ruby-on-rails-3

问题 I have been trying to get DelayedJob to run some user defined methods in the background. For this test case I defined the following method in a helper: def test_case u = User.new u.first_name = "JimBob" u.last_name = "joe" u.email = "itworked@eureka.com" u.password = "sailsJ123" u.password_confirmation = "sailsJ123" u.save end Then, in a controller action, I define: def action_name #whatever it does outside of this test_case end This causes test_case to create a new user when the action here

问题 Is there a way to split an a form (using form_for) across two partials? I want to have text boxes in one partial, and my submit button in another. 回答1: You can do that as follows: # _post_form.html.erb <%= form_for(@post) do |f| %> <% @form = f%> <%= render 'form_fields'%> <%= render 'form_actions'%> <% end %> # _form_fields.html.erb <div class="field"> <%= @form.label :name %><br /> <%= @form.text_field :name %> </div> <div class="field"> <%= @form.label :title %><br /> <%= @form.text_field

问题 I'm in Section 11.3.1 of the Rails Tutorial, and all tests were passing prior to this. Afterward, the home page (which has the micropost feed) breaks with this error: PG::Error: ERROR: invalid input syntax for integer: "98, 1" LINE 1: ...CT COUNT(*) FROM "microposts" WHERE (user_id IN ('98, 1') O... ^ : SELECT COUNT(*) FROM "microposts" WHERE (user_id IN ('98, 1') OR user_id = 101) And several of the tests fail with a similar issue. Here's the first one: 1) Authentication authorization as

问题 I am accessing a database that I can't change and it has a column named attribute defined. Anytime I try to access an attribute , I get this exception: attribute? is defined by ActiveRecord(ActiveRecord::DangerousAttributeError) my code: class User < ActiveRecord::Base def self.authenticate(username,password) where(:username => username, :value => password).first end end I found a plan on the ruby on rails mailing list for fix the problem but not work for me class << self def instance_method

问题 I have been having a problem with using Bundler and being able to access my gems without having to require them somewhere, as config.gem used to do that for me (as far as I know). In my Rails 3 app, I defined my Gemfile like so: clear_sources source "http://gemcutter.org" source "http://gems.github.com" bundle_path "vendor/bundler_gems" ## Bundle edge rails: git "git://github.com/rails/arel.git" git "git://github.com/rails/rack.git" gem "rails", :git => "git://github.com/rails/rails.git" ##

问题 I have been having a problem with using Bundler and being able to access my gems without having to require them somewhere, as config.gem used to do that for me (as far as I know). In my Rails 3 app, I defined my Gemfile like so: clear_sources source "http://gemcutter.org" source "http://gems.github.com" bundle_path "vendor/bundler_gems" ## Bundle edge rails: git "git://github.com/rails/arel.git" git "git://github.com/rails/rack.git" gem "rails", :git => "git://github.com/rails/rails.git" ##

问题 I am currently using Rails 3.2.5 with the latest devise gem. Currently users can access their profile page at... example.com/users/john-doe I want to remove the users portion of the url, so the url would be example.com/john-doe . Is this possible with devise? Right now in my routes file I have the following... devise_for :users, :controllers => {:omniauth_callbacks => 'omniauth_callbacks'} 回答1: Just add a route for it. You will probably want it to be the last one in the routes file. Something

问题 I have my own domain name hosted on Google Apps. My email sending works in development mode on my laptop. In production on Heroku (cedar stack) I get this error: Net::SMTPAuthenticationError (535-5.7.8 Username and Password not accepted. Learn more at app/controllers/applicants_controller.rb:16:in `create'): Here is my production.rb file: config.action_mailer.default_url_options = { :host => 'mydomain.com' } # ActionMailer Config # Setup for production - deliveries, no errors raised config

问题 I have my own domain name hosted on Google Apps. My email sending works in development mode on my laptop. In production on Heroku (cedar stack) I get this error: Net::SMTPAuthenticationError (535-5.7.8 Username and Password not accepted. Learn more at app/controllers/applicants_controller.rb:16:in `create'): Here is my production.rb file: config.action_mailer.default_url_options = { :host => 'mydomain.com' } # ActionMailer Config # Setup for production - deliveries, no errors raised config

问题 Rails ask me to succeed with gem install mysql2 and on trying I got the following error.So what is mostly problem with such error? Detail of error is below: Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt