How to Batch Insert Records which has rich_text with image

Hi, There I would like to insert mutiple images to batch records in has_rich_text as blob. How can I do it, I know how to do it with simple csv file. but how can I do it with images.

There is what I did.

I upload image files. loop images and insert to record

There is error message shows:

undefined method `attachments’ for nil:NilClass

I think I need create new “content” before attach image Please help !!! Thanks

---- model ----

class Product < ApplicationRecord

  has_rich_text :content

---- view -----

<%= form_with url: imports_products_path, method: :post do | form | %>
  <%= form.file_field :images, accept: 'image/png,image/gif,image/jpeg,image/jpg', :multiple => true %>
  <%= form.button "Upload Images", class: "btn-primary" %>
<% end %>

---- controller -----

def imports
    images = params[:images]

    return redirect_to suppliers_path, alert: "No file selected" unless images

    images.each do |image|
      @p = = "UNKNOW"
      @p.Supplier_id = 9999
      @p.Category_id = 0