[IMP] base: optimize code with search_fetch() and fetch()

Part-of: odoo/odoo#112126

odoo/addons/base/models/ir_filters.py

@@ -72,10 +72,12 @@ class IrFilters(models.Model):
         """
         # available filters: private filters (user_id=uid) and public filters (uid=NULL),
         # and filters for the action (action_id=action_id) or global (action_id=NULL)
-        action_domain = self._get_action_domain(action_id)
-        filters = self.search(action_domain + [('model_id', '=', model), ('user_id', 'in', [self._uid, False])])
         user_context = self.env['res.users'].context_get()
-        return filters.with_context(user_context).read(['name', 'is_default', 'domain', 'context', 'user_id', 'sort'])
+        action_domain = self._get_action_domain(action_id)
+        return self.with_context(user_context).search_read(
+            action_domain + [('model_id', '=', model), ('user_id', 'in', [self._uid, False])],
+            ['name', 'is_default', 'domain', 'context', 'user_id', 'sort'],
+        )
 
     @api.model
     def _check_global_default(self, vals, matching_filters):

odoo/addons/base/models/res_partner.py

@@ -1055,7 +1055,7 @@ class Partner(models.Model):
         """
         States = self.env['res.country.state']
         states_ids = {vals['state_id'] for vals in vals_list if vals.get('state_id')}
-        state_to_country = States.search([('id', 'in', list(states_ids))]).read(['country_id'])
+        state_to_country = States.search_read([('id', 'in', list(states_ids))], ['country_id'])
         for vals in vals_list:
             if vals.get('state_id'):
                 country_id = next(c['country_id'][0] for c in state_to_country if c['id'] == vals.get('state_id'))