Ошибка парсера yaml в Ruby и rails для database.yml
Среда Rails 3.2.14 Ruby 1.9.3p448 Пакет Ubuntu 12.04 версии 1.3.5
Существует некоторая проблема с тем, как ruby 1.9.3 загружает YAML. Если я высушу код в файле databse.yml, команды rails console, server, generate и т.д. не будут выполнены. Если я удаляю эти значения по умолчанию, то все работает нормально.
Я попробовал парсер психики и парсер syck. Это просто трассировка ошибок отличается в синтаксическом анализаторе, но проблема сохраняется.
Ниже приведен только пример. Фактическая конфигурация отличается. вызывает ошибку, когда database.yml что-то вроде этого:
default: &default
host: localhost
...
development:
<< *default
pool: 5
...
Работает совершенно нормально, когда файл database.yml выглядит примерно так:
development:
host: localhost
pool: 5
Ниже приведена трассировка ошибки:
/home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:246:in `block in visit_Psych_Nodes_Alias': Unknown alias: production (Psych::BadAlias)
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:246:in `fetch'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:246:in `visit_Psych_Nodes_Alias'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:20:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:264:in `block in revive_hash'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:258:in `each'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:258:in `each_slice'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:258:in `revive_hash'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:141:in `visit_Psych_Nodes_Mapping'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/delayed_job-4.0.0/lib/delayed/psych_ext.rb:133:in `visit_Psych_Nodes_Mapping_with_class'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:20:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:273:in `block in revive_hash'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:258:in `each'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:258:in `each_slice'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:258:in `revive_hash'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:141:in `visit_Psych_Nodes_Mapping'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/delayed_job-4.0.0/lib/delayed/psych_ext.rb:133:in `visit_Psych_Nodes_Mapping_with_class'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:20:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:238:in `visit_Psych_Nodes_Document'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/visitors/to_ruby.rb:20:in `accept'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych/nodes/node.rb:35:in `to_ruby'
from /home/naveen/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/psych.rb:128:in `load'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/application/configuration.rb:115:in `database_configuration'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activerecord-3.2.13/lib/active_record/railtie.rb:78:in `block (2 levels) in <class:Railtie>'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:26:in `block in on_load'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:25:in `each'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:25:in `on_load'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activerecord-3.2.13/lib/active_record/railtie.rb:74:in `block in <class:Railtie>'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /home/naveen/workspace/econveyance/EconveyancePro3/config/environment.rb:6:in `<top (required)>'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/application.rb:103:in `require_environment!'
from /home/naveen/.rvm/gems/ruby-1.9.3-p448@EconveyancePro3/gems/railties-3.2.13/lib/rails/commands.rb:40:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
...
Ниже приведен полный файл database.yml. Если я раскомментирую закомментированную часть, появится эта ошибка. где как с ruby 1.8.7 и rails 2.3.x все работало нормально.
development: &development
adapter: mysql2
database: <%= $dev_main_database %>
username: root
password:
timeout: 60000
host: <%= $dev_linux_machine_name %>
encoding: utf8
test:
adapter: mysql2
database: ecpmain_test
username: root
password:
timeout: 60000
host: tecpdb
encoding: utf8
staging: &staging
adapter: mysql2
database: ecpmain_staging
username: sa
password: woofer8
timeout: 60000
host: <%= $staging_database_host %>
encoding: utf8
production: &development
adapter: mysql2
database: <%= $dev_main_database %>
username: root
password:
timeout: 60000
host: <%= $dev_linux_machine_name %>
encoding: utf8
# background_process_development:
# <<: *development
# background_process_staging:
# <<: *staging
# background_process_production:
# <<: *production
doc_finals_development: &doc_finals_development
adapter: mysql2
database: <%= $dev_docs_database %>
username: sa
