我正试图让一个应用程序在运行在vagrant上的Linux 10.04上工作。
我安装了所有相关的gem包，安装了PostgreSQL 9.1.9，但当我尝试运行rake db:migrate时出现了问题。
rake aborted!
PG::Error: ERROR: relation "messages" does not exist
LINE 5: WHERE a.attrelid = '"messages"'::regclass
^
: SELECT a.attname, format_type(a.atttypid, a.atttypmod),
pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
FROM pg_attribute a LEFT JOIN pg_attrdef d
ON a.attrelid = d.adrelid AND a.attnum = d.adnum
WHERE a.attrelid = '"messages"'::regclass
AND a.attnum > 0 AND NOT a.attisdropped
ORDER BY a.attnum
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1161:in `exec'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1161:in `exec_no_cache'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:660:in `block in exec_query'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `block in log'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract_adapter.rb:275:in `log'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/rack-mini-profiler-0.1.26/Ruby/lib/patches/sql_patches.rb:246:in `log_with_miniprofiler'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/newrelic_rpm-3.6.0.83/lib/new_relic/agent/instrumentation/active_record.rb:36:in `block in log_with_newrelic_instrumentation'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/newrelic_rpm-3.6.0.83/lib/new_relic/agent/method_tracer.rb:235:in `trace_execution_scoped'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/newrelic_rpm-3.6.0.83/lib/new_relic/agent/instrumentation/active_record.rb:33:in `log_with_newrelic_instrumentation'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:659:in `exec_query'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:1286:in `column_definitions'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/postgresql_adapter.rb:855:in `columns'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/connection_adapters/schema_cache.rb:12:in `block in initialize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/model_schema.rb:228:in `yield'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/model_schema.rb:228:in `default'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/model_schema.rb:228:in `columns'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/model_schema.rb:237:in `columns_hash'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/inheritance.rb:19:in `descends_from_active_record?'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/inheritance.rb:25:in `finder_needs_type_condition?'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/base.rb:455:in `relation'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/scoping/named.rb:37:in `scoped'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activerecord-3.2.13/lib/active_record/querying.rb:9:in `where'
/home/vagrant/myapp/app/models/message.rb:29:in `<class:Message>'
/home/vagrant/myapp/app/models/message.rb:25:in `<top (required)>'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:469:in `load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:469:in `block in load_file'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:639:in `new_constants_in'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:468:in `load_file'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:353:in `require_or_load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:502:in `load_missing_constant'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:192:in `block in const_missing'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:190:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:190:in `const_missing'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:230:in `block in constantize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:229:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:229:in `constantize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/core_ext/string/inflections.rb:54:in `constantize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/acts-as-messageable-0.4.8/lib/acts-as-messageable/model.rb:34:in `acts_as_messageable'
/home/vagrant/myapp/app/models/user.rb:123:in `<class:User>'
/home/vagrant/myapp/app/models/user.rb:45:in `<top (required)>'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:469:in `load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:469:in `block in load_file'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:639:in `new_constants_in'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:468:in `load_file'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:353:in `require_or_load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:502:in `load_missing_constant'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:192:in `block in const_missing'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:190:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:190:in `const_missing'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:230:in `block in constantize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:229:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/inflector/methods.rb:229:in `constantize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:554:in `get'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:588:in `constantize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise.rb:272:in `get'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/mapping.rb:77:in `to'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/mapping.rb:72:in `modules'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/mapping.rb:89:in `routes'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/mapping.rb:156:in `default_used_route'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/mapping.rb:66:in `initialize'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise.rb:306:in `new'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise.rb:306:in `add_mapping'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/rails/routes.rb:208:in `block in devise_for'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/rails/routes.rb:207:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/devise-2.2.4/lib/devise/rails/routes.rb:207:in `devise_for'
