ruby-on-rails-3.1

问题 I am taking a rails class at my University and I am trying to create a search form which will show the results on the same page rather than show a different page of results. Is this something simple to do? I am creating a museum app with artifacts for each museum but I want the user to search artifacts from either page. On my routes.rb I have resources :artifacts do collection do get 'search' end end On my museum index I have the code below that he gave us but not sure how to tweak the get

问题 This is an app that I am upgrading to Rails 3.1, along with the asset pipeline. Everything looks peachy in development, but when I push to heroku, the images in my css are not displaying. Couple of questions. First, should I leave these files with the css extention, or should they be renamed to either scss, or css.scss.erb? The other question I have is how should I reference images in the css. Currently I have... background: #B4F4FF url(/assets/img01.jpg) repeat-x left top;^M I am pretty sure

问题 I have a role table with user name and role and company. I want to insert data into that table through a new migration file so how can i do this? I got a code like this but how can i use it and where i am not able to understand. class Foo < ActiveRecord::Migration def self.up Users.new(:username => "Hello", :role => "Admin") end def self.down Users.delete_all(:username => "Hello") end end 回答1: This: Users.new(:username => "Hello", :role => "Admin") does not insert data into your table. It

问题 I have two user models, first is from remote database as legacy and for internal company purposes. (Employee logins). Second is our project for public registration and sign in but I want one login form. I have searching long time, but some solutions are confusing for me. First legacy looks like (only for reading and authentication): class CrmUser < ActiveRecord::Base require Rails.root.join('lib', 'devise', 'encryptors', 'sha1') # Include default devise modules. Others available are: # :token

问题 For the most part I've followed the direction laid out here Which is resulted in the following error coming from the initializer it asked me to create: from /app/config/initializers/sass.rb:1:in `<top (required)>' 2011-09-05T16:45:42+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/railties- 3.1.0/lib/rails/railtie/configuration.rb:78:in `method_missing': undefined method `sass' for # <Rails::Application::Configuration:0x00000003845528> (NoMethodError) The Heroku page on getting started

问题 My controller accesses the tempfile attribute of an uploaded file and passes it to another mocked component. My test code has @file = mock(Object) @file.stub_chain(:tempfile, :path).and_return('thefile.zip') # ... post :create, :file => @file and the controller code calls params[:file].tempfile.path . After upgrading from Rails 3.0 to 3.1, the above line started failing with undefined method `tempfile' for "#[RSpec::Mocks::Mock:0x2b0d9a0 @name=Object]":String That is, Rails 3.1 converted

问题 These are the instructions to add a module to an existing Devise install: https://github.com/plataformatec/devise/wiki/How-To:-change-an-already-existing-table-to-add-devise-required-columns But I can't seem to locate the necessary columns for timeoutable . I looked for the fields that timeoutable requires in the Devise library: https://github.com/plataformatec/devise/blob/master/lib/devise/schema.rb - but there is no such method in that schema file. The model just has a custom method with no

问题 I have set the time zone in /config/application.rb , and I expect all times generated in my app to be in this time zone by default, yet when I create a new DateTime object (using .new ), it creates it in GMT . How can I get it to be in my app's time zone? /config/application.rb config.time_zone = 'Pacific Time (US & Canada)' irb irb> DateTime.now => Wed, 11 Jul 2012 19:04:56 -0700 irb> mydate = DateTime.new(2012, 07, 11, 20, 10, 0) => Wed, 11 Jul 2012 20:10:00 +0000 # GMT, but I want PDT

问题 I've a current_user method to handle authentication. application_controller.rb protect_from_forgery helper_method :current_user def current_user @current_user ||= User.find(session[:user_id]) if session[:user_id] end but when I try to acces a to a page I get the following error: Couldn't find User with id=1 app/controllers/application_controller.rb:10:in `current_user' How can I pass @current_user a sort of default value so if there's no user it will redirect to login page. Thanks for helping

问题 How can I make a has_many through work with multiple database connections? I have a database named "master" that holds the location information. That is updated from a separate application. Users can have access to many locations, but all the other models are located in another database named "budget". Here are how the models are setup. # place.rb class Place < ActiveRecord::Base belongs_to :user belongs_to :location end # user.rb class User < ActiveRecord::Base has_many :locations, :through