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<?php |
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/** |
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* This file contains database functionality specifically designed for packages (mods) to utilize. |
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* |
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* Simple Machines Forum (SMF) |
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* |
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* @package SMF |
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* @author Simple Machines https://www.simplemachines.org |
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* @copyright 2022 Simple Machines and individual contributors |
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* @license https://www.simplemachines.org/about/smf/license.php BSD |
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* |
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* @version 2.1.0 |
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*/ |
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if (!defined('SMF')) |
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die('No direct access...'); |
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/** |
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* Add the file functions to the $smcFunc array. |
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*/ |
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function db_packages_init() |
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{ |
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global $smcFunc, $reservedTables, $db_package_log, $db_prefix; |
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if (!isset($smcFunc['db_create_table']) || $smcFunc['db_create_table'] != 'smf_db_create_table') |
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{ |
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$smcFunc += array( |
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'db_add_column' => 'smf_db_add_column', |
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'db_add_index' => 'smf_db_add_index', |
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'db_calculate_type' => 'smf_db_calculate_type', |
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'db_change_column' => 'smf_db_change_column', |
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'db_create_table' => 'smf_db_create_table', |
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'db_drop_table' => 'smf_db_drop_table', |
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'db_table_structure' => 'smf_db_table_structure', |
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'db_list_columns' => 'smf_db_list_columns', |
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'db_list_indexes' => 'smf_db_list_indexes', |
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'db_remove_column' => 'smf_db_remove_column', |
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'db_remove_index' => 'smf_db_remove_index', |
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); |
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$db_package_log = array(); |
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} |
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// We setup an array of SMF tables we can't do auto-remove on - in case a mod writer cocks it up! |
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$reservedTables = array( |
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'admin_info_files', 'approval_queue', 'attachments', |
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'background_tasks', 'ban_groups', 'ban_items', 'board_permissions', |
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'board_permissions_view', 'boards', 'calendar', 'calendar_holidays', |
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'categories', 'custom_fields', 'group_moderators', 'log_actions', |
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'log_activity', 'log_banned', 'log_boards', 'log_comments', |
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'log_digest', 'log_errors', 'log_floodcontrol', 'log_group_requests', |
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'log_mark_read', 'log_member_notices', 'log_notify', 'log_online', |
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'log_packages', 'log_polls', 'log_reported', 'log_reported_comments', |
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'log_scheduled_tasks', 'log_search_messages', 'log_search_results', |
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'log_search_subjects', 'log_search_topics', 'log_spider_hits', |
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'log_spider_stats', 'log_subscribed', 'log_topics', 'mail_queue', |
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'member_logins', 'membergroups', 'members', 'mentions', |
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'message_icons', 'messages', 'moderator_groups', 'moderators', |
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'package_servers', 'permission_profiles', 'permissions', |
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'personal_messages', 'pm_labeled_messages', 'pm_labels', |
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'pm_recipients', 'pm_rules', 'poll_choices', 'polls', 'qanda', |
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'scheduled_tasks', 'sessions', 'settings', 'smiley_files', 'smileys', |
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'spiders', 'subscriptions', 'themes', 'topics', 'user_alerts', |
