mirror/php-phpbb
1
0
Fork 0
mirror of https://github.com/phpbb/phpbb.git synced 2025-07-30 21:40:43 +02:00
Code Issues Releases Wiki Activity

Transaction capability moved to DB classes

Browse Source 
git-svn-id: file:///svn/phpbb/trunk@546 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen
2001-07-03 22:47:26 +00:00
parent 8baa46e285
commit 356f845abc
5 changed files with 104 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
phpBB/db/mssql.php
View File

@@ -29,6 +29,8 @@ class sql_db
var $db_connect_id;
var $query_result;
var $in_transaction = 0;
var $transaction_name;
var $query_limit_offset;
var $query_limit_numrows;
var $query_limit_success;
@@ -91,7 +93,7 @@ class sql_db
//
// Query method
//
function sql_query($query = "")
function sql_query($query = "", $transaction = FALSE)
{
//
// Remove any pre-existing queries
@@ -100,27 +102,30 @@ class sql_db
unset($this->row);
if($query != "")
{
if($transaction == BEGIN_TRANSACTION)
{
$result = mssql_query("BEGIN TRANSACTION", $this->db_connect_id);
if(!$result)
{
return false;
}
$this->in_transaction = TRUE;
}
//
// Does query contain any LIMIT code?
// If so pull out relevant start and num_results
// This isn't terribly easy with MSSQL, whatever
// you do will potentially impact performance
// compared to an 'in-built' limit
// Does query contain any LIMIT code? If so pull out relevant start and num_results
// This isn't terribly easy with MSSQL, whatever you do will potentially impact
// performance compared to an 'in-built' limit
//
// Another issue is the 'lack' of a returned true
// value when a query is valid but has no result
// set (as with all the other DB interfaces).
// It seems though that it's 'fair' to say that if
// a query returns a false result (ie. no resource id)
// then the SQL was valid but had no result set. If the
// query returns nothing but the rowcount returns
// something then there's a problem. This
// may well be a false assumption though ... needs
// checking under Windows itself.
// Another issue is the 'lack' of a returned true value when a query is valid but has
// no result set (as with all the other DB interfaces). It seems though that it's
// 'fair' to say that if a query returns a false result (ie. no resource id) then the
// SQL was valid but had no result set. If the query returns nothing but the rowcount
// returns something then there's a problem. This may well be a false assumption though
// ... needs checking under Windows itself.
//
if(eregi("LIMIT", $query))
{
"HERE";
preg_match("/^(.*)LIMIT ([0-9]+)[, ]*([0-9]+)*/s", $query, $limits);
$query = $limits[1];
@@ -135,15 +140,17 @@ class sql_db
$num_rows = $limits[2];
}
"<br>".$query."<br>";
@mssql_query("SET ROWCOUNT ".($row_offset + $num_rows));
$this->query_result = @mssql_query($query, $this->db_connect_id);
@mssql_query("SET ROWCOUNT 0");
$this->query_limit_success[$this->query_result] = true;
$this->query_limit_offset[$this->query_result] = -1;
$this->query_limit_numrows[$this->query_result] = $num_rows;
if($this->query_result && $row_offset > 0)
{
$result = @mssql_data_seek($this->query_result, $row_offset);
@@ -163,47 +170,69 @@ class sql_db
$next_id_query = @mssql_query("SELECT @@IDENTITY AS this_id");
$this->next_id[$this->query_result] = $this->sql_fetchfield("this_id", -1, $next_id_query);
}
else
{
if($this->in_transaction)
{
mssql_query("ROLLBACK", $this->db_connect_id);
$this->in_transaction = FALSE;
}
return false;
}
$this->query_limit_offset[$this->query_result] = -1;
$this->query_limit_numrows[$this->query_result] = -1;
}
else
{
//
// This needs a little more work
// before we take it public. SELECT needs
// separating out, with other queries
// (UPDATE, DELETE, etc.) having a uniqid
// $this-
//
if(eregi("SELECT", $query))
{
$this->query_result = @@mssql_query($query, $this->db_connect_id);
$this->query_result = @mssql_query($query, $this->db_connect_id);
}
else
{
$this->query_result = @@mssql_query($query, $this->db_connect_id);
$this->query_result = @mssql_query($query, $this->db_connect_id);
if($this->query_result)
{
$this->query_result = uniqid(rand());
}
}
if($this->query_result)
{
$affected_query = @mssql_query("SELECT @@ROWCOUNT AS this_count");
$this->affected_rows[$this->query_result] = $this->sql_fetchfield("this_count", -1, $affected_query);
$this->query_limit_offset[$this->query_result] = -1;
$this->query_limit_numrows[$this->query_result] = -1;
}
else
{
if($this->in_transaction)
{
mssql_query("ROLLBACK", $this->db_connect_id);
$this->in_transaction = FALSE;
}
return false;
}
}
if($transaction == END_TRANSACTION)
{
$result = mssql_query("COMMIT", $this->db_connect_id);
}
return $this->query_result;
}
else
{
if($transaction == END_TRANSACTION)
{
$result = mssql_query("COMMIT", $this->db_connect_id);
$this->in_transaction = FALSE;
}
return false;
}
}
@@ -436,7 +465,7 @@ class sql_db
}
if($query_id)
{
return $this->next_id[$query_id]+1;
return $this->next_id[$query_id];
}
else
{
@@ -469,4 +498,4 @@ class sql_db
} // if ... define
?>
?>