Ruby on rails 4 Rails 4多个嵌套表单和强参数

我使用的是rails 4、嵌套表单和强参数

我需要从一个表单更新多个模型

这就是我声明强参数的方式。从父控制器。 关联有很多，并且属于以下顺序：Rundatum->Material->ParticleSize

def rundatum_params
    params.require(:rundatum).permit( :material, :company_id, :material_density, :feed_moisture, :date, :building, :machine, :material_weight, :time_mins, :rate_lb_hr, :mill_amps, :class_amps, :mill_liner, :beater_plate_size, :mill_rpm, :class_rpm, :feeder_type, :feeder_setting, :feeder_aug_diameter, :tlgs_set, :air_pressure, :temp_mill_out, :temp_prod_out, :temp_ambient, 

    materials_attributes: [:id, :name, :density, :msds_url, :moisture, :notes, :_destroy], 

    particle_sizes_attributes: [:id, :screen, :percent_through, :percent_retained, :_destroy])
end

rails服务器的输出为：

Rundatum Load (0.6ms)  SELECT  "rundata".* FROM "rundata"  WHERE "rundata"."id" = $1 LIMIT 1  [["id", 7]]

Unpermitted parameters: particle_sizes_attributes

从一个表单更新多个模型时，声明强参数的方法是什么

---

谢谢

如果您在

材料中嵌套了
ParticleSize
，那么您也应该嵌套参数

def rundatum_params
  params.require(:rundatum).permit( :material, :company_id, :material_density, :feed_moisture, :date, :building, :machine, :material_weight, :time_mins, :rate_lb_hr, :mill_amps, :class_amps, :mill_liner, :beater_plate_size, :mill_rpm, :class_rpm, :feeder_type, :feeder_setting, :feeder_aug_diameter, :tlgs_set, :air_pressure, :temp_mill_out, :temp_prod_out, :temp_ambient, 

  { materials_attributes: [:id, :name, :density, :msds_url, :moisture, :notes, :_destroy, 

  { particle_sizes_attributes: [:id, :screen, :percent_through, :percent_retained, :_destroy] }] })
end

我想这个话题已经有答案了，我明天再查->就是这样！我很惊讶这在互联网上不容易找到。org应该将此添加到强参数示例中。