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'user_alerts_prefs', 'user_drafts', 'user_likes', |
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); |
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foreach ($reservedTables as $k => $table_name) |
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$reservedTables[$k] = strtolower($db_prefix . $table_name); |
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// We in turn may need the extra stuff. |
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db_extend('extra'); |
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} |
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/** |
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* This function can be used to create a table without worrying about schema |
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* compatibilities across supported database systems. |
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* - If the table exists will, by default, do nothing. |
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* - Builds table with columns as passed to it - at least one column must be sent. |
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* The columns array should have one sub-array for each column - these sub arrays contain: |
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* 'name' = Column name |
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* 'type' = Type of column - values from (smallint, mediumint, int, text, varchar, char, tinytext, mediumtext, largetext) |
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* 'size' => Size of column (If applicable) - for example 255 for a large varchar, 10 for an int etc. |
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* If not set SMF will pick a size. |
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* - 'default' = Default value - do not set if no default required. |
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* - 'not_null' => Can it be null (true or false) - if not set default will be false. |
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* - 'auto' => Set to true to make it an auto incrementing column. Set to a numerical value to set from what |
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* it should begin counting. |
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* - Adds indexes as specified within indexes parameter. Each index should be a member of $indexes. Values are: |
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* - 'name' => Index name (If left empty SMF will generate). |
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* - 'type' => Type of index. Choose from 'primary', 'unique' or 'index'. If not set will default to 'index'. |
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* - 'columns' => Array containing columns that form part of key - in the order the index is to be created. |
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* - parameters: (None yet) |
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* - if_exists values: |
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* - 'ignore' will do nothing if the table exists. (And will return true) |
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* - 'overwrite' will drop any existing table of the same name. |
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* - 'error' will return false if the table already exists. |
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* - 'update' will update the table if the table already exists (no change of ai field and only colums with the same name keep the data) |
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* |
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* @param string $table_name The name of the table to create |
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* @param array $columns An array of column info in the specified format |
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* @param array $indexes An array of index info in the specified format |
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* @param array $parameters Currently not used |
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* @param string $if_exists What to do if the table exists. |
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* @param string $error |
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*/ |
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function smf_db_create_table($table_name, $columns, $indexes = array(), $parameters = array(), $if_exists = 'ignore', $error = 'fatal') |
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{ |
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global $reservedTables, $smcFunc, $db_package_log, $db_prefix, $db_name; |
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$db_trans = false; |
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$old_table_exists = false; |
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// Strip out the table name, we might not need it in some cases |
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$real_prefix = preg_match('~^("?)(.+?)\\1\\.(.*?)$~', $db_prefix, $match) === 1 ? $match[3] : $db_prefix; |
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$database = !empty($match[2]) ? $match[2] : $db_name; |
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// With or without the database name, the fullname looks like this. |
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$full_table_name = str_replace('{db_prefix}', $real_prefix, $table_name); |
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$short_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
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// First - no way do we touch SMF tables. |
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if (in_array(strtolower($short_table_name), $reservedTables)) |
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return false; |
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// Log that we'll want to remove this on uninstall. |
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$db_package_log[] = array('remove_table', $short_table_name); |
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// This... my friends... is a function in a half - let's start by checking if the table exists! |
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$tables = $smcFunc['db_list_tables']($database); |
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if (in_array($full_table_name, $tables)) |
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{ |
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// This is a sad day... drop the table? If not, return false (error) by default. |
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if ($if_exists == 'overwrite') |
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$smcFunc['db_drop_table']($table_name); |
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elseif ($if_exists == 'update') |
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{ |
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$smcFunc['db_drop_table']($table_name . '_old'); |
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$smcFunc['db_transaction']('begin'); |
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$db_trans = true; |
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$smcFunc['db_query']('', ' |
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ALTER TABLE ' . $short_table_name . ' RENAME TO ' . $short_table_name . '_old', |
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array( |
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'security_override' => true, |
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) |
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); |
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$old_table_exists = true; |
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} |
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else |
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return $if_exists == 'ignore'; |
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} |
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// If we've got this far - good news - no table exists. We can build our own! |
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if (!$db_trans) |
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$smcFunc['db_transaction']('begin'); |
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$table_query = 'CREATE TABLE ' . $short_table_name . "\n" . '('; |
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foreach ($columns as $column) |
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{ |
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// If we have an auto increment do it! |
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if (!empty($column['auto'])) |
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{ |
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if (!$old_table_exists) |
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$smcFunc['db_query']('', ' |
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DROP SEQUENCE IF EXISTS ' . $short_table_name . '_seq', |
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array( |
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'security_override' => true, |
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) |
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); |
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if (!$old_table_exists) |
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$smcFunc['db_query']('', ' |
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CREATE SEQUENCE ' . $short_table_name . '_seq', |
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array( |
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'security_override' => true, |
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) |
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); |
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$default = 'default nextval(\'' . $short_table_name . '_seq\')'; |
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} |
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elseif (isset($column['default']) && $column['default'] !== null) |
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$default = 'default \'' . $smcFunc['db_escape_string']($column['default']) . '\''; |
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else |
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$default = ''; |
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// Sort out the size... |
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$column['size'] = isset($column['size']) && is_numeric($column['size']) ? $column['size'] : null; |
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list ($type, $size) = $smcFunc['db_calculate_type']($column['type'], $column['size']); |
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if ($size !== null) |
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$type = $type . '(' . $size . ')'; |
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// backward compatibility |
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if (isset($column['null']) && !isset($column['not_null'])) |
