[IMP] base: do not set a value for new translations

When generating new translations (e.g. 'edit translations' button on a view or
on a translatable field), the new generated translations have the source as
translation value.

Set the state to 'to_translate' as it is the default value

This change requires to add a fallback in web_editor when computing translated
dom

When a translation has no value, there is a fallback done in the different
translation method (e.g. xml_translate) but, as the node was manually created
in edit_translation_mapping, the fallback was missing

closes #24391

addons/web_editor/models/ir_translation.py

@@ -8,7 +8,7 @@
 
 
 def edit_translation_mapping(data):
-    data = dict(data, model=data['name'].partition(',')[0])
+    data = dict(data, model=data['name'].partition(',')[0], value=data['value'] or data['src'])
     return '<span data-oe-model="%(model)s" data-oe-translation-id="%(id)s" data-oe-translation-state="%(state)s">%(value)s</span>' % data
 
 

odoo/addons/base/models/ir_translation.py

@@ -590,8 +590,8 @@ def insert_missing(self, field, records):
         external_ids = records.get_external_id()  # if no xml_id, empty string
         if callable(field.translate):
             # insert missing translations for each term in src
-            query = """ INSERT INTO ir_translation (lang, type, name, res_id, src, value, module)
-                        SELECT l.code, 'model', %(name)s, %(res_id)s, %(src)s, %(src)s, %(module)s
+            query = """ INSERT INTO ir_translation (lang, type, name, res_id, src, module, state)
+                        SELECT l.code, 'model', %(name)s, %(res_id)s, %(src)s, %(module)s, 'to_translate'
                         FROM res_lang l
                         WHERE l.active AND l.translatable AND NOT EXISTS (
                             SELECT 1 FROM ir_translation
@@ -610,8 +610,8 @@ def insert_missing(self, field, records):
                     })
         else:
             # insert missing translations for src
-            query = """ INSERT INTO ir_translation (lang, type, name, res_id, src, value, module)
-                        SELECT l.code, 'model', %(name)s, %(res_id)s, %(src)s, %(src)s, %(module)s
+            query = """ INSERT INTO ir_translation (lang, type, name, res_id, src, module, state)
+                        SELECT l.code, 'model', %(name)s, %(res_id)s, %(src)s, %(module)s, 'to_translate'
                         FROM res_lang l
                         WHERE l.active AND l.translatable AND l.code != 'en_US' AND NOT EXISTS (
                             SELECT 1 FROM ir_translation