[IMP] resource_booking: get_intervals

Now we can get intervals of an empty booking,
by specifying the needed values, including the booking type.

resource_booking/models/resource_booking.py

@@ -624,7 +624,7 @@ def _get_available_slots(self, start_dt, end_dt):
                 test_start += slot_duration
         return result
 
-    def _get_intervals(self, start_dt, end_dt, combination=None):
+    def _get_intervals(self, start_dt, end_dt, combination=None, type=None):
         """Get available intervals for this booking,
         based on the calendar of the booking type
         and the calendar(s) of the relevant resource combination(s)."""
@@ -638,8 +638,10 @@ def _get_intervals(self, start_dt, end_dt, combination=None):
             analyzing_booking=booking_id, exclude_public_holidays=True
         )
         # RBT calendar uses no resources to restrict bookings
-        if booking.type_id:
-            result = booking.type_id.resource_calendar_id._work_intervals_batch(
+        if not type:
+            type = booking.type_id
+        if type and len(type) == 1:
+            result = type.resource_calendar_id._work_intervals_batch(
                 start_dt, end_dt
             )[False]
         else:

resource_booking/models/resource_booking_combination.py

@@ -87,7 +87,7 @@ def _get_intervals(self, start_dt, end_dt):
                 if not combination_intervals:
                     break  # Can't restrict more
                 calendar = combination.forced_calendar_id or res.calendar_id
-                # combination_intervals &= calendar._work_intervals(start_dt, end_dt, res)
+                # Get available intervals (see resource_calendar.py)
                 combination_intervals &= calendar._work_intervals_batch(
                     start_dt, end_dt, res
                 )[res.id]