From 51d131663cba951a216dc14d46c84e3e0db6d80e Mon Sep 17 00:00:00 2001
From: David Beguin <dbe@odoo.com>
Date: Wed, 1 Dec 2021 08:46:42 +0000
Subject: [PATCH] [FIX] survey: test if survey exist in survey_layout for
 background management

Since fd75481d52878962a782cfe740be25b731c99efd, we use the survey variable to compute the
background_image_url in the survey_layout. In some cases (notably in
survey_session_code template), this layout is used without knowing the
variable 'survey'.

After this commit, the 'survey' variable is tested before usage.

Also, this commit add the o_survey_background class to the t-attf-class that
already exists on 'wrapwrap' selector. Otherwise, by having both t-att-class
and t-attf-class, only the t-att-class is kept.

Task-2703147

closes odoo/odoo#80656

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>
---
 addons/survey/views/survey_templates.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/addons/survey/views/survey_templates.xml b/addons/survey/views/survey_templates.xml
index 367692e984f..ccec0920e35 100644
--- a/addons/survey/views/survey_templates.xml
+++ b/addons/survey/views/survey_templates.xml
@@ -14,9 +14,9 @@
                              else ('background-image: url(' + page.background_image_url + ');')
                              if page and page.background_image_url
                              else ('background-image: url(' + survey.background_image_url + ');')
-                             if survey.background_image_url
+                             if survey and survey.background_image_url
                              else '')"/>
-            <attribute name="t-att-class" add="'o_survey_background'"/>
+            <attribute name="t-attf-class" add="o_survey_background" separator=" "/>
         </xpath>
         <xpath expr="//head/t[@t-call-assets][last()]" position="after">
             <t t-call-assets="survey.survey_assets" lazy_load="True"/>