odbc.php

FP2 CRM code+Mysql DB

            return $this->odbcRaiseError(DB_ERROR_UNSUPPORTED);
        }
        if ($nrows === false) {
            return $this->odbcRaiseError();
        }
        return $nrows;
    }

    // }}}
    // {{{ quoteIdentifier()

    /**
     * Quotes a string so it can be safely used as a table or column name
     *
     * Use 'mssql' as the dbsyntax in the DB DSN only if you've unchecked
     * "Use ANSI quoted identifiers" when setting up the ODBC data source.
     *
     * @param string $str  identifier name to be quoted
     *
     * @return string  quoted identifier string
     *
     * @see DB_common::quoteIdentifier()
     * @since Method available since Release 1.6.0
     */
    function quoteIdentifier($str)
    {
        switch ($this->dsn['dbsyntax']) {
            case 'access':
                return '[' . $str . ']';
            case 'mssql':
            case 'sybase':
                return '[' . str_replace(']', ']]', $str) . ']';
            case 'mysql':
            case 'mysqli':
                return '`' . $str . '`';
            default:
                return '"' . str_replace('"', '""', $str) . '"';
        }
    }

    // }}}
    // {{{ quote()

    /**
     * @deprecated  Deprecated in release 1.6.0
     * @internal
     */
    function quote($str)
    {
        return $this->quoteSmart($str);
    }

    // }}}
    // {{{ nextId()

    /**
     * Returns the next free id in a sequence
     *
     * @param string  $seq_name  name of the sequence
     * @param boolean $ondemand  when true, the seqence is automatically
     *                            created if it does not exist
     *
     * @return int  the next id number in the sequence.
     *               A DB_Error object on failure.
     *
     * @see DB_common::nextID(), DB_common::getSequenceName(),
     *      DB_odbc::createSequence(), DB_odbc::dropSequence()
     */
    function nextId($seq_name, $ondemand = true)
    {
        $seqname = $this->getSequenceName($seq_name);
        $repeat = 0;
        do {
            $this->pushErrorHandling(PEAR_ERROR_RETURN);
            $result = $this->query("update ${seqname} set id = id + 1");
            $this->popErrorHandling();
            if ($ondemand && DB::isError($result) &&
                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
                $repeat = 1;
                $this->pushErrorHandling(PEAR_ERROR_RETURN);
                $result = $this->createSequence($seq_name);
                $this->popErrorHandling();
                if (DB::isError($result)) {
                    return $this->raiseError($result);
                }
                $result = $this->query("insert into ${seqname} (id) values(0)");
            } else {
                $repeat = 0;
            }
        } while ($repeat);

        if (DB::isError($result)) {
            return $this->raiseError($result);
        }

        $result = $this->query("select id from ${seqname}");
        if (DB::isError($result)) {
            return $result;
        }

        $row = $result->fetchRow(DB_FETCHMODE_ORDERED);
        if (DB::isError($row || !$row)) {
            return $row;
        }

        return $row[0];
    }

    /**
     * Creates a new sequence
     *
     * @param string $seq_name  name of the new sequence
     *
     * @return int  DB_OK on success.  A DB_Error object on failure.
     *
     * @see DB_common::createSequence(), DB_common::getSequenceName(),
     *      DB_odbc::nextID(), DB_odbc::dropSequence()
     */
    function createSequence($seq_name)
    {
        return $this->query('CREATE TABLE '
                            . $this->getSequenceName($seq_name)
                            . ' (id integer NOT NULL,'
                            . ' PRIMARY KEY(id))');
    }

    // }}}
    // {{{ dropSequence()

    /**
     * Deletes a sequence
     *
     * @param string $seq_name  name of the sequence to be deleted
     *
     * @return int  DB_OK on success.  A DB_Error object on failure.
     *
     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
     *      DB_odbc::nextID(), DB_odbc::createSequence()
     */
    function dropSequence($seq_name)
    {
        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
    }

    // }}}
    // {{{ autoCommit()

    /**
     * Enables or disables automatic commits
     *
     * @param bool $onoff  true turns it on, false turns it off
     *
     * @return int  DB_OK on success.  A DB_Error object if the driver
     *               doesn't support auto-committing transactions.
     */
    function autoCommit($onoff = false)
    {
        if (!@odbc_autocommit($this->connection, $onoff)) {
            return $this->odbcRaiseError();
        }
        return DB_OK;
    }

    // }}}
    // {{{ commit()

    /**
     * Commits the current transaction
     *
     * @return int  DB_OK on success.  A DB_Error object on failure.
     */
    function commit()
    {
        if (!@odbc_commit($this->connection)) {
            return $this->odbcRaiseError();
        }
        return DB_OK;
    }

    // }}}
    // {{{ rollback()

    /**
     * Reverts the current transaction
     *
     * @return int  DB_OK on success.  A DB_Error object on failure.
     */
    function rollback()
    {
        if (!@odbc_rollback($this->connection)) {
            return $this->odbcRaiseError();
        }
        return DB_OK;
    }

    // }}}
    // {{{ odbcRaiseError()

    /**
     * Produces a DB_Error object regarding the current problem
     *
     * @param int $errno  if the error is being manually raised pass a
     *                     DB_ERROR* constant here.  If this isn't passed
     *                     the error information gathered from the DBMS.
     *
     * @return object  the DB_Error object
     *
     * @see DB_common::raiseError(),
     *      DB_odbc::errorNative(), DB_common::errorCode()
     */
    function odbcRaiseError($errno = null)
    {
        if ($errno === null) {
            switch ($this->dbsyntax) {
                case 'access':
                    if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
                        $this->errorcode_map['07001'] = DB_ERROR_NOSUCHFIELD;
                    } else {
                        // Doing this in case mode changes during runtime.
                        $this->errorcode_map['07001'] = DB_ERROR_MISMATCH;
                    }

