ruby-on-rails-3.2

In a Rails model I have an attribute is_subscriber , when I constructed a db migration to add this column to the database I specified the default value to be false: t.boolean "is_subscriber", :default => false I also specified in the model that this attribute needs to be present: validates :is_subscriber, presence: true So why do I get this error when I create a model instance without specifying this attribute? 2012-05-08T21:05:54+00:00 app[web.1]: ActiveRecord::RecordInvalid (Validation failed: Is subscriber can't be blank): From here If you want to validate the presence of a boolean field

I have a link that I need to submit a post request with. Normally, I'd use jQuery and prevent the link's default behavior and then submit a form to the destination. This seems like something Rails should be able to help me out with. Sure enough, the link_to method has an option for specifying a POST http method: link_to "Profile", 'http://example.com/profile', method: :post That works, but I need to add 2 parameters too. I tried: link_to "Profile", 'http://example.com/profile', method: post, param1: 'value1', param2: 'value2' That just added those parameters to the <a> HTML element, but didn't

Is there a way in strong parameters to permit all attributes of a nested_attributes model ? Here is a sample code. class Lever < ActiveRecord::Base has_one :lever_benefit accepts_nested_attributes_for :lever_benefit end class LeverBenefit < ActiveRecord::Base # == Schema Information # id :integer not null, primary key # lever_id :integer # explanation :text end For lever strong parameters i am writing currently this def lever params.require(:lever).permit(:name,:lever_benefit_attributes => [:lever_id, :explanation]) end Is there a way for nested attributes i can write to permit all attributes

I have a download link in my app from which users should be able to download files which are stored on s3. These files will be publicly accessible on urls which look something like https://s3.amazonaws.com/:bucket_name/:path/:to/:file.png The download link hits an action in my controller: class AttachmentsController < ApplicationController def show @attachment = Attachment.find(params[:id]) send_file(@attachment.file.url, disposition: 'attachment') end end But I get the following error when I try to download a file: ActionController::MissingFile in AttachmentsController#show Cannot read file

I need some informations for the best practices in Ruby on Rails, especially with Controller who have to do a lot of things , so, a simple "show" action is now up to lines. I know, it's not really good, and I have specific code in it. Here is a sample code: def show sound = Sound.find(params[:id]) @xml_path = File.dirname(sound.file.path) s3 = AWS::S3.new( :access_key_id => 'XXX', :secret_access_key => 'XXX') @url = s3.buckets['dev'].objects[sound.file.path[1..-1]].url_for(:read, :expires => 10*60) if sound.id_job != 0 && sound.transcript_progress != 100 @response = Savon.client("http://srap

I have three roles: Instuctor, Student, Admin and each have controllers with a "home" view. so this works fine, get "instructor/home", :to => "instructor#home" get "student/home", :to => "student#home" get "admin/home", :to => "admin#home" I want to write a vanity url like below which will route based on the role of the user_id to the correct home page. get "/:user_id/home", :to => "instructor#home" or "student#home" or "admin#home" How do I accomplish this? tadman You can't do this with routes because the routing system does not have the information required to make this decision. All Rails