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$column['not_null'] = !$column['null']; |
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// Now just put it together! |
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$table_query .= "\n\t\"" . $column['name'] . '" ' . $type . ' ' . (!empty($column['not_null']) ? 'NOT NULL' : '') . ' ' . $default . ','; |
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} |
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// Loop through the indexes a sec... |
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$index_queries = array(); |
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foreach ($indexes as $index) |
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{ |
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$columns = implode(',', $index['columns']); |
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// Primary goes in the table... |
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if (isset($index['type']) && $index['type'] == 'primary') |
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$table_query .= "\n\t" . 'PRIMARY KEY (' . implode(',', $index['columns']) . '),'; |
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else |
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{ |
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if (empty($index['name'])) |
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$index['name'] = implode('_', $index['columns']); |
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$index_queries[] = 'CREATE ' . (isset($index['type']) && $index['type'] == 'unique' ? 'UNIQUE' : '') . ' INDEX ' . $table_name . '_' . $index['name'] . ' ON ' . $table_name . ' (' . $columns . ')'; |
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} |
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} |
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// No trailing commas! |
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if (substr($table_query, -1) == ',') |
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$table_query = substr($table_query, 0, -1); |
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$table_query .= ')'; |
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// Create the table! |
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$smcFunc['db_query']('', $table_query, |
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array( |
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'security_override' => true, |
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) |
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); |
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// Fill the old data |
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if ($old_table_exists) |
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{ |
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$same_col = array(); |
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$request = $smcFunc['db_query']('', ' |
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SELECT count(*), column_name |
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FROM information_schema.columns |
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WHERE table_name in ({string:table1},{string:table2}) AND table_schema = {string:schema} |
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GROUP BY column_name |
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HAVING count(*) > 1', |
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array( |
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'table1' => $short_table_name, |
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'table2' => $short_table_name . '_old', |
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'schema' => 'public', |
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) |
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); |
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while ($row = $smcFunc['db_fetch_assoc']($request)) |
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{ |
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$same_col[] = $row['column_name']; |
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} |
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$smcFunc['db_query']('', ' |
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INSERT INTO ' . $short_table_name . '(' |
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. implode(',', $same_col) . |
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') |
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SELECT ' . implode(',', $same_col) . ' |
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FROM ' . $short_table_name . '_old', |
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array() |
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); |
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} |
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// And the indexes... |
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foreach ($index_queries as $query) |
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$smcFunc['db_query']('', $query, |
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array( |
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'security_override' => true, |
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) |
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); |
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// Go, go power rangers! |
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$smcFunc['db_transaction']('commit'); |
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if ($old_table_exists) |
