rake test - self.table_name not recognized

我有一個奇怪的錯誤。當我試圖運行單元測試，它給了我下面的錯誤：rake test - self.table_name not recognized

test_the_truth(UpdateMainTest): 
ActiveRecord::StatementInvalid: Could not find table 'blacklists' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/sqlite_adapter.rb:472:in `table_structure' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/sqlite_adapter.rb:346:in `columns' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:660:in `column_names' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:652:in `timestamp_column_names' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:585:in `block in table_rows' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:579:in `each' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:579:in `map' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:579:in `table_rows' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:494:in `block (3 levels) in create_fixtures' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:492:in `each' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:492:in `block (2 levels) in create_fixtures' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:491:in `block in create_fixtures' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract_adapter.rb:168:in `disable_referential_integrity' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:476:in `create_fixtures' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:895:in `load_fixtures' 
/var/lib/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/fixtures.rb:849:in `setup_fixtures' 
/var/lib/gems/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:407:in `_run__379848442555604621__setup__3487204981098397389__callbacks' 
/var/lib/gems/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:405:in `__run_callback' 
/var/lib/gems/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:385:in `_run_setup_callbacks' 
/var/lib/gems/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:81:in `run_callbacks' 
/var/lib/gems/1.9.1/gems/activesupport-3.2.13/lib/active_support/testing/setup_and_teardown.rb:35:in `run'

這是我的黑名單模式：

class Blacklist < ActiveRecord::Base 
    attr_accessible :abbreviation, :name 
    self.table_name = "blacklist" 
    validates :abbreviation, :presence => :true, :uniqueness => :true 
    validates :name, :presence => :true 
end

該模式還正確地列出表：

create_table "blacklist", :force => true do |t| 
    t.string "name" 
    t.string "abbreviation" 
    t.datetime "created_at", :null => false 
    t.datetime "updated_at", :null => false 
    end

我跑耙db：測試：不止一次準備，但錯誤仍然存在。當我使用rails控制檯時，我可以創建沒有錯誤的黑名單對象。任何想法我可以做什麼？

來源

2013-07-24 RoRNewbie

謝謝你的所有幫助。

我無法真正追查問題的根源，但是當我在test_helper.rb中註釋掉加載所有燈具的行時，錯誤再次出現。

來源

2013-07-29 19:05:53 RoRNewbie

使用與以複數的形式符號，表名應該是複數：

create_table "blacklists", :force => true do |t| 
    t.string "name" 
    t.string "abbreviation" 
    t.datetime "created_at", :null => false 
    t.datetime "updated_at", :null => false 
    end

來源

2013-07-24 20:40:38

感謝您的回答，但我特別指定了self.table_name，不必使用名稱「黑名單」。如果有一個以非標準方式命名錶的函數，它不應該能夠正常工作嗎？ – RoRNewbie

使用self.class.table_name。它可能工作。並在attr_accessible之上使用它。 –

試了兩個。 self.class.table_name給出的錯誤是，方法table_name在Class：Class中不可用，並且在attr_accessible之前也不會進行更改。 – RoRNewbie

如果只與你的單元測試的發生，也許是測試：

self.table_name = :blacklists

用複數形式創建的表名db已過時。你應該嘗試重建它rake db:migrate db:test:clone

來源

2013-07-25 18:00:15

謝謝，它沒有工作。 – RoRNewbie

rake test - self.table_name not recognized

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