Update for an Issue #352

plugins/dbms/sqlite/syntax.py

@@ -7,6 +7,7 @@ See the file 'doc/COPYING' for copying permission
 
 import binascii
 
+from lib.core.common import Backend
 from lib.core.common import isDBMSVersionAtLeast
 from lib.core.settings import UNICODE_ENCODING
 from plugins.generic.syntax import Syntax as GenericSyntax
@@ -17,6 +18,17 @@ class Syntax(GenericSyntax):
 
     @staticmethod
     def escape(expression, quote=True):
+        """
+        >>> Backend.setVersion('2')
+        ['2']
+        >>> Syntax.escape("SELECT 'abcdefgh' FROM foobar")
+        "SELECT 'abcdefgh' FROM foobar"
+        >>> Backend.setVersion('3')
+        ['3']
+        >>> Syntax.escape("SELECT 'abcdefgh' FROM foobar")
+        "SELECT CAST(X'6162636465666768' AS TEXT) FROM foobar"
+        """
+
         def escaper(value):
             # Reference: http://stackoverflow.com/questions/3444335/how-do-i-quote-a-utf-8-string-literal-in-sqlite3
             return "CAST(X'%s' AS TEXT)" % binascii.hexlify(value.encode(UNICODE_ENCODING) if isinstance(value, unicode) else value)