Add rota-builder summary to detail view with weeks, shifts, and workers count

djangorota/rota/models.py

@@ -55,14 +55,34 @@ class RotaSchedule(models.Model):
 			)
 
 		# compute weeks_to_rota (integer number of weeks)
-		delta = self.end_date - self.start_date
-		weeks_to_rota = max(1, int(delta.days // 7))
+		# Prefer an explicit value stored in `self.options['weeks']` (set by
+		# the rota edit form). If absent, fall back to deriving from the
+		# stored end_date (backwards compatible).
+		opts_preview = dict(self.options or {})
+		weeks_opt = None
+		if "weeks" in opts_preview:
+			try:
+				weeks_opt = int(opts_preview.get("weeks"))
+			except Exception:
+				weeks_opt = None
+		if weeks_opt is not None:
+			weeks_to_rota = max(1, weeks_opt)
+		else:
+			delta = self.end_date - self.start_date
+			weeks_to_rota = max(1, int(delta.days // 7))
 
 		# Build kwargs for RotaBuilder from any explicit builder args stored in
 		# `self.options` (kept for backward compatibility), and treat the
 		# remaining keys as constraint options which should map to
 		# `RotaConstraintOptions`.
 		opts = dict(self.options or {})
+		# Remove 'weeks' from opts before handing to constraint options so
+		# it doesn't cause validation failures in RotaConstraintOptions.
+		if "weeks" in opts:
+			try:
+				opts.pop("weeks")
+			except Exception:
+				pass
 		builder_keys = [
 			"balance_offset_modifier",
 			"ltft_balance_offset",