Update attachment validation to latest ruamel.yaml version

docassemble/ALDashboard/data/questions/validate_attachment.yml

@@ -2,6 +2,9 @@
 include:
   - nav.yml
 ---
+modules:
+  - .validate_attachment
+---
 question: |
   Paste the contents of a long attachment block
   (beginning with the line `fields:`)
@@ -14,30 +17,7 @@ fields:
     rows: 10
 ---
 code: |
-  import ruamel.yaml as yaml
-  parsed_blocks = yaml.load(fields_statement)
----
-#mandatory: True
-question: |
-  ${ parsed_blocks['fields'] }
----
-code: |
-  import mako.template
-  import mako.runtime
-  import re
-
-  mako.runtime.UNDEFINED = DAEmpty()
-  from mako import exceptions
-  errors = []
-  empty_rows = []
-  for index, row in enumerate(parsed_blocks['fields']):
-    try: 
-      mytemplate = mako.template.Template(next(iter(row.values())))
-      content = mytemplate.render()
-    except:
-      # Row in XLSX file is 1 indexed, and it has a header row
-      errors.append((f"Error on row {index}, id: {row}",exceptions.text_error_template().render()))
-  del mytemplate
+  errors = validate_attachment_block(fields_statement)
   load_all_errors = True
 ---
 need:
@@ -58,11 +38,4 @@ subquestion: |
   ```
 
   % endfor
-  % endif
-
-  % if len(empty_rows):
-  #### ${ len(empty_rows) } untranslated strings found
-
-  Rows ${ comma_and_list(empty_rows) } have untranslated text.
-  % endif
-
+  % endif

docassemble/ALDashboard/validate_attachment.py

@@ -0,0 +1,22 @@
+from docassemble.base.util import DAEmpty
+import ruamel.yaml
+import mako.template
+import mako.runtime
+mako.runtime.UNDEFINED = DAEmpty()
+from mako import exceptions
+from typing import List, Tuple
+
+__all__ = ['validate_attachment_block']
+
+def validate_attachment_block(fields_statement: str) -> List[Tuple[str,str]]:
+    yaml = ruamel.yaml.YAML(typ='rt')
+    parsed_blocks = yaml.load(fields_statement)
+
+    errors = []
+    for index, row in enumerate(parsed_blocks['fields']):
+        try: 
+            mytemplate = mako.template.Template(next(iter(row.values())))
+            content = mytemplate.render()
+        except:
+            errors.append((f"Error on row {index}, id: {row}",exceptions.text_error_template().render()))
+    return errors