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

djangorota/rota/forms.py

@@ -441,6 +441,77 @@ class RotaScheduleForm(forms.ModelForm):
             self.fields["end_date"].initial = end_date
         return cleaned
 
+    def save(self, commit=True):
+        """Save the RotaSchedule and persist dynamic `opt__*` fields into
+        `instance.options`.
+
+        This persists both typed constraint option fields (created from
+        RotaConstraintOptions) and the small set of builder-argument fields
+        (created in __init__). For structured fields we attempt to parse JSON
+        textareas into Python objects.
+        """
+        instance = super().save(commit=False)
+
+        opts = instance.options or {}
+
+        # Persist typed constraint option fields using inferred defaults map
+        try:
+            defaults = getattr(self, "_constraint_defaults", {}) or {}
+        except Exception:
+            defaults = {}
+
+        for key, default in defaults.items():
+            field_name = f"opt__{key}"
+            if field_name in self.cleaned_data:
+                val = self.cleaned_data[field_name]
+                if isinstance(default, (list, dict)):
+                    # JSON textarea
+                    try:
+                        parsed = json.loads(val) if val is not None and val != "" else []
+                    except Exception:
+                        parsed = val
+                    opts[key] = parsed
+                else:
+                    if val == "" or val is None:
+                        opts[key] = None
+                    else:
+                        opts[key] = val
+
+        # Persist any remaining opt__ fields (builder args and others)
+        for fname, val in self.cleaned_data.items():
+            if not fname.startswith("opt__"):
+                continue
+            key = fname[5:]
+            if key in defaults:
+                # already handled
+                continue
+            v = val
+            # Try to parse JSON-like strings into structures
+            if isinstance(v, str):
+                s = v.strip()
+                if s.startswith("[") or s.startswith("{"):
+                    try:
+                        v = json.loads(v)
+                    except Exception:
+                        pass
+            opts[key] = v
+
+        # Persist the top-level 'weeks' value from the form into options so
+        # the builder can prefer this explicit value instead of deriving it
+        # from end_date. Do not persist end_date itself here.
+        try:
+            weeks_val = self.cleaned_data.get("weeks")
+            if weeks_val is not None:
+                opts["weeks"] = int(weeks_val)
+        except Exception:
+            pass
+
+        instance.options = opts
+
+        if commit:
+            instance.save()
+        return instance
+
 
 class WorkerSelfServiceForm(forms.ModelForm):
     """Small form exposed to workers via tokenized links so they can set