Changing Path of Download/View File

[Khairunnisah]

I want to change path of download file such as pdf, video, img etc. The path of download file for example accesstomemory.org/uploads/r/atom/9/9/3/.

What php file should I change to do this and where is the location?

[Dan Gillean]

Hi there,

Sorry for the delay. I will ask our developers if they can try to point you to the right files to modify. 

In the meantime, you may find the following documentation page helpful in providing context: 

• https://www.accesstomemory.org/docs/latest/admin-manual/maintenance/data-backup/#uploads-and-downloads
  

This page outlines how the uploads directory is currently typically organized, and why: 

For each uploaded or linked object, AtoM will add a SHA-256 hash of the object and then, to avoid collisions and aid in retrieval, it will create a specific set of subdirectories based on this hash - 3 subdirectories named after the first 3 characters in the hash, followed by a final nested subdirectory named after the remaining hash characters.

I will follow up with further information from our team soon to help you find the relevant code. 

Dan Gillean, MAS, MLIS
AtoM Program Manager
Artefactual Systems, Inc.
604-527-2056

@accesstomemory

he / him

On Tue, Sep 6, 2022 at 3:03 AM Khairunnisah <anrikhai...@gmail.com> wrote:

I want to change path of download file such as pdf, video, img etc. The path of download file for example accesstomemory.org/uploads/r/atom/9/9/3/.

What php file should I change to do this and where is the location?

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[Dan Gillean]

Hi again, 

As noted in the link I shared last response, the uploads directory is typically found just below the root AtoM installation directory - so if you followed our recommended installation instructions, the uploads directory will be found at /usr/share/nginx/atom/uploads. 

If you are trying to move the entire uploads directory, the easiest way to do this without requiring code changes would be to simply use the unix mv command to move it wherever you'd like, and then create a symlink to it from AtoM's root directory. 

If your goal is to change how the uploads directory is organized and how the subdirectories are created, please note the original purpose I listed last time - to avoid collisions: 

For each uploaded or linked object, AtoM will add a SHA-256 hash of the object and then, to avoid collisions and aid in retrieval, it will create a specific set of subdirectories based on this hash - 3 subdirectories named after the first 3 characters in the hash, followed by a final nested subdirectory named after the remaining hash characters.

 Meaning: if you change this, you will need to ensure that you are maintaining unique digital object filenames per repository in some other way to avoid issues. 

If you want to change the way that file paths are generated for new uploads, then I believe the place to look will be the getAssetPath function in lib/model/QubitDigitalObject.php. Here it is in the current stable/2.6.x branch: 

• https://github.com/artefactual/atom/blob/stable/2.6.x/lib/model/QubitDigitalObject.php#L1865-L1911
  

Specifically, I think line 1900 is creating the hashed nested directory path: 

• return '/'.QubitSetting::getByName('upload_dir')->__toString().'/r/'.$repoDir.'/'.$checksum[0].'/'.$checksum[1].'/'.$checksum[2].'/'.$checksum;
  

Good luck!

Dan Gillean, MAS, MLIS
AtoM Program Manager
Artefactual Systems, Inc.
604-527-2056

@accesstomemory

he / him

[Khairunnisah]

Hi Dan, 

I just want to change file for viewing document, video and image. So, I don't wanna change file for uploading and generating file paths.

I already tried to change several file that I suspect to view document. But, it seems I haven't found the right one till now.