password: woofer8
timeout: 60000
host: <%= $dev_linux_machine_name %>
encoding: utf8
doc_finals_test:
adapter: mysql2
database: ecpdocs_test
username: sa
password: woofer8
timeout: 60000
host: tecpdb
encoding: utf8
doc_finals_staging: &doc_finals_staging
adapter: mysql2
database: ecpdocs_staging
username: sa
password: woofer8
timeout: 60000
host: <%= $staging_database_host %>
encoding: utf8
doc_finals_production: &doc_finals_production
adapter: mysql2
database: ecpdocs_production
username: sa
password: nash!@w
timeout: 60000
host: pecpdb3
encoding: utf8
# doc_finals_background_process_development:
# <<: *doc_finals_development
# doc_finals_background_process_staging:
# <<: *doc_finals_staging
# doc_finals_background_process_production:
# <<: *doc_finals_production
logging_development: &logging_development
adapter: mysql2
database: <%= $dev_logging_database %>
username: sa
password: woofer8
timeout: 60000
host: <%= $dev_linux_machine_name %>
encoding: utf8
logging_test:
adapter: mysql2
database: ecplogging_test
username: sa
password: woofer8
timeout: 60000
host: tecpdb
encoding: utf8
logging_staging: &logging_staging
adapter: mysql2
database: ecplogging_staging
username: sa
password: woofer8
timeout: 60000
host: <%= $staging_database_host %>
encoding: utf8
logging_production: &logging_production
adapter: mysql2
database: ecplogging_production
username: sa
password: nash!@w
timeout: 60000
host: pecpdb3
encoding: utf8
# logging_background_process_development:
# <<: *logging_development
# logging_background_process_staging:
# <<: *logging_staging
# logging_background_process_production:
# <<: *logging_production
3 ответа
Я не вижу проблем с синтаксисом у вас там. Похоже, что опубликованная вами ошибка указывает на то, что вы по ошибке сделали это где-то:
development:
<< *production
pool: 5
Можете ли вы опубликовать полный database.yml
файл, в котором есть проблема? Отредактируйте его столько, сколько вам нужно, но я думаю, что проблема кроется где-то в данных, которые не были опубликованы.
РЕДАКТИРОВАТЬ
Я был прав, вы пытались заставить производство наследовать от несуществующего блока:
production: &development
...
Я не пытался это проверить, но может случиться так, что YAML-парсер ruby 1.8 больше прощает подобные ошибки.
В любом случае, я продолжил и высушил этот файл для вас и убедился, что он анализируется правильно:
defaults: &defaults
adapter: mysql2
username: root
password:
timeout: 60000
encoding: utf8
development: &development
<<: *defaults
database: <%= $dev_main_database %>
host: <%= $dev_linux_machine_name %>
test:
<<: *defaults
host: tecpdb
database: ecpmain_test
staging: &staging
<<: *defaults
database: ecpmain_staging
username: sa
password: woofer8
host: <%= $staging_database_host %>
production: &production
<<: *defaults
database: <%= $dev_main_database %>
host: <%= $dev_linux_machine_name %>
background_process_development:
<<: *development
background_process_staging:
<<: *staging
background_process_production:
<<: *production
doc_finals_defaults: &doc_finals_defaults
adapter: mysql2
username: sa
password: woofer8
timeout: 60000
encoding: utf8
doc_finals_development: &doc_finals_development
<<: *doc_finals_defaults
database: <%= $dev_docs_database %>
host: <%= $dev_linux_machine_name %>
doc_finals_test:
<<: *doc_finals_defaults
database: ecpdocs_test
host: tecpdb
doc_finals_staging: &doc_finals_staging
<<: *doc_finals_defaults
adapter: mysql2
database: ecpdocs_staging
host: <%= $staging_database_host %>
doc_finals_production: &doc_finals_production
<<: *doc_finals_defaults
database: ecpdocs_production
username: sa
password: nash!@w
host: pecpdb3
doc_finals_background_process_development:
<<: *doc_finals_development
doc_finals_background_process_staging:
<<: *doc_finals_staging
doc_finals_background_process_production:
<<: *doc_finals_production
logging_defaults: &logging_defaults
adapter: mysql2
username: sa
password: woofer8
timeout: 60000
encoding: utf8
logging_development: &logging_development
<<: *logging_defaults
database: <%= $dev_logging_database %>
host: <%= $dev_linux_machine_name %>
logging_test:
<<: *logging_defaults
database: ecplogging_test
host: tecpdb
logging_staging: &logging_staging
<<: *logging_defaults
database: ecplogging_staging
host: <%= $staging_database_host %>
logging_production: &logging_production
<<: *logging_defaults
database: ecplogging_production
username: sa
password: nash!@w
host: pecpdb3
logging_background_process_development:
<<: *logging_development
logging_background_process_staging:
<<: *logging_staging
logging_background_process_production:
<<: *logging_production
Я получал ту же ошибку, но неверный псевдоним был для
development
вместо
production
Я решил проблему, прокомментировав следующие строки в моем
config/webpack.yml
файл
оптимизация:
<<: *развитие