我对rails很新,我正在尝试使用Shrine将图像直接上传到S3。我直接上传到S3以完美地工作,但是,当我介绍jquery文件上传并上传图像时,Chrome控制台抛出 this error 对我。我不确定我做错了什么,我似乎无法在网上找到任何解决方案。我知道这是一个预设错误,它可能没有找到缓存链接,但我不知道如何解决它。
编辑:这是通过在路由文件中包含预设代码并将uploads.js中的存储位置更改为正确的位置来解决的。但是,现在,我在尝试上载时回滚的文件存在问题。
我正在使用基于云的ide C9,
这是我的uploads.js文件:
$(document).on("turbolinks:load", function(){
$("[type=file]").fileupload({
add: function(e, data) {
console.log("add", data);
data.progressBar = $('<div class="progress"><div class="determinate"
style="width: 70%"></div></div>').insertBefore("form")
var options = {
extension: data.files[0].name.match(/(\.\w+)?$/)[0], //set the
file extention
_: Date.now() //prevent caching
};
$.getJSON("/autos/upload/cache/presign", options, function(result) {
console.log("presign", result);
data.formData = result['fields'];
data.url = result['url'];
data.paramName = "file";
data.submit()
});
},
progress: function(e, data) {
console.log("progress", data);
var progress = parseInt(data.loaded / data.total * 100, 10);
var percentage = progress.toString() + '%'
data.progressBar.find(".progress-bar").css("width",
percentage).html(percentage);
},
done: function(e, data) {
console.log("done", data);
data.progressBar.remove();
var image = {
id: data.formData.key.match(/cache\/(.+)/)[1], // we have to
remove the prefix part
storage: 'cache',
metadata: {
size: data.files[0].size,
filename: data.files[0].name.match(/[^\/\\]+$/)[0], // IE return full
path
mime_type: data.files[0].type
}
}
form = $(this).closest("form");
form_data = new FormData(form[0]);
form_data.append($(this).attr("name"), JSON.stringify(image))
$.ajax(form.attr("action"), {
contentType: false,
processData: false,
data: form_data,
method: form.attr("method"),
dataType: "json"
}).done(function(data) {
console.log("done from rails", data);
});
}
});
});
我的routes.rb文件包括:
mount ImageUploader::UploadEndpoint => "/images/upload"
mount Shrine.presign_endpoint(:cache) => "/autos/upload/cache/presign"
我有一个模型接受这些图像以及其他名为Autos的字段,这包含在Autos文件中:
include ImageUploader[:image]
我的汽车控制器是:
class AutosController < ApplicationController
before_action :find_auto, only: [:show, :edit, :update, :destroy]
def index
@autos = Auto.all.order("created_at DESC")
end
def show
end
def new
@auto = current_user.autos.build
end
def create
@auto = current_user.autos.build(auto_params[:auto])
if @auto.save
flash[:notice] = "Successfully created post."
redirect_to autos_path
else
render 'new'
end
end
def edit
end
def update
if @auto.update(auto_params[:auto])
flash[:notice] = "Successfully updated post."
redirect_to auto_path(@auto)
else
render 'edit'
end
end
def destroy
@auto.destroy
redirect_to autos_path
end
private
def auto_params
params.require(:auto).permit(:title, :price, :description, :contact, :image, :remove_image)
end
def find_auto
@auto = Auto.find(params[:id])
end
end
答案 0 :(得分:1)
假设您的image_uploader.rb
已定义ImageUploader
类并且假设您的预设端点类似于/autos/upload/cache/presign
,则您的routes.rb
应该具有如此定义的预设路线:< / p>
mount ImageUploader.presign_endpoint(:cache) => '/autos/upload/cache/presign'
我希望路径文件中的这个单一更改会使您能够获得应包含3个键的预设对象:url
,fields
和headers
# GET /autos/upload/cache/presign
{
"url": "https://my-bucket.s3-eu-west-1.amazonaws.com",
"fields": {
"key": "cache/b7d575850ba61b44c8a9ff889dfdb14d88cdc25f8dd121004c8",
"policy": "eyJleHBpcmF0aW9uIjoiMjAxNS0QwMToxMToyOVoiLCJjb25kaXRpb25zIjpbeyJidWNrZXQiOiJzaHJpbmUtdGVzdGluZyJ9LHsia2V5IjoiYjdkNTc1ODUwYmE2MWI0NGU3Y2M4YTliZmY4OGU5ZGZkYjE2NTQ0ZDk4OGNkYzI1ZjhkZDEyMTAwNGM4In0seyJ4LWFtei1jcmVkZW50aWFsIjoiQUtJQUlKRjU1VE1aWlk0NVVUNlEvMjAxNTEwMjQvZXUtd2VzdC0xL3MzL2F3czRfcmVxdWVzdCJ9LHsieC1hbXotYWxnb3JpdGhtIjoiQVdTNC1ITUFDLVNIQTI1NiJ9LHsieC1hbXotZGF0ZSI6IjIwMTUxMDI0VDAwMTEyOVoifV19",
"x-amz-credential": "AKIAIJF55TMZYT6Q/20151024/eu-west-1/s3/aws4_request",
"x-amz-algorithm": "AWS4-HMAC-SHA256",
"x-amz-date": "20151024T001129Z",
"x-amz-signature": "c1eb634f83f96b69bd675f535b3ff15ae184b102fcba51e4db5f4959b4ae26f4"
},
"headers": {}
}
上传开始后,您现在可以在开发者控制台中找到此对象,而不是之前的404 not found
错误。
我认为你非常接近解决方案。在create/update
操作中,使用auto_params[:auto]
代替auto_params
答案 1 :(得分:0)
我认为您遵循gorails直接上传s3的教程 在您的gem文件中,确保使用正确的Roda版本 gem'roda',“〜> 2.29.0”