to do is actually keep a control open like