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Fix excessively long indexes when using utf8mb4 as default charset

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This commit is contained in:
Kijin Sung 2016-01-11 13:34:07 +09:00
parent 2409448cec
commit 4416c39fb2
3 changed files with 17 additions and 10 deletions
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15
classes/db/DBMysql.class.php
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@ -85,7 +85,7 @@ class DBMysql extends DB
// Set charset
$this->charset = isset($connection["db_charset"]) ? $connection["db_charset"] : 'utf8';
$this->_query('SET NAMES ' . $this->charset, $connection);
mysql_set_charset($this->charset, $result);
// select db
@mysql_select_db($connection["db_database"], $result);
@ -574,7 +574,8 @@ class DBMysql extends DB
$columns = $xml_obj->table->column;
}
// Initialize the list of indexes
// Initialize the list of columns and indexes
$column_schema = array();
$primary_list = array();
$unique_list = array();
$index_list = array();
@ -595,7 +596,11 @@ class DBMysql extends DB
// MySQL only supports 767 bytes for indexed columns.
// This is 191 characters in utf8mb4 and 255 characters in utf8.
if(($primary_key || $unique || $index) && preg_match('/(char|text)/i', $type))
if($column->attrs->utf8mb4 === 'false')
{
$column_charset = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci';
}
elseif(($primary_key || $unique || $index) && stripos($type, 'char') !== false)
{
if($size > 191 && $this->charset === 'utf8mb4')
{
@ -607,7 +612,7 @@ class DBMysql extends DB
}
}
$column_schema[] = sprintf('`%s` %s%s %s %s %s %s',
$column_schema[$name] = sprintf('`%s` %s%s %s %s %s %s',
$name,
$this->column_type[$type],
$size ? "($size)" : '',
@ -631,6 +636,8 @@ class DBMysql extends DB
}
}
// Process
// Process indexes
if(count($primary_list))
{