我有一个基本的has_many通过模型,客户可以有多个游戏:
客户模型属于合作伙伴,因此具有partner_id列,对于属于合作伙伴的游戏模型也是如此。
models/customer.rb
has_many :customer_games
has_many :games, through: :customer_games
belongs_to :partner, :foreign_key => 'partner_id'
models/game.rb
has_many :customer_games
has_many :customers, through: :customer_games
belongs_to :partner, :foreign_key => 'partner_id'
models/customer_games.rb
belongs_to :customer, :foreign_key => 'customer_id'
belongs_to :game, :foreign_key => 'game_id'
在admin / customer.rb中,我有一个(工作)表格,为我提供特定客户的所有游戏的详细信息。我这样做了:
panel "Games and infos of these games for this customer:" do
table_for customer.customer_games do |t|
t.column("Name") { |customer_game| link_to customer_game.game.title, admin_game_path(customer_game.game), target: :blank }
t.column("Partner") { |customer_game| if customer_game.game.partner.name.present?
link_to customer_game.game.partner.name, admin_partner_path(customer_game.game.partner), target: :blank
else
status_tag('Empty')
end
}
t.column("Country") { |customer_game| customer_game.game.country }
end
end
我的问题:我只想在上表中显示合作伙伴所属的合作伙伴IS EQUAL给客户的合作伙伴。
也就是说,如果你在customer_games表中使用games_id和customer_id取一行,如果我去检查与game_id链接的partner_id,然后检查与customer_id相关联的partner_id,如果它们相等,则此游戏可以出现在我的桌子上。
用语言很难解释,对不起。
作为参考,我最后一次尝试我尝试了但它不起作用:
panel "Games and infos of these games for this customer:" do
table_for customer.customer_games.where(game_id.game.partner_id == customer_id.customer.partner_id) do |t|
t.column("Game Name") { |customer_game| link_to customer_game.game.title, admin_game_path(customer_game.game), target: :blank }
t.column("Partner") { |customer_game| if customer_game.game.partner.name.present?
link_to customer_game.game.partner.name, admin_partner_path(customer_game.game.partner), target: :blank
else
status_tag('Empty')
end
}
t.column("Country") { |customer_game| customer_game.game.country }
end
end
答案 0 :(得分:1)
考虑客户中的范围定义,定义游戏和客户之间的共享合作伙伴关系。您应该在合作伙伴模型中定义has_many :games
关联(上面未提供)
例如customer.rb
has_many :shared_partner_games, :through => :partner, :source => games
然后是你的table_for
:
table_for customer.shared_partner_games
答案 1 :(得分:0)
尝试像这样更改table_for结构
table_for customer.customer_games.where(customer.partner.id == Game.find_by_partner_id(customer.partner.id).partner.id)do | t |
我不确定。,让我知道它是否有效..