我試圖設置一個新的 Rails 5應用程序(ruby 2.3.1,rails 5.0.0.rc1)與postgresql,制定的寶石,它是無法運行rails db:seed
由於以下錯誤:Rails 5 - PG :: UndefinedTable:錯誤:關係「application_records」不存在
PG::UndefinedTable: ERROR: relation "application_records" does not exist
LINE 8: WHERE a.attrelid = '"application_records"'::r...
^
/Users//.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/database_statements.rb:88:in `async_exec'
/Users/foo/.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/database_statements.rb:88:in `block in query'
/Users/foo/.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/abstract_adapter.rb:566:in `block in log'
/Users/foo/.rvm/gems/[email protected]/gems/activesupport-5.0.0.rc1/lib/active_support/notifications/instrumenter.rb:21:in `instrument'
/Users/foo/.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/abstract_adapter.rb:560:in `log'
/Users/foo/.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/database_statements.rb:87:in `query'
/Users/foo/.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql_adapter.rb:739:in `column_definitions'
/Users/foo/.rvm/gems/[email protected]/gems/activerecord-5.0.0.rc1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:227:in `columns'
多的谷歌搜索後,我意識到,這事做與ApplicationRecord base class change in rails 5。顯然,沒有名爲application_records
的表,因此active_support不應該在尋找它。我已經檢查了app/models/application_record.rb
存在並且有正確的內容。此外,用戶模型(這是目前我的應用程序的唯一模式)擴展ApplicationRecord預期:
class User < ApplicationRecord
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable,
:recoverable, :rememberable, :trackable, :validatable
end
rails db: migrate
運行良好,但rails db:seed
上述錯誤扼流圈。
任何人都可以闡明什麼可能導致這一點?
的application_record.rb
內容:
class ApplicationRecord < ActiveRecord::Base
self.abstract_class = true
end
你的'application_record.rb'文件的內容是什麼? –
將application_record.rb的內容添加到問題 –
謝謝。我創建了一個示例5.0 RC應用程序,但無法重現此問題。我會建議在Rails問題跟蹤器上打開一個問題 - https://github.com/rails/rails/issues/ - 將示例應用程序上傳到Github,它重現了問題。在Github問題上標記爲@ prathamesh-sonpatki。謝謝。 –