我不能使用神社播种我的图像,不像载波,下面的代码不起作用。
Profile.create! id: 2,
user_id: 2,
brand: "The Revengers",
location: "Azgaurd",
phone_number: "send a raven",
image_data: File.open(Rails.root+"app/assets/images/seed/thor.png")
我也试过
image_data: ImageUploader.new(:store).upload(File.open(Rails.root+"app/assets/images/seed/thor.png"))
但它返回
JSON::ParserError in Profiles#show
743: unexpected token at '#<ImageUploader::UploadedFile:0x007fd8bc3142e0>'
有神社吗?我似乎无法在任何地方找到它。
shrine.rb
require "cloudinary"
require "shrine/storage/cloudinary"
Cloudinary.config(
cloud_name: ENV['CLOUD_NAME'],
api_key:ENV['API_KEY'],
api_secret:ENV['API_SECRET'],
)
Shrine.storages = {
cache: Shrine::Storage::Cloudinary.new(prefix: "cache"), # for direct
uploads
store: Shrine::Storage::Cloudinary.new(prefix: "store"),
}
profile.rb
class Profile < ApplicationRecord
include ImageUploader[:image]
belongs_to :user
has_and_belongs_to_many :genres
scoped_search on: [:brand]
end
image_uploader.rb
class ImageUploader < Shrine
end
答案 0 :(得分:3)
使用Shrine
,模型上的附件属性(例如image_data
)(例如Profile
)是数据库中的文本列(您可以将其定义为json
或jsonb
。现在应该很清楚,此列不能接受File
对象(您尝试这样做)。
首先,您需要使用上传器(例如ImageUploader
)在您配置的某个Shrine存储中上传目标文件(例如:cache
或:store
):
uploader = ImageUploader.new(:store)
file = File.new(Rails.root.join('app/assets/images/seed/thor.png'))
uploaded_file = uploader.upload(file)
这里上传者的主要方法是#upload
,它在输入上采用类似IO的对象,并在输出上返回上传文件(ImageUploader::UploadedFile
)的表示。
此时,您已掌握上传的文件。现在模型(Profile
)只需要在其附件属性列(image_data
)中显示上传文件的json表示,如下所示:
Profile.create! id: 2,
user_id: 2,
brand: "The Revengers",
location: "Azgaurd",
phone_number: "send a raven",
image_data: uploaded_file.to_json