[IMP] mail: move res_ids parser in tools

Purpose is to make it more widely available, as it can be used in other wizards
dealing with res_ids / active_ids.

Task-3390865

Part-of: odoo/odoo#137969

addons/mail/models/mail_ice_server.py

@@ -2,7 +2,7 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
 from odoo import fields, models
-from odoo.addons.mail.tools.credentials import get_twilio_credentials
+from odoo.addons.mail.tools.discuss import get_twilio_credentials
 import requests
 
 

addons/mail/tools/parser.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+import ast
+
+from odoo import _, tools
+from odoo.exceptions import ValidationError
+
+
+def parse_res_ids(res_ids):
+    """ Returns the already valid list/tuple of int or returns the literal eval
+    of the string as a list/tuple of int. Void strings / missing values are
+    evaluated as an empty list.
+
+    :param str|tuple|list res_ids: a list of ids, tuple or list;
+
+    :raise: ValidationError if the provided res_ids is an incorrect type or
+      invalid format;
+
+    :return list: list of ids
+    """
+    if tools.is_list_of(res_ids, int) or not res_ids:
+        return res_ids
+    error_msg = _("Invalid res_ids %(res_ids_str)s (type %(res_ids_type)s)",
+                  res_ids_str=res_ids,
+                  res_ids_type=type(res_ids))
+    try:
+        res_ids = ast.literal_eval(res_ids)
+    except Exception as e:
+        raise ValidationError(error_msg) from e
+
+    if not tools.is_list_of(res_ids, int):
+        raise ValidationError(error_msg)
+
+    return res_ids

addons/mail/wizard/mail_compose_message.py

@@ -10,6 +10,7 @@ from odoo import _, api, fields, models, tools, Command
 from odoo.exceptions import UserError, ValidationError
 from odoo.osv import expression
 from odoo.tools import is_html_empty
+from odoo.addons.mail.tools.parser import parse_res_ids
 
 
 def _reopen(self, res_id, model, context=None):
@@ -379,7 +380,7 @@ class MailComposer(models.TransientModel):
             if composer.parent_id and composer.composition_mode == 'comment':
                 composer.res_ids = f"{[composer.parent_id.res_id]}"
             else:
-                active_res_ids = self._parse_res_ids(self.env.context.get('active_ids'))
+                active_res_ids = parse_res_ids(self.env.context.get('active_ids'))
                 # beware, field is limited in storage, usage of active_ids in context still required
                 if active_res_ids and len(active_res_ids) <= self._batch_size:
                     composer.res_ids = f"{self.env.context['active_ids']}"
@@ -1329,27 +1330,12 @@ class MailComposer(models.TransientModel):
 
         :return: a list of IDs (empty list in case of falsy strings)"""
         self.ensure_one()
-        return self._parse_res_ids(
+        return parse_res_ids(
             self.env.context.get('composer_force_res_ids') or
             self.res_ids or
             self.env.context.get('active_ids')
         ) or []
 
-    @api.model
-    def _parse_res_ids(self, res_ids):
-        if tools.is_list_of(res_ids, int) or not res_ids:
-            return res_ids
-        error_msg = _("Invalid res_ids %(res_ids_str)s (type %(res_ids_type)s)",
-                      res_ids_str=res_ids,
-                      res_ids_type=type(res_ids))
-        try:
-            res_ids = ast.literal_eval(res_ids)
-        except Exception as e:
-            raise ValidationError(error_msg) from e
-        if not tools.is_list_of(res_ids, int):
-            raise ValidationError(error_msg)
-        return res_ids
-
     def _set_value_from_template(self, template_fname, composer_fname=False):
         """ Set composer value from its template counterpart. In monorecord
         comment mode, we get directly the rendered value, giving the real