From the documentation, it seems like the :inverse_of option is a method for avoiding SQL queries, not generating them. It’s a hint to ActiveRecord to use already loaded data instead of fetching it again through a relationship. Their example: class Dungeon < ActiveRecord::Base has_many :traps, :inverse_of => :dungeon has_one :evil_wizard, :inverse_of => :dungeon end class … Read more
Option 1: syslog + logrotate You can configure rails, to use the systems log tools. An example in config/environments/production.rb. # Use a different logger for distributed setups config.logger = SyslogLogger.new That way, you log to syslog, and can use default logrotate tools to rotate the logs. Option 2: normal Rails logs + logrotate Another option … Read more
You will need to have root access to do this. If you aren’t already the administrative user, login as the administrator. Then use ‘sudo’ to change the permissions: sudo chmod go-w /usr/local/bin Obviously, that will mean you can no longer install material in /usr/local/bin except via ‘sudo’, but you probably shouldn’t be doing that anyway.
Rails 5.2+ You can use the same skip_before_action method listed below or a new method skip_forgery_protection which is a thin wrapper for skip_before_action :verify_authenticity_token skip_forgery_protection Rails 4+: # entire controller skip_before_action :verify_authenticity_token # all actions except for :create, :update, :destroy skip_before_action :verify_authenticity_token, except: [:create, :destroy] # only specified actions – :create, :update, :destroy skip_before_action :verify_authenticity_token, … Read more
Try rails g controller admin/users if you want a users controller inside of the admin namespace. Of course, exchange users with whatever controller name that you’d like.
This is the Rails 3 way SomeModel.last(5) # last 5 records in ascending order SomeModel.last(5).reverse # last 5 records in descending order
You need to add this to your environment.rb config.action_mailer.default_url_options = { :host => ‘localhost’ } Make sure you change host to your production url and keep it localhost for development. This is for the mailer, it needs a default email to send out notices such as confirmations etc… You should check the logs on the … Read more
They essentially do the same thing, the only difference is what side of the relationship you are on. If a User has a Profile, then in the User class you’d have has_one :profile and in the Profile class you’d have belongs_to :user. To determine who “has” the other object, look at where the foreign key … Read more
rake db:migrate:status (Rails 3 to 5) or rails db:migrate:status (Rails 5) will accomplish this. See this commit. up means the migration has been run. down means the migration has not been run.
Migrations provide forward and backward step changes to the database. In a production environment, incremental changes must be made to the database during deploys: migrations provide this functionality with a rollback failsafe. If you run rake db:schema:load on a production server, you’ll end up deleting all your production data. This is a dangerous habit to … Read more