Question

我有两个模型，如下所述。我有一个我想指定的连接表，但由于它们不在同一个数据库中，所以它出错了。如果我在“join_table：”选项哈希中指定我的开发数据库，那么它可以工作。但当然，这会在进入生产阶段时破裂。

错误

TinyTds::Error: Invalid object name 'ncaa_matches'.: EXEC sp_executesql N'SELECT 1 AS one FROM [player_extracts] INNER JOIN [ncaa_matches] ON [player_extracts].[college_player_id] = [ncaa_matches].[ncaa_id] WHERE [ncaa_matches].[player_id] = @0 ORDER BY [player_extracts].[college_player_id] ASC OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY', N'@0 int', @0 = 247489

模型A

class PlayerExtract < IncomingModel
  self.table_name = 'player_extracts'
  self.primary_key = 'player_id'

  has_and_belongs_to_many :players, join_table: "ncaa_matches", association_foreign_key: 'player_id', uniq: true
end

模型B

class Player < ActiveRecord::Base
    has_and_belongs_to_many :player_extracts, join_table: "ncaa_matches", association_foreign_key: 'ncaa_id', uniq: true
end

Answer 1

这似乎有效，但这是处理这个问题的正确方法吗？

has_and_belongs_to_many :player_extracts, join_table: Rails.configuration.database_configuration[Rails.env]["database"].to_s+".dbo.ncaa_matches", association_foreign_key: 'ncaa_id', uniq: true

在Rails中，当我在不同的数据库上有两个模型时，如何设置我的HABTM？

1 个答案: