[Dicussion]: Possible to use formula parser as a backend library?

[dberardo-com]

I see a "formulas" folder in the code:

• is it possible to extract the formula parser logic as an "own package" or does it share dependencies with the rest of the application?
• would it be possible to use the formula parser for some backend only applications, without the need of a web browser frontend ?

[pro-odoo]

Hello,

For now, the formula parser logic is linked to others parts of the application, such as the list/definitions of functions in order to compile their arguments. It would require a little work to extract completely the parser, but it's possible.

I didn't try but I think it would be possible to use o-spreadsheet for backend application. You can import helpers from o-spreadsheet and use the parser from there.

[dberardo-com]

i think i will give it a try. if it is just a matter of moving dependencies around (as in moving files and folders) then that should not be a problem, but if it depends on "owl", which is a frontend library, then it is not possible.

I understand that this is not the case, right ?

[pro-odoo]

owl is a frontend library but can be used in the backend. While the App of owl is not mounted, it should be good.

[dberardo-com]

makes sense. is there any good place (doc / code / type definitions) where you would advise getting started to understand the parser's logic ?

i would like to make an initial assessment whether it would make sense to run it as server-side module

[rrahir]

Complementary information, we tried to install the library as a backend (full nodejs app) and it cannot run as it is. the data model is relying on the owl library as well, which simply cannot run on a nodejs server because it uses the web API. Sorry for misleading you. However, we are currently considering different approaches to make the lib backend-only asap.

In the meantime, the whole parsing logic is, as @pro-odoo mentioned, related to other parts of the code, but the main logic is in https://github.com/odoo/o-spreadsheet/blob/saas-16.2/src/formulas/parser.ts.

I think you could easily rebundle the parsing on your own by extracting that file and the imports it requires.

[dberardo-com]

thanks for the reply. Is there any update on this matter ?

[rrahir]

We have are not currently working on the possibility to make the lib run as a node application. As mentionned in my previous message, you can easily rebundle the parsing by yourself.