Current File : /home/admin/public_html/old/happyezystyle/board/Sources/DbPackages-mysql.php
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/**********************************************************************************
* DbPackages-mysql.php *
***********************************************************************************
* SMF: Simple Machines Forum *
* Open-Source Project Inspired by Zef Hemel (zef@zefhemel.com) *
* =============================================================================== *
* Software Version: SMF 2.0 RC1 *
* Software by: Simple Machines (http://www.simplemachines.org) *
* Copyright 2006-2009 by: Simple Machines LLC (http://www.simplemachines.org) *
* 2001-2006 by: Lewis Media (http://www.lewismedia.com) *
* Support, News, Updates at: http://www.simplemachines.org *
***********************************************************************************
* This program is free software; you may redistribute it and/or modify it under *
* the terms of the provided license as published by Simple Machines LLC. *
* *
* This program is distributed in the hope that it is and will be useful, but *
* WITHOUT ANY WARRANTIES; without even any implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. *
* *
* See the "license.txt" file for details of the Simple Machines license. *
* The latest version can always be found at http://www.simplemachines.org. *
**********************************************************************************/
if (!defined('SMF'))
die('Hacking attempt...');
/* This file contains database functionality specifically designed for packages to utilize.
bool smf_db_create_table(string table_name, array columns, array indexes = array(),
array parameters = array(), string if_exists = 'ignore')
- Can be used to create a table without worrying about schema compatabilities.
- Will add $db_prefix to the table name unless 'no_prefix' set as a parameter.
- If the table exists will, by default, do nothing.
- Builds table with columns as passed to it - at least one column must be sent.
The columns array should have one sub-array for each column - these sub arrays contain:
+ 'name' = Column name
+ 'type' = Type of column - values from (smallint,mediumint,int,text,varchar,char,tinytext,mediumtext,largetext)
+ 'size' => Size of column (If applicable) - for example 255 for a large varchar, 10 for an int etc. If not
set SMF will pick a size.
+ 'default' = Default value - do not set if no default required.
+ 'null' => Can it be null (true or false) - if not set default will be false.
+ 'auto' => Set to true to make it an auto incrementing column. Set to a numerical value to set
from what it should begin counting.
- Adds indexes as specified within indexes parameter. Each index should be a member of $indexes. Values are:
+ 'name' => Index name (If left empty SMF will generate).
+ 'type' => Type of index. Choose from 'primary', 'unique' or 'index'. If not set will default to 'index'.
+ 'columns' => Array containing columns that form part of key - in the order the index is to be created.
- parameters: (None yet)
- if_exists values:
+ 'update' will add missing columns - but NOT remove old ones.
+ 'update_remove' will add missing columns AND remove old ones.
+ 'ignore' will do nothing if the table exists. (And will return true)
+ 'overwrite' will drop any existing table of the same name.
+ 'error' will return false if the table already exists.
*/
// Add the file functions to the $smcFunc array.
function db_packages_init()
{
global $smcFunc, $reservedTables, $db_package_log, $db_prefix;
if (!isset($smcFunc['db_create_table']) || $smcFunc['db_create_table'] != 'db_create_table')
{
$smcFunc += array(
'db_add_column' => 'smf_db_add_column',
'db_add_index' => 'smf_db_add_index',
'db_calculate_type' => 'smf_db_calculate_type',
'db_change_column' => 'smf_db_change_column',
'db_create_table' => 'smf_db_create_table',
'db_drop_table' => 'smf_db_drop_table',
'db_table_structure' => 'smf_db_table_structure',
'db_list_columns' => 'smf_db_list_columns',
'db_list_indexes' => 'smf_db_list_indexes',
'db_remove_column' => 'smf_db_remove_column',
'db_remove_index' => 'smf_db_remove_index',
);
$db_package_log = array();
}
// We setup an array of SMF tables we can't do auto-remove on - in case a mod writer cocks it up!