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$smcFunc['db_drop_table']($table_name . '_old'); |
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return true; |
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} |
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/** |
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* Drop a table and its associated sequences. |
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* |
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* @param string $table_name The name of the table to drop |
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* @param array $parameters Not used at the moment |
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* @param string $error |
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* @return boolean Whether or not the operation was successful |
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*/ |
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function smf_db_drop_table($table_name, $parameters = array(), $error = 'fatal') |
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285
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{ |
|
286
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|
global $reservedTables, $smcFunc, $db_prefix, $db_name; |
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287
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|
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288
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|
// After stripping away the database name, this is what's left. |
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289
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|
$real_prefix = preg_match('~^("?)(.+?)\\1\\.(.*?)$~', $db_prefix, $match) === 1 ? $match[3] : $db_prefix; |
|
290
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|
|
$database = !empty($match[2]) ? $match[2] : $db_name; |
|
291
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|
292
|
|
|
// Get some aliases. |
|
293
|
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|
$full_table_name = str_replace('{db_prefix}', $real_prefix, $table_name); |
|
294
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|
$short_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
295
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|
296
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|
// God no - dropping one of these = bad. |
|
297
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|
if (in_array(strtolower($table_name), $reservedTables)) |
|
298
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|
return false; |
|
299
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|
|
300
|
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|
// Does it exist? |
|
301
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|
|
$tables = $smcFunc['db_list_tables']($database); |
|
302
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|
|
if (in_array($full_table_name, $tables)) |
|
303
|
|
|
{ |
|
304
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|
|
// We can then drop the table. |
|
305
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|
|
$smcFunc['db_transaction']('begin'); |
|
306
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|
|
307
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|
|
// the table |
|
308
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|
|
$table_query = 'DROP TABLE ' . $short_table_name; |
|
309
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|
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|
|
310
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|
// and the assosciated sequence, if any |
|
311
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|
$sequence_query = 'DROP SEQUENCE IF EXISTS ' . $short_table_name . '_seq'; |
|
312
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|
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|
|
313
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|
|
// drop them |
|
314
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|
$smcFunc['db_query']('', |
|
315
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|
|
$table_query, |
|
316
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|
array( |
|
317
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|
|
'security_override' => true, |
|
318
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|
|
) |
|
319
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|
|
); |
|
320
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|
|
$smcFunc['db_query']('', |
|
321
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|
|
$sequence_query, |
|
322
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|
array( |
|
323
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|
|
'security_override' => true, |
|
324
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|
|
) |
|
325
|
|
|
); |
|
326
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|
|
327
|
|
|
$smcFunc['db_transaction']('commit'); |
|
328
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|
|
|
|
329
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|
|
return true; |
|
330
|
|
|
} |
|
331
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|
|
|
|
332
|
|
|
// Otherwise do 'nout. |
|
333
|
|
|
return false; |
|
334
|
|
|
} |
|
335
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|
|
|
|
336
|
|
|
/** |
|
337
|
|
|
* This function adds a column. |
|
338
|
|
|
* |
|
339
|
|
|
* @param string $table_name The name of the table to add the column to |
|
340
|
|
|
* @param array $column_info An array of column info (see {@link smf_db_create_table()}) |
