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[ticket/12012] Move MS SQL server comparison into a method

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PHPBB3-12012
This commit is contained in:
Joas Schilling
2014-04-24 14:53:33 +02:00
parent 4775ad59b0
commit bbc2e6c7b2
1 changed files with 28 additions and 18 deletions
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46
phpBB/phpbb/db/tools.php
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@@ -1869,7 +1869,7 @@ class tools
}
// Drop default value constraint
$result = $this->mssql_drop_default_constraints($table_name, $column_name);
$result = $this->mssql_get_drop_default_constraints_queries($table_name, $column_name);
$statements = array_merge($statements, $result);
// Remove the column
@@ -2384,7 +2384,7 @@ class tools
}
// Drop default value constraint
$result = $this->mssql_drop_default_constraints($table_name, $column_name);
$result = $this->mssql_get_drop_default_constraints_queries($table_name, $column_name);
$statements = array_merge($statements, $result);
// Change the column
@@ -2542,7 +2542,7 @@ class tools
}
/**
* Drop the default constraints of a column
* Get queries to drop the default constraints of a column
*
* We need to drop the default constraints of a column,
* before being able to change their type or deleting them.
@@ -2551,16 +2551,10 @@ class tools
* @param string $column_name
* @return array Array with SQL statements
*/
protected function mssql_drop_default_constraints($table_name, $column_name)
protected function mssql_get_drop_default_constraints_queries($table_name, $column_name)
{
$statements = array();
$sql = "SELECT CAST(SERVERPROPERTY('productversion') AS VARCHAR(25)) AS mssql_version";
$result = $this->db->sql_query($sql);
$mssql_server_properties = $this->db->sql_fetchrow($result);
$this->db->sql_freeresult($result);
// Remove default constraints
if ($mssql_server_properties['mssql_version'][0] == '8') // SQL Server 2000
if ($this->mssql_is_sql_server_2000())
{
// http://msdn.microsoft.com/en-us/library/aa175912%28v=sql.80%29.aspx
// Deprecated in SQL Server 2005
@@ -2603,12 +2597,7 @@ class tools
protected function mssql_get_existing_indexes($table_name, $column_name)
{
$existing_indexes = array();
$sql = "SELECT CAST(SERVERPROPERTY('productversion') AS VARCHAR(25)) AS mssql_version";
$result = $this->db->sql_query($sql);
$mssql_server_properties = $this->db->sql_fetchrow($result);
$this->db->sql_freeresult($result);
if ($mssql_server_properties['mssql_version'][0] == '8') // SQL Server 2000
if ($this->mssql_is_sql_server_2000())
{
// http://msdn.microsoft.com/en-us/library/aa175912%28v=sql.80%29.aspx
// Deprecated in SQL Server 2005
@@ -2650,7 +2639,7 @@ class tools
return array();
}
if ($mssql_server_properties['mssql_version'][0] == '8') // SQL Server 2000
if ($this->mssql_is_sql_server_2000())
{
$sql = "SELECT DISTINCT ix.name AS phpbb_index_name, cols.name AS phpbb_column_name
FROM sysindexes ix
@@ -2687,4 +2676,25 @@ class tools
return $existing_indexes;
}
protected $is_sql_server_2000;
/**
* Is the used MS SQL Server a SQL Server 2000?
*
* @return bool
*/
protected function mssql_is_sql_server_2000()
{
if ($this->is_sql_server_2000 === null)
{
$sql = "SELECT CAST(SERVERPROPERTY('productversion') AS VARCHAR(25)) AS mssql_version";
$result = $this->db->sql_query($sql);
$properties = $this->db->sql_fetchrow($result);
$this->db->sql_freeresult($result);
$this->is_sql_server_2000 = $properties['mssql_version'][0] == '8';
}
return $this->is_sql_server_2000;
}
}