ruby-on-rails - Ruby on Rails - 是否可以通过/app/assets/images 中的表单保存图像？

Question

我正在为一家销售二手车的小商店开发一个小型 Rub​​y on Rails 应用程序。该站点包含一个包含所有可用汽车的列表，其中包括汽车的图像。商店里最多有 20 辆车。

我读到将图像直接保存在数据库中不是最佳做法，最好使用 Amazon Web Services 等云存储服务存储文件，但我认为小型网站不需要这样的服务一次最多可显示 20 张图像。

我的想法是将图像保存在 /app/assets/images .员工将通过表格上传汽车的信息和图像。是否可以在文件夹中上传和保存图片/app/assets/images通过 Rails 中的表单？

Answer 1

As @Sergio already mentioned about assets folder and AWS S3 service.

AWS 很好，但仅限于 1 年免费套餐和最多 5GB。

云图像存储的替代解决方案是 Cloudinary .终身免费 <10GB，包括带宽， Link: How to use in Rails samples

Cloudinary 还在幕后使用 AWS(S3) 服务!

#Gemfile
gem 'cloudinary'
gem 'carrierwave'


# config/initializers/cloudinary.rb, if not exist create the file
# make sure to fill api keys!!!
Cloudinary.config do |config|
  config.cloud_name = ....
  config.api_key    = ....
  config.api_secret = ....
  config.cdn_subdomain = false
end


# model/image.rb in my case.
class Image < ActiveRecord::Base
    mount_uploader :image, ImageUploader
end


# app/uploaders/image_uploader.rb
class ImageUploader < CarrierWave::Uploader::Base

    include CarrierWave::MiniMagick
    include CarrierWave::ImageOptimizer
    include Cloudinary::CarrierWave

    process :convert => 'png'
    # process :tags => ['team_registration']
    # process :resize_to_fill => [300, 300, :north]

    def store_dir
        # "images/#{model.class.to_s.underscore}/#{model.team_name}"
        "images/car_images/"
    end

    def public_id
        "yr_domain_name_here/car_images/#{model.team_name}"
    end  

    def cache_dir
        "/tmp/cache/#{model.class.to_s.underscore}"
    end

    def filename
        "#{model.team_name}_#{model.game.title}" + ".png" if original_filename.present?
    end

    def content_type_whitelist
        /image\//
    end

    def extension_white_list
        %w(jpg jpeg gif png)
    end

end