モデルの関係を正しく設定する際に問題が発生しています。私は次のクラスを持っています:
personal_portfolio.rb
class PersonalPortfolio < Portfolio
has_many :user_stake_in_portfolios, :foreign_key => :possession_id
belongs_to :owner, :class_name => 'User'
has_many :managers, :through => :user_stake_in_portfolios, :source => :user
has_many :company_permissions, :foreign_key => :owner_id
has_many :company_permissions_as_viewer, :class_name => 'CompanyPermission', :foreign_key => :owner_id, :conditions => 'can_view_info = true || can_edit_cap_table = true || can_view_key_metric = true || can_view_all_metrics = true || can_view_cap_table = true || can_edit_managers = true || can_edit_info = true || can_edit_metrics = true'
has_many :companies_as_viewer, :class_name => 'Company', :through => :company_permissions_as_viewer, :source => :entity
has_many :company_permissions_as_manager, :class_name => 'CompanyPermission', :foreign_key => :owner_id, :conditions => { :can_edit_managers => true }
has_many :companies_as_manager, :class_name => 'Company', :through => :company_permissions_as_manager, :source => :entity
has_many :portfolio_permissions, :foreign_key => :owner_id
has_many :portfolio_permissions_as_viewer, :class_name => 'PortfolioPermission', :foreign_key => :owner_id, :conditions => 'can_view_info = true || can_edit_cap_table = true || can_view_key_metric = true || can_view_all_metrics = true || can_view_cap_table = true || can_edit_managers = true || can_edit_info = true || can_edit_metrics = true'
has_many :portfolios_as_viewer, :class_name => 'Portfolio', :through => :portfolio_permissions_as_viewer, :source => :entity
has_many :portfolio_permissions_as_manager, :class_name => 'PortfolioPermission', :foreign_key => :owner_id, :conditions => { :can_edit_managers => true }
has_many :portfolios_as_manager, :class_name => 'GroupPortfolio', :through => :portfolio_permissions_as_manager, :source => :entity
after_create :add_manager
...
end
user.rb
class User < ActiveRecord::Base
...
has_many :user_stake_in_portfolios, foreign_key: :owner_id
has_many :portfolios, through: :user_stake_in_portfolios
has_many :personal_portfolios, through: :user_stake_in_portfolios, :class_name => 'PersonalPortfolio', :source => :portfolio, :conditions => { :type => 'PersonalPortfolio' }
has_many :companies, through: :portfolios, source: :portfolio_companies, class_name: 'Company'
has_many :managed_portfolios, :through => :personal_portfolios, :source => :portfolios_as_manager
has_many :viewable_portfolios, :through => :personal_portfolios, :source => :portfolios_as_viewer
has_many :managed_companies, :through => :personal_portfolios, :source => :companies_as_manager
has_many :viewable_companies, :through => :personal_portfolios, :source => :companies_as_viewer
...
end
奇妙なのは、コマンドを実行すると、User.find(3).personal_portfolios.first.portfolios_as_viewer
期待どおりの結果が得られることです (3 つのポートフォリオ)。しかし、問題は、試してみるとUser.find(3).viewable_portfolios
、1 つのポートフォリオ (3 つのうちの 1 つ) しか得られないことです。ユーザー。ソースとしてのviewable_portfolios
使用has_many :through
です。PersonalPortfolio.portfolios_as_viewer
2 番目のコマンドによって生成されたクエリを見ると、portfolios
テーブルが 2 回使用されていることがわかります。
SELECT `portfolios`.*
FROM `portfolios`
INNER JOIN `permissions`
ON `portfolios`.`id` = `permissions`.`entity_id`
INNER JOIN `portfolios` `personal_portfolios_viewable_portfolios_join`
ON `permissions`.`owner_id` =
`personal_portfolios_viewable_portfolios_join`.`id`
INNER JOIN `stakes`
ON `personal_portfolios_viewable_portfolios_join`.`id` =
`stakes`.`possession_id`
WHERE `permissions`.`type` IN ( 'PortfolioPermission' )
AND `portfolios`.`type` IN ( 'PersonalPortfolio' )
AND `stakes`.`type` IN ( 'UserStakeInPortfolio' )
AND `stakes`.`owner_id` = 3
AND ( can_view_info = true
|| can_edit_cap_table = true
|| can_view_key_metric = true
|| can_view_all_metrics = true
|| can_view_cap_table = true
|| can_edit_managers = true
|| can_edit_info = true
|| can_edit_metrics = true )
AND ( `personal_portfolios_viewable_portfolios_join`.`type` = 'PersonalPortfolio' )
User.find(3).managed_portfolios == User.find(3).personal_portfolios.first.portfolios_as_manager
false を返しながら true を返すので、私には奇妙ですUser.find(3).viewable_portfolios == User.find(3).personal_portfolios.first.portfolios_as_viewer
。そして、関係は同じように見えますが、企業は問題なく機能します (ただし、依存関係/データが異なるため、正しい関係を示しているわけではありません)。
質問
どうすればUser.find(3).viewable_portfolios
同じように返品できUser.find(3).personal_portfolios.first.portfolios_as_viewer
ますか?
