README

Sample app for a potential bug in rails 5.0.0.rc1

• Ruby version: 2.3.1

• Database: PostgreSQL

• Setting up:

Install PostgreSQL

Create a new user rails with password rails that has the privilege to create databases.

Install ruby 2.3.1

Run bundle to install all gems

Run rails db:create

Run rails db:migrate

Run rails db:seed .... boom! You'll see it fail as follows:

Now uncomment the line self.table_name = 'users' from app/models/user.rb and db:seed will work fine!

PG::UndefinedTable: ERROR: relation "application_records" does not exist LINE 8: WHERE a.attrelid = '"application_records"'::r... ^ /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/database_statements.rb:88:in async_exec' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/database_statements.rb:88:in block in query' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/abstract_adapter.rb:566:in block in log' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activesupport-5.0.0.rc1/lib/active_support/notifications/instrumenter.rb:21:in instrument' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/abstract_adapter.rb:560:in log' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/database_statements.rb:87:in query' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql_adapter.rb:739:in column_definitions' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:227:in columns' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/schema_cache.rb:56:in columns' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/schema_cache.rb:62:in columns_hash' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/model_schema.rb:354:in load_schema!' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/attributes.rb:233:in load_schema!' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/attribute_decorators.rb:28:in load_schema!' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/model_schema.rb:349:in load_schema' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/model_schema.rb:266:in attribute_types' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/attribute_methods.rb:179:in has_attribute?' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/inheritance.rb:54:in new' /Users/foo/.rvm/gems/ruby-2.3.1@rails5.0/gems/activerecord-5.0.0.rc1/lib/active_record/persistence.rb:50:in create!' /Users/foo/Documents/projects/mirai/code/railsbug/db/seeds.rb:8:in `<top (required)>'