SQL錯誤不能在事務內啓動一個事務，同時黃瓜

當我試圖填寫的表格，並創建顯示此sqlite的錯誤記錄，但是當我在瀏覽器中手動嘗試代碼時沒有錯誤。

我使用的鐵軌4

這裏是我的控制器代碼

class Admin::ItemsController < ApplicationController 
    def index 
     @items=Item.all 
    end 

    def new 
     @item=Item.new 
    end 

    def create 
     @item=Item.new items_params 
      respond_to do |format| 
       if @item.save 
        format.html { redirect_to admin_items_path } 
       else 
        format.html { redirect_to new_admin_items_path } 
       end 
      end 
    end 

private 
    def items_params 
     params.require(:item).permit(:name,:price)  
    end 
end

這裏是我的特性文件

Feature: Manage Items 
    In order to make a store 
    As an admin 
    I want to create and manage items 

    Scenario: Items List 
    Given I go to the new admin item page 
    And I fill in "Name" with "Shampoo" 
    And I fill in "Price" with "50" 
    When I press "Create" 
    Then I should be on the admin items page 
    And I should see "Shampoo"

和步驟定義

require File.expand_path(File.join(File.dirname(__FILE__), "..", "support", "paths")) 

Given /^I go to the (.+)$/ do |page_name| 
    visit path_to(page_name) 
end 

And /^I fill in "([^\"]*)" with "([^\"]*)"$/ do |field, value| 
    fill_in(field.gsub(' ', '_'), :with => value) 
end 

When /^I press "([^\"]*)"$/ do |button| 
    click_button(button) 
end 

Then /^I should be on the (.+)$/ do |page_name| 
    current_path.should == path_to(page_name) 
end 

And /^I should see "(.*?)"$/ do |arg1| 
    page.should have_content(arg1) 
end

這錯誤是sh在步驟4中擁有，即，當單擊創建按鈕並且調用項目＃創建時。

我不知道代碼有什麼問題，希望有人可以幫忙。

UPDATE：

我想這個問題是在黃瓜護欄了一條反對 https://github.com/cucumber/cucumber-rails/issues/231

完全跟蹤：

Using the default profile... 
WARNING: Nokogiri was built against LibXML version 2.7.8, but has dynamically loaded 2.9.0 
DEPRECATION WARNING: ActionController::Integration is deprecated and will be removed, use ActionDispatch::Integration instead. (called from <module:Rails> at /home/phanindra/.gem/ruby/1.9.1/gems/cucumber-rails-1.3.0/lib/cucumber/rails/world.rb:9) 
DEPRECATION WARNING: ActionController::IntegrationTest is deprecated and will be removed, use ActionDispatch::IntegrationTest instead. (called from <module:Rails> at /home/phanindra/.gem/ruby/1.9.1/gems/cucumber-rails-1.3.0/lib/cucumber/rails/world.rb:9) 
Feature: Manage Items 
    In order to make a store 
    As an admin 
    I want to create and manage items 

