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/* cursor_int.c - code used by the cursor object
*
* 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/cursor.h"
#include "psycopg/pqpath.h"
#include "psycopg/typecast.h"
/* curs_get_cast - return the type caster for an oid.
*
* Return the most specific type caster, from cursor to connection to global.
* If no type caster is found, return the default one.
*
* Return a borrowed reference.
*/
BORROWED PyObject *
curs_get_cast(cursorObject *self, PyObject *oid)
{
PyObject *cast;
/* cursor lookup */
if (self->string_types != NULL && self->string_types != Py_None) {
cast = PyDict_GetItem(self->string_types, oid);
Dprintf("curs_get_cast: per-cursor dict: %p", cast);
if (cast) { return cast; }
}
/* connection lookup */
cast = PyDict_GetItem(self->conn->string_types, oid);
Dprintf("curs_get_cast: per-connection dict: %p", cast);
if (cast) { return cast; }
/* global lookup */
cast = PyDict_GetItem(psyco_types, oid);
Dprintf("curs_get_cast: global dict: %p", cast);
if (cast) { return cast; }
/* fallback */
return psyco_default_cast;
}
#include <string.h>
/* curs_reset - reset the cursor to a clean state */
void
curs_reset(cursorObject *self)
{
/* initialize some variables to default values */
self->notuples = 1;
self->rowcount = -1;
self->row = 0;
Py_CLEAR(self->description);
Py_CLEAR(self->casts);
}
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