diff options
Diffstat (limited to 'phpBB/phpbb/db/tools/tools.php')
| -rw-r--r-- | phpBB/phpbb/db/tools/tools.php | 57 |
1 files changed, 42 insertions, 15 deletions
diff --git a/phpBB/phpbb/db/tools/tools.php b/phpBB/phpbb/db/tools/tools.php index 9273d69cd6..2f891e43d5 100644 --- a/phpBB/phpbb/db/tools/tools.php +++ b/phpBB/phpbb/db/tools/tools.php @@ -941,16 +941,19 @@ class tools implements tools_interface continue; } - // These DBMS prefix index name with the table name switch ($this->sql_layer) { + // These DBMS prefix index name with the table name case 'oracle': case 'sqlite3': - $row[$col] = substr($row[$col], strlen($table_name) + 1); + $new_index_name = $this->check_index_name_length($table_name, $table_name . '_' . $index_name, false); + break; + default: + $new_index_name = $this->check_index_name_length($table_name, $index_name, false); break; } - if (strtolower($row[$col]) == strtolower($index_name)) + if (strtolower($row[$col]) == strtolower($new_index_name)) { $this->db->sql_freeresult($result); return true; @@ -1359,12 +1362,14 @@ class tools implements tools_interface { case 'mysql_40': case 'mysql_41': + $index_name = $this->check_index_name_length($table_name, $index_name, false); $statements[] = 'DROP INDEX ' . $index_name . ' ON ' . $table_name; break; case 'oracle': case 'sqlite3': - $statements[] = 'DROP INDEX ' . $table_name . '_' . $index_name; + $index_name = $this->check_index_name_length($table_name, $table_name . '_' . $index_name, false); + $statements[] = 'DROP INDEX ' . $index_name; break; } @@ -1487,17 +1492,17 @@ class tools implements tools_interface { $statements = array(); - $this->check_index_name_length($table_name, $index_name); - switch ($this->sql_layer) { case 'oracle': case 'sqlite3': - $statements[] = 'CREATE UNIQUE INDEX ' . $table_name . '_' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')'; + $index_name = $this->check_index_name_length($table_name, $table_name . '_' . $index_name); + $statements[] = 'CREATE UNIQUE INDEX ' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')'; break; case 'mysql_40': case 'mysql_41': + $index_name = $this->check_index_name_length($table_name, $index_name); $statements[] = 'ALTER TABLE ' . $table_name . ' ADD UNIQUE INDEX ' . $index_name . '(' . implode(', ', $column) . ')'; break; } @@ -1512,8 +1517,6 @@ class tools implements tools_interface { $statements = array(); - $this->check_index_name_length($table_name, $index_name); - // remove index length unless MySQL4 if ('mysql_40' != $this->sql_layer) { @@ -1524,7 +1527,8 @@ class tools implements tools_interface { case 'oracle': case 'sqlite3': - $statements[] = 'CREATE INDEX ' . $table_name . '_' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')'; + $index_name = $this->check_index_name_length($table_name, $table_name . '_' . $index_name); + $statements[] = 'CREATE INDEX ' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')'; break; case 'mysql_40': @@ -1539,6 +1543,7 @@ class tools implements tools_interface } // no break case 'mysql_41': + $index_name = $this->check_index_name_length($table_name, $index_name); $statements[] = 'ALTER TABLE ' . $table_name . ' ADD INDEX ' . $index_name . ' (' . implode(', ', $column) . ')'; break; } @@ -1551,15 +1556,37 @@ class tools implements tools_interface * * @param string $table_name * @param string $index_name + * @param bool $throw_error + * @return string The index name, shortened if too long */ - protected function check_index_name_length($table_name, $index_name) + protected function check_index_name_length($table_name, $index_name, $throw_error = true) { - $table_prefix = substr(CONFIG_TABLE, 0, -6); // strlen(config) - if (strlen($table_name . $index_name) - strlen($table_prefix) > 24) + if (strlen($index_name) > 30) { - $max_length = strlen($table_prefix) + 24; - trigger_error("Index name '{$table_name}_$index_name' on table '$table_name' is too long. The maximum is $max_length characters.", E_USER_ERROR); + // Try removing the table prefix if it's at the beginning + $table_prefix = substr(CONFIG_TABLE, 0, -6); // strlen(config) + if (strpos($index_name, $table_prefix) === 0) + { + $index_name = substr($index_name, strlen($table_prefix)); + return $this->check_index_name_length($table_name, $index_name, $throw_error); + } + + // Try removing the remaining suffix part of table name then + $table_suffix = substr($table_name, strlen($table_prefix)); + if (strpos($index_name, $table_suffix) === 0) + { + // Remove the suffix and underscore separator between table_name and index_name + $index_name = substr($index_name, strlen($table_suffix) + 1); + return $this->check_index_name_length($table_name, $index_name, $throw_error); + } + + if ($throw_error) + { + trigger_error("Index name '$index_name' on table '$table_name' is too long. The maximum is 30 characters.", E_USER_ERROR); + } } + + return $index_name; } /** |