How to filter API request by many-to-many field?

[tim]

I have 2 custom entities:

- CCourse
- CLecturers (don't mind plural)

They are connected as many-to-many.

Querying for `/api/v1/CLecturers` give me all lecturers. However if I do `/api/v1/CLecturers?where[0][type]=equals&where[0][attribute]=cCourseId&where[0][value]=81cd2999-c163-4cfd-b8ed-3eb83e04594c` Im' getting:

> WARNING: (400) Not existing attribute 'cCourseId' in where. :: GET /CLecturers ::

If I do `/api/v1/CLecturers?where[0][type]=equals&where[0][attribute]=courseId&where[0][value]=81cd2999-c163-4cfd-b8ed-3eb83e04594c` I get:

> WARNING: (400) Not existing attribute 'courseId' in where. :: GET /CLecturers ::

What am I doing wrong?

[yuri]

For an example, you can check how the frontend performs a search by many-to-many field.

Note that this is from v9.0, whereGroup => where, attributesSelect => select for previous versions. We introduces aliases for some GET parameters to prevent false positive firewalls checks.




In docs: https://docs.espocrm.com/development...-notlinkedwith

I recommend to use a JSON to pass search parameters. It's more convenient.