If your .rvmrc file contains custom shell code, continue using .rvmrc as it allows you to include any shell code. If your only aim is to switch Ruby versions, then use .ruby-version which is supported by other Ruby version switchers such as rbenv or chruby. This file also does not require trusting as it is … Read more
<%= f.submit ‘name of button here’, :class => ‘submit_class_name_here’ %> This should do. If you’re getting an error, chances are that you’re not supplying the name. Alternatively, you can style the button without a class: form#form_id_here input[type=submit] Try that, as well.
If you are trying to special case something in a view, you can use current_page? as in: <% if current_page?(:controller => ‘users’, :action => ‘index’) %> …or an action and id… <% if current_page?(:controller => ‘users’, :action => ‘show’, :id => 1) %> …or a named route… <% if current_page?(users_path) %> …and <% if current_page?(user_path(1)) … Read more
The params come from the user’s browser when they request the page. For an HTTP GET request, which is the most common, the params are encoded in the URL. For example, if a user’s browser requested http://www.example.com/?foo=1&boo=octopus then params[:foo] would be “1” and params[:boo] would be “octopus”. In HTTP/HTML, the params are really just a … Read more
In case you can’t upgrade to Ruby on Rails 2.3.11 (and to expand on douglasr’s answer), thread must be required at the top of boot.rb. For example: require ‘thread’ # Don’t change this file! # Configure your app in config/environment.rb and config/environments/*.rb …
In your form are you passing in any other attributes, via mass assignment that don’t belong to your user model, or any of the nested models? If so, I believe the ActiveRecord::UnknownAttributeError is triggered in this instance. Otherwise, I think you can just create your own controller, by generating something like this: # app/controllers/registrations_controller.rb class … Read more
attr_accessor is a Ruby method that makes a getter and a setter. attr_accessible is a Rails method that allows you to pass in values to a mass assignment: new(attrs) or update_attributes(attrs). Here’s a mass assignment: Order.new({ :type => ‘Corn’, :quantity => 6 }) You can imagine that the order might also have a discount code, … Read more
I guess you are using Rails 4. If so, the needed parameters must be marked as required. You might want to do it like this: class UsersController < ApplicationController def create @user = User.new(user_params) # … end private def user_params params.require(:user).permit(:username, :email, :password, :salt, :encrypted_password) end end
I am new to Ruby and got stuck at this same code. The parts that I got hung up on were a little more fundamental than some of the answers I found here. This may or may not help someone. respond_to is a method on the superclass ActionController. it takes a block, which is like … Read more
I’ve been moving from C# in my professional career to looking at Ruby and RoR in my personal life, and I’ve found linux to be slightly more appealing personally for development. Particularly now that I’ve started using git, the implementation is cleaner on linux. Currently I’m dual booting and getting closer to running Ubuntu full … Read more