feat(filters): Introduce DateInDateRange filter for Postgres

This commit introduces a new filter, `DateInDateRange`, specifically designed to work with PostgreSQL's DateRange fields. It allows filtering for records where a given date is contained within the date range field.

Key changes:
- Renamed `DateRangeDateFilter` to `DateInDateRange` for improved clarity and to better reflect its purpose.
- Added documentation for the new filter in `docs/src/filters/date.md`.
- Updated the main `README.md` to include the new filter.

Additionally, the CI test matrix has been updated to streamline testing and drop support for older, unsupported versions:
- Removed Python 3.9 and 3.10 from the test matrix.
- Removed Django 3.2 from the test matrix.

Author: saxix

.github/workflows/test.yml

@@ -57,8 +57,8 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        python: [ "3.13", "3.10", "3.9" ]
-        django: [ "52",  "42", "32"]
+        python: [ "3.13", "3.11"]
+        django: [ "52",  "42"]
         exclude:
           - django: 32
             python: 3.13

README.md

@@ -27,6 +27,7 @@ Filters
   * ChoicesFieldComboFilter
 * Dates
   * DateRangeFilter
+  * DateInDateRange
 * Radio
   * AllValuesRadioFilter
   * RelatedFieldRadioFilter

docs/src/filters/date.md

@@ -17,3 +17,10 @@ Filter dates. It allows complex filter like:
 | 2000-01-02..2000-12-02           | between 2000-01-02 and  2000-12-02 |
 | <> 2000-12-02                    | not equal to 2000-01-02            |
 | 2000-01-01,2000-02-01,2000-03-01 | list of values                     |
+
+
+
+## DateInDateRange
+
+This filter is intended to be used spcifically for Postgres DateRange field and it
+inteded to return records where the provided value is inside the target field range.

src/adminfilters/dates.py

@@ -12,7 +12,7 @@
 from .value import ValueFilter
 
 
-class DateRangeDateFilter(ValueFilter):
+class DateInDateRange(ValueFilter):
     lookup_name = "contains"
     input_type = "date"