[FIX] mass_mailing_list_dynamic: Avoid error on shared contacts

- Create a contact with tag "X"
- Create a dynamic mailing list fully sync with criteria for tag "X".
- Sync it.
- Create a second mailing list non dynamic.
- Try to add the contact to second mailing list.

You get an error in this case, and it shouldn't happen.

mass_mailing_list_dynamic/models/mail_mass_mailing_contact.py

@@ -1,5 +1,6 @@
 # Copyright 2017 Tecnativa - Jairo Llopis
 # Copyright 2019 Tecnativa - Victor M.M. Torres
+# Copyright 2020 Tecnativa - Pedro M. Baeza
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
 from odoo import _, api, models
@@ -9,13 +10,48 @@ from odoo.exceptions import ValidationError
 class MassMailingContact(models.Model):
     _inherit = "mail.mass_mailing.contact"
 
-    @api.constrains("partner_id", "list_ids", "name", "email")
-    def _check_no_manual_edits_on_fully_synced_lists(self):
+    def _check_dynamic_full_sync_list(self, mailing_list):
+        if mailing_list.dynamic and mailing_list.sync_method == "full":
+            raise ValidationError(_(
+                "Cannot edit manually contacts in a fully "
+                "synchronized list. Change its sync method or execute "
+                "a manual sync instead."
+            ))
+
+    def _check_no_modification_on_fully_synced_lists(self, vals):
+        """Check that no modification is done on fully synced dynamic list.
+        We examine then each possible command applied in the m2m field.
+        """
         if self.env.context.get("syncing"):
             return
-        if any(self.mapped('list_ids').filtered(
-                lambda x: x.dynamic and x.sync_method == "full")):
-            raise ValidationError(
-                _("Cannot edit manually contacts in a fully "
-                    "synchronized list. Change its sync method or execute "
-                    "a manual sync instead."))
+        for command in vals["list_ids"]:
+            if command[0] in (1, 2, 3, 4):
+                lst = self.env["mail.mass_mailing.list"].browse(command[1])
+                self._check_dynamic_full_sync_list(lst)
+            elif command[0] in (5, 6):
+                for lst in self.mapped("list_ids"):
+                    self._check_dynamic_full_sync_list(lst)
+                if command[0] == 6:
+                    for _id in command[2]:
+                        lst = self.env["mail.mass_mailing.list"].browse(_id)
+                        self._check_dynamic_full_sync_list(lst)
+
+    @api.constrains("partner_id", "name", "email")
+    def _check_no_manual_edits_on_fully_synced_lists(self):
+        """We have to avoid also changes in linked partner, name or email."""
+        if self.env.context.get("syncing"):
+            return
+        for lst in self.mapped('list_ids'):
+            self._check_dynamic_full_sync_list(lst)
+
+    def write(self, vals):
+        if "list_ids" in vals:
+            self._check_no_modification_on_fully_synced_lists(vals)
+        return super().write(vals)
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            if "list_ids" in vals:
+                self._check_no_modification_on_fully_synced_lists(vals)
+        return super().create(vals_list)

mass_mailing_list_dynamic/tests/test_dynamic_lists.py

@@ -136,3 +136,17 @@ class DynamicListCase(common.SavepointCase):
         self.assertFalse(self.list.is_synced)
         self.list.action_sync()
         self.assertTrue(self.list.is_synced)
+
+    def test_no_edition_fully_synced_dynamic_list(self):
+        self.list.sync_method = "full"
+        contact = self.env["mail.mass_mailing.contact"].create({
+            "partner_id": self.partners[0].id,
+        })
+        with self.assertRaises(ValidationError):
+            contact.list_ids = [(4, self.list.id)]
+        # This one shouldn't fail
+        list2 = self.env["mail.mass_mailing.list"].create({
+            "name": "test list 2",
+            "dynamic": False,
+        })
+        contact.list_ids = [(4, list2.id)]