Request: Select multiple files or directories from File Upload widget

[dnaki]

Hi. I’m using KNIME AP 4.3 and developing a workflow for the web portal.
I want to ask the user to select a directory on their local drive (or alternatively, multiple files within the directory), and the workflow would then upload all files in the directory (or alternatively, all selected files in the directory) so the workflow can process them.

The File Chooser widget looked promising, but it’s limited to selecting files or directories from a remote mountpoint. The File Upload widget allows selecting a file from the user’s local drive, but allows selecting only a single file.

Would it be possible to add options to the File Upload widget to allow for selecting files (note the plural) or folders? If a folder was selected, the files in the folder would optionally be compressed and then sent to the server. Likewise, if multiple files were selected, they would optionally be compressed and sent to the server. It would also be useful to allow to optionally include subfolders.

I note several past forum posts requesting this (or similar) functionality:

Uploading multiple files from same directory for processing

Hi, I’m trying to create a workflow that uploads and processes multiple files from the same directory that’s compatible with the KNIME server. The file upload node allows uploading a single file, but I haven’t been able to loop over each file in the directory and upload everything automatically. What’s the best way to do that? In more detail, the directory will contain a single xls file and multiple SDF’s and the info in the xls file will have to be added to the info in the SDF file, eventuall…

Input node to choose a directory

Hi all, is there a node to allow input of a directory path? The File Upload node (Quickforms) is useful to allow specifying a file name, but I didn't find a way to restrict it to folder names. Is there a way to allow folder selection similar to the browse dialog provided by the List Files / List Remote Files nodes, but that just provides the folder name in a variable (for use in config dialogs of wrapped metanodes)??   Best Jan  

Thanks for considering this.

[ipazin]

Hello @dnaki,

this is already on the list and have noted your request. (Internal reference: WEBP-732)

Someone will update topic once there is news about it.

Br,
Ivan

[sscholz]

Selecting a directory or creating a list of files from a local directory is a really essential feature for productivity on the KNIME portal/server. Is there any chance that we can expect a solution in the near future?
Or is there a work around avoiding the “List files” nodes (which is not working in a KNIME portal environment for local files).
A workaround might be to upload all files (perhaps filtered by a string) from a selected directory into a temporary directory on the server but I also could not find a solution for this.
Or is there a way to use an R script to point to a local directory (i.e. on the PC of the user) and create a list of files? Perhaps the server configuration needs to be adjusted to allow a path to a local PC?
Kind regards
Stefan

[Rokank]

Is there an update with regards to WEBP-732

[r_jain]

Is there any update on this feature?