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/* adapter_asis.c - adapt types as they are
*
* Copyright (C) 2003-2010 Federico Di Gregorio <fog@debian.org>
*
* This file is part of psycopg.
*
* psycopg2 is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* In addition, as a special exception, the copyright holders give
* permission to link this program with the OpenSSL library (or with
* modified versions of OpenSSL that use the same license as OpenSSL),
* and distribute linked combinations including the two.
*
* You must obey the GNU Lesser General Public License in all respects for
* all of the code used other than OpenSSL.
*
* psycopg2 is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*/
#define PSYCOPG_MODULE
#include "psycopg/psycopg.h"
#include "psycopg/adapter_asis.h"
#include "psycopg/microprotocols_proto.h"
#include <string.h>
/** the AsIs object **/
static PyObject *
asis_getquoted(asisObject *self, PyObject *args)
{
PyObject *rv;
if (self->wrapped == Py_None) {
Py_INCREF(psyco_null);
rv = psyco_null;
}
else {
rv = PyObject_Str(self->wrapped);
#if PY_MAJOR_VERSION > 2
/* unicode to bytes in Py3 */
if (rv) {
PyObject *tmp = PyUnicode_AsUTF8String(rv);
Py_DECREF(rv);
rv = tmp;
}
#endif
}
return rv;
}
static PyObject *
asis_str(asisObject *self)
{
return psycopg_ensure_text(asis_getquoted(self, NULL));
}
static PyObject *
asis_conform(asisObject *self, PyObject *args)
{
PyObject *res, *proto;
if (!PyArg_ParseTuple(args, "O", &proto)) return NULL;
if (proto == (PyObject*)&isqlquoteType)
res = (PyObject*)self;
else
res = Py_None;
Py_INCREF(res);
return res;
}
/** the AsIs object */
/* object member list */
static struct PyMemberDef asisObject_members[] = {
{"adapted", T_OBJECT, offsetof(asisObject, wrapped), READONLY},
{NULL}
};
/* object method table */
static PyMethodDef asisObject_methods[] = {
{"getquoted", (PyCFunction)asis_getquoted, METH_NOARGS,
"getquoted() -> wrapped object value as SQL-quoted string"},
{"__conform__", (PyCFunction)asis_conform, METH_VARARGS, NULL},
{NULL} /* Sentinel */
};
/* initialization and finalization methods */
static int
asis_setup(asisObject *self, PyObject *obj)
{
Dprintf("asis_setup: init asis object at %p, refcnt = "
FORMAT_CODE_PY_SSIZE_T,
self, Py_REFCNT(self)
);
Py_INCREF(obj);
self->wrapped = TO_STATE(obj);
Dprintf("asis_setup: good asis object at %p, refcnt = "
FORMAT_CODE_PY_SSIZE_T,
self, Py_REFCNT(self)
);
return 0;
}
static void
asis_dealloc(PyObject* obj)
{
asisObject *self = (asisObject *)obj;
Py_CLEAR(self->wrapped);
Dprintf("asis_dealloc: deleted asis object at %p, refcnt = "
FORMAT_CODE_PY_SSIZE_T,
obj, Py_REFCNT(obj)
);
Py_TYPE(obj)->tp_free(obj);
}
static int
asis_init(PyObject *obj, PyObject *args, PyObject *kwds)
{
PyObject *o;
if (!PyArg_ParseTuple(args, "O", &o))
return -1;
return asis_setup((asisObject *)obj, o);
}
static PyObject *
asis_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
return type->tp_alloc(type, 0);
}
/* object type */
#define asisType_doc \
"AsIs(str) -> new AsIs adapter object"
PyTypeObject asisType = {
PyVarObject_HEAD_INIT(NULL, 0)
"psycopg2.extensions.AsIs",
sizeof(asisObject), 0,
asis_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
0, /*tp_call*/
(reprfunc)asis_str, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /*tp_flags*/
asisType_doc, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
asisObject_methods, /*tp_methods*/
asisObject_members, /*tp_members*/
0, /*tp_getset*/
0, /*tp_base*/
0, /*tp_dict*/
0, /*tp_descr_get*/
0, /*tp_descr_set*/
0, /*tp_dictoffset*/
asis_init, /*tp_init*/
0, /*tp_alloc*/
asis_new, /*tp_new*/
};
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