UUID

[pywebdesign]

Here is a migration file for whoever use UUID, I really don't know How to Create an alternate generator to submit, but this could help someone!

class ActsAsFollowerMigration < ActiveRecord::Migration
  def self.up
    create_table :follows, id: :uuid do |t|
      #t.references :followable, :polymorphic => true, :null => false
      #t.references :follower,   :polymorphic => true, :null => false
      t.uuid :follower_id
      t.string :follower_type

      t.uuid :followable_id
      t.string :followable_type

      t.boolean :blocked, :default => false, :null => false
      t.timestamps
    end

    add_index :follows, ["follower_id", "follower_type"],     :name => "fk_follows"
    add_index :follows, ["followable_id", "followable_type"], :name => "fk_followables"
  end

  def self.down
    drop_table :follows
  end
end

[hchood]

FYI, you can also use t.references to set up a polymorphic association if you pass it the type: :uuid option:

    create_table :follows, id: :uuid, force: true do |t|
      t.references :followable, type: :uuid, polymorphic: true, null: false
      t.references :follower, type: :uuid, polymorphic: true, null: false
      # ...
    end

[ngoanpro0207]

Đây là tệp di chuyển dành cho bất kỳ ai sử dụng UUID, tôi thực sự không biết Cách tạo trình tạo thay thế để gửi, nhưng điều này có thể giúp ích cho ai đó!

class ActsAsFollowerMigration < ActiveRecord::Migration
  def self.up
    create_table :follows, id: :uuid do |t|
      #t.references :followable, :polymorphic => true, :null => false
      #t.references :follower,   :polymorphic => true, :null => false
      t.uuid :follower_id
      t.string :follower_type

      t.uuid :followable_id
      t.string :followable_type

      t.boolean :blocked, :default => false, :null => false
      t.timestamps
    end

    add_index :follows, ["follower_id", "follower_type"],     :name => "fk_follows"
    add_index :follows, ["followable_id", "followable_type"], :name => "fk_followables"
  end

  def self.down
    drop_table :follows
  end
end

#45 (comment)

[ngoanpro0207]

#45 (comment)