相关疑难解决方法(0)

class Guardian < ActiveRecord::Base
  has_many :patients
  has_one :user, as: :profile
  accepts_nested_attributes_for :user
end


class User < ActiveRecord::Base
  belongs_to :profile, :polymorphic => true

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
end

用户迁移

class DeviseCreateUsers < ActiveRecord::Migration
  def change
    create_table(:users) do |t|
      ## Database authenticatable
      t.string :email,              :null => false, :default => ""
      t.string :encrypted_password, :null => false, :default => ""
      t.string :username, :null => false
      t.string :address
      t.integer :age
      t.string :gender
      t.string :name
      t.integer :profile_id
      t.string :profile_type

      ## Recoverable
      t.string   :reset_password_token …