juan

juan

Hi,

I am developing an application on phoenix framework v 1.3. I have managed to upload files with exfile. I still do not know how to download the files. Do any of you have a file upload and download function? It would be useful to reuse code.

Thank you !

Showing Posts 1 to 10

dokuzbir

dokuzbir

you can put a link in templates with file path

for example

<%= link "file", to: "/uploads/file.zip" %>

or

   conn
    |> put_resp_content_type("application/zip")
    |> put_resp_header("content-disposition", "attachment; filename=\"file.zip\"")
    |> send_resp(200, "uploads/file.zip")
juan

juan OP

I get the url in the template with <% = exfile_url (@conn, @ user.img)%>. How can I get the url in <% = link" file ", to:" /uploads/file.zip "%>

Thank you!

dokuzbir

dokuzbir

But if file is image you cant download directly with a link. You can manually save.
<%= link "file", to: "#{exfile_url(@conn, @user.img)}" %>

maybe you just want to show image ?
<img src="<%= exfile_url(@conn, @user.img)%>">

you should use that function

conn
    |> put_resp_content_type("application/zip")
    |> put_resp_header("content-disposition", "attachment; filename=\"file.zip\"")
    |> send_resp(200, "uploads/file.zip")

Is that a hobby project?

juan

juan OP

Yes, it is a project to learn. The variable is called img, but it stores images, pdf or docx, it will change the name of the variable to file.

Do I have to put in the controller something like download, to use the code that he gives me?

dokuzbir

dokuzbir

yes you should put that function in controller

juan

juan OP

I try with <% = link" file ", to:" # {exfile_url (@conn, @ user.img)} "%> the browser takes me to another page, but does not download.

I was reviewing the uploads directory and store the files without format, as encrypted

exfile handles the following structure

dokuzbir

dokuzbir

then first you should decrypt it . I dont know how ex_file handles that.

juan

juan OP

Do you have any projects that upload and download files, in which you can see the controller, router, model and templete?

dokuzbir

dokuzbir

Dont try directly hard method. First try without encrypt if it works. Try your chance with encrypt

dokuzbir

dokuzbir

Create a path in router

get "/download", DownloadController, :download

add that function in DownloadController

 def download(conn, %{"file_path" => file_path})
   conn
    |> put_resp_header("content-disposition", "attachment; filename=\"test-file.jpg\"")
    |> send_resp(200, file_path)
  end

and add a link to any page
<%= link "Download", to: download_path(@conn, :download, file_path: exfile_url(@conn, @user.img) %>

Maybe that helps you

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