ruby-on-rails - proyecto - rails postgres api

rake db: crear tiros error "la base de datos no existe" con postgresql

Question

Estoy usando rails 4.1.5 con postgresql 9.1 en Debian 7, y no puedo crear una base de datos en mi entorno de desarrollo. Cuando corro

bin/rake db:create

yo obtengo

home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:898:in `rescue in connect'': FATAL:  database "direct-dev" does not exist
Run `$ bin/rake db:create db:migrate` to create your database (ActiveRecord::NoDatabaseError)
from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:888:in `connect''
from ...

Estoy tratando de crear la base de datos para que, naturalmente, no exista. Sin embargo, los rieles deberían crearlo ... Aquí está mi config / database.yml:

default: &default
  adapter: postgresql
  encoding: unicode
  pool: 5

development:
  <<: *default
  database: direct-dev

Y aquí hay una parte del registro postgresql:

2014-09-01 19:30:40 CEST LOG:  connection received: host=[local]
2014-09-01 19:30:40 CEST LOG:  connection authorized: user=rs database=direct-dev
2014-09-01 19:30:40 CEST FATAL:  database "direct-dev" does not exist

¿Tienes algún puntero? He estado en esto por más de una hora, y todavía no puedo entender por qué sucede esto ...

¡Gracias!

Answer 1

Encontré el problema ...

Tiene que ver con los inicializadores de Rails: Rails parece cargar todos los inicializadores antes de ejecutar bin/rake db:create .

Y, en esta aplicación en particular, hay algunos inicializadores personalizados que dependen de un modelo ActiveRecord (que, a su vez, depende de la base de datos que se está creando, disponible y con la tabla correspondiente).

Por lo tanto, rake nunca llega a ejecutar realmente la tarea, falla al ejecutar los inicializadores. Debería haber sabido si había leído cuidadosamente el registro completo de mensajes de error. Este es el registro completo (ver abajo, en negrita, las líneas ofensivas):

/home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:898:in `rescue in connect'': FATAL: database "ds-dev" does not exist Run `$ bin/rake db:create db:migrate` to create your database (ActiveRecord::NoDatabaseError) from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:888:in `connect'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:568:in `initialize'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:41:in `new'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/postgresql_adapter.rb:41:in `postgresql_connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:435:in `new_connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:445:in `checkout_new_connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:416:in `acquire_connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:351:in `block in checkout'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:350:in `checkout'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in `block in connection'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:264:in `connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:541:in `retrieve_connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_handling.rb:113:in `retrieve_connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/connection_handling.rb:87:in `connection'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.5/lib/active_record/model_schema.rb:209:in `table_exists?'' from /home/rs/pr/ds/app/models/property.rb:32:in `get'' from /home/rs/pr/ds/config/initializers/custom/setup_mail.rb:3:in `'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:241:in `load'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:241:in `block in load'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:241:in `load'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/engine.rb:648:in `block in load_config_initializer'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/notifications.rb:161:in `instrument'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/engine.rb:647:in `load_config_initializer'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/engine.rb:612:in `block (2 levels) in '' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/engine.rb:611:in `each'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/engine.rb:611:in `block in '' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/initializable.rb:30:in `instance_exec'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/initializable.rb:30:in `run'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/initializable.rb:55:in `block in run_initializers'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:418:in `block (2 levels) in each_strongly_connected_component_from'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:417:in `block in each_strongly_connected_component_from'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/initializable.rb:44:in `each'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/initializable.rb:44:in `tsort_each_child'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:411:in `call'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:411:in `each_strongly_connected_component_from'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `call'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/initializable.rb:54:in `run_initializers'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/application.rb:300:in `initialize!'' from /home/rs/pr/ds/config/environment.rb:5:in `'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/application.rb:92:in `preload'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/application.rb:140:in `serve'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/application.rb:128:in `block in run'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/application.rb:122:in `loop'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/application.rb:122:in `run'' from /home/rs/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/application/boot.rb:18:in `'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'' from /home/rs/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'' from -e:1:in `''

Trabajaré en refactorizar el código, para deshacerme de las dependencias del modelo en los inicializadores (que estoy bastante seguro de que debe ser una muy mala práctica).

Answer 2

Ninguna de las soluciones funcionó para mí, pero esto funcionó para mí.

$ brew services list
$ brew services restart postgresql

Answer 3

Ninguna de las soluciones funcionó para mí, pero luego vi que algunas respuestas mencionaban la precarga como parte del problema. Me di cuenta de que tenía config.eager_load = true en config/environments/development.rb . Lo cambié a falso y resolvió el problema.

Answer 4

Puede intentar ejecutar este comando

bin/rake db:create RAILS_ENV=development

O este comando

bin/rake db:migrate RAILS_ENV=development

Answer 5

Rails 4.1 se envía con preloader de resorte , y

Las nuevas aplicaciones de Rails 4.1 se enviarán con contenedores de basura "springified". Esto significa que el contenedor / rieles y el contenedor / rastrillo aprovecharán automáticamente los entornos de resortes precargados.

lo que significa que el bin/rake "springified" intentará precargar la aplicación, que a su vez intentará ejecutar los inicializadores, lo que provocará el problema que está viendo.

Para solucionar / solucionar esto, desea ejecutar las tareas iniciales de configuración del rastrillo sin resorte. Una forma de lograr eso es ejecutarlo con bundler en su lugar:

bundle exec rake db:create

Answer 6

Tuve el mismo problema hoy (en OS X).

Resuelto con:

psql -U postgres
CREATE ROLE rolename WITH CREATEDB LOGIN;

Use /du para verificar si está creado.

Use /password rolename para crear una contraseña para ese usuario / rol .

Entonces puede configurar DB con el bundle exec rake db:migrate

Answer 7

Veo dos problemas, ya que is04 señaló que probablemente necesite al menos un valor de username en su base de datos.yml.

También necesita crear el rol de postgres:

su - postgres
create role direct-dev with createdb login password ''password1''