$reservedTables = array('admin_info_files', 'approval_queue', 'attachments', 'ban_groups', 'ban_items',
'board_permissions', 'boards', 'calendar', 'calendar_holidays', 'categories', 'collapsed_categories',
'custom_fields', 'group_moderators', 'log_actions', 'log_activity', 'log_banned', 'log_boards',
'log_digest', 'log_errors', 'log_floodcontrol', 'log_group_requests', 'log_karma', 'log_mark_read',
'log_notify', 'log_online', 'log_packages', 'log_polls', 'log_reported', 'log_reported_comments',
'log_scheduled_tasks', 'log_search_messages', 'log_search_results', 'log_search_subjects',
'log_search_topics', 'log_topics', 'mail_queue', 'membergroups', 'members', 'message_icons',
'messages', 'moderators', 'package_servers', 'permission_profiles', 'permissions', 'personal_messages',
'pm_recipients', 'poll_choices', 'polls', 'scheduled_tasks', 'sessions', 'settings', 'smileys',
'themes', 'topics');
foreach ($reservedTables as $k => $table_name)
$reservedTables[$k] = strtolower($db_prefix . $table_name);
// We in turn may need the extra stuff.
db_extend('extra');
}
// Create a table.
//!!! Add/remove indexes too?
function smf_db_create_table($table_name, $columns, $indexes = array(), $parameters = array(), $if_exists = 'update', $error = 'fatal')
{
global $reservedTables, $smcFunc, $db_package_log, $db_prefix;
// Strip out the table name, we might not need it in some cases
$real_prefix = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $db_prefix, $match) === 1 ? $match[3] : $db_prefix;
// With or without the database name, the fullname looks like this.
$complete_table_name = empty($parameters['no_prefix']) ? $db_prefix . $table_name : $table_name;
$full_table_name = empty($parameters['no_prefix']) ? $real_prefix . $table_name : $table_name;
// First - no way do we touch SMF tables.
if (in_array(strtolower($full_table_name), $reservedTables))
return false;
// Log that we'll want to remove this on uninstall.
$db_package_log[] = array('remove_table', $table_name);
// Slightly easier on MySQL than the others...
$tables = $smcFunc['db_list_tables']();
if (in_array($full_table_name, $tables))
{
// This is a sad day... drop the table?
if ($if_exists == 'overwrite')
$smcFunc['db_drop_table']($table_name, array('no_prefix' => true));
elseif ($if_exists == 'ignore')
return true;
elseif ($if_exists == 'error')
return false;
// Otherwise we have to sort through the columns and add/remove ones which are wrong!
else
{
$old_columns = $smcFunc['db_list_columns']($table_name, false, array('no_prefix' => true));
foreach ($old_columns as $k => $v)
$old_columns[$k] = strtolower($v);
foreach ($columns as $column)
{
// Already exists?
if (in_array(strtolower($column['name']), $old_columns))
{
$k = array_search(strtolower($column['name']), $old_columns);
unset($old_columns[$k]);
}
// Doesn't - add it!
else
$smcFunc['db_add_column']($table_name, $column, array('no_prefix' => true));
}
// Whatever is left needs to be removed.
if ($if_exists == 'update_remove')
{
foreach ($old_columns as $column)
$smcFunc['db_remove_column']($table_name, $column, array('no_prefix' => true));
}
// All done!
return true;
}
}
// Righty - let's do the damn thing!
$table_query = 'CREATE TABLE ' . $complete_table_name . "\n" .'(';
foreach ($columns as $column)
{
// Auto increment is easy here!
if (!empty($column['auto']))
{
$default = 'auto_increment';
}
elseif (isset($column['default']) && $column['default'] !== null)
$default = 'default \'' . $column['default'] . '\'';
else
$default = '';
// Sort out the size... and stuff...
$column['size'] = isset($column['size']) && is_numeric($column['size']) ? $column['size'] : null;
list ($type, $size) = $smcFunc['db_calculate_type']($column['type'], $column['size']);
if ($size !== null)
$type = $type . '(' . $size . ')';
// Now just put it together!
