ActiveRecord(二)

ActiveRecord 回调

回调

创建对象顺序

class User < ApplicationRecord
  before_validation :beforeValidation
  after_validation :afterValidation
  before_save :beforeSave
  before_create :beforeCreate
  after_create :afterCreate
  after_save :afterSave



  def beforeValidation

  end
  def afterValidation

  end
  def beforeSave

  end
  def beforeCreate

  end
  def afterCreate

  end
  def afterSave
    
  end
end

更新对象顺序

class User < ApplicationRecord
  before_validation :beforeValidation
  after_validation :afterValidation
  before_save :beforeSave
  before_update :beforeUpdate
  after_update :afterUpdate
  after_save :afterSave



  def beforeValidation

  end
  def afterValidation

  end
  def beforeSave

  end
  def beforeUpdate

  end
  def afterUpdate

  end
  def afterSave
    
  end
end

销毁对象顺序

class User < ApplicationRecord
  before_destroy :beforeDestroy
  after_destroy :afterDestroy



  def beforeDestroy

  end
  def afterDestroy

  end
  
end