役立つ出力
1.9.3-p362 :122 > User.find(3).viewable_portfolios
User Load (0.8ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 LIMIT 1
Portfolio Load (1.1ms) SELECT `portfolios`.* FROM `portfolios` INNER JOIN `permissions` ON `portfolios`.`id` = `permissions`.`entity_id` INNER JOIN `portfolios` `personal_portfolios_viewable_portfolios_join` ON `permissions`.`owner_id` = `personal_portfolios_viewable_portfolios_join`.`id` INNER JOIN `stakes` ON `personal_portfolios_viewable_portfolios_join`.`id` = `stakes`.`possession_id` WHERE `permissions`.`type` IN ('PortfolioPermission') AND `portfolios`.`type` IN ('PersonalPortfolio') AND `stakes`.`type` IN ('UserStakeInPortfolio') AND `stakes`.`owner_id` = 3 AND (can_view_info = true || can_edit_cap_table = true || can_view_key_metric = true || can_view_all_metrics = true || can_view_cap_table = true || can_edit_managers = true || can_edit_info = true || can_edit_metrics = true) AND (`personal_portfolios_viewable_portfolios_join`.`type` = 'PersonalPortfolio')
=> [#<PersonalPortfolio id: 3, name: "Manager Man's portfolio", established: "2013-09-24", created_at: "2013-09-24 23:20:34", updated_at: "2013-09-24 23:20:34", type: "PersonalPortfolio", base_capital_invested: nil, total_shares: nil, logo_file_name: nil, logo_content_type: nil, logo_file_size: nil, logo_updated_at: nil, city: nil, state: nil, invited_manager_email: nil, claim_code: nil, angellist_url: nil, facebook_url: nil, linkedin_url: nil, twitter_url: nil, website_url: nil, longitude: nil, latitude: nil, is_single_use_fund: false, tagline: nil, thumb_file_name: nil, thumb_content_type: nil, thumb_file_size: nil, thumb_updated_at: nil, use_committed_capital: true, owner_id: 3>]
1.9.3-p362 :123 > User.find(3).viewable_portfolios.count
User Load (0.9ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 LIMIT 1
(2.2ms) SELECT COUNT(*) FROM `portfolios` INNER JOIN `permissions` ON `portfolios`.`id` = `permissions`.`entity_id` INNER JOIN `portfolios` `personal_portfolios_viewable_portfolios_join` ON `permissions`.`owner_id` = `personal_portfolios_viewable_portfolios_join`.`id` INNER JOIN `stakes` ON `personal_portfolios_viewable_portfolios_join`.`id` = `stakes`.`possession_id` WHERE `permissions`.`type` IN ('PortfolioPermission') AND `portfolios`.`type` IN ('PersonalPortfolio') AND `stakes`.`type` IN ('UserStakeInPortfolio') AND `stakes`.`owner_id` = 3 AND (can_view_info = true || can_edit_cap_table = true || can_view_key_metric = true || can_view_all_metrics = true || can_view_cap_table = true || can_edit_managers = true || can_edit_info = true || can_edit_metrics = true) AND (`personal_portfolios_viewable_portfolios_join`.`type` = 'PersonalPortfolio')
=> 1
1.9.3-p362 :124 > User.find(3).personal_portfolios.first.portfolios_as_viewer
User Load (0.9ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 LIMIT 1
PersonalPortfolio Load (0.8ms) SELECT `portfolios`.* FROM `portfolios` INNER JOIN `stakes` ON `portfolios`.`id` = `stakes`.`possession_id` WHERE `stakes`.`type` IN ('UserStakeInPortfolio') AND `portfolios`.`type` IN ('PersonalPortfolio') AND `stakes`.`owner_id` = 3 AND (`portfolios`.`type` = 'PersonalPortfolio') LIMIT 1
