I didn’t think that this question applied to my situation, but it does: Stubbing Warden on Controller Tests As it turns out, Warden does not get included into RSpec controller specs, so you need to do some magic to finagle it in. Kentaro Imai‘s Controller test helpers for Warden blog post was particularly helpful. Here’s … Read more
Simply because they are not thread safe. Many rails=capable servers are multi-threaded. That means there may be multiple running instances of your application at any given time and any request by one of your users is going to be arbitrarily assigned to one of them. Class variables are not shared between processes so there is … Read more
:default_url => ActionController::Base.helpers.asset_path(‘missing_:style.png’) Then put the default images in app/assets/images/
If you want all your links to be able to switch between http and https, you have to stop using the _path helper and switch to _url helpers. After that, using a scope with the protocol parameter forced and protocol constraint makes the urls automatically switch. routes.rb scope :protocol => ‘https://’, :constraints => { :protocol … Read more
Apparently ubuntu and ruby don’t always catch dependencies like they should. From the first google hit (yeah, I clicked on this stack-overflow in place #2 before checking out the first result.) Navigate to the Ruby source and enter: sudo apt-get install libreadline5-dev cd ext/readline ruby extconf.rb make sudo make install So, if you’re on another … Read more
At a high level, the intent of resource is to declare that only one of these resources will ever exist. For example: resource :profile, :only => [:edit, :update] As a user, I should only be able to update my own profile. I should never be able to edit other users’ profiles, so there’s no need … Read more
I’m no expert at SQL, but why not just sort by if something is null first then sort by how you wanted to sort it. Photo.order(‘collection_id IS NULL, collection_id DESC’) # Null’s last Photo.order(‘collection_id IS NOT NULL, collection_id DESC’) # Null’s first If you are only using PostgreSQL, you can also do this Photo.order(‘collection_id DESC … Read more
run postgres -D /usr/local/var/postgres and you should see something like: FATAL: lock file “postmaster.pid” already exists HINT: Is another postmaster (PID 379) running in data directory “/usr/local/var/postgres”? Then run kill -9 PID in HINT And you should be good to go.
For Rails 5+ Initial Definition: If you are defining your Post model table, you can set references, index and foreign_key in one line: t.references :author, index: true, foreign_key: { to_table: :users } Update Existing: If you are adding references to an existing table, you can do this: add_reference :posts, :author, foreign_key: { to_table: :users } … Read more
If you have already tried restarting your server as Ryan suggested, try putting it in your application.rb like this: module MyAppName class Application < Rails::Application YOUR_GLOBAL_VAR = “test” end end Then you can call it with the namespace in your controllers, views or wherever.. MyAppName::Application::YOUR_GLOBAL_VAR Another alternative would be using something like settingslogic. With settingslogic, … Read more