MVC Controller: Put code here that has to do with working out what a user wants, and deciding what to give them, working out whether they are logged in, whether they should see certain data, etc. In the end, the controller looks at requests and works out what data (Models) to show and what Views … Read more
The target: :_blank parameter should be a parameter of link_to, whereas you put it in image_tag parameters. Modify your code like this: <%= link_to image_tag(“facebook.png”, class: :facebook_icon, alt: “Facebook”), “http://www.facebook.com/mypage”, target: :_blank %> Or with a block: <%= link_to “http://www.facebook.com/mypage”, target: :_blank do %> <%= image_tag(“facebook.png”, class: :facebook_icon, alt: “Facebook”) %> <% end %>
collection_select( :post, # field namespace :author_id, # field name # result of these two params will be: <select name=”post[author_id]”>… # then you should specify some collection or array of rows. # It can be Author.where(..).order(..) or something like that. # In your example it is: Author.all, # then you should specify methods for generating options … Read more
I finally figured this out – http://blog.serendeputy.com/posts/how-to-prevent-browsers-from-caching-a-page-in-rails/ in application_controller.rb. After Ruby on Rails 5: class ApplicationController < ActionController::Base before_action :set_cache_headers private def set_cache_headers response.headers[“Cache-Control”] = “no-cache, no-store” response.headers[“Pragma”] = “no-cache” response.headers[“Expires”] = “Mon, 01 Jan 1990 00:00:00 GMT” end end Ruby on Rails 4 and older versions: class ApplicationController < ActionController::Base before_filter :set_cache_headers private def … Read more
My problem was that I did: sudo gem install bundler So I had installed as root rather than as myself. So I uninstalled as root, then installed as myself: sudo gem uninstall bundler gem install bundler rbenv rehash (last command for if you are using rbenv) And it worked. The “correct” path was in .bashrc … Read more
Passing the :value option to f.label will ensure the label tag’s for attribute is the same as the id of the corresponding radio_button <%= form_for(@message) do |f| %> <%= f.radio_button :contactmethod, ’email’ %> <%= f.label :contactmethod, ‘Email’, :value => ’email’ %> <%= f.radio_button :contactmethod, ‘sms’ %> <%= f.label :contactmethod, ‘SMS’, :value => ‘sms’ %> <% … Read more
In 3.1 you just get rid of the ‘images’ part of the path. So an image that lives in /assets/images/example.png will actually be accessible in a get request at this url – /assets/example.png Because the assets/images folder gets generated along with a new 3.1 app, this is the convention that they probably want you to … Read more
Take a look at Concerns Create a folder in your models directory called concerns. Add a module there: module MyConcernModule extend ActiveSupport::Concern included do after_save :do_something end def do_something … end end Next, include that in the models you wish to run the after_save in: class MyModel < ActiveRecord::Base include MyConcernModule end Depending on what … Read more
Tenant is sort of a red herring – the error would occur if you referenced any bit of app that needs to be loaded by rails’ const_missing trick. The problem is that you are taking something reloadable (your module) and then including it in something not reloadable (ActiveRecord::Base or, in your earlier example ActionMailer::Base). At … Read more
Rails 3+ Enter this line in the console: ActiveRecord::Base.logger = Logger.new(STDOUT) Rails 2 Enter this line in the console: ActiveRecord::Base.connection.instance_variable_set :@logger, Logger.new(STDOUT)