Carrierwave Cloudinary集成Ruby on Rails

gem 'carrierwave'
gem 'cloudinary'

class ImageUploader < CarrierWave::Uploader::Base
  include Cloudinary::CarrierWave

  # 上传文件的存储方式，这里使用Cloudinary
  storage :cloudinary

  # 可选：定义图片的处理方式，例如缩放、裁剪等
  process :resize_to_fit => [800, 800]

  # 可选：定义图片的版本，例如原图、缩略图等
  version :thumbnail do
    process :resize_to_fit => [200, 200]
  end

  # 可选：定义允许上传的文件类型
  def extension_whitelist
    %w(jpg jpeg gif png)
  end
end

class Product < ApplicationRecord
  mount_uploader :image, ImageUploader
end

<%= form_with(model: @product, local: true) do |form| %>
  <!-- 其他表单字段 -->
  <%= form.file_field :image %>
  <%= form.submit %>
<% end %>

class ProductsController < ApplicationController
  def create
    @product = Product.new(product_params)
    if @product.save
      redirect_to @product
    else
      render 'new'
    end
  end

  private
    def product_params
      params.require(:product).permit(:name, :image)
    end
end