$table_query .= "\n\t`" .$column['name'] . '` ' . $type . ' ' . (!empty($column['null']) ? '' : 'NOT NULL') . ' ' . $default . ',';
}
// Loop through the indexes next...
foreach ($indexes as $index)
{
$columns = implode(',', $index['columns']);
// Is it the primary?
if (isset($index['type']) && $index['type'] == 'primary')
$table_query .= "\n\t" . 'PRIMARY KEY (' . implode(',', $index['columns']) . '),';
else
{
if (empty($index['name']))
$index['name'] = implode('_', $index['columns']);
$table_query .= "\n\t" . (isset($index['type']) && $index['type'] == 'unique' ? 'UNIQUE' : 'KEY') . ' ' . $index['name'] . ' (' . $columns . '),';
}
}
// No trailing commas!
if (substr($table_query, -1) == ',')
$table_query = substr($table_query, 0, -1);
$table_query .= ') TYPE=MyISAM';
// Create the table!
$smcFunc['db_query']('', $table_query,
'security_override'
);
}
// Drop a table.
function smf_db_drop_table($table_name, $parameters = array(), $error = 'fatal')
{
global $reservedTables, $smcFunc, $db_prefix;
// After stripping away the database name, this is what's left.
$real_prefix = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $db_prefix, $match) === 1 ? $match[3] : $db_prefix;
// Get some aliases.
$complete_table_name = empty($parameters['no_prefix']) ? $db_prefix . $table_name : $table_name;
$full_table_name = empty($parameters['no_prefix']) ? $real_prefix . $table_name : $table_name;
// God no - dropping one of these = bad.
if (in_array(strtolower($complete_table_name), $reservedTables))
return false;
// Does it exist?
if (in_array($full_table_name, $smcFunc['db_list_tables']()))
{
$query = 'DROP TABLE ' . $complete_table_name;
$smcFunc['db_query']('',
$query,
'security_override'
);
return true;
}
// Otherwise do 'nout.
return false;
}
// Add a column.
function smf_db_add_column($table_name, $column_info, $parameters = array(), $if_exists = 'update', $error = 'fatal')
{
global $smcFunc, $db_package_log, $txt, $db_prefix;
// Add a prefix?
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
// Log that we will want to uninstall this!
$db_package_log[] = array('remove_column', $table_name, $column_info['name']);
// Does it exist - if so don't add it again!
$columns = $smcFunc['db_list_columns']($table_name, false, array('no_prefix' => true));
foreach ($columns as $column)
if ($column == $column_info['name'])
{
// If we're going to overwrite then use change column.
if ($if_exists == 'update')
return $smcFunc['db_change_column']($table_name, $column_info['name'], $column_info, array('no_prefix' => true));
else
return false;
}
// Get the specifics...
$column_info['size'] = isset($column_info['size']) && is_numeric($column_info['size']) ? $column_info['size'] : null;
list ($type, $size) = $smcFunc['db_calculate_type']($column_info['type'], $column_info['size']);
if ($size !== null)
$type = $type . '(' . $size . ')';
// Now add the thing!
$query = '
ALTER TABLE ' . $table_name . '
ADD ' . $column_info['name'] . ' ' . $type . ' ' . (empty($column_info['null']) ? 'NOT NULL' : '') . ' ' .
(!isset($column_info['default']) ? '' : 'default \'' . $column_info['default'] . '\'') . ' ' .
(empty($column_info['auto']) ? '' : 'auto_increment') . ' ';
$smcFunc['db_query']('', $query,
'security_override'
);
return true;
}
// Remove a column.
function smf_db_remove_column($table_name, $column_name, $parameters = array(), $error = 'fatal')
{
global $smcFunc, $db_prefix;
// Are we gonna prefix?
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
// Does it exist?
$columns = $smcFunc['db_list_columns']($table_name, true, array('no_prefix' => true));
foreach ($columns as $column)
if ($column['name'] == $column_name)
{
$smcFunc['db_query']('', '
ALTER TABLE ' . $table_name . '
DROP COLUMN ' . $column_name,
'security_override'
);
return true;
}
// If here we didn't have to work - joy!
return false;
}
// Change a column.
function smf_db_change_column($table_name, $old_column, $column_info, $parameters = array(), $error = 'fatal')
{
global $smcFunc, $db_prefix;
// Prefix, prefix, where art thou prefix?
