File overwrite management if there is already one with the same name

[nobady90]

Q	A
Symfony Version	3.3.*
VichUploader Bundle Version	1.6

Support Question

I'm looking for a way to avoid overwriting a file when the user loads a file with the same name as a file already present and uploaded to the server.

To do this, however, I would like the user not to notice anything, so without changing the name of the file that will be loaded.

I'm trying to do it through the Namers but I do not think there is way.

Practically:

1. the user uploads a file with the same name equal to another file already loaded and present on the server.
2. during loading the original name is changed with a random identifier but all in Back-End. (for example using the symfony UploadedFile)
3. the user will see the file name equal to the loaded one without noticing any difference.

It's possible?
Thank you all.

[garak]

OrignameNamer is already providing such feature: it adds a uniqid() to client's original name.

[nobady90]

Thank's @garak, I solved using both uniqid () saving it in a slug column, and the original name so as to show it to the user. (which at that point will not notice anything)
I close this issue, good work!

[DhiaDjobbi]

File Namer is the solution for this

At the moment there are several available namers:

• Vich\UploaderBundle\Naming\UniqidNamer
  

• Vich\UploaderBundle\Naming\OrignameNamer
  

• Vich\UploaderBundle\Naming\PropertyNamer
  

• Vich\UploaderBundle\Naming\HashNamer
  

• Vich\UploaderBundle\Naming\Base64Namer
  

• Vich\UploaderBundle\Naming\SmartUniqueNamer
  

• Vich\UploaderBundle\Naming\SlugNamer
  

I personally use HashNamer with MD5:

        prodimage:
            uri_prefix: /prodimages
            upload_destination: '%kernel.project_dir%/public/prodimages'
            namer:
                service: Vich\UploaderBundle\Naming\HashNamer
                options: { algorithm: 'md5', length: 30 }

https://github.com/dustin10/VichUploaderBundle/blob/master/docs/namers.md