ActiveRecord::ConnectionNotEstablished - No connection pool for X

ActiveRecord::ConnectionNotEstablished - No connection pool for X

ruby-on-rails postgresql sinatra rails-activerecord puma

postgresql

Generating an Instagram- or Youtube-like unguessable string ID in ruby/ActiveRecord

ruby postgresql activerecord sinatra

postgresql

Empty, uneditable pg_hba.conf file

postgresql authentication sinatra

postgresql

Deploy a simple test app with Sinatra + DataMapper + Postgres + Heroku returns: Installing do_sqlite3 (0.10.7) error

postgresql sqlite heroku sinatra datamapper

postgresql

Datamapper TEXT limited to 65k characters by default — how to raise the limit?

ruby postgresql heroku sinatra datamapper

postgresql

Sinatra/ActiveRecord can't handle simultaneous requests?

ruby postgresql activerecord sinatra

postgresql