1 /* util.c - various utility functions

     2  *

     3  * Copyright (C) 2005-2007 Gerhard Häring <gh@ghaering.de>

     4  *

     5  * This file is part of pysqlite.

     6  *

     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.

    10  *

    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:

    14  *

    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.

    22  */

    23 

    24 #include "module.h"

    25 #include "connection.h"

    26 

    27 int pysqlite_step(sqlite3_stmt* statement, pysqlite_Connection* connection)

    28 {

    29     int rc;

    30 

    31     if (statement == NULL) {

    32         /* this is a workaround for SQLite 3.5 and later. it now apparently

    33          * returns NULL for "no-operation" statements */

    34         rc = SQLITE_OK;

    35     } else {

    36         Py_BEGIN_ALLOW_THREADS

    37         rc = sqlite3_step(statement);

    38         Py_END_ALLOW_THREADS

    39     }

    40 

    41     return rc;

    42 }

    43 

    44 /**

    45  * Checks the SQLite error code and sets the appropriate DB-API exception.

    46  * Returns the error code (0 means no error occurred).

    47  */

    48 int _pysqlite_seterror(sqlite3* db, sqlite3_stmt* st)

    49 {

    50     int errorcode;

    51 

    52     /* SQLite often doesn't report anything useful, unless you reset the statement first */

    53     if (st != NULL) {

    54         (void)sqlite3_reset(st);

    55     }

    56 

    57     errorcode = sqlite3_errcode(db);

    58 

    59     switch (errorcode)

    60     {

    61         case SQLITE_OK:

    62             PyErr_Clear();

    63             break;

    64         case SQLITE_INTERNAL:

    65         case SQLITE_NOTFOUND:

    66             PyErr_SetString(pysqlite_InternalError, sqlite3_errmsg(db));

    67             break;

    68         case SQLITE_NOMEM:

    69             (void)PyErr_NoMemory();

    70             break;

    71         case SQLITE_ERROR:

    72         case SQLITE_PERM:

    73         case SQLITE_ABORT:

    74         case SQLITE_BUSY:

    75         case SQLITE_LOCKED:

    76         case SQLITE_READONLY:

    77         case SQLITE_INTERRUPT:

    78         case SQLITE_IOERR:

    79         case SQLITE_FULL:

    80         case SQLITE_CANTOPEN:

    81         case SQLITE_PROTOCOL:

    82         case SQLITE_EMPTY:

    83         case SQLITE_SCHEMA:

    84             PyErr_SetString(pysqlite_OperationalError, sqlite3_errmsg(db));

    85             break;

    86         case SQLITE_CORRUPT:

    87             PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));

    88             break;

    89         case SQLITE_TOOBIG:

    90             PyErr_SetString(pysqlite_DataError, sqlite3_errmsg(db));

    91             break;

    92         case SQLITE_CONSTRAINT:

    93         case SQLITE_MISMATCH:

    94             PyErr_SetString(pysqlite_IntegrityError, sqlite3_errmsg(db));

    95             break;

    96         case SQLITE_MISUSE:

    97             PyErr_SetString(pysqlite_ProgrammingError, sqlite3_errmsg(db));

    98             break;

    99         default:

   100             PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));

   101             break;

   102     }

   103 

   104     return errorcode;

   105 }

   106