无法允许参数

Question

I'm trying to use active storage to to attach an image file to my photo model, but no matter what I try I get an error saying that the "image_file" is not permitted. I've found several other identical questions on Stack Overflow that are unanswered. Any advice would be greatly appreciated.

Answer 1

Create ActiveStorage tables

rails active_storage:install

Add to Model

class Photo < ApplicationRecord
  has_one_attached :image_file
end

Controller (permit:image_file)

def photo_params
  params.require(:photo).permit(:image_file)
end

Javascript for Direct Upload

//= require activestorage

Add Direct Upload to View

<%= f.file_field :image_file, class: 'form-control-file', direct_upload: true, required: true %>

Answer 2

When I hit the byebug I entered "params" which returned permitted: false but I should have entered "photo_params which returns permitted: true