Portfolio Load (1.0ms) SELECT `portfolios`.* FROM `portfolios` INNER JOIN `permissions` ON `portfolios`.`id` = `permissions`.`entity_id` WHERE `permissions`.`type` IN ('PortfolioPermission') AND `permissions`.`owner_id` = 3 AND (can_view_info = true || can_edit_cap_table = true || can_view_key_metric = true || can_view_all_metrics = true || can_view_cap_table = true || can_edit_managers = true || can_edit_info = true || can_edit_metrics = true)
=> [#<PersonalPortfolio id: 3, name: "Manager Man's portfolio", established: "2013-09-24", created_at: "2013-09-24 23:20:34", updated_at: "2013-09-24 23:20:34", type: "PersonalPortfolio", base_capital_invested: nil, total_shares: nil, logo_file_name: nil, logo_content_type: nil, logo_file_size: nil, logo_updated_at: nil, city: nil, state: nil, invited_manager_email: nil, claim_code: nil, angellist_url: nil, facebook_url: nil, linkedin_url: nil, twitter_url: nil, website_url: nil, longitude: nil, latitude: nil, is_single_use_fund: false, tagline: nil, thumb_file_name: nil, thumb_content_type: nil, thumb_file_size: nil, thumb_updated_at: nil, use_committed_capital: true, owner_id: 3>, #<GroupPortfolio id: 5, name: "New Fund, LLC", established: "2009-01-01", created_at: "2013-09-24 23:20:36", updated_at: "2013-09-24 23:20:36", type: "GroupPortfolio", base_capital_invested: 2000000, total_shares: 1000000, logo_file_name: nil, logo_content_type: nil, logo_file_size: nil, logo_updated_at: nil, city: "Hamlin", state: "WV", invited_manager_email: nil, claim_code: nil, angellist_url: nil, facebook_url: nil, linkedin_url: nil, twitter_url: nil, website_url: nil, longitude: -82.1029, latitude: 38.2787, is_single_use_fund: false, tagline: nil, thumb_file_name: nil, thumb_content_type: nil, thumb_file_size: nil, thumb_updated_at: nil, use_committed_capital: false, owner_id: nil>, #<GroupPortfolio id: 6, name: "SB, LLC", established: "2009-01-01", created_at: "2013-09-24 23:20:36", updated_at: "2013-09-24 23:20:36", type: "GroupPortfolio", base_capital_invested: 2000000, total_shares: 2000000, logo_file_name: nil, logo_content_type: nil, logo_file_size: nil, logo_updated_at: nil, city: "Bloomington", state: "IN", invited_manager_email: nil, claim_code: nil, angellist_url: nil, facebook_url: nil, linkedin_url: nil, twitter_url: nil, website_url: nil, longitude: -86.5264, latitude: 39.1653, is_single_use_fund: false, tagline: nil, thumb_file_name: nil, thumb_content_type: nil, thumb_file_size: nil, thumb_updated_at: nil, use_committed_capital: true, owner_id: nil>]
1.9.3-p362 :125 > User.find(3).personal_portfolios.first.portfolios_as_viewer.count
User Load (0.6ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 LIMIT 1
PersonalPortfolio Load (0.5ms) SELECT `portfolios`.* FROM `portfolios` INNER JOIN `stakes` ON `portfolios`.`id` = `stakes`.`possession_id` WHERE `stakes`.`type` IN ('UserStakeInPortfolio') AND `portfolios`.`type` IN ('PersonalPortfolio') AND `stakes`.`owner_id` = 3 AND (`portfolios`.`type` = 'PersonalPortfolio') LIMIT 1
