Author: ikelly Date: 2010-04-28 12:15:11 -0500 (Wed, 28 Apr 2010) New Revision: 13043
Modified: django/branches/releases/1.1.X/ django/branches/releases/1.1.X/django/db/backends/oracle/base.py django/branches/releases/1.1.X/tests/regressiontests/backends/tests.py Log: [1.1.X] Fixed a bug preventing cursor variables from being passed as bind parameters in the oracle backend. Backport of r13042 from trunk. Property changes on: django/branches/releases/1.1.X ___________________________________________________________________ Name: svnmerge-integrated - 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Modified: django/branches/releases/1.1.X/django/db/backends/oracle/base.py =================================================================== --- django/branches/releases/1.1.X/django/db/backends/oracle/base.py 2010-04-28 17:08:06 UTC (rev 13042) +++ django/branches/releases/1.1.X/django/db/backends/oracle/base.py 2010-04-28 17:15:11 UTC (rev 13043) @@ -376,6 +376,30 @@ self.input_size = None +class VariableWrapper(object): + """ + An adapter class for cursor variables that prevents the wrapped object + from being converted into a string when used to instanciate an OracleParam. + This can be used generally for any other object that should be passed into + Cursor.execute as-is. + """ + + def __init__(self, var): + self.var = var + + def bind_parameter(self, cursor): + return self.var + + def __getattr__(self, key): + return getattr(self.var, key) + + def __setattr__(self, key, value): + if key == 'var': + self.__dict__[key] = value + else: + setattr(self.var, key, value) + + class InsertIdVar(object): """ A late-binding cursor variable that can be passed to Cursor.execute @@ -384,7 +408,7 @@ """ def bind_parameter(self, cursor): - param = cursor.var(Database.NUMBER) + param = cursor.cursor.var(Database.NUMBER) cursor._insert_id_var = param return param @@ -439,7 +463,7 @@ return self.cursor.execute(query, self._param_generator(params)) except DatabaseError, e: # cx_Oracle <= 4.4.0 wrongly raises a DatabaseError for ORA-01400. - if e.args[0].code == 1400 and not isinstance(e, IntegrityError): + if hasattr(e.args[0], 'code') and e.args[0].code == 1400 and not isinstance(e, IntegrityError): e = IntegrityError(e.args[0]) raise e @@ -463,7 +487,7 @@ [self._param_generator(p) for p in formatted]) except DatabaseError, e: # cx_Oracle <= 4.4.0 wrongly raises a DatabaseError for ORA-01400. - if e.args[0].code == 1400 and not isinstance(e, IntegrityError): + if hasattr(e.args[0], 'code') and e.args[0].code == 1400 and not isinstance(e, IntegrityError): e = IntegrityError(e.args[0]) raise e @@ -523,6 +547,12 @@ casted.append(value) return tuple(casted) + def var(self, *args): + return VariableWrapper(self.cursor.var(*args)) + + def arrayvar(self, *args): + return VariableWrapper(self.cursor.arrayvar(*args)) + def __getattr__(self, attr): if attr in self.__dict__: return self.__dict__[attr] Modified: django/branches/releases/1.1.X/tests/regressiontests/backends/tests.py =================================================================== --- django/branches/releases/1.1.X/tests/regressiontests/backends/tests.py 2010-04-28 17:08:06 UTC (rev 13042) +++ django/branches/releases/1.1.X/tests/regressiontests/backends/tests.py 2010-04-28 17:15:11 UTC (rev 13043) @@ -22,6 +22,16 @@ else: return True + def test_cursor_var(self): + # If the backend is Oracle, test that we can pass cursor variables + # as query parameters. + if settings.DATABASE_ENGINE == 'oracle': + cursor = connection.cursor() + var = cursor.var(backend.Database.STRING) + cursor.execute("BEGIN %s := 'X'; END; ", [var]) + self.assertEqual(var.getvalue(), 'X') + + class LongString(unittest.TestCase): def test_long_string(self): -- You received this message because you are subscribed to the Google Groups "Django updates" group. 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