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方法
A

实例公共方法

assign_attributes(new_attributes)

允许你通过传入一个散列的属性（键与属性名匹配）来设置所有属性。

如果传入的散列对permitted?方法有响应，并且此方法的返回值为false，则会引发ActiveModel::ForbiddenAttributesError异常。

class Cat
  include ActiveModel::AttributeAssignment
  attr_accessor :name, :status
end

cat = Cat.new
cat.assign_attributes(name: "Gorby", status: "yawning")
cat.name # => 'Gorby'
cat.status # => 'yawning'
cat.assign_attributes(status: "sleeping")
cat.name # => 'Gorby'
cat.status # => 'sleeping'
别名：attributes=

来源：显示 | GitHub 

# File activemodel/lib/active_model/attribute_assignment.rb, line 28
def assign_attributes(new_attributes)
  unless new_attributes.respond_to?(:each_pair)
    raise ArgumentError, "When assigning attributes, you must pass a hash as an argument, #{new_attributes.class} passed."
  end
  return if new_attributes.empty?

  _assign_attributes(sanitize_for_mass_assignment(new_attributes))
end

attributes=(new_attributes)

别名：assign_attributes