Bubble backend loop not working

[jwtsmithson]

Hi,

I’m having trouble using backend workflows to create a loop that runs through a list of files and adds them to the database.

Basic UI for the upload page

I have a multi-upload box where I upload several files to. From here I click the “Save Uploaded Files” button which calls a backend workflow called “Upload”. This workflow takes in 3 values:

• UploadedFiles - List of files (The files in the multi-upload box)
• Iteration - Number (A variable to loop through the list of files)
• Count - Number (The number of files in the multi-upload box)

Calling the backend worflow

The backend workflow settings

The backend workflow then creates the shows using ‘item# iteration’

Creating a database entry using the backend workflow

Before then calling itself again and adding 1 to the “Iteration” variable. This should only occur when iteration is less than count.

Looping the workflow

However this is not quite outputting the correct result. For example, when uploading 2 files instead of just adding 2 files it duplicates the second.

With three uploaded files it goes even more nuts:

I’ve spent too long trying to figure this out and fear its something very simple that I’m missing. Any pointers would be greatly appreciated.

Thanks.

[NoCodePhill]

Shouldn’t you be calling “Upload” again in step 2? What’s the details of the “loop” workflow?

[jwtsmithson]

Thank you my friend you’ve inadvertently helped me figure it out. Upon your query I went to look at the call action and it turns out I was re-calling it on a list of things which was playing havoc with how many times it was running. I’ve switch it to just schedule a regular API workflow and it works a charm.

[contact.info]

Hello,
I’d like to do more or less the same to send several email from a list of users.
I’m wondering what is your “Loop” action in your example. I don’t think there is such an action available in the regular Bubble list of action right ? Is this from an additional plugin ?
Thanks,
Laurent.