Ruby on rails rails\u sql\u视图错误？

我正在尝试使用迁移来管理我的SQL Server视图。我找到了rails\u sql\u views扩展，它看起来正是我所需要的，但是我在运行迁移时遇到了一个我无法理解的错误。以下是错误：

rake aborted!
An error has occurred, this and all later migrations canceled:
uninitialized constant CreateFunds 

以下是我的迁移：

class CreateFundView < ActiveRecord::Migration
  def up
    create_view :v_funds, "SELECT * from funds"
  end

  def down
    drop_view :v_funds
  end
end

class CreateFundView < ActiveRecord::Migration
  def up
create_view :funds,
            "SELECT     TOP (100) PERCENT
              FUND.FUND_ID AS [fund_id],
              FUND.DESCRIPTION AS [fund_description],
              FUND_FUND_CATEGORY.LONGDESCRIPTION AS [fund_category],
              FUND.NOTES AS [fund_notes]
              FROM
                RE7.dbo.FUND AS FUND LEFT OUTER JOIN
                RE7.dbo.TABLEENTRIES AS FUND_FUND_CATEGORY ON FUND.FUND_CATEGORY = FUND_FUND_CATEGORY.TABLEENTRIESID
              WHERE     (FUND.FUNDTYPE = 23702)
              ORDER BY [fund_description]"
  end

  def down
    drop_view :funds
  end
end

class CreateFundView

我使用的是Rails 3.1.1。

---

有人能帮我吗

我让它工作起来，我将rails_sql_views gem升级为与rails 3.1.1兼容的版本。 （至少我认为这是解决问题的办法！）。下面是一个链接，指向正在运行的gem：

以下是一个工作迁移：

class CreateFundView < ActiveRecord::Migration
  def up
    create_view :v_funds, "SELECT * from funds"
  end

  def down
    drop_view :v_funds
  end
end

class CreateFundView < ActiveRecord::Migration
  def up
create_view :funds,
            "SELECT     TOP (100) PERCENT
              FUND.FUND_ID AS [fund_id],
              FUND.DESCRIPTION AS [fund_description],
              FUND_FUND_CATEGORY.LONGDESCRIPTION AS [fund_category],
              FUND.NOTES AS [fund_notes]
              FROM
                RE7.dbo.FUND AS FUND LEFT OUTER JOIN
                RE7.dbo.TABLEENTRIES AS FUND_FUND_CATEGORY ON FUND.FUND_CATEGORY = FUND_FUND_CATEGORY.TABLEENTRIESID
              WHERE     (FUND.FUNDTYPE = 23702)
              ORDER BY [fund_description]"
  end

  def down
    drop_view :funds
  end
end

class CreateFundView

类名中是否缺少“s”？或类名与迁移文件名不匹配？已选中所有选项。这里有一个stacktrace，如果有帮助的话；你确定吗？我猜您的迁移文件名类似于

db/migrate/20111117101626_create_funds.rb

，该文件中的迁移类名为

CreateFundView

，但rails希望找到一个类名

CreateFunds

。因此，要么重命名迁移文件，要么更改类名，使它们匹配。