铁轨 + CouchDb 二进制文件上传到数据库

发布于 2024-10-19 00:58:43 字数 997 浏览 7 评论 0原文

Simple-Stored 基于 CouchPotato 顶部，用于在 Rails 中处理 CouchDb。在尝试将文件上传到 couchdb 时，我们尝试使用 base64、json post，但似乎没有任何效果；我们正在尝试上传到已存储文档的 _attachments 属性。

拥有这样的模型：

class Patient
  include SimplyStored::Couch
end

并在控制器中通过更新操作接收文件

def update
    @patient = Patient.find(params[:id])
    if params[:patient][:_attachments] 
        attachement = params[:patient][:_attachments]
        filedata = attachement.tempfile.read
        data = Base64.encode64(filedata).gsub(/\n/, '')
        type = attachement.content_type
        or_name = attachement.original_filename
        @patient._attachments = {or_name => {'data' => data, 'content_type' => type}}
        @patient.save
        return render :json => @patient._attachments
    end 
end

现在有趣的部分是我可以看到 @ Patient._acttachments 具有文件本身，这就是 .save 之后渲染中返回的内容；但它实际上并没有将其保存在 couchdb 数据库中。

任何想法为什么不进行保存，或者我应该尝试将 _attachment 推送到 couchdb 数据库。？（顺便说一句，它总是返回 500 错误:( ）

原文

Simple-Stored is based on top of CouchPotato for handling CouchDb in rails. While trying to upload files to the couchdb we have tryied using base64, json post and nothing seems to work quite right; we are trying to upload to the _attachments propertie of a document already stored.

Having the model like this :

class Patient
  include SimplyStored::Couch
end

and in the controller while receiving the file trough the update action

def update
    @patient = Patient.find(params[:id])
    if params[:patient][:_attachments] 
        attachement = params[:patient][:_attachments]
        filedata = attachement.tempfile.read
        data = Base64.encode64(filedata).gsub(/\n/, '')
        type = attachement.content_type
        or_name = attachement.original_filename
        @patient._attachments = {or_name => {'data' => data, 'content_type' => type}}
        @patient.save
        return render :json => @patient._attachments
    end 
end

Now the fun part is that I can see that @patient._acttachments has the file itself and that is what is returning in the render after the .save; but it is not actually saving it on the couchdb database.

Any ideas why is not doing the save or should I try to just push the _attachment to the couchdb database. ? (which by the way always returns a 500 error :( )

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笨死的猪 2024-10-26 00:58:43

解决方案非常简单，基于 couchpotato 网站，您实际上不需要将其转换为 base64 这里是代码工作的示例，

if params[:patient][:_attachments] 
            attachement = params[:patient][:_attachments]
            data = attachement.tempfile.read
            type = attachement.content_type
            or_name = attachement.original_filename
            params[:patient][:_attachments] = {or_name => {'data' => data, 'content_type' => type}}
end 
  if @patient.update_attributes(params[:patient]) #blah blah blah

因为值位于 [:patent][:_attachments] 参数中，您只需要将其作为另一个经过测试和工作的参数传递。

此外，您还需要定义您的患者模型，

    property :_attachments

不知道是否需要，但我做到了。

我知道我不应该要钱，但因为我为四个人工作，每小时只有 100 比索..办公室见，

欢呼

，哈哈

the solution it's very simple, based on the couchpotato website, you actually don't need to convert it to base64 here is the example of code working

if params[:patient][:_attachments] 
            attachement = params[:patient][:_attachments]
            data = attachement.tempfile.read
            type = attachement.content_type
            or_name = attachement.original_filename
            params[:patient][:_attachments] = {or_name => {'data' => data, 'content_type' => type}}
end 
  if @patient.update_attributes(params[:patient]) #blah blah blah

since the values are in the [:patient][:_attachments] params, you just need to pass it as another param tested and working.

Also you need to define your patients model as