Ruby on Rails: Help in multiple image upload using paperclip with different process

I have 3 models: Post, Comment, and Image

(I am using paperclip gem BTW)

What I am trying to achieve is that users can comment on post. Also, if they opt to comment images in the post, they could do so. The relationship looks like this:

For Post

class Post < ApplicationRecord
  belongs_to :user
  has_many :comments, :dependent => :destroy
end

For Comment

class Comment < ApplicationRecord
  belongs_to :user
  belongs_to :post
  has_many :images, :dependent => :destroy
end

and for Image

class Image < ApplicationRecord
  belongs_to :user
  belongs_to :comment
end

The process is that for example, they would like to comment on a post, and would like to attach an image, they could do so by attaching an image to the comment. They could also attach multiple image in one comment.

However, I can't seem to know how to do that. Upon researching, I stumbled this post which upload multiple images in a gallery.

However, it is only two layer model (Gallery and Picture). He makes use of this code in his view and controller:

View

<%= file_field_tag "images[]", type: :file, multiple: true %>

controller

if params[:images]
  params[:images].each { |image|
    @market.pictures.create(image: image)
  }
end

I get on how to do that. But it is different from what I'm trying to achieve. If you can help me, that would be great! Thanks in advance!