|
341
|
|
|
* @param array $parameters Not used? |
|
342
|
|
|
* @param string $if_exists What to do if the column exists. If 'update', column is updated. |
|
343
|
|
|
* @param string $error |
|
344
|
|
|
* @return boolean Whether or not the operation was successful |
|
345
|
|
|
*/ |
|
346
|
|
|
function smf_db_add_column($table_name, $column_info, $parameters = array(), $if_exists = 'update', $error = 'fatal') |
|
347
|
|
|
{ |
|
348
|
|
|
global $smcFunc, $db_package_log, $db_prefix; |
|
349
|
|
|
|
|
350
|
|
|
$short_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
351
|
|
|
|
|
352
|
|
|
// Log that we will want to uninstall this! |
|
353
|
|
|
$db_package_log[] = array('remove_column', $short_table_name, $column_info['name']); |
|
354
|
|
|
|
|
355
|
|
|
// Does it exist - if so don't add it again! |
|
356
|
|
|
$columns = $smcFunc['db_list_columns']($table_name, false); |
|
357
|
|
|
foreach ($columns as $column) |
|
358
|
|
|
if ($column == $column_info['name']) |
|
359
|
|
|
{ |
|
360
|
|
|
// If we're going to overwrite then use change column. |
|
361
|
|
|
if ($if_exists == 'update') |
|
362
|
|
|
return $smcFunc['db_change_column']($table_name, $column_info['name'], $column_info); |
|
363
|
|
|
else |
|
364
|
|
|
return false; |
|
365
|
|
|
} |
|
366
|
|
|
|
|
367
|
|
|
// Get the specifics... |
|
368
|
|
|
$column_info['size'] = isset($column_info['size']) && is_numeric($column_info['size']) ? $column_info['size'] : null; |
|
369
|
|
|
list ($type, $size) = $smcFunc['db_calculate_type']($column_info['type'], $column_info['size']); |
|
370
|
|
|
if ($size !== null) |
|
371
|
|
|
$type = $type . '(' . $size . ')'; |
|
372
|
|
|
|
|
373
|
|
|
// Now add the thing! |
|
374
|
|
|
$query = ' |
|
375
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
376
|
|
|
ADD COLUMN ' . $column_info['name'] . ' ' . $type; |
|
377
|
|
|
$smcFunc['db_query']('', $query, |
|
378
|
|
|
array( |
|
379
|
|
|
'security_override' => true, |
|
380
|
|
|
) |
|
381
|
|
|
); |
|
382
|
|
|
|
|
383
|
|
|
// If there's more attributes they need to be done via a change on PostgreSQL. |
|
384
|
|
|
unset($column_info['type'], $column_info['size']); |
|
385
|
|
|
|
|
386
|
|
|
if (count($column_info) != 1) |
|
387
|
|
|
return $smcFunc['db_change_column']($table_name, $column_info['name'], $column_info); |
|
388
|
|
|
else |
|
389
|
|
|
return true; |
|
390
|
|
|
} |
|
391
|
|
|
|
|
392
|
|
|
/** |
|
393
|
|
|
* Removes a column. |
|
394
|
|
|
* |
|
395
|
|
|
* @param string $table_name The name of the table to drop the column from |
|
396
|
|
|
* @param string $column_name The name of the column to drop |
|
397
|
|
|
* @param array $parameters Not used? |
|
398
|
|
|
* @param string $error |
|
399
|
|
|
* @return boolean Whether or not the operation was successful |
|
400
|
|
|
*/ |
|
401
|
|
|
function smf_db_remove_column($table_name, $column_name, $parameters = array(), $error = 'fatal') |
|
402
|
|
|
{ |
|
403
|
|
|
global $smcFunc, $db_prefix; |
|
404
|
|
|
|
|
405
|
|
|
$short_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
406
|
|
|
|
|
407
|
|
|
// Does it exist? |
|
408
|
|
|
$columns = $smcFunc['db_list_columns']($table_name, true); |
|
409
|
|
|
|
|
410
|
|
|
foreach ($columns as $column) |
|
411
|
|
|
if (strtolower($column['name']) == strtolower($column_name)) |
|
412
|
|
|
{ |
|
413
|
|
|
// If there is an auto we need remove it! |
|
414
|
|
|
if ($column['auto']) |
|
415
|
|
|
$smcFunc['db_query']('', ' |
|
416
|
|
|
DROP SEQUENCE IF EXISTS ' . $short_table_name . '_seq', |
|
417
|
|
|
array( |
|
418
|
|
|
'security_override' => true, |
|
419
|
|
|
) |
|
420
|
|
|
); |
|
421
|
|
|
|
|
422
|
|
|
$smcFunc['db_query']('', ' |
|
423
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
424
|
|
|
DROP COLUMN ' . $column_name, |
|
425
|
|
|
array( |
|
426
|
|
|
'security_override' => true, |
|
427
|
|
|
) |
|
428
|
|
|
); |
|
429
|
|
|
|
|
430
|
|
|
return true; |
|
431
|
|
|
} |
|
432
|
|
|
|
|
433
|
|
|
// If here we didn't have to work - joy! |
|
434
|
|
|
return false; |
|
435
|
|
|
} |
|
436
|
|
|
|
|
437
|
|
|
/** |
|
438
|
|
|
* Change a column. |
|
439
|
|
|
* |
|
440
|
|
|
* @param string $table_name The name of the table this column is in |
|
441
|
|
|
* @param string $old_column The name of the column we want to change |
|
442
|
|
|
* @param array $column_info An array of info about the "new" column definition (see {@link smf_db_create_table()}) |
|
443
|
|
|
* @return bool |
|
444
|
|
|
*/ |
|
445
|
|
|
function smf_db_change_column($table_name, $old_column, $column_info) |
|
446
|
|
|
{ |
|
447
|
|
|
global $smcFunc, $db_prefix; |
|
448
|
|
|
|
|
449
|
|
|
$short_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
450
|
|
|
|
|
451
|
|
|
// backward compatibility |
|
452
|
|
|
if (isset($column_info['null']) && !isset($column_info['not_null'])) |
|
453
|
|
|
$column_info['not_null'] = !$column_info['null']; |
|
454
|
|
|
|
|
455
|
|
|
// Check it does exist! |
|
456
|
|
|
$columns = $smcFunc['db_list_columns']($table_name, true); |
|
457
|
|
|
$old_info = null; |
|
458
|
|
|
foreach ($columns as $column) |
|
459
|
|
|
if ($column['name'] == $old_column) |
|
460
|
|
|
$old_info = $column; |
|
461
|
|
|
|
|
462
|
|
|
// Nothing? |
|
463
|
|
|
if ($old_info == null) |
|
464
|
|
|
return false; |
|
465
|
|
|
|
|
466
|
|
|
// Now we check each bit individually and ALTER as required. |
|
467
|
|
|
if (isset($column_info['name']) && $column_info['name'] != $old_column) |
|
468
|
|
|
{ |
|
469
|
|
|
$smcFunc['db_query']('', ' |
|
470
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
471
|
|
|
