feat(backend): add not equal (__ne) and not in (__notin) custom lookups

backend/common/apps.py

@@ -5,3 +5,6 @@
 class CommonConfig(AppConfig):
     name = "common"
     verbose_name = _("común")
+
+    def ready(self):
+        import common.lookups  # noqa

backend/common/lookups.py

@@ -0,0 +1,21 @@
+from django.db.models import Field, Lookup
+from django.db.models.lookups import In
+
+
+@Field.register_lookup
+class NotEqual(Lookup):
+    lookup_name = "ne"
+
+    def as_sql(self, compiler, connection):
+        lhs, lhs_params = self.process_lhs(compiler, connection)
+        rhs, rhs_params = self.process_rhs(compiler, connection)
+        params = lhs_params + rhs_params
+        return "%s <> %s" % (lhs, rhs), params
+
+
+@Field.register_lookup
+class NotIn(In):
+    lookup_name = "notin"
+
+    def get_rhs_op(self, connection, rhs):
+        return "NOT IN %s" % rhs

backend/work_organization/api/filtersets.py

@@ -20,7 +20,11 @@ class Meta:
 class SupportWorkingDayFilterSet(django_filters.rest_framework.FilterSet):
     class Meta:
         model = SupportWorkingDay
-        fields = {"id": ["exact", "in"], "user_id": ["exact", "in"], "date": ["exact", "gte", "lte", "year"]}
+        fields = {
+            "id": ["exact", "in"],
+            "user_id": ["exact", "in"],
+            "date": ["exact", "gte", "lte", "year"],
+        }
 
 
 class HolidayFilterSet(django_filters.rest_framework.FilterSet):