Add likify tools

trytond/CHANGELOG

@@ -1,3 +1,4 @@
+* Add likify tools
 * Remove user from contextual key of Cache
 * Remove user from evaluation context of rule domain
 * Allow customizing context per model for rule

trytond/doc/ref/tools/misc.rst

@@ -36,6 +36,10 @@ Miscellaneous
    This is the case when the value starts and ends with a ``%`` or does not
    contain any wild cards.
 
+.. function:: likify(string[, escape])
+
+   Convert the string for full text if it does not contain any wild cards.
+
 .. function:: sql_pairing(x, y)
 
    Return an SQL expression that pairs SQL integers x and y.

trytond/trytond/tests/test_tools.py

@@ -13,7 +13,7 @@ import sql.operators
 
 from trytond.tools import (
     decimal_, escape_wildcard, file_open, firstline, grouped_slice,
-    is_full_text, is_instance_method, lstrip_wildcard, reduce_domain,
+    is_full_text, is_instance_method, likify, lstrip_wildcard, reduce_domain,
     reduce_ids, remove_forbidden_chars, rstrip_wildcard, slugify,
     sortable_values, strip_wildcard, timezone, unescape_wildcard)
 from trytond.tools.domain_inversion import (
@@ -252,6 +252,19 @@ class ToolsTestCase(unittest.TestCase):
             with self.subTest(value=value):
                 self.assertEqual(is_full_text(value), result)
 
+    def test_likify(self):
+        "Test likify"
+        for value, result in [
+                ('', '%'),
+                ('foo', '%foo%'),
+                ('foo%', 'foo%'),
+                ('f_o', 'f_o'),
+                ('%foo%', '%foo%'),
+                ('foo\\_bar', '%foo\\_bar%'),
+                ]:
+            with self.subTest(value=value):
+                self.assertEqual(likify(value), result)
+
     def test_slugify(self):
         "Test slugify"
         self.assertEqual(slugify('unicode ♥ is ☢'), 'unicode-is')

trytond/trytond/tools/__init__.py

@@ -15,7 +15,7 @@ except ImportError:
 from .decimal_ import decistmt
 from .misc import (
     escape_wildcard, file_open, find_dir, find_path, firstline,
-    get_smtp_server, grouped_slice, is_full_text, is_instance_method,
+    get_smtp_server, grouped_slice, is_full_text, is_instance_method, likify,
     lstrip_wildcard, reduce_domain, reduce_ids, remove_forbidden_chars,
     resolve, rstrip_wildcard, slugify, sortable_values, sql_pairing,
     strip_wildcard, unescape_wildcard)
@@ -50,6 +50,7 @@ __all__ = [
     grouped_slice,
     is_full_text,
     is_instance_method,
+    likify,
     lstrip_wildcard,
     reduce_domain,
     reduce_ids,

trytond/trytond/tools/misc.py

@@ -253,6 +253,16 @@ def is_full_text(value, escape='\\'):
     return value.startswith('%') == value.endswith('%')
 
 
+def likify(string, escape='\\'):
+    if not string:
+        return '%'
+    escaped = string.replace(escape + '%', '').replace(escape + '_', '')
+    if '%' in escaped or '_' in escaped:
+        return string
+    else:
+        return '%' + string + '%'
+
+
 _slugify_strip_re = re.compile(r'[^\w\s-]')
 _slugify_hyphenate_re = re.compile(r'[-\s]+')