                    $native_code = odbc_error($this->connection);

                    // S1000 is for "General Error."  Let's be more specific.
                    if ($native_code == 'S1000') {
                        $errormsg = odbc_errormsg($this->connection);
                        static $error_regexps;
                        if (!isset($error_regexps)) {
                            $error_regexps = array(
                                '/includes related records.$/i'  => DB_ERROR_CONSTRAINT,
                                '/cannot contain a Null value/i' => DB_ERROR_CONSTRAINT_NOT_NULL,
                            );
                        }
                        foreach ($error_regexps as $regexp => $code) {
                            if (preg_match($regexp, $errormsg)) {
                                return $this->raiseError($code,
                                        null, null, null,
                                        $native_code . ' ' . $errormsg);
                            }
                        }
                        $errno = DB_ERROR;
                    } else {
                        $errno = $this->errorCode($native_code);
                    }
                    break;
                default:
                    $errno = $this->errorCode(odbc_error($this->connection));
            }
        }
        return $this->raiseError($errno, null, null, null,
                                 $this->errorNative());
    }

    // }}}
    // {{{ errorNative()

    /**
     * Gets the DBMS' native error code and message produced by the last query
     *
     * @return string  the DBMS' error code and message
     */
    function errorNative()
    {
        if (!is_resource($this->connection)) {
            return @odbc_error() . ' ' . @odbc_errormsg();
        }
        return @odbc_error($this->connection) . ' ' . @odbc_errormsg($this->connection);
    }

    // }}}
    // {{{ tableInfo()

    /**
     * Returns information about a table or a result set
     *
     * @param object|string  $result  DB_result object from a query or a
     *                                 string containing the name of a table.
     *                                 While this also accepts a query result
     *                                 resource identifier, this behavior is
     *                                 deprecated.
     * @param int            $mode    a valid tableInfo mode
     *
     * @return array  an associative array with the information requested.
     *                 A DB_Error object on failure.
     *
     * @see DB_common::tableInfo()
     * @since Method available since Release 1.7.0
     */
    function tableInfo($result, $mode = null)
    {
        if (is_string($result)) {
            /*
             * Probably received a table name.
             * Create a result resource identifier.
             */
            $id = @odbc_exec($this->connection, "SELECT * FROM $result");
            if (!$id) {
                return $this->odbcRaiseError();
            }
            $got_string = true;
        } elseif (isset($result->result)) {
            /*
             * Probably received a result object.
             * Extract the result resource identifier.
             */
            $id = $result->result;
            $got_string = false;
        } else {
            /*
             * Probably received a result resource identifier.
             * Copy it.
             * Deprecated.  Here for compatibility only.
             */
            $id = $result;
            $got_string = false;
        }

        if (!is_resource($id)) {
            return $this->odbcRaiseError(DB_ERROR_NEED_MORE_DATA);
        }

        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
            $case_func = 'strtolower';
        } else {
            $case_func = 'strval';
        }

        $count = @odbc_num_fields($id);
        $res   = array();

        if ($mode) {
            $res['num_fields'] = $count;
        }

        for ($i = 0; $i < $count; $i++) {
            $col = $i + 1;
            $res[$i] = array(
                'table' => $got_string ? $case_func($result) : '',
                'name'  => $case_func(@odbc_field_name($id, $col)),
                'type'  => @odbc_field_type($id, $col),
                'len'   => @odbc_field_len($id, $col),
                'flags' => '',
            );
            if ($mode & DB_TABLEINFO_ORDER) {
                $res['order'][$res[$i]['name']] = $i;
            }
            if ($mode & DB_TABLEINFO_ORDERTABLE) {
                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
            }
        }

        // free the result only if we were called on a table
        if ($got_string) {
            @odbc_free_result($id);
        }
        return $res;
    }

    // }}}
    // {{{ getSpecialQuery()

    /**
     * Obtains the query string needed for listing a given type of objects
     *
     * Thanks to [e-mail] and [e-mail].
     *
     * @param string $type  the kind of objects you want to retrieve
     *
     * @return string  the list of objects requested
     *
     * @access protected
     * @see DB_common::getListOf()
     * @since Method available since Release 1.7.0
     */
    function getSpecialQuery($type)
    {
        switch ($type) {
            case 'databases':
                if (!function_exists('odbc_data_source')) {
                    return null;
                }
                $res = @odbc_data_source($this->connection, SQL_FETCH_FIRST);
                if (is_array($res)) {
                    $out = array($res['server']);
                    while($res = @odbc_data_source($this->connection,
                                                   SQL_FETCH_NEXT))
                    {
                        $out[] = $res['server'];
                    }
                    return $out;
                } else {
                    return $this->odbcRaiseError();
                }
                break;
            case 'tables':
            case 'schema.tables':
                $keep = 'TABLE';
                break;
            case 'views':
                $keep = 'VIEW';
                break;
            default:
                return null;
        }

        /*
         * Removing non-conforming items in the while loop rather than
         * in the odbc_tables() call because some backends choke on this:
         *     odbc_tables($this->connection, '', '', '', 'TABLE')
         */
        $res  = @odbc_tables($this->connection);
        if (!$res) {
            return $this->odbcRaiseError();
        }
        $out = array();
        while ($row = odbc_fetch_array($res)) {
            if ($row['TABLE_TYPE'] != $keep) {
                continue;
            }
            if ($type == 'schema.tables') {
                $out[] = $row['TABLE_SCHEM'] . '.' . $row['TABLE_NAME'];
            } else {
                $out[] = $row['TABLE_NAME'];
            }
        }
        return $out;
    }

    // }}}

}

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 */

?>