pt_multi_link: improve UX by searching templates on default_code

product_template_multi_link/models/product_template.py

@@ -6,6 +6,7 @@
 
 from odoo import _, api, fields, models
 from odoo.exceptions import AccessError
+from odoo.osv import expression
 
 
 class ProductTemplate(models.Model):
@@ -103,3 +104,35 @@ def get_links_by_code(self, code):
         return self.product_template_link_ids.filtered(
             lambda r: r.type_id.code == code and r.is_link_active
         )
+
+    @api.model
+    def _name_search(self, name, args=None, operator='ilike', limit=100, name_get_uid=None):
+        # NOTE: Odoo limits the search on the name of templates as soon as
+        # the 'id' field is present in 'args' domain, and this 'id' criteria is
+        # set by the view on purpose to avoid a search on variants.
+        # Improve this search by looking also on template's default_code
+        # if there is only a domain on 'id'.
+        search_default_code = self.env.context.get("name_search_default_code")
+        if name and len(args or []) == 1 and args[0][0] == 'id' and search_default_code:
+            args = expression.AND(
+                [
+                    args,
+                    expression.OR(
+                        [
+                            [("default_code", operator, name)],
+                            [(self._rec_name, operator, name)],
+                        ]
+                    )
+                ]
+            )
+            # Reset 'name' so base '_name_search' won't add '_rec_name'
+            # to 'args' (already added above).
+            # See 'odoo.models.BaseModel._name_search'.
+            name = ""
+        return super()._name_search(
+            name=name,
+            args=args,
+            operator=operator,
+            limit=limit,
+            name_get_uid=name_get_uid
+        )

product_template_multi_link/tests/__init__.py

@@ -1,3 +1,4 @@
 from . import test_product_template_link_type
 from . import test_product_template_link
 from . import test_product_template_linker
+from . import test_product_template

product_template_multi_link/tests/test_product_template.py

@@ -0,0 +1,50 @@
+# Copyright 2023 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl)
+
+from odoo.tests.common import SavepointCase
+
+
+class TestProductTemplate(SavepointCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.env = cls.env(
+            context=dict(
+                cls.env.context,
+                tracking_disable=True,
+                # compatibility flag when you run tests on a db
+                # where `product_variant_multi_link` is installed.
+                _product_variant_link_bypass_check=True,
+            )
+        )
+        cls.product_template = cls.env["product.template"].create(
+            {"name": "PTL_name", "default_code": "PTL_default_code"}
+        )
+
+    def test_product_template_name_search_with_name(self):
+        # As soon as the value is matching the name of the template, it's working,
+        # with or without the domain on 'id'
+        product = self.env["product.template"].name_search("PTL_name")
+        self.assertTrue(product)
+        product = self.env["product.template"].name_search(
+            "PTL_name", args=[("id", "!=", 0)]
+        )
+        self.assertTrue(product)
+        product = self.env["product.template"].with_context(name_search_default_code=True).name_search(
+            "PTL_name", args=[("id", "!=", 0)]
+        )
+        self.assertTrue(product)
+
+    def test_product_template_name_search_with_default_code(self):
+        product = self.env["product.template"].name_search("PTL_default_code")
+        self.assertTrue(product)
+        # Searching with the default_code => the template is not found
+        product = self.env["product.template"].name_search(
+            "PTL_default_code", args=[("id", "!=", 0)]
+        )
+        self.assertFalse(product)
+        # Same but enable the search on default_code => the template is now found
+        product = self.env["product.template"].with_context(name_search_default_code=True).name_search(
+            "PTL_default_code", args=[("id", "!=", 0)]
+        )
+        self.assertTrue(product)

product_template_multi_link/views/product_template_link_view.xml

@@ -31,9 +31,17 @@
         <field name="model">product.template.link</field>
         <field name="arch" type="xml">
             <tree editable="top">
-                <field name="left_product_tmpl_id" domain="[('id', '!=', 0)]" />
+                <field
+                    name="left_product_tmpl_id"
+                    domain="[('id', '!=', 0)]"
+                    context="{'name_search_default_code': True}"
+                />
                 <field name="type_id" />
-                <field name="right_product_tmpl_id" domain="[('id', '!=', 0)]" />
+                <field
+                    name="right_product_tmpl_id"
+                    domain="[('id', '!=', 0)]"
+                    context="{'name_search_default_code': True}"
+                />
             </tree>
         </field>
     </record>