Source for file ibase.php
Documentation is available at ibase.php
// vim: set et ts=4 sw=4 fdm=marker:
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
// | Stig. S. Bakken, Lukas Smith |
// | All rights reserved. |
// +----------------------------------------------------------------------+
// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
// | API as well as database abstraction for PHP applications. |
// | This LICENSE is in the BSD license style. |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution. |
// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
// | Lukas Smith nor the names of his contributors may be used to endorse |
// | or promote products derived from this software without specific prior|
// | written permission. |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
// | POSSIBILITY OF SUCH DAMAGE. |
// +----------------------------------------------------------------------+
// | Author: Lukas Smith <smith@backendmedia.com> |
// | Lorenzo Alberton <l.alberton@quipo.it> |
// +----------------------------------------------------------------------+
// $Id: ibase.php,v 1.28 2005/04/19 12:53:41 lsmith Exp $
require_once 'MDB2/Driver/Datatype/Common.php';
* MDB2 Firebird/Interbase driver
* @author Lukas Smith <smith@backendmedia.com>
* @author Lorenzo Alberton <l.alberton@quipo.it>
* convert a value to a RDBMS independent MDB2 type
* @param mixed $value value to be converted
* @param int $type constant that specifies which type to convert to
* @return mixed converted value or a MDB2 error on failure
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
return sprintf('%.'. $db->options ['decimal_places']. 'f', doubleval($value)/ pow(10.0 , $db->options ['decimal_places']));
// {{{ _getTypeDeclaration()
* Obtain DBMS specific SQL code portion needed to declare an text type
* field to be used in statements like CREATE TABLE.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Integer value that determines the maximum length of the text
* field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
* Text value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
switch ($field['type']) {
$length = (isset ($field['length']) ? $field['length'] : (!PEAR ::isError ($length = $db->options ['default_text_field_length']) ? $length : 4000 ));
return 'VARCHAR ('. $length. ')';
return 'BLOB SUB_TYPE 1';
return 'BLOB SUB_TYPE 0';
return 'DOUBLE PRECISION';
return 'DECIMAL(18,'. $db->options ['decimal_places']. ')';
// {{{ _getTextDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a text type
* field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Integer value that determines the maximum length of the text
* field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
* Text value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$default = isset ($field['default']) ? ' DEFAULT'.
$this->quote($field['default'], 'text') : '';
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
return $name. ' '. $type. $default. $notnull;
// {{{ _getCLOBDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a character
* large object type field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Integer value that determines the maximum length of the large
* object field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
// {{{ _getBLOBDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a binary large
* object type field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Integer value that determines the maximum length of the large
* object field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
// {{{ _getDateDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a date type
* field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Date value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$default = isset ($field['default']) ? ' DEFAULT '.
$this->quote($field['default'], 'date') : '';
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
// {{{ _getTimeDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a time
* field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Time value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$default = isset ($field['default']) ? ' DEFAULT '.
$this->quote($field['default'], 'time') : '';
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
// {{{ _getTimestampDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a timestamp
* field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Timestamp value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$default = isset ($field['default']) ? ' DEFAULT '.
$this->quote($field['default'], 'timestamp') : '';
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
// {{{ _getFloatDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a float type
* field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Float value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$default = isset ($field['default']) ? ' DEFAULT '.
$this->quote($field['default'], 'float') : '';
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
// {{{ _getDecimalDeclaration()
* Obtain DBMS specific SQL code portion needed to declare a decimal type
* field to be used in statements like CREATE TABLE.
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
* Decimal value to be used as default for this field.
* Boolean flag that indicates whether this field is constrained
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
$default = isset ($field['default']) ? ' DEFAULT '.
$this->quote($field['default'], 'decimal') : '';
$notnull = isset ($field['notnull']) ? ' NOT NULL' : '';
* Convert a text value into a DBMS specific format that is suitable to
* compose query statements.
* @return string text string that represents the given argument value in
* a DBMS specific format.
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
if (PEAR ::isError ($connect = $db->connect ())) {
} elseif (preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
if ($match[1 ] == 'file://') {
$value = @fopen($value, 'r');
if ($db->in_transaction ) {
$value = @ibase_blob_import ($db->transaction_id , $value);
$value = @ibase_blob_import ($db->connection , $value);
* Convert a text value into a DBMS specific format that is suitable to
* compose query statements.
* @return string text string that represents the given argument value in
* a DBMS specific format.
* Convert a text value into a DBMS specific format that is suitable to
* compose query statements.
* @return string text string that represents the given argument value in
* a DBMS specific format.
* Convert a text value into a DBMS specific format that is suitable to
* compose query statements.
* @param string $value text string value that is intended to be converted.
* @return string text string that represents the given argument value in
* a DBMS specific format.
return ($value ? "'Y'" : "'N'");
* Convert a text value into a DBMS specific format that is suitable to
* compose query statements.
* @param string $value text string value that is intended to be converted.
* @return string text string that represents the given argument value in
* a DBMS specific format.
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
return (strval(round($value* pow(10.0 , $db->options ['decimal_places']))));
* retrieve LOB from the database
* @param int $lob handle to a lob created by the createLob() function
* @return mixed MDB2_OK on success, a MDB2 error on failure
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
if (!isset ($db->lobs [$lob])) {
'_retrieveLOB: it was not specified a valid lob');
if (!isset ($db->lobs [$lob]['handle'])) {
$db->lobs [$lob]['handle'] =
@ibase_blob_open ($db->lobs [$lob]['value']);
if (!$db->lobs [$lob]['handle']) {
unset ($db->lobs [$lob]['value']);
'_retrieveLOB: Could not open fetched large object field' . @ibase_errmsg ());
* Determine whether it was reached the end of the large object and
* therefore there is no more data to be read for the its input stream.
* @param int $lob handle to a lob created by the createLOB() function
* @return mixed true or false on success, a MDB2 error on failure
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
if (PEAR ::isError ($lobresult)) {
return isset ($db->lobs [$lob]['EndOfLOB']);
* Read data from large object input stream.
* @param int $lob handle to a lob created by the createLob() function
* @param blob $data reference to a variable that will hold data to be
* read from the large object input stream
* @param int $length integer value that indicates the largest ammount of
* data to be read from the large object input stream.
* @return mixed length on success, a MDB2 error on failure
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
if (PEAR ::isError ($lobresult = $this->_retrieveLOB($lob))) {
$data = @ibase_blob_get ($db->lobs [$lob]['handle'], $length);
'Read Result LOB: ' . @ibase_errmsg ());
if (($length = strlen($data)) == 0 ) {
$db->lobs [$lob]['EndOfLOB'] = 1;
// {{{ _destroyResultLOB()
* Free any resources allocated during the lifetime of the large object
* @param int $lob handle to a lob created by the createLob() function
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
if (isset ($db->lobs [$lob])) {
if (isset ($db->lobs [$lob]['value'])) {
@ibase_blob_close ($db->lobs [$lob]['handle']);
// {{{ mapNativeDatatype()
* Maps a native array description of a field to a MDB2 datatype and length
* @param array $field native field description
* @return array containing the various possible types and the length
$db = & $GLOBALS['_MDB2_databases'][$this->db_index];
$length = $field['attlen'];
$length = $field['atttypmod']-4;
'getTableFieldDefinition: unknown database attribute type');
return array ($type, $length);
Documentation generated on Mon, 11 Mar 2019 14:20:17 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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