rails bootstrap-sass assets compilation error - undefined variable alert-padding
all roads point to bootstrap-sass Referral chain: railscast-328 (twitter bootstrap basics) refers to http://www.sitepoint.com/twitter-bootstrap-less-and-sass-understanding-your-options-for-rails-3-1/ which refers to https://github.com/jlong/sass-bootstrap which in turn exclaims there is a new official port of bootstrap to sass at https://github.com/twbs/bootstrap-sass which is another one of the o
rails 3.2 migration cannot add index to create_table in change method
here is my migration in rails 3.2.2: class CreateStatistics < ActiveRecord::Migration def change create_table :statistics do |t| t.string :name t.integer :item_id t.integer :value t.text :desc t.timestamps t.index [:name, :item_id] end end end and here is the migrate error: == CreateStatistics: migrating =============================================== -- create_table(:statistics) ActiveRecord::Con
Ruby on Rails: errors.add_to_base vs. errors.add
I have read that errors.add_to_base should be used for errors associated with the object and not a specific attribute. I am having trouble conceptualizing what this means. Could someone provide an example of when I would want to use each? For example, I have a Band model and each Band has a Genre. When I validate the presence of a genre, if the genre is missing should the error be added to the bas
Why use Ruby's attr_accessor, attr_reader and attr_writer?
Ruby has this handy and convenient way to share instance variables by using keys like attr_accessor :var attr_reader :var attr_writer :var Why would I choose attr_reader or attr_writer if I could simply use attr_accessor? Is there something like performance (which I doubt)? I guess there is a reason, otherwise they wouldn't have made such keys.
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