Use subquery when searching for similarity on translated Char

issue10624
review363621002

trytond/model/fields/char.py

@@ -2,6 +2,7 @@
 # this repository contains the full copyright notices and license terms.
 import warnings
 
+from sql.conditionals import Coalesce, NullIf
 from sql.operators import Not
 
 from trytond.rpc import RPC
@@ -91,6 +92,7 @@ class Char(FieldTranslate):
                 language = transaction.language
                 model, join, column = self._get_translation_column(
                     Model, name)
+                column = Coalesce(NullIf(column, ''), self.sql_column(model))
             else:
                 language = None
                 column = self.sql_column(table)
@@ -106,6 +108,9 @@ class Char(FieldTranslate):
                     database.similarity(column, sim_value) >= threshold)
                 if operator.startswith('not'):
                     expression = Not(expression)
+                if self.translate:
+                    expression = table.id.in_(
+                        join.select(model.id, where=expression))
 
             key = '%s.%s.search_full_text' % (Model.__name__, name)
             if ((self.search_full_text or context.get(key))

trytond/tests/test_field_char.py

@@ -586,11 +586,7 @@ class FieldCharSimilarityTestCase(ExtensionTestCase):
         activate_module('tests')
         super().setUpClass()
 
-    @with_transaction()
-    def test_search(self):
-        "Test search"
-        pool = Pool()
-        Model = pool.get('test.char')
+    def _test_search(self, Model):
         record1, record2 = Model.create([{
                     'char': "word",
                     }, {
@@ -602,10 +598,18 @@ class FieldCharSimilarityTestCase(ExtensionTestCase):
                     ]), [record1])
 
     @with_transaction()
-    def test_order(self):
-        "Test order"
+    def test_search(self):
+        "Test search"
         pool = Pool()
-        Model = pool.get('test.char')
+        self._test_search(pool.get('test.char'))
+
+    @with_transaction()
+    def test_search_translated(self):
+        "Test search translated"
+        pool = Pool()
+        self._test_search(pool.get('test.char_translate'))
+
+    def _test_order(self, Model):
         record1, record2 = Model.create([{
                     'char': "word",
                     }, {
@@ -618,6 +622,18 @@ class FieldCharSimilarityTestCase(ExtensionTestCase):
                         ], order=[('char', 'DESC')]),
                 [record2, record1])
 
+    @with_transaction()
+    def test_order(self):
+        "Test order"
+        pool = Pool()
+        self._test_order(pool.get('test.char'))
+
+    @with_transaction()
+    def test_order_translated(self):
+        "Test order translated"
+        pool = Pool()
+        self._test_order(pool.get('test.char_translate'))
+
 
 def suite():
     suite_ = unittest.TestSuite()