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
// Check it does exist!
$columns = $smcFunc['db_list_columns']($table_name, true, array('no_prefix' => true));
$old_info = null;
foreach ($columns as $column)
if ($column['name'] == $old_column)
$old_info = $column;
// Nothing?
if ($old_info == null)
return false;
// Get the right bits.
if (!isset($column_info['name']))
$column_info['name'] = $old_column;
if (!isset($column_info['default']))
$column_info['default'] = $old_info['default'];
if (!isset($column_info['null']))
$column_info['null'] = $old_info['null'];
if (!isset($column_info['auto']))
$column_info['auto'] = $old_info['auto'];
if (!isset($column_info['type']))
$column_info['type'] = $old_info['type'];
if (!isset($column_info['size']) || !is_numeric($column_info['size']))
$column_info['size'] = $old_info['size'];
list ($type, $size) = $smcFunc['db_calculate_type']($column_info['type'], $column_info['size']);
if ($size !== null)
$type = $type . '(' . $size . ')';
$smcFunc['db_query']('', '
ALTER TABLE ' . $table_name . '
CHANGE COLUMN ' . $old_column . ' ' . $column_info['name'] . ' ' . $type . ' ' . (empty($column_info['null']) ? 'NOT NULL' : '') . ' ' .
(!isset($column_info['default']) ? '' : 'default \'' . $column_info['default'] . '\'') . ' ' .
(empty($column_info['auto']) ? '' : 'auto_increment') . ' ',
'security_override'
);
}
// Add an index.
function smf_db_add_index($table_name, $index_info, $parameters = array(), $if_exists = 'update', $error = 'fatal')
{
global $smcFunc, $db_package_log, $db_prefix;
// What you want up front?
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
// No columns = no index.
if (empty($index_info['columns']))
return false;
$columns = implode(',', $index_info['columns']);
// No name - make it up!
if (empty($index_info['name']))
{
// No need for primary.
if ($index_info['type'] == 'primary')
$index_info['name'] = '';
else
$index_info['name'] = implode('_', $index_info['columns']);
}
else
$index_info['name'] = $index_info['name'];
// Log that we are going to want to remove this!
$db_package_log[] = array('remove_index', $table_name, $index_info['name']);
// Let's get all our indexes.
$indexes = $smcFunc['db_list_indexes']($table_name, false, array('no_prefix' => true));
// Do we already have it?
foreach ($indexes as $index)
{
if ($index['name'] == $index_info['name'] || ($index['is_primary'] && isset($index_info['type']) && $index_info['type'] == 'primary'))
{
// If we want to overwrite simply remove the current one then continue.
if ($if_exists == 'update')
$smcFunc['db_remove_index']($table_name, $index_info['name'], array('no_prefix' => true));
else
return false;
}
}
// If we're here we know we don't have the index - so just add it.
if (!empty($index_info['type']) && $index_info['type'] == 'primary')
{
$smcFunc['db_query']('', '
ALTER TABLE ' . $table_name . '
ADD PRIMARY KEY (' . $columns . ')',
'security_override'
);
}
else
{
$smcFunc['db_query']('', '
ALTER TABLE ' . $table_name . '
ADD ' . (isset($index_info['type']) && $index_info['type'] == 'unique' ? 'UNIQUE' : 'INDEX') . ' ' . $index_info['name'] . ' (' . $columns . ')',
'security_override'
);
}
}
// Remove an index.
function smf_db_remove_index($table_name, $index_name, $parameters = array(), $error = 'fatal')
{
global $smcFunc, $db_prefix;
// Nothing to hide Mr Hidey Man.
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
// Better exist!
