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/* adapter_asis.c - adapt types as they are
*
* Copyright (C) 2003-2004 Federico Di Gregorio <fog@debian.org>
*
* This file is part of psycopg.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <structmember.h>
#include <stringobject.h>
#include <string.h>
#define PSYCOPG_MODULE
#include "psycopg/config.h"
#include "psycopg/python.h"
#include "psycopg/psycopg.h"
#include "psycopg/adapter_asis.h"
#include "psycopg/microprotocols_proto.h"
/** the AsIs object **/
static PyObject *
asis_str(asisObject *self)
{
if (self->wrapped == Py_None) {
return PyString_FromString("NULL");
}
else {
return PyObject_Str(self->wrapped);
}
}
static PyObject *
asis_getquoted(asisObject *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, "")) return NULL;
return asis_str(self);
}
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), RO},
{NULL}
};
/* object method table */
static PyMethodDef asisObject_methods[] = {
{"getquoted", (PyCFunction)asis_getquoted, METH_VARARGS,
"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, ((PyObject *)self)->ob_refcnt
);
self->wrapped = obj;
Py_INCREF(self->wrapped);
Dprintf("asis_setup: good asis object at %p, refcnt = "
FORMAT_CODE_PY_SSIZE_T,
self, ((PyObject *)self)->ob_refcnt
);
return 0;
}
static void
asis_dealloc(PyObject* obj)
{
asisObject *self = (asisObject *)obj;
Py_XDECREF(self->wrapped);
Dprintf("asis_dealloc: deleted asis object at %p, refcnt = "
FORMAT_CODE_PY_SSIZE_T,
obj, obj->ob_refcnt
);
obj->ob_type->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);
}
static void
asis_del(PyObject* self)
{
PyObject_Del(self);
}
static PyObject *
asis_repr(asisObject *self)
{
return PyString_FromFormat("<psycopg2._psycopg.AsIs object at %p>", self);
}
/* object type */
#define asisType_doc \
"AsIs(str) -> new AsIs adapter object"
PyTypeObject asisType = {
PyObject_HEAD_INIT(NULL)
0,
"psycopg2._psycopg.AsIs",
sizeof(asisObject),
0,
asis_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
(reprfunc)asis_repr, /*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*/
/* Attribute descriptor and subclassing stuff */
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 will be set to PyType_GenericAlloc in module init*/
asis_new, /*tp_new*/
(freefunc)asis_del, /*tp_free Low-level free-memory routine */
0, /*tp_is_gc For PyObject_IS_GC */
0, /*tp_bases*/
0, /*tp_mro method resolution order */
0, /*tp_cache*/
0, /*tp_subclasses*/
0 /*tp_weaklist*/
};
/** module-level functions **/
PyObject *
psyco_AsIs(PyObject *module, PyObject *args)
{
PyObject *obj;
if (!PyArg_ParseTuple(args, "O", &obj))
return NULL;
return PyObject_CallFunction((PyObject *)&asisType, "O", obj);
}
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