diff --git a/yuthon_ai_agent/models/ai_report_template.py b/yuthon_ai_agent/models/ai_report_template.py
index 14fbe9ccb..2272fd5ba 100644
--- a/yuthon_ai_agent/models/ai_report_template.py
+++ b/yuthon_ai_agent/models/ai_report_template.py
@@ -225,6 +225,34 @@ class AiReportTemplate(models.Model):
         if self.model_id:
             self.model_name = self.model_id.model
 
+    @api.onchange('field_ids')
+    def _onchange_field_ids(self):
+        if self.field_ids:
+            self.field_list = json.dumps([f.name for f in self.field_ids], ensure_ascii=False)
+            self.field_labels = json.dumps(
+                {f.name: f.field_description for f in self.field_ids},
+                ensure_ascii=False
+            )
+
+    # ===== create / write =====
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            if vals.get('model_id') and not vals.get('model_name'):
+                model = self.env['ir.model'].browse(vals['model_id'])
+                vals['model_name'] = model.model
+            if vals.get('field_ids'):
+                self._sync_field_list_from_ids(vals)
+        return super().create(vals_list)
+
+    def write(self, vals):
+        if vals.get('model_id') and 'model_name' not in vals:
+            model = self.env['ir.model'].browse(vals['model_id'])
+            vals['model_name'] = model.model
+        if vals.get('field_ids'):
+            self._sync_field_list_from_ids(vals)
+        return super().write(vals)
+
     @api.model
     def _sync_field_list_from_ids(self, vals):
         import json