Template bug

modules/purchase_trade/invoice.py

@@ -1,5 +1,7 @@
 from decimal import Decimal, ROUND_HALF_UP
 from datetime import date as dt_date
+import os
+from pathlib import Path
 
 from sql import Literal
 from sql.conditionals import Case
@@ -10,6 +12,7 @@ from trytond.pool import Pool, PoolMeta
 from trytond.modules.purchase_trade.numbers_to_words import amount_to_currency_words
 from trytond.exceptions import UserError
 from trytond.transaction import Transaction
+from trytond.tools import file_open
 from trytond.modules.account_invoice.invoice import (
     InvoiceReport as BaseInvoiceReport)
 from trytond.modules.sale.sale import SaleReport as BaseSaleReport
@@ -1849,14 +1852,32 @@ class ReportTemplateMixin:
             return f'{default_prefix}/{template}'
         return template
 
+    @classmethod
+    def _load_report_content(cls, report_path):
+        file_name = report_path.replace('/', os.sep)
+        try:
+            with file_open(file_name, mode='rb') as fp:
+                return fp.read()
+        except FileNotFoundError:
+            modules_dir = Path(__file__).resolve().parent.parent
+            path = modules_dir.joinpath(*report_path.split('/'))
+            try:
+                return path.read_bytes()
+            except FileNotFoundError:
+                raise UserError('No template found')
+
     @classmethod
     def _get_resolved_action(cls, action):
         report_path = cls._resolve_configured_report_path(action)
+        report_content = cls._load_report_content(report_path)
         if isinstance(action, dict):
             resolved = dict(action)
             resolved['report'] = report_path
+            resolved['report_content'] = report_content
             return resolved
         setattr(action, 'report', report_path)
+        setattr(action, 'report_content', report_content)
+        action._template_cache.clear()
         return action
 
     @classmethod