/home/vagrant/myapp/config/routes.rb:27:in `block in <top (required)>'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/actionpack-3.2.13/lib/action_dispatch/routing/route_set.rb:289:in `instance_exec'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/actionpack-3.2.13/lib/action_dispatch/routing/route_set.rb:289:in `eval_block'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/actionpack-3.2.13/lib/action_dispatch/routing/route_set.rb:267:in `draw'
/home/vagrant/myapp/config/routes.rb:1:in `<top (required)>'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:245:in `load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:245:in `block in load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:245:in `load'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:40:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:40:in `load_paths'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:16:in `reload!'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:26:in `block in updater'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/file_update_checker.rb:78:in `call'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/file_update_checker.rb:78:in `execute'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:27:in `updater'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application/finisher.rb:66:in `block in <module:Finisher>'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/vagrant/myapp/config/environment.rb:5:in `<top (required)>'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application.rb:103:in `require_environment!'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/application.rb:297:in `block (2 levels) in initialize_tasks'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:246:in `call'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:246:in `block in execute'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:241:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:241:in `execute'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:184:in `block in invoke_with_call_chain'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:177:in `invoke_with_call_chain'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:205:in `block in invoke_prerequisites'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:203:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:203:in `invoke_prerequisites'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:183:in `block in invoke_with_call_chain'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:177:in `invoke_with_call_chain'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/task.rb:170:in `invoke'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:143:in `invoke_task'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:101:in `block (2 levels) in top_level'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:101:in `each'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:101:in `block in top_level'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:110:in `run_with_threads'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:95:in `top_level'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:73:in `block in run'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429@global/gems/rake-10.0.4/lib/rake/application.rb:70:in `run'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/bin/ruby_noexec_wrapper:14:in `eval'
/home/vagrant/.rvm/gems/ruby-1.9.3-p429/bin/ruby_noexec_wrapper:14:in `<main>'
Tasks: TOP => db:migrate => environment
运行命令rake db:create:all告诉我所有表已经被创建。
我不知道这是否重要，但我正在使用devise 2.2.4和最新的acts_as_messageable。
请注意，这个应用程序在Windows开发机器上和Heroku生产环境中都可以正常工作... 我只是想让它在vagrant上也能运行。
我的database.yml是：
common: &common
adapter: postgresql
enconding: utf8
host: localhost
username: postgres
password: 1234
pool: 5
timeout: 5000
development:
<<: *common
database: myapp_dev
port: 5432
test:
<<: *common
database: myapp_test
production:
<<: *common
database: myapp_prod
我怀疑这与一些postgres配置有关，但我不确定。目前还没有找到任何解决方案。
在检查psql时，我得到了以下结果。
postgres=# \l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-------------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
template0 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
myapp_dev | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
myapp_prod | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
myapp_test | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
(6 rows)
postgres=# \d myapp_dev
Did not find any relation named "myapp_dev".
这里似乎有些问题.. 有解决方案吗？
注意 - 这种情况发生在rake db任务中，例如schema:load，setup。
如果需要的话 - 这里是与acts_as_messageable相关的错误信息，包括迁移文件。
用户：行120-123
acts_as_messageable :table_name => "messages",
:required => :body,
:class_name => "Message",
:dependent => :destroy
消息类（第25-29行）
class Message < ActsAsMessageable::Message
attr_accessible :sender_open, :reciever_open
scope :unread_by, lambda{ |user| where("reciever_open = false AND received_messageable_id = ?", user.id)}
scope :unread, where('reciever_open = false')
迁移文件 - 20121127082447_create_messages_table.rb（它不是第一个或最后一个，在中间某个位置）
class CreateMessagesTable < ActiveRecord::Migration
def self.up
create_table :messages do |t|
t.string :topic
t.text :body
t.references :received_messageable, :polymorphic => true
t.references :sent_messageable, :polymorphic => true
t.boolean :opened, :default => false
t.boolean :recipient_delete, :default => false
t.boolean :sender_delete, :default => false
t.timestamps
# ancestry
t.string :ancestry
end
add_index :messages, [:sent_messageable_id, :received_messageable_id], :name => "acts_as_messageable_ids"
add_index :messages, :ancestry
end
def self.down
drop_table :messages
end
end
::regclass将返回与您的search_path匹配的第一个表，因此在它工作的机器上，迁移可能仅仅是在某个时候为不应该处理的内容提供服务，但由于查询返回正确的列名，因此没有后续影响。 - Denis de Bernardy'"messages"'::regclass会根据需要进行扩展。 但是，如果它在准备获取语句之前创建，则会出现关系不存在的错误。 - Denis de Bernardy