Inject whole template into form object

Author: quis

app/main/forms.py

@@ -3215,8 +3215,8 @@ def validate_report_has_been_processed(self, field):
 
 
 class TemplateEmailFilesUploadForm(StripWhitespaceForm):
-    def __init__(self, *args, existing_files, **kwargs):
-        self.existing_file_names = InsensitiveSet(file.filename for file in existing_files)
+    def __init__(self, *args, template, **kwargs):
+        self.existing_file_names = InsensitiveSet(file.filename for file in template.existing_files)
         super().__init__(*args, **kwargs)
 
     allowed_file_formats = {

app/main/views/template_email_files.py

@@ -146,7 +146,7 @@ def upload_template_email_files(template_id, service_id):
     )
     if not current_service.contact_link:
         abort(403)
-    form = TemplateEmailFilesUploadForm(existing_files=template.email_files)
+    form = TemplateEmailFilesUploadForm(template=template)
     if form.validate_on_submit():
         template_email_file_id = TemplateEmailFile.create(
             filename=form.file.data.filename,