Added updates with respect to recent changes to TimedRotatingFileHandler.
[python.git] / Modules / _sqlite / row.c
blob8f155d92a4d7d13ffeceb99decaa6a394cde9773
1 /* row.c - an enhanced tuple for database rows
3 * Copyright (C) 2005-2006 Gerhard Häring <gh@ghaering.de>
5 * This file is part of pysqlite.
7 * This software is provided 'as-is', without any express or implied
8 * warranty. In no event will the authors be held liable for any damages
9 * arising from the use of this software.
11 * Permission is granted to anyone to use this software for any purpose,
12 * including commercial applications, and to alter it and redistribute it
13 * freely, subject to the following restrictions:
15 * 1. The origin of this software must not be misrepresented; you must not
16 * claim that you wrote the original software. If you use this software
17 * in a product, an acknowledgment in the product documentation would be
18 * appreciated but is not required.
19 * 2. Altered source versions must be plainly marked as such, and must not be
20 * misrepresented as being the original software.
21 * 3. This notice may not be removed or altered from any source distribution.
24 #include "row.h"
25 #include "cursor.h"
26 #include "sqlitecompat.h"
28 void pysqlite_row_dealloc(pysqlite_Row* self)
30 Py_XDECREF(self->data);
31 Py_XDECREF(self->description);
33 Py_TYPE(self)->tp_free((PyObject*)self);
36 int pysqlite_row_init(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
38 PyObject* data;
39 pysqlite_Cursor* cursor;
41 self->data = 0;
42 self->description = 0;
44 if (!PyArg_ParseTuple(args, "OO", &cursor, &data)) {
45 return -1;
48 if (!PyObject_IsInstance((PyObject*)cursor, (PyObject*)&pysqlite_CursorType)) {
49 PyErr_SetString(PyExc_TypeError, "instance of cursor required for first argument");
50 return -1;
53 if (!PyTuple_Check(data)) {
54 PyErr_SetString(PyExc_TypeError, "tuple required for second argument");
55 return -1;
58 Py_INCREF(data);
59 self->data = data;
61 Py_INCREF(cursor->description);
62 self->description = cursor->description;
64 return 0;
67 PyObject* pysqlite_row_subscript(pysqlite_Row* self, PyObject* idx)
69 long _idx;
70 char* key;
71 int nitems, i;
72 char* compare_key;
74 char* p1;
75 char* p2;
77 PyObject* item;
79 if (PyInt_Check(idx)) {
80 _idx = PyInt_AsLong(idx);
81 item = PyTuple_GetItem(self->data, _idx);
82 Py_XINCREF(item);
83 return item;
84 } else if (PyLong_Check(idx)) {
85 _idx = PyLong_AsLong(idx);
86 item = PyTuple_GetItem(self->data, _idx);
87 Py_XINCREF(item);
88 return item;
89 } else if (PyString_Check(idx)) {
90 key = PyString_AsString(idx);
92 nitems = PyTuple_Size(self->description);
94 for (i = 0; i < nitems; i++) {
95 compare_key = PyString_AsString(PyTuple_GET_ITEM(PyTuple_GET_ITEM(self->description, i), 0));
96 if (!compare_key) {
97 return NULL;
100 p1 = key;
101 p2 = compare_key;
103 while (1) {
104 if ((*p1 == (char)0) || (*p2 == (char)0)) {
105 break;
108 if ((*p1 | 0x20) != (*p2 | 0x20)) {
109 break;
112 p1++;
113 p2++;
116 if ((*p1 == (char)0) && (*p2 == (char)0)) {
117 /* found item */
118 item = PyTuple_GetItem(self->data, i);
119 Py_INCREF(item);
120 return item;
125 PyErr_SetString(PyExc_IndexError, "No item with that key");
126 return NULL;
127 } else if (PySlice_Check(idx)) {
128 PyErr_SetString(PyExc_ValueError, "slices not implemented, yet");
129 return NULL;
130 } else {
131 PyErr_SetString(PyExc_IndexError, "Index must be int or string");
132 return NULL;
136 Py_ssize_t pysqlite_row_length(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
138 return PyTuple_GET_SIZE(self->data);
141 PyObject* pysqlite_row_keys(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
143 PyObject* list;
144 int nitems, i;
146 list = PyList_New(0);
147 if (!list) {
148 return NULL;
150 nitems = PyTuple_Size(self->description);
152 for (i = 0; i < nitems; i++) {
153 if (PyList_Append(list, PyTuple_GET_ITEM(PyTuple_GET_ITEM(self->description, i), 0)) != 0) {
154 Py_DECREF(list);
155 return NULL;
159 return list;
162 static int pysqlite_row_print(pysqlite_Row* self, FILE *fp, int flags)
164 return (&PyTuple_Type)->tp_print(self->data, fp, flags);
167 static PyObject* pysqlite_iter(pysqlite_Row* self)
169 return PyObject_GetIter(self->data);
172 PyMappingMethods pysqlite_row_as_mapping = {
173 /* mp_length */ (lenfunc)pysqlite_row_length,
174 /* mp_subscript */ (binaryfunc)pysqlite_row_subscript,
175 /* mp_ass_subscript */ (objobjargproc)0,
178 static PyMethodDef pysqlite_row_methods[] = {
179 {"keys", (PyCFunction)pysqlite_row_keys, METH_NOARGS,
180 PyDoc_STR("Returns the keys of the row.")},
181 {NULL, NULL}
185 PyTypeObject pysqlite_RowType = {
186 PyVarObject_HEAD_INIT(NULL, 0)
187 MODULE_NAME ".Row", /* tp_name */
188 sizeof(pysqlite_Row), /* tp_basicsize */
189 0, /* tp_itemsize */
190 (destructor)pysqlite_row_dealloc, /* tp_dealloc */
191 (printfunc)pysqlite_row_print, /* tp_print */
192 0, /* tp_getattr */
193 0, /* tp_setattr */
194 0, /* tp_compare */
195 0, /* tp_repr */
196 0, /* tp_as_number */
197 0, /* tp_as_sequence */
198 0, /* tp_as_mapping */
199 0, /* tp_hash */
200 0, /* tp_call */
201 0, /* tp_str */
202 0, /* tp_getattro */
203 0, /* tp_setattro */
204 0, /* tp_as_buffer */
205 Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
206 0, /* tp_doc */
207 (traverseproc)0, /* tp_traverse */
208 0, /* tp_clear */
209 0, /* tp_richcompare */
210 0, /* tp_weaklistoffset */
211 (getiterfunc)pysqlite_iter, /* tp_iter */
212 0, /* tp_iternext */
213 pysqlite_row_methods, /* tp_methods */
214 0, /* tp_members */
215 0, /* tp_getset */
216 0, /* tp_base */
217 0, /* tp_dict */
218 0, /* tp_descr_get */
219 0, /* tp_descr_set */
220 0, /* tp_dictoffset */
221 (initproc)pysqlite_row_init, /* tp_init */
222 0, /* tp_alloc */
223 0, /* tp_new */
224 0 /* tp_free */
227 extern int pysqlite_row_setup_types(void)
229 pysqlite_RowType.tp_new = PyType_GenericNew;
230 pysqlite_RowType.tp_as_mapping = &pysqlite_row_as_mapping;
231 return PyType_Ready(&pysqlite_RowType);