When building native Ruby gems, sometimes you’ll get an error containing “ruby extconf.rb”. This is often caused by missing development libraries for the gem you’re installing, or even Ruby itself. Do you have apt installed on your machine? If not, I’d recommend installing it, because it’s a quick and easy way to get a lot … Read more
At Boundless, we’ve gone deep with option #2 and rolled it out to thousands of students. Our server is a JSON REST API (Scala + MongoDB), and all of our client code is served straight out of CloudFront (ie: www.boundless.com is just an alias for CloudFront). Pros: Cutting-edge/exciting A lot of bang for your buck: … Read more
To drop the database, if you are using SHARED_DATABASE_URL: $ heroku pg:reset DATABASE_URL Now to recreate the database with nothing in it: $ heroku run rake db:migrate To populate the database with your seed data: $ heroku run rake db:seed —OR— You can combine the last two (migrate & seed) into one action by executing … Read more
If you have already run your original migration (before editing it), then you need to generate a new migration (rails generate migration add_email_to_users email:string will do the trick). It will create a migration file containing line: add_column :users, email, string Then do a rake db:migrate and it’ll run the new migration, creating the new column. … Read more