CODEWITHSUNDEEP
scalaplayframework-2.0
Prateek
Prateek

Reputation: 127

Scala Play 2.0.2 multiple file upload

I am new to Play and scala. My requirement is to provide a browse button where we can select multiple files and upload those files. Here is code I have written:

in the scala.html file:

<input type="file" name="files" multiple="multiple" id="files" size="30">

in the Controller:

def upload = Action(parse.multipartFormData) { request =>
  request.body.file("files").map { picture =>
    import java.io.File
    val filename = picture.filename 
    val contentType = picture.contentType
    picture.ref.moveTo(new File("/tmp/picture"))
    Ok("File uploaded")
  }.getOrElse {
    Redirect(routes.Application.index).flashing(
      "error" -> "Missing file"
    )
  }
}

But I am not able to upload multiple files. Any idea what is the issue here?

Upvotes: 6

Views: 3770

Answers (3)

Tushar Walzade
Tushar Walzade

Reputation: 3809

Very Simple, Just look at this working code -

def uploadAll = Action(parse.multipartFormData) { implicit request =>
  val files = request.body.files.toArray
  files.foreach(file => {
    val filename = Paths.get(file.filename).getFileName
    file.ref.moveTo(Paths.get(s"C:/Users/tusharw/Documents/Play Uploads/$filename"), replace = true)
  })
  Ok("Files uploaded")
}

Or, as per @robor78 said, this is more simpler way -

def uploadAll = Action(parse.multipartFormData) { implicit request =>
  request.body.files map { file =>
    file.ref.moveTo(Paths.get("C:/Users/tusharw/Documents/Play Uploads/"+file.filename), replace = true)
  }
  Ok("Files uploaded")
}

And add multiple to your input. That's it!

Note that, here Paths belongs to java.nio.file.Paths. You may use new File("/somepath") instead.

Upvotes: 0

Arpit Suthar
Arpit Suthar

Reputation: 754

You can try like this as well if you like:

def uploadFiles: Action[AnyContent] { request =>
  val files: Option[Seq[FilePart[TemporaryFile]]] = request.body.asMultipartFormData.map(_.files)
   val filesJavaIO: Option[Seq[File]] = files map { fileSeq => fileSeq map { file =>
    file.ref.moveTo(new File("/tmp/myFiles"))
  }
  }
Ok("File uploaded")

}

Upvotes: 1

Omar Wagih
Omar Wagih

Reputation: 8732

First of all you do not need 

="multiple"

This works equivalently 

<input type="file" name="files" multiple id="files" size="30">

To load in multiple files, when defining your form must have the attribute 

enctype="multipart/form-data"

For example, if using the helpers

@helper.form(action = routes.MyController.submit(), 'enctype -> "multipart/form-data", 'id -> "myform")

or if you're not

<form action=... enctype="multipart/form-data" id="myform">

In your controller you want to try something like this (for Java, I'm sure its similar in Scala)

//Get all files bound to the form when submitted 
List<FilePart> plate_files = request().body().asMultipartFormData().getFiles();
//Get files from a specific name or id
FilePart myfile = request().body().asMultipartFormData().getFile("files");

Then you can use these the iterate through the FilePart objects

Hopefully its similar in scala

Cheers

Upvotes: 3

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