ExactFilter generate an array on the OpenApi doc

[johndodev]

API Platform version(s) affected: 4.2.5

Description
By copy/pasting the code on the doc here : https://api-platform.com/docs/core/doctrine-filters/#exact-filter
it result in an array on the doc :

In my real case, where I want to search on an enum field (string in database, enum in symfony entity), when I search with a possible value, it actually works, but the query string include the [] in the query, which is not ok for production.
https://api.url.com/foo?page=1&itemsPerPage=30&type%5B%5D=bar

If I try to fix that with "schema" (because as it's an enum, I'd like to have a select in the doc, not an input text), it get worse : I can select a value, but it result in a 422 ConstraintViolation (Cette valeur doit être l'un des choix proposés)

and I did not succeeded to make the query parameter not an array.

Also, some links in the doc leads to nothing, like

• the "new search filters" here: https://api-platform.com/docs/core/doctrine-filters/#exact-filter
• links here: https://api-platform.com/docs/core/doctrine-filters/#built-in-new-search-filters-api-platform--42

[johndodev]

I made the openapi doc ok by adding "openApi" in my QueryParameter

I don't know if it's assumed / necessary / .. as the example in the doc is not an array, but is not mentioning anything about that https://api-platform.com/docs/core/doctrine-filters/#exact-filter

[soyuka]

Interesting, my guess is that castToArray is actually true on the parameter, could you screenshot the profiler for this? Indeed by overriding the openapi parameter we don't change it manually therefore its working.. This is looking like a bug I'm transfering this to core.

[guliano]

I think the reason is here:
https://github.com/api-platform/core/blob/main/src/Doctrine/Common/Filter/OpenApiFilterTrait.php#L24-L27

I have similiar problem with PartialSearchFilter
When using it with not recommended method (#[ApiFilter]) in the doc it generates single value for parameter. But if I use recommended method using parameters, then in the docs I see array values

[johndodev]

could you screenshot the profiler for this?

@soyuka Sorry I didn't get the mail notification for your message. I'll try to do that next week if still necessary.

[soyuka]

@guliano is there a fix needed for this?

[guliano]

At the moment, I am not using the recommended method and have stuck with the old method. Ideally, PartialFilter, ExactFilter, and even other filters would have an option to enable or disable multiple values.