Rails的控制檯數據庫架構檢查

Question

我是新來的鐵軌/紅寶石，我想知道我怎麼能仔細檢查，如果我的數據庫架構正確建立在軌控制檯

在rails c

ActiveRecord::Base.connection.tables給我的輸出

["schema_migrations", "users", "expense_pictures", "income_pictures", "income_texts", "expense_texts"] 

如何檢查控制檯內是否正確構建了以下模式？

從用戶到IncomePictures和ExpensePictures外鍵。 IncomePictures到ExpensePictures也是外鍵到相應的文本

這裏是我的模型：

class ExpensePicture < ActiveRecord::Base 

    belongs_to :user 
    mount_uploader :image, ImageUploader 
    has_one :expense_text 
end 

class ExpenseText < ActiveRecord::Base 
    belongs_to :expense_pictures 
end 

class IncomePicture < ActiveRecord::Base 
    belongs_to :user 
    mount_uploader :image, ImageUploader 
    has_one :income_text 
end 

class IncomeText < ActiveRecord::Base 
    belongs_to :income_pictures 
end 

class User < ActiveRecord::Base 
    # Include default devise modules. Others available are: 
    # :confirmable, :lockable, :timeoutable and :omniauthable 
    devise :database_authenticatable, :registerable, 
     :rememberable, :validatable 

    has_many :expense_pictures 
    has_many :income_pictures 

end 

Answer 1

您可以db/schema.rb文件檢查。如果您不確定，則可以先運行bundle exec rake db:schema:dump - 此耙路任務從數據庫重新創建schema.rb文件。

根據你的編輯的問題，您應該生成以下遷移：

bundle exec rails g migration add_user_id_to_expense_pictures user:references 
bundle exec rails g migration add_expense_picture_id_to_expense_texts expense_picture:references 
bundle exec rails g migration add_user_id_to_income_pictures user:references 
bundle exec rails g migration add_income_picture_id_to_income_texts income_picture:references 

，並與bundle exec rake db:migrate運行它們。

此外，您的一些關聯設置不正確。它應該是：

class ExpenseText < ActiveRecord::Base 
    belongs_to :expense_picture 
end 

和

class IncomeText < ActiveRecord::Base 
    belongs_to :income_picture 
end 

Answer 2

我想你可以通過this link