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Ha- ndle checking for duplicate usernames in chunks (Bug #17285 - Patch by A_Jelly_Doughnut)t)

git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@9113 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Nils Adermann
2008-11-24 19:23:23 +00:00
parent 9a7d2a3736
commit 05e8d9ee09
3 changed files with 30 additions and 39 deletions

View File

@@ -1698,7 +1698,7 @@ function phpbb_disallowed_username($username)
* Checks whether there are any usernames on the old board that would map to the same
* username_clean on phpBB3. Prints out a list if any exist and exits.
*/
function phpbb_check_username_collisions()
function phpbb_create_userconv_table()
{
global $db, $src_db, $convert, $table_prefix, $user, $lang;
@@ -1735,53 +1735,53 @@ function phpbb_check_username_collisions()
}
// create a temporary table in which we store the clean usernames
$drop_sql = 'DROP TABLE ' . $table_prefix . 'userconv';
$drop_sql = 'DROP TABLE ' . USERCONV_TABLE;
switch ($map_dbms)
{
case 'firebird':
$create_sql = 'CREATE TABLE ' . $table_prefix . 'userconv (
$create_sql = 'CREATE TABLE ' . USERCONV_TABLE . ' (
user_id INTEGER NOT NULL,
username_clean VARCHAR(255) CHARACTER SET UTF8 DEFAULT \'\' NOT NULL COLLATE UNICODE
)';
break;
case 'mssql':
$create_sql = 'CREATE TABLE [' . $table_prefix . 'userconv] (
$create_sql = 'CREATE TABLE [' . USERCONV_TABLE . '] (
[user_id] [int] NOT NULL ,
[username_clean] [varchar] (255) DEFAULT (\'\') NOT NULL
)';
break;
case 'mysql_40':
$create_sql = 'CREATE TABLE ' . $table_prefix . 'userconv (
$create_sql = 'CREATE TABLE ' . USERCONV_TABLE . ' (
user_id mediumint(8) NOT NULL,
username_clean blob NOT NULL
)';
break;
case 'mysql_41':
$create_sql = 'CREATE TABLE ' . $table_prefix . 'userconv (
$create_sql = 'CREATE TABLE ' . USERCONV_TABLE . ' (
user_id mediumint(8) NOT NULL,
username_clean varchar(255) DEFAULT \'\' NOT NULL
) CHARACTER SET `utf8` COLLATE `utf8_bin`';
break;
case 'oracle':
$create_sql = 'CREATE TABLE ' . $table_prefix . 'userconv (
$create_sql = 'CREATE TABLE ' . USERCONV_TABLE . ' (
user_id number(8) NOT NULL,
username_clean varchar2(255) DEFAULT \'\'
)';
break;
case 'postgres':
$create_sql = 'CREATE TABLE ' . $table_prefix . 'userconv (
$create_sql = 'CREATE TABLE ' . USERCONV_TABLE . ' (
user_id INT4 DEFAULT \'0\',
username_clean varchar_ci DEFAULT \'\' NOT NULL
)';
break;
case 'sqlite':
$create_sql = 'CREATE TABLE ' . $table_prefix . 'userconv (
$create_sql = 'CREATE TABLE ' . USERCONV_TABLE . ' (
user_id INTEGER NOT NULL DEFAULT \'0\',
username_clean varchar(255) NOT NULL DEFAULT \'\'
)';
@@ -1792,37 +1792,15 @@ function phpbb_check_username_collisions()
$db->sql_query($drop_sql);
$db->sql_return_on_error(false);
$db->sql_query($create_sql);
}
// now select all user_ids and usernames and then convert the username (this can take quite a while!)
$sql = 'SELECT user_id, username
FROM ' . $convert->src_table_prefix . 'users';
$result = $src_db->sql_query($sql);
$insert_ary = array();
$i = 0;
while ($row = $src_db->sql_fetchrow($result))
{
$clean_name = utf8_clean_string(phpbb_set_default_encoding($row['username']));
$insert_ary[] = array('user_id' => (int) $row['user_id'], 'username_clean' => (string) $clean_name);
if ($i % 1000 == 999)
{
$db->sql_multi_insert($table_prefix . 'userconv', $insert_ary);
$insert_ary = array();
}
$i++;
}
$src_db->sql_freeresult($result);
if (sizeof($insert_ary))
{
$db->sql_multi_insert($table_prefix . 'userconv', $insert_ary);
}
unset($insert_ary);
function phpbb_check_username_collisions()
{
global $db, $src_db, $convert, $table_prefix, $user, $lang;
// now find the clean version of the usernames that collide
$sql = 'SELECT username_clean
FROM ' . $table_prefix . 'userconv
FROM ' . USERCONV_TABLE .'
GROUP BY username_clean
HAVING COUNT(user_id) > 1';
$result = $db->sql_query($sql);
@@ -1838,7 +1816,7 @@ function phpbb_check_username_collisions()
if (sizeof($colliding_names))
{
$sql = 'SELECT user_id, username_clean
FROM ' . $table_prefix . 'userconv
FROM ' . USERCONV_TABLE . '
WHERE ' . $db->sql_in_set('username_clean', $colliding_names);
$result = $db->sql_query($sql);
unset($colliding_names);
@@ -1881,6 +1859,7 @@ function phpbb_check_username_collisions()
$convert->p_master->error('<span style="color:red">' . $user->lang['COLLIDING_USERNAMES_FOUND'] . '</span></b><br /><br />' . $list . '<b>', __LINE__, __FILE__);
}
$drop_sql = 'DROP TABLE ' . USERCONV_TABLE;
$db->sql_query($drop_sql);
}