销售订单添加合同字段，销售订单form页面新增合同page页，优化/api/bfm_process_order/list接口添加合同信息处理。

sf_manufacturing/models/sale_order.py

@@ -190,7 +190,29 @@ class SaleOrder(models.Model):
             'target': 'new',
             'res_id': wizard.id,
         }
+    def create_sale_documents(self, contract_file_name, contract_file):
+        # 创建ir.attachment记录
+        attachment = self.env['ir.attachment'].sudo().create({
+            'name': contract_file_name,
+            'type': 'binary',
+            'datas': contract_file,
+            'res_model': 'sale.order',
+        })
 
+        # 获取默认的文档文件夹
+        workspace = self.env.ref('sf_sale.documents_sales_contracts_folder_1').id
+
+        # 创建 documents.document 记录
+        document = self.env['documents.document'].sudo().create({
+            'name': contract_file_name,
+            'attachment_id': attachment.id,
+            'folder_id': workspace,
+            'res_model': 'sale.order'
+        })
+
+        self.write({
+            'contract_document_id': document.id
+        })
 
 class SaleOrderLine(models.Model):
     _inherit = 'sale.order.line'