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<?php
/**
* PDO Firebird driver
*
* This version has only been tested on Firebird 3.0 and PHP 7
*
* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
*
* @package ADOdb
* @link https://adodb.org Project's web site and documentation
* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
*
* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
* any later version. This means you can use it in proprietary products.
* See the LICENSE.md file distributed with this source code for details.
* @license BSD-3-Clause
* @license LGPL-2.1-or-later
*
* @copyright 2000-2013 John Lim
* @copyright 2019 Damien Regad, Mark Newnham and the ADOdb community
*/
/**
* Class ADODB_pdo_firebird
*/
class ADODB_pdo_firebird extends ADODB_pdo
{
public $dialect = 3;
public $metaTablesSQL = "select lower(rdb\$relation_name) from rdb\$relations where rdb\$relation_name not like 'RDB\$%'";
public $metaColumnsSQL = "select lower(a.rdb\$field_name), a.rdb\$null_flag, a.rdb\$default_source, b.rdb\$field_length, b.rdb\$field_scale, b.rdb\$field_sub_type, b.rdb\$field_precision, b.rdb\$field_type from rdb\$relation_fields a, rdb\$fields b where a.rdb\$field_source = b.rdb\$field_name and a.rdb\$relation_name = '%s' order by a.rdb\$field_position asc";
var $arrayClass = 'ADORecordSet_array_pdo_firebird';
function _init($parentDriver)
{
$this->pdoDriver = $parentDriver;
//$parentDriver->_bindInputArray = true;
//$parentDriver->hasTransactions = false; // // should be set to false because of PDO SQLite driver not supporting changing autocommit mode
//$parentDriver->hasInsertID = true;
}
/**
* Gets the version iformation from the server
*
* @return string[]
*/
public function serverInfo()
{
$arr['dialect'] = $this->dialect;
switch ($arr['dialect']) {
case '':
case '1':
$s = 'Firebird Dialect 1';
break;
case '2':
$s = 'Firebird Dialect 2';
break;
default:
case '3':
$s = 'Firebird Dialect 3';
break;
}
$arr['version'] = ADOConnection::_findvers($s);
$arr['description'] = $s;
return $arr;
}
/**
* Returns the tables in the database.
*
* @param mixed $ttype
* @param bool $showSchema
* @param mixed $mask
*
* @return string[]
*/
public function metaTables($ttype = false, $showSchema = false, $mask = false)
{
$ret = ADOConnection::MetaTables($ttype, $showSchema);
return $ret;
}
public function metaColumns($table, $normalize = true)
{
global $ADODB_FETCH_MODE;
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
$rs = $this->Execute(sprintf($this->metaColumnsSQL, strtoupper($table)));
$ADODB_FETCH_MODE = $save;
if ($rs === false) {
return false;
}
$retarr = array();
$dialect3 = $this->dialect == 3;
while (!$rs->EOF) { //print_r($rs->fields);
$fld = new ADOFieldObject();
$fld->name = trim($rs->fields[0]);
$this->_ConvertFieldType($fld, $rs->fields[7], $rs->fields[3], $rs->fields[4], $rs->fields[5],
$rs->fields[6], $dialect3);
if (isset($rs->fields[1]) && $rs->fields[1]) {
$fld->not_null = true;
}
if (isset($rs->fields[2])) {
$fld->has_default = true;
$d = substr($rs->fields[2], strlen('default '));
switch ($fld->type) {
case 'smallint':
case 'integer':
$fld->default_value = (int)$d;
break;
case 'char':
case 'blob':
case 'text':
case 'varchar':
$fld->default_value = (string)substr($d, 1, strlen($d) - 2);
break;
case 'double':
case 'float':
$fld->default_value = (float)$d;
break;
default:
$fld->default_value = $d;
break;
}
}
if ((isset($rs->fields[5])) && ($fld->type == 'blob')) {
$fld->sub_type = $rs->fields[5];
} else {
$fld->sub_type = null;
}
if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) {
$retarr[] = $fld;
} else {
$retarr[strtoupper($fld->name)] = $fld;
}
$rs->MoveNext();
}
$rs->Close();
if (empty($retarr)) {
return false;
} else {
return $retarr;
}
}
public function metaIndexes($table, $primary = false, $owner = false)
{
// save old fetch mode
global $ADODB_FETCH_MODE;
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== false) {
$savem = $this->SetFetchMode(false);
}
$table = strtoupper($table);
$sql = "SELECT * FROM RDB\$INDICES WHERE RDB\$RELATION_NAME = '" . $table . "'";
if (!$primary) {
$sql .= " AND RDB\$INDEX_NAME NOT LIKE 'RDB\$%'";
} else {
$sql .= " AND RDB\$INDEX_NAME NOT LIKE 'RDB\$FOREIGN%'";
}
// get index details
$rs = $this->Execute($sql);
if (!is_object($rs)) {
// restore fetchmode
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
return false;
}
$indexes = array();
while ($row = $rs->FetchRow()) {
$index = $row[0];
if (!isset($indexes[$index])) {
if (is_null($row[3])) {
$row[3] = 0;
}
$indexes[$index] = array(
'unique' => ($row[3] == 1),
'columns' => array()
);
}
$sql = "SELECT * FROM RDB\$INDEX_SEGMENTS WHERE RDB\$INDEX_NAME = '" . $index . "' ORDER BY RDB\$FIELD_POSITION ASC";
$rs1 = $this->Execute($sql);
while ($row1 = $rs1->FetchRow()) {
$indexes[$index]['columns'][$row1[2]] = $row1[1];
}
}
// restore fetchmode
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
return $indexes;
}
public function metaPrimaryKeys($table, $owner_notused = false, $internalKey = false)
{
if ($internalKey) {
return array('RDB$DB_KEY');
}
$table = strtoupper($table);
$sql = 'SELECT S.RDB$FIELD_NAME AFIELDNAME
FROM RDB$INDICES I JOIN RDB$INDEX_SEGMENTS S ON I.RDB$INDEX_NAME=S.RDB$INDEX_NAME
WHERE I.RDB$RELATION_NAME=\'' . $table . '\' and I.RDB$INDEX_NAME like \'RDB$PRIMARY%\'
ORDER BY I.RDB$INDEX_NAME,S.RDB$FIELD_POSITION';
$a = $this->GetCol($sql, false, true);
if ($a && sizeof($a) > 0) {
return $a;
}
return false;
}
public function createSequence($seqname = 'adodbseq', $startID = 1)
{
$ok = $this->execute("CREATE SEQUENCE $seqname");
if (!$ok) {
return false;
}
return $this->execute("ALTER SEQUENCE $seqname RESTART WITH " . ($startID - 1));
}
public function dropSequence($seqname = 'adodbseq')
{
$seqname = strtoupper($seqname);
return $this->Execute("DROP SEQUENCE $seqname");
}
public function _affectedrows()
{
return fbird_affected_rows($this->_transactionID ? $this->_transactionID : $this->_connectionID);
}
public function genId($seqname = 'adodbseq', $startID = 1)
{
$getnext = ("SELECT Gen_ID($seqname,1) FROM RDB\$DATABASE");
$rs = @$this->execute($getnext);
if (!$rs) {
$this->execute(("CREATE SEQUENCE $seqname"));
$this->execute("ALTER SEQUENCE $seqname RESTART WITH " . ($startID - 1) . ';');
$rs = $this->execute($getnext);
}
if ($rs && !$rs->EOF) {
$this->genID = (integer)reset($rs->fields);
} else {
$this->genID = 0; // false
}
if ($rs) {
$rs->Close();
}
return $this->genID;
}
public function selectLimit($sql, $nrows = -1, $offset = -1, $inputarr = false, $secs = 0)
{
$nrows = (integer)$nrows;
$offset = (integer)$offset;
$str = 'SELECT ';
if ($nrows >= 0) {
$str .= "FIRST $nrows ";
}
$str .= ($offset >= 0) ? "SKIP $offset " : '';
$sql = preg_replace('/^[ \t]*select/i', $str, $sql);
if ($secs) {
$rs = $this->cacheExecute($secs, $sql, $inputarr);
} else {
$rs = $this->execute($sql, $inputarr);
}
return $rs;
}
/**
* Sets the appropriate type into the $fld variable
*
* @param ADOFieldObject $fld By reference
* @param int $ftype
* @param int $flen
* @param int $fscale
* @param int $fsubtype
* @param int $fprecision
* @param bool $dialect3
*/
private function _convertFieldType(&$fld, $ftype, $flen, $fscale, $fsubtype, $fprecision, $dialect3)
{
$fscale = abs($fscale);
$fld->max_length = $flen;
$fld->scale = null;
switch ($ftype) {
case 7:
case 8:
if ($dialect3) {
switch ($fsubtype) {
case 0:
$fld->type = ($ftype == 7 ? 'smallint' : 'integer');
break;
case 1:
$fld->type = 'numeric';
$fld->max_length = $fprecision;
$fld->scale = $fscale;
break;
case 2:
$fld->type = 'decimal';
$fld->max_length = $fprecision;
$fld->scale = $fscale;
break;
} // switch
} else {
if ($fscale != 0) {
$fld->type = 'decimal';
$fld->scale = $fscale;
$fld->max_length = ($ftype == 7 ? 4 : 9);
} else {
$fld->type = ($ftype == 7 ? 'smallint' : 'integer');
}
}
break;
case 16:
if ($dialect3) {
switch ($fsubtype) {
case 0:
$fld->type = 'decimal';
$fld->max_length = 18;
$fld->scale = 0;
break;
case 1:
$fld->type = 'numeric';
$fld->max_length = $fprecision;
$fld->scale = $fscale;
break;
case 2:
$fld->type = 'decimal';
$fld->max_length = $fprecision;
$fld->scale = $fscale;
break;
} // switch
}
break;
case 10:
$fld->type = 'float';
break;
case 14:
$fld->type = 'char';
break;
case 27:
if ($fscale != 0) {
$fld->type = 'decimal';
$fld->max_length = 15;
$fld->scale = 5;
} else {
$fld->type = 'double';
}
break;
case 35:
if ($dialect3) {
$fld->type = 'timestamp';
} else {
$fld->type = 'date';
}
break;
case 12:
$fld->type = 'date';
break;
case 13:
$fld->type = 'time';
break;
case 37:
$fld->type = 'varchar';
break;
case 40:
$fld->type = 'cstring';
break;
case 261:
$fld->type = 'blob';
$fld->max_length = -1;
break;
} // switch
}
}
/**
* Class ADORecordSet_pdo_firebird
*/
class ADORecordSet_pdo_firebird extends ADORecordSet_pdo
{
public $databaseType = "pdo_firebird";
/**
* returns the field object
*
* @param int $fieldOffset Optional field offset
*
* @return object The ADOFieldObject describing the field
*/
public function fetchField($fieldOffset = 0)
{
}
}
/**
* Class ADORecordSet_array_pdo_firebird
*/
class ADORecordSet_array_pdo_firebird extends ADORecordSet_array_pdo
{
public $databaseType = "pdo_firebird";
public $canSeek = true;
/**
* returns the field object
*
* @param int $fieldOffset Optional field offset
*
* @return object The ADOFieldObject describing the field
*/
public function fetchField($fieldOffset = 0)
{
$fld = new ADOFieldObject;
$fld->name = $fieldOffset;
$fld->type = 'C';
$fld->max_length = 0;
// This needs to be populated from the metadata
$fld->not_null = false;
$fld->has_default = false;
$fld->default_value = 'null';
return $fld;
}
}
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