Merge pull request #501 from niphlod/fix/dal_contains

fixed bug on contains(), smart_query uses ilike instead of like

gluon/dal.py

@@ -7770,7 +7770,7 @@ def smart_query(fields, text):
             elif op == 'notbelongs': new_query = ~field.belongs(value.split(','))
             elif field.type in ('text', 'string', 'json'):
                 if op == 'contains': new_query = field.contains(value)
-                elif op == 'like': new_query = field.like(value)
+                elif op == 'like': new_query = field.ilike(value)
                 elif op == 'startswith': new_query = field.startswith(value)
                 elif op == 'endswith': new_query = field.endswith(value)
                 else: raise RuntimeError("Invalid operation")
@@ -9860,14 +9860,12 @@ class Expression(object):
 
     def contains(self, value, all=False, case_sensitive=False):
         """
-        The case_sensitive parameters is only useful for PostgreSQL
-        For other RDMBs it is ignored and contains is always case insensitive
         For MongoDB and GAE contains is always case sensitive
         """
         db = self.db
         if isinstance(value, (list, tuple)):
-            subqueries = [self.contains(str(v).strip(), case_sensitive=case_sensitive)
+            subqueries = [self.contains(v, case_sensitive=case_sensitive)
-                          for v in value if str(v).strip()]
+                          for v in value if v]
             if not subqueries:
                 return self.contains('')
             else: