Add some common filters to REST API resources that expose collections

[Florian Fuchs]

When Postorius GETs a collection of lists from the REST API, it will in most situations only use a subset (the ones that are set to "advertise in list index"). This is a minor issue as long as the request isn't paginated, but can lead to incorrect item counts when it is.

Example:

GET /<email address hidden>?page=1&count=10

will return all lists within the range [:10] from the database. If there are x unadvertised lists in the result, the page will only show 10 - x results.

I guess the most common way to solve this is for the REST API to accept a number of common filter params which are used in the WHERE clause of the database query. In this case:

GET /<email address hidden>?page=1&count=10&advertised=(0|1|2)

0 - only non-advertised
1 - only advertised
2 - both

[Abhilash Raj (raj-abhilash1)]

This bug has been moved to the new gitlab repo here: https://gitlab.com/mailman/mailman/issues/70