[FIX] base: recompute view.model_data_id (#13885)

The field was a stored computed field without dependencies, and therefore it
was never (re)computed. Add a simple dependency on the model `ir.model.data`
to make the recomputation everytime a view is modified. Moreover, when views
are created from modules, delay the recomputation of view fields until their
`ir.model.data` record is created.

addons/website/tests/test_views.py

@@ -141,6 +141,24 @@ class TestViewSaving(common.TransactionCase):
         Company = self.registry('res.company')
         View = self.registry('ir.ui.view')
 
+        # create a view with an xmlid, like the file import would
+        with self.env.norecompute():
+            self.view_id = View.create(self.cr, self.uid, {
+                'name': "Test View",
+                'type': 'qweb',
+                'arch': ET.tostring(self.arch, encoding='utf-8').decode('utf-8')
+            })
+        imd = self.env['ir.model.data'].create({
+            'module': 'website',
+            'name': 'test_view',
+            'model': 'ir.ui.view',
+            'res_id': self.view_id,
+        })
+
+        # the xml_id of the view should not be flagged as 'noupdate'
+        self.assertEqual(View.browse(self.cr, self.uid, self.view_id).model_data_id, imd)
+        self.assertFalse(imd.noupdate)
+
         replacement = ET.tostring(h.DIV(
             h.H3("Column 2"),
             h.UL(
@@ -152,6 +170,9 @@ class TestViewSaving(common.TransactionCase):
         View.save(self.cr, self.uid, res_id=self.view_id, value=replacement,
                   xpath='/div/div[2]')
 
+        # the xml_id of the view should be flagged as 'noupdate'
+        self.assertTrue(imd.noupdate)
+
         company = Company.browse(self.cr, self.uid, 1)
         self.assertEqual(company.name, "Acme Corporation")
         self.assertEqual(company.phone, "+12 3456789")

openerp/addons/base/ir/ir_ui_view.py

@@ -229,10 +229,11 @@ actual arch.
         for view, view_wo_lang in zip(self, self.with_context(lang=None)):
             view_wo_lang.arch = view.arch_base
 
+    @api.depends('write_date')
     def _compute_model_data_id(self):
-        # get the last ir_model_data record corresponding to self
+        # get the first ir_model_data record corresponding to self
         domain = [('model', '=', 'ir.ui.view'), ('res_id', 'in', self.ids)]
-        for data in self.env['ir.model.data'].search_read(domain, ['res_id']):
+        for data in self.env['ir.model.data'].search_read(domain, ['res_id'], order='id desc'):
             view = self.browse(data['res_id'])
             view.model_data_id = data['id']
 
@@ -337,7 +338,15 @@ actual arch.
             values['name'] = "%s %s" % (values.get('model'), values['type'])
 
         self.clear_caches()
-        return super(View, self).create(self._compute_defaults(values))
+
+        if 'install_mode_data' in self._context:
+            # the view is created from a data file by installing a module; delay
+            # the recomputation of field 'model_data_id' until its xmlid record
+            # is created
+            with self.env.norecompute():
+                return super(View, self).create(self._compute_defaults(values))
+        else:
+            return super(View, self).create(self._compute_defaults(values))
 
     @api.multi
     def write(self, vals):

openerp/addons/base/tests/test_views.py

@@ -14,6 +14,14 @@ import openerp.tools
 
 Field = E.field
 
+class ViewXMLID(common.TransactionCase):
+    def test_model_data_id(self):
+        """ Check whether views know their xmlid record. """
+        view = self.env.ref('base.view_company_form')
+        self.assertTrue(view)
+        self.assertTrue(view.model_data_id)
+        self.assertEqual(view.model_data_id.complete_name, 'base.view_company_form')
+
 class ViewCase(common.TransactionCase):
     def setUp(self):
         super(ViewCase, self).setUp()