(0.7ms) SELECT COUNT(*) FROM `portfolios` INNER JOIN `permissions` ON `portfolios`.`id` = `permissions`.`entity_id` WHERE `permissions`.`type` IN ('PortfolioPermission') AND `permissions`.`owner_id` = 3 AND (can_view_info = true || can_edit_cap_table = true || can_view_key_metric = true || can_view_all_metrics = true || can_view_cap_table = true || can_edit_managers = true || can_edit_info = true || can_edit_metrics = true)
=> 3
1.9.3-p362 :126 > User.find(3).personal_portfolios
User Load (0.9ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 LIMIT 1
PersonalPortfolio Load (0.5ms) SELECT `portfolios`.* FROM `portfolios` INNER JOIN `stakes` ON `portfolios`.`id` = `stakes`.`possession_id` WHERE `stakes`.`type` IN ('UserStakeInPortfolio') AND `portfolios`.`type` IN ('PersonalPortfolio') AND `stakes`.`owner_id` = 3 AND (`portfolios`.`type` = 'PersonalPortfolio')
=> [#<PersonalPortfolio id: 3, name: "Manager Man's portfolio", established: "2013-09-24", created_at: "2013-09-24 23:20:34", updated_at: "2013-09-24 23:20:34", type: "PersonalPortfolio", base_capital_invested: nil, total_shares: nil, logo_file_name: nil, logo_content_type: nil, logo_file_size: nil, logo_updated_at: nil, city: nil, state: nil, invited_manager_email: nil, claim_code: nil, angellist_url: nil, facebook_url: nil, linkedin_url: nil, twitter_url: nil, website_url: nil, longitude: nil, latitude: nil, is_single_use_fund: false, tagline: nil, thumb_file_name: nil, thumb_content_type: nil, thumb_file_size: nil, thumb_updated_at: nil, use_committed_capital: true, owner_id: 3>]
1.9.3-p362 :127 > User.find(3).personal_portfolios.count
User Load (0.8ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 LIMIT 1
(0.4ms) SELECT COUNT(*) FROM `portfolios` INNER JOIN `stakes` ON `portfolios`.`id` = `stakes`.`possession_id` WHERE `stakes`.`type` IN ('UserStakeInPortfolio') AND `portfolios`.`type` IN ('PersonalPortfolio') AND `stakes`.`owner_id` = 3 AND (`portfolios`.`type` = 'PersonalPortfolio')
=> 1
別のバリエーション(説明/単純化のため)
定義を次のように変更するpersonal_portfolio.rb
と:
has_many :portfolio_permissions_as_viewer, :class_name => 'PortfolioPermission', :foreign_key => :owner_id, :conditions => { :can_view_info => true }
User.find(3).viewable_portfolios == User.find(3).personal_portfolios.first.portfolios_as_viewer
まだ false を返します。しかしUser.find(3).viewable_portfolios
SELECT `portfolios`.*
FROM `portfolios`
INNER JOIN `permissions`
ON `portfolios`.`id` = `permissions`.`entity_id`
INNER JOIN `portfolios` `personal_portfolios_viewable_portfolios_join`
ON `permissions`.`owner_id` =
`personal_portfolios_viewable_portfolios_join`.`id`
INNER JOIN `stakes`
ON `personal_portfolios_viewable_portfolios_join`.`id` =
`stakes`.`possession_id`
WHERE `permissions`.`type` IN ( 'PortfolioPermission' )
AND `portfolios`.`type` IN ( 'PersonalPortfolio' )
AND `stakes`.`type` IN ( 'UserStakeInPortfolio' )
AND `stakes`.`owner_id` = 3
AND ( `permissions`.`can_view_info` = 1 )
AND ( `personal_portfolios_viewable_portfolios_join`.`type` =
'PersonalPortfolio' )
portfolios
問題は、両方が必要であり、実際には whenpersonal_portfolios_viewable_portfolios_join
が任意のタイプである必要があることだと思います。これにより、私はそれが私がどのように関係を築いているかを信じるようになりますが、100%確実ではありません.PersonalPortfolio
portfolios
もっといります? さらに情報/コードが必要な場合はお知らせください。余分なことをしすぎないようにしましたが、役に立つほど十分に与えられなかったかもしれません。