Backend migration plugin doesn't work

Plugins
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#1

Hi,

I have started with the development of plugins in Baserow. First of all I have followed the FieldType example tutorial, and once I have added and modified the corresponding files in the backend, I perform the migration, as I have created a new model.

However, once I have included everything and I use Baserow, it shows me an error when creating that type of field, so I understand that the migration of the backend does not occur well because it does not find certain parameters.

Screenshot 2022-07-26 172409
Screenshot 2022-07-26 172409719×585 63.5 KB

The main objective we have is to add fields, which are capable in the backend of running some Python function/script, and capable of extracting information from certain rows in the form of a list (file).

I would appreciate a little help on how to make the migration and get things working in the backend to be able to move forward.

Thanks!

#2

The guides were only tested on a linux operating system so you might hit some oddities like this using windows etc.

My first thought is if you see the log line:

Command given was C:/Program Files/Git/baserow.sh

This looks very wrong, i’m thinking for some reason when you execute:
docker-compose run my-baserow-plugin /baserow.sh backend-cmd manage makemigrations

Your shell is replacing /baserow.sh with C:/Program Files/Git/Baserow.sh for some reason. I’m not too familiar with mingw64 etc, but perhaps adding quotes in somewhere would help and prevent this expansion?

docker-compose run my-baserow-plugin "/baserow.sh backend-cmd manage makemigrations"

Another work around you could try is:

  1. Launch the dev environment
    docker-compose -f docker-compose.dev.yml up -d --build
  2. Exec into the backend container manually
    docker exec -it my-baserow-plugin -u baserow_docker_user /bin/bash
  3. Manually activate the virtual env
    source /baserow/venv/bin/activate
  4. cd to the Baserow backend folder:
    cd /baserow/backend
  5. Now hopefully here you can run normal django management commands:
    ./baserow makemigrations

Please note i haven’t tested the above so there might be some typos / issues, please let me know and we’ll get it all working :slight_smile:

#3

I have succeeded in running the first method but no migrations are detected although I have made changes in the backend/

migrations2
migrations21358×626 88.5 KB

Regarding the second method, when I execute the second step, the message I get is:

OCI runtime exec failed: exec failed: container_linux.go:380: starting container process caused: exec: "-u": executable file not found in $PATH: unknown

Do you know where it could come from?
I think in the first method I am close to obtain it but there must be something missing.

Thank you

#4

Sorry for the incorrect commands, could you instead try?

docker-compose -f docker-compose.dev.yml run --rm my-baserow-plugin backend-cmd manage makemigrations
docker-compose -f docker-compose.dev.yml run --rm my-baserow-plugin backend-cmd manage migrate