    Scenario: Items List      # features/manage_items.feature:6 
DEPRECATION WARNING: #increment_open_transactions is deprecated and has no effect. (called from start at /home/phanindra/.gem/ruby/1.9.1/gems/database_cleaner-0.9.1/lib/database_cleaner/active_record/transaction.rb:11) 
    Given I go to the new admin item page # features/step_definitions/item_steps.rb:3 
    And I fill in "Name" with "Shampoo"  # features/step_definitions/item_steps.rb:7 
    And I fill in "Price" with "50"   # features/step_definitions/item_steps.rb:7 
    When I press "Create"     # features/step_definitions/item_steps.rb:11 
     SQLite3::SQLException: cannot start a transaction within a transaction: begin transaction (ActiveRecord::StatementInvalid) 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb:353:in `block in begin_db_transaction' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb:305:in `block in log' 
     /home/phanindra/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb:300:in `log' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb:353:in `begin_db_transaction' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb:129:in `initialize' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb:17:in `new' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb:17:in `begin' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:231:in `begin_transaction' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:208:in `within_new_transaction' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb:201:in `transaction' 
     /home/phanindra/rails/activerecord/lib/active_record/transactions.rb:209:in `transaction' 
     /home/phanindra/rails/activerecord/lib/active_record/transactions.rb:319:in `with_transaction_returning_status' 
     /home/phanindra/rails/activerecord/lib/active_record/transactions.rb:269:in `block in save' 
     /home/phanindra/rails/activerecord/lib/active_record/transactions.rb:280:in `rollback_active_record_state!' 
     /home/phanindra/rails/activerecord/lib/active_record/transactions.rb:268:in `save' 
     /home/phanindra/rails/activerecord/lib/active_record/persistence.rb:37:in `create' 
     ./app/controllers/admin/items_controller.rb:11:in `create' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
     /home/phanindra/rails/actionpack/lib/abstract_controller/base.rb:189:in `process_action' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/rendering.rb:10:in `process_action' 
     /home/phanindra/rails/actionpack/lib/abstract_controller/callbacks.rb:18:in `block in process_action' 
     /home/phanindra/rails/activesupport/lib/active_support/callbacks.rb:393:in `_run__143383953690284082__process_action__callbacks' 
     /home/phanindra/rails/activesupport/lib/active_support/callbacks.rb:78:in `run_callbacks' 
     /home/phanindra/rails/actionpack/lib/abstract_controller/callbacks.rb:17:in `process_action' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/rescue.rb:29:in `process_action' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' 
     /home/phanindra/rails/activesupport/lib/active_support/notifications.rb:158:in `block in instrument' 
     /home/phanindra/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
     /home/phanindra/rails/activesupport/lib/active_support/notifications.rb:158:in `instrument' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/params_wrapper.rb:245:in `process_action' 
     /home/phanindra/rails/activerecord/lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
     /home/phanindra/rails/actionpack/lib/abstract_controller/base.rb:136:in `process' 
     /home/phanindra/rails/actionpack/lib/abstract_controller/rendering.rb:44:in `process' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal.rb:195:in `dispatch' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
     /home/phanindra/rails/actionpack/lib/action_controller/metal.rb:231:in `block in action' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/routing/route_set.rb:77:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/routing/route_set.rb:77:in `dispatch' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/routing/route_set.rb:45:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/journey/router.rb:69:in `block in call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/journey/router.rb:57:in `each' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/journey/router.rb:57:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/routing/route_set.rb:614:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/params_parser.rb:30:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/flash.rb:233:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/cookies.rb:443:in `call' 
     /home/phanindra/rails/activerecord/lib/active_record/query_cache.rb:36:in `call' 
     /home/phanindra/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:632:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
     /home/phanindra/rails/activesupport/lib/active_support/callbacks.rb:373:in `_run__2084705409073281596__call__callbacks' 
     /home/phanindra/rails/activesupport/lib/active_support/callbacks.rb:78:in `run_callbacks' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/remote_ip.rb:76:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb:18:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:31:in `call' 
     /home/phanindra/rails/railties/lib/rails/rack/logger.rb:32:in `call_app' 
     /home/phanindra/rails/railties/lib/rails/rack/logger.rb:16:in `block in call' 
     /home/phanindra/rails/activesupport/lib/active_support/tagged_logging.rb:67:in `block in tagged' 
     /home/phanindra/rails/activesupport/lib/active_support/tagged_logging.rb:25:in `tagged' 
     /home/phanindra/rails/activesupport/lib/active_support/tagged_logging.rb:67:in `tagged' 
     /home/phanindra/rails/railties/lib/rails/rack/logger.rb:16:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/request_id.rb:21:in `call' 
     /home/phanindra/rails/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call' 
     /home/phanindra/rails/actionpack/lib/action_dispatch/middleware/static.rb:63:in `call' 
     /home/phanindra/rails/railties/lib/rails/engine.rb:508:in `call' 
     /home/phanindra/rails/railties/lib/rails/application.rb:95:in `call' 
     ./features/step_definitions/item_steps.rb:12:in `/^I press "([^\"]*)"$/' 
     features/manage_items.feature:10:in `When I press "Create"' 
    Then I should be on the admin items page # features/step_definitions/item_steps.rb:15 
    And I should see "Shampoo"    # features/step_definitions/item_steps.rb:19 

Failing Scenarios: 
cucumber features/manage_items.feature:6 # Scenario: Items List 

1 scenario (1 failed) 
6 steps (1 failed, 2 skipped, 3 passed) 
0m3.476s

來源

2013-01-16 pahnin

更新是否解決了您的問題？如果是這樣，請回答你自己的問題！另外，請提供您收到的完整錯誤信息，可能是堆棧跟蹤？ – Dan

不，它沒有修復問題 – pahnin

它看起來像你使用DatabaseCleaner，這默認情況下在事務中運行每個功能。同時，ActiveRecord在保存該項目時自己啓動一個事務。不幸的是，SQLite不支持嵌套事務。

如果你change your DatabaseCleaner strategy到:truncation它應該避免這個錯誤。或者，你可以測試一個更強大的數據庫，如PostgreSQL。

來源

2013-01-21 15:30:28

感謝您的回答，但現在我得到這個錯誤，所以現在不能真正改變database_cleaner策略工作！ :( – pahnin

對不起，你得到的新錯誤是什麼？棄用警告不應該阻止你創建一個記錄，它們只是警告，而不是錯誤。 –

這一個https://github.com/bmabey/database_cleaner/pull/153 – pahnin

這對我有效。按照Andy H的建議，編輯您的Gemfile以從github上的最後一個源文件中提取。

gem 'database_cleaner', github: 'bmabey/database_cleaner'

來源

2013-04-17 09:00:48 mrmrf

SQL錯誤不能在事務內啓動一個事務，同時黃瓜

回答

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