新增

app/src/doctor_workstation/ui/pages/prescriptions.py

@@ -68,6 +68,39 @@ def _truthy(value: Any) -> bool:
     return bool(value)
 
 
+def _row_mapping(value: Any) -> dict[str, Any]:
+    """Return only fields actually supplied by an API row when possible."""
+
+    if isinstance(value, Mapping):
+        return dict(value)
+    raw = getattr(value, "raw", None)
+    if isinstance(raw, Mapping) and raw:
+        return dict(raw)
+    fields = getattr(value, "__dataclass_fields__", {})
+    return {
+        name: getattr(value, name, None)
+        for name in fields
+        if name != "raw"
+    }
+
+
+def merge_prescription_detail(row: Any, detail: Any) -> dict[str, Any]:
+    """Match the admin editor's ``{...listRow, ...detail}`` state merge."""
+
+    merged = _row_mapping(row)
+    merged.update(_row_mapping(detail))
+    # Repository models retain the original API row in ``raw`` and expose
+    # canonical alias fields (for example ``patient_phone`` -> ``phone``) on
+    # the dataclass.  Add those aliases without letting an omitted detail field
+    # overwrite a list-only audit/void value with its model default.
+    for source in (detail, row):
+        fields = getattr(source, "__dataclass_fields__", {})
+        for name in fields:
+            if name != "raw" and name not in merged:
+                merged[name] = getattr(source, name, None)
+    return merged
+
+
 def prescription_status(row: Any) -> tuple[str, str]:
     """Return the admin audit-column status; void state has its own column."""
 
@@ -730,7 +763,11 @@ class PrescriptionsPage(QWidget):
             or not can_edit_or_delete(row)
         ):
             return
-        self._load_detail(row, self._open_editor, message="正在准备编辑处方…")
+        self._load_detail(
+            row,
+            lambda detail: self._open_editor(merge_prescription_detail(row, detail)),
+            message="正在准备编辑处方…",
+        )
 
     def _open_editor(self, detail: Any) -> None:
         dialog = PrescriptionEditorDialog(