问添加属性belongs_to模型

EN

class Team < ActiveRecord::Base
  attr_accessible :city, :name, :division_id
  belongs_to :divison
  has_many :players
end

class Division < ActiveRecord::Base
  attr_accessible :name
  has_many :teams
end

create_table :teams do |t|
  t.string :name
  t.string :city
  t.integer :division_id
  t.foreign_key :division, dependent: :delete

  t.timestamps
end

@teams.each do |team|
    team.division = Division.find(team.division_id)
end