Skipping Validations in Ruby On Rails
当模型划分的足够好的时候，下面的技术应该用不上。
Skip All Validations
def create
@product = Product.new(product_params)
if @product.save(validate: false)
redirect_to products_path, notice: "#{@product.name} has been created."
else
render 'new'
end
end
def update
@product = Product.find(params[:id])
@product.attributes = product_params
if @product.save(validate: false)
redirect_to products_path, notice: "The product \"#{@product.name}\" has been updated. "
else
render 'edit'
end
end
Skipping Individual Validations
class Product < ActiveRecord::Base
validates :name, presence: true, uniqueness: true, unless: :skip_name_validation
validates :price, presence: true, numericality: { greater_than: 0 }, unless: :skip_price_validation
attr_accessor :skip_name_validation, :skip_price_validation
end
def create
@product = Product.new(product_params)
@product.skip_name_validation = true
if @product.save
redirect_to products_path, notice: "#{@product.name} has been created."
else
render 'new'
end
end
def update
@product = Product.find(params[:id])
@product.attributes = product_params
@product.skip_price_validation = true
if @product.save
redirect_to products_path, notice: "The product \"#{@product.name}\" has been updated. "
else
render 'edit'
end
end