$indexes = $smcFunc['db_list_indexes']($table_name, true, array('no_prefix' => true));
foreach ($indexes as $index)
{
// If the name is primary we want the primary key!
if ($index['type'] == 'primary' && $index_name == 'primary')
{
// Dropping primary key?
$smcFunc['db_query']('', '
ALTER TABLE ' . $table_name . '
DROP PRIMARY KEY',
'security_override'
);
return true;
}
if ($index['name'] == $index_name)
{
// Drop the bugger...
$smcFunc['db_query']('', '
ALTER TABLE ' . $table_name . '
DROP INDEX ' . $index_name,
'security_override'
);
return true;
}
}
// Not to be found ;(
return false;
}
// Get the schema formatted name for a type.
function smf_db_calculate_type($type_name, $type_size = null, $reverse = false)
{
// MySQL is actually the generic baseline.
return array($type_name, $type_size);
}
// Get table structure.
function smf_db_table_structure($table_name, $parameters = array())
{
global $smcFunc, $db_prefix;
// Nothing to hide Mr Hidey Man.
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
return array(
'name' => $table_name,
'columns' => $smcFunc['db_list_columns']($table_name, true, array('no_prefix' => true)),
'indexes' => $smcFunc['db_list_indexes']($table_name, true, array('no_prefix' => true)),
);
}
// Return column information for a table.
function smf_db_list_columns($table_name, $detail = false, $parameters = array())
{
global $smcFunc, $db_prefix;
// Add a prefix chap?
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
$result = $smcFunc['db_query']('', '
SHOW FIELDS
FROM {raw:table_name}',
array(
'table_name' => substr($table_name, 0, 1) == '`' ? $table_name : '`' . $table_name . '`',
)
);
$columns = array();
while ($row = $smcFunc['db_fetch_assoc']($result))
{
if (!$detail)
{
$columns[] = $row['Field'];
}
else
{
// Is there an auto_increment?
$auto = strpos($row['Extra'], 'auto_increment') !== false ? true : false;
// Can we split out the size?
if (preg_match('~(.+?)\s*\((\d+)\)~i', $row['Type'], $matches) === 1)
{
$type = $matches[1];
$size = $matches[2];
}
else
{
$type = $row['Type'];
$size = null;
}
$columns[$row['Field']] = array(
'name' => $row['Field'],
'null' => $row['Null'] != 'YES' ? false : true,
'default' => isset($row['Default']) ? $row['Default'] : null,
'type' => $type,
'size' => $size,
'auto' => $auto,
);
}
}
$smcFunc['db_free_result']($result);
return $columns;
}
// What about some index information?
function smf_db_list_indexes($table_name, $detail = false, $parameters = array())
{
global $smcFunc, $db_prefix;
// Are you prefixed with yourself?
if (empty($parameters['no_prefix']))
$table_name = $db_prefix . $table_name;
$result = $smcFunc['db_query']('', '
SHOW KEYS
FROM {raw:table_name}',
array(
'table_name' => substr($table_name, 0, 1) == '`' ? $table_name : '`' . $table_name . '`',
)
);
$indexes = array();
while ($row = $smcFunc['db_fetch_assoc']($result))
{
if (!$detail)
$indexes[] = $row['Key_name'];
else
{
// What is the type?
if ($row['Key_name'] == 'PRIMARY')
$type = 'primary';
elseif (empty($row['Non_unique']))
$type = 'unique';
elseif (isset($row['Index_type']) && $row['Index_type'] == 'FULLTEXT')
$type = 'fulltext';
else
$type = 'index';
// This is the first column we've seen?
if (empty($indexes[$row['Key_name']]))
{
$indexes[$row['Key_name']] = array(
'name' => $row['Key_name'],
'type' => $type,
'columns' => array(),
);
}
// Is it a partial index?
if (!empty($row['Sub_part']))
$indexes[$row['Key_name']]['columns'][] = $row['Column_name'] . '(' . $row['Sub_part'] . ')';
else
$indexes[$row['Key_name']]['columns'][] = $row['Column_name'];
}
}
$smcFunc['db_free_result']($result);
return $indexes;
}
?>