Accept Merge Request #1543: (feature/delivery_status -> develop)

Merge Request: 智能工厂空模型处理

Created By: @廖丹龙
Reviewed By: @胡尧
Approved By: @胡尧 
Accepted By: @廖丹龙
URL: https://jikimo-hn.coding.net/p/jikimo_sfs/d/jikimo_sf/git/merge/1543

sf_manufacturing/models/product_template.py

@@ -874,8 +874,8 @@ class ResProductMo(models.Model):
             'height': item['model_height'],
             'volume': item['model_long'] * item['model_width'] * item['model_height'],
             'model_file': '' if not item['model_file'] else base64.b64decode(item['model_file']),
-            'model_name': attachment.name,
-            'upload_model_file': [(6, 0, [attachment.id])],
+            'model_name': attachment.name if attachment else None,
+            'upload_model_file': [(6, 0, [attachment.id])] if attachment else None,
             'list_price': item['price'],
             'materials_id': self.env['sf.production.materials'].search(
                 [('materials_no', '=', item['texture_code'])]).id,
@@ -924,6 +924,8 @@ class ResProductMo(models.Model):
         return [(6, 0, process_parameters_ids)]
 
     def attachment_create(self, name, data):
+        if not data:
+            return None
         attachment = self.env['ir.attachment'].create({
             'datas': base64.b64decode(data),
             'type': 'binary',