Question

如果条件为真，我如何跳过对nested_attribute的验证

aquarium.rb

 has_many :fishes
 accepts_nested_attributes_for :fishes,

fish.rb

belongs_to :aquarium 
validates :ratio, :numericality => { :greater_than => 0 }, if: :skip_this_validation

然后在aquariums_controller.rb

def some_action
    @aquarium = Aquarium.new(aqua_params)
    @aquarium.skip_this_validation = true  # i know that this is not valid
    #must skip validation for ratio and then save to DB
end

Answer 1

您只需在方法中添加条件并检查conditional validation

即可

class Fish < ActiveRecord::Base
  validates :ratio, :numericality => { :greater_than => 0 }, if: :custom_validation

  private

  def custom_validation
    # some_condition_here
    true
  end
end

Answer 2

@aquarium.save(validate: false)

我相信会在模型上跳过验证。

Answer 3

<强> aquarium.rb

has_many :fishes
accepts_nested_attributes_for :fishes,
attr_accessor :skip_fishes_ratio_validation

<强> fish.rb

belongs_to :aquarium 
validates :ratio, :numericality => { :greater_than => 0 }, unless: proc { |f| f.aquarium&.skip_fishes_ratio_validation }

然后在 aquariums_controller.rb

def some_action
  @aquarium = Aquarium.new(aqua_params)
  @aquarium.skip_fishes_ratio_validation = true
  @aquarium.save
end

如果条件为真，则Rails对嵌套属性进行跳过验证

3 个答案: