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<?php
/**
* This is a utility class, every method is static.
*
* $Horde: horde/lib/SQL.php,v 1.10.2.5 2004/09/03 14:46:00 chuck Exp $
*
* Copyright 1999-2003 Chuck Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @version $Revision: 1.10.2.5 $
* @since Horde 2.2
* @package horde
*/
class Horde_SQL {
function readBlob($dbh, $table, $field, $criteria)
{
if (!count($criteria)) {
return PEAR::raiseError('You must specify the fetch criteria');
}
$where = '';
switch ($dbh->dbsyntax) {
case 'oci8':
foreach ($criteria as $key => $value) {
if (!empty($where)) {
$where .= ' AND ';
}
if (empty($value)) {
$where .= $key . ' IS NULL';
} else {
$where .= $key . ' = ' . $dbh->quote($value);
}
}
$statement = OCIParse($dbh->connection,
sprintf('SELECT %s FROM %s WHERE %s',
$field, $table, $where));
OCIExecute($statement);
if (OCIFetchInto($statement, $lob)) {
$result = $lob[0]->load();
} else {
$result = PEAR::raiseError('Unable to load SQL Data');
}
OCIFreeStatement($statement);
break;
default:
foreach ($criteria as $key => $value) {
if (!empty($where)) {
$where .= ' AND ';
}
$where .= $key . ' = ' . $dbh->quote($value);
}
$result = $dbh->getOne(sprintf('SELECT %s FROM %s WHERE %s',
$field, $table, $where));
switch ($dbh->dbsyntax) {
case 'pgsql':
$result = pack('H' . strlen($result), $result);
break;
}
}
return $result;
}
function insertBlob($dbh, $table, $field, $data, $attributes)
{
$fields = array();
$values = array();
switch ($dbh->dbsyntax) {
case 'oci8':
foreach ($attributes as $key => $value) {
$fields[] = $key;
$values[] = $dbh->quote($value);
}
$statement = OCIParse($dbh->connection,
sprintf('INSERT INTO %s (%s, %s)' .
' VALUES (%s, EMPTY_BLOB()) RETURNING %s INTO :blob',
$table,
implode(', ', $fields),
$field,
implode(', ', $values),
$field));
$lob = OCINewDescriptor($dbh->connection);
OCIBindByName($statement, ':blob', $lob, -1, SQLT_BLOB);
OCIExecute($statement, OCI_DEFAULT);
$lob->save($data);
$result = OCICommit($dbh->connection);
$lob->free();
OCIFreeStatement($statement);
return $result ? true : PEAR::raiseError('Unknown Error');
default:
foreach ($attributes as $key => $value) {
$fields[] = $key;
$values[] = $value;
}
$query = sprintf('INSERT INTO %s (%s, %s) VALUES (%s)',
$table,
implode(', ', $fields),
$field,
'?' . str_repeat(', ?', count($values)));
break;
}
switch ($dbh->dbsyntax) {
case 'mssql':
case 'pgsql':
$values[] = bin2hex($data);
break;
default:
$values[] = $data;
}
/* Log the query at a DEBUG log level. */
Horde::logMessage(sprintf('SQL Query by Horde_SQL::insertBlob(): query = "%s"', $query),
__FILE__, __LINE__, LOG_DEBUG);
/* Execute the query. */
$stmt = $this->_db->prepare($query);
return $this->_db->execute($stmt, $values);
}
function updateBlob($dbh, $table, $field, $data, $where, $alsoupdate)
{
$fields = array();
$values = array();
switch ($dbh->dbsyntax) {
case 'oci8':
$wherestring = '';
foreach ($where as $key => $value) {
if (!empty($wherestring)) {
$wherestring .= ' AND ';
}
$wherestring .= $key . ' = ' . $dbh->quote($value);
}
$statement = OCIParse($dbh->connection,
sprintf('SELECT %s FROM %s WHERE %s FOR UPDATE',
$field,
$table,
$wherestring));
OCIExecute($statement, OCI_DEFAULT);
OCIFetchInto($statement, $lob);
$lob[0]->save($data);
$result = OCICommit($dbh->connection);
$lob[0]->free();
OCIFreeStatement($statement);
return $result ? true : PEAR::raiseError('Unknown Error');
default:
$updatestring = '';
$values = array();
foreach ($alsoupdate as $key => $value) {
$updatestring .= $key . ' = ?, ';
$values[] = $value;
}
$updatestring .= $field . ' = ?';
switch ($dbh->dbsyntax) {
case 'mssql':
case 'pgsql':
$values[] = bin2hex($data);
break;
default:
$values[] = $data;
}
$wherestring = '';
foreach ($where as $key => $value) {
if (!empty($wherestring)) {
$wherestring .= ' AND ';
}
$wherestring .= $key . ' = ?';
$values[] = $value;
}
$query = sprintf('UPDATE %s SET %s WHERE %s',
$table,
$updatestring,
$wherestring);
break;
}
/* Log the query at a DEBUG log level. */
Horde::logMessage(sprintf('SQL Query by Horde_SQL::updateBlob(): query = "%s"', $query),
__FILE__, __LINE__, LOG_DEBUG);
/* Execute the query. */
$stmt = $dbh->prepare($query);
return $dbh->execute($stmt, $values);
}
}
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