[ADD] survey_extra_fields : file question type

survey_extra_fields/models/survey_user_input_line.py

@@ -0,0 +1,17 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class SurveyUserInputLine(models.Model):
+    _inherit = "survey.user_input.line"
+
+    answer_type = fields.Selection(
+        selection_add=[("file", "File")]
+    )
+
+    def _compute_display_name(self):
+        super()._compute_display_name()
+        for line in self:
+            if line.answer_type == "file" and line.value_file_fname:
+                line.display_name = line.value_file_fname