RENAME COLUMN ' . $old_column . ' TO ' . $column_info['name'], |
|
472
|
|
|
array( |
|
473
|
|
|
'security_override' => true, |
|
474
|
|
|
) |
|
475
|
|
|
); |
|
476
|
|
|
} |
|
477
|
|
|
// Different default? |
|
478
|
|
|
if (array_key_exists('default', $column_info) && $column_info['default'] != $old_info['default']) |
|
479
|
|
|
{ |
|
480
|
|
|
// Fix the default. |
|
481
|
|
|
$default = ''; |
|
482
|
|
|
if (array_key_exists('default', $column_info) && is_null($column_info['default'])) |
|
483
|
|
|
$default = 'NULL'; |
|
484
|
|
|
elseif (isset($column_info['default']) && is_numeric($column_info['default'])) |
|
485
|
|
|
$default = strpos($column_info['default'], '.') ? floatval($column_info['default']) : intval($column_info['default']); |
|
486
|
|
|
else |
|
487
|
|
|
$default = '\'' . $smcFunc['db_escape_string']($column_info['default']) . '\''; |
|
488
|
|
|
|
|
489
|
|
|
$action = $default === '' ? 'DROP DEFAULT' : 'SET DEFAULT ' . $default; |
|
490
|
|
|
$smcFunc['db_query']('', ' |
|
491
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
492
|
|
|
ALTER COLUMN ' . $column_info['name'] . ' ' . $action, |
|
493
|
|
|
array( |
|
494
|
|
|
'security_override' => true, |
|
495
|
|
|
) |
|
496
|
|
|
); |
|
497
|
|
|
} |
|
498
|
|
|
|
|
499
|
|
|
// Is it null - or otherwise? |
|
500
|
|
|
if (isset($column_info['not_null']) && $column_info['not_null'] != $old_info['not_null']) |
|
501
|
|
|
{ |
|
502
|
|
|
$action = $column_info['not_null'] ? 'SET' : 'DROP'; |
|
503
|
|
|
$smcFunc['db_transaction']('begin'); |
|
504
|
|
|
if ($column_info['not_null']) |
|
505
|
|
|
{ |
|
506
|
|
|
// We have to set it to something if we are making it NOT NULL. And we must comply with the current column format. |
|
507
|
|
|
$setTo = isset($column_info['default']) ? $column_info['default'] : (strpos($old_info['type'], 'int') !== false ? 0 : ''); |
|
508
|
|
|
$smcFunc['db_query']('', ' |
|
509
|
|
|
UPDATE ' . $short_table_name . ' |
|
510
|
|
|
SET ' . $column_info['name'] . ' = \'' . $setTo . '\' |
|
511
|
|
|
WHERE ' . $column_info['name'] . ' IS NULL', |
|
512
|
|
|
array( |
|
513
|
|
|
'security_override' => true, |
|
514
|
|
|
) |
|
515
|
|
|
); |
|
516
|
|
|
} |
|
517
|
|
|
$smcFunc['db_query']('', ' |
|
518
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
519
|
|
|
ALTER COLUMN ' . $column_info['name'] . ' ' . $action . ' NOT NULL', |
|
520
|
|
|
array( |
|
521
|
|
|
'security_override' => true, |
|
522
|
|
|
) |
|
523
|
|
|
); |
|
524
|
|
|
$smcFunc['db_transaction']('commit'); |
|
525
|
|
|
} |
|
526
|
|
|
// What about a change in type? |
|
527
|
|
|
if (isset($column_info['type']) && ($column_info['type'] != $old_info['type'] || (isset($column_info['size']) && $column_info['size'] != $old_info['size']))) |
|
528
|
|
|
{ |
|
529
|
|
|
$column_info['size'] = isset($column_info['size']) && is_numeric($column_info['size']) ? $column_info['size'] : null; |
|
530
|
|
|
list ($type, $size) = $smcFunc['db_calculate_type']($column_info['type'], $column_info['size']); |
|
531
|
|
|
if ($size !== null) |
|
532
|
|
|
$type = $type . '(' . $size . ')'; |
|
533
|
|
|
|
|
534
|
|
|
// The alter is a pain. |
|
535
|
|
|
$smcFunc['db_transaction']('begin'); |
|
536
|
|
|
$smcFunc['db_query']('', ' |
|
537
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
538
|
|
|
ADD COLUMN ' . $column_info['name'] . '_tempxx ' . $type, |
|
539
|
|
|
array( |
|
540
|
|
|
'security_override' => true, |
|
541
|
|
|
) |
|
542
|
|
|
); |
|
543
|
|
|
$smcFunc['db_query']('', ' |
|
544
|
|
|
UPDATE ' . $short_table_name . ' |
|
545
|
|
|
SET ' . $column_info['name'] . '_tempxx = CAST(' . $column_info['name'] . ' AS ' . $type . ')', |
|
546
|
|
|
array( |
|
547
|
|
|
'security_override' => true, |
|
548
|
|
|
) |
|
549
|
|
|
); |
|
550
|
|
|
$smcFunc['db_query']('', ' |
|
551
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
552
|
|
|
DROP COLUMN ' . $column_info['name'], |
|
553
|
|
|
array( |
|
554
|
|
|
'security_override' => true, |
|
555
|
|
|
) |
|
556
|
|
|
); |
|
557
|
|
|
$smcFunc['db_query']('', ' |
|
558
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
559
|
|
|
RENAME COLUMN ' . $column_info['name'] . '_tempxx TO ' . $column_info['name'], |
|
560
|
|
|
array( |
|
561
|
|
|
'security_override' => true, |
|
562
|
|
|
) |
|
563
|
|
|
); |
|
564
|
|
|
$smcFunc['db_transaction']('commit'); |
|
565
|
|
|
} |
|
566
|
|
|
// Finally - auto increment?! |
|
567
|
|
|
if (isset($column_info['auto']) && $column_info['auto'] != $old_info['auto']) |
|
568
|
|
|
{ |
|
569
|
|
|
// Are we removing an old one? |
|
570
|
|
|
if ($old_info['auto']) |
|
571
|
|
|
{ |
|
572
|
|
|
// Alter the table first - then drop the sequence. |
|
573
|
|
|
$smcFunc['db_query']('', ' |
|
574
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
575
|
|
|
ALTER COLUMN ' . $column_info['name'] . ' SET DEFAULT \'0\'', |
|
576
|
|
|
array( |
|
577
|
|
|
'security_override' => true, |
|
578
|
|
|
) |
|
579
|
|
|
); |
|
580
|
|
|
$smcFunc['db_query']('', ' |
|
581
|
|
|
DROP SEQUENCE IF EXISTS ' . $short_table_name . '_seq', |
|
582
|
|
|
array( |
|
583
|
|
|
'security_override' => true, |
|
584
|
|
|
) |
|
585
|
|
|
); |
|
586
|
|
|
} |
|
587
|
|
|
// Otherwise add it! |
|
588
|
|
|
else |
|
589
|
|
|
{ |
|
590
|
|
|
$smcFunc['db_query']('', ' |
|
591
|
|
|
DROP SEQUENCE IF EXISTS ' . $short_table_name . '_seq', |
|
592
|
|
|
array( |
|
593
|
|
|
'security_override' => true, |
|
594
|
|
|
) |
|
595
|
|
|
); |
|
596
|
|
|
|
|
597
|
|
|
$smcFunc['db_query']('', ' |
|
598
|
|
|
CREATE SEQUENCE ' . $short_table_name . '_seq', |
|
599
|
|
|
array( |
|
600
|
|
|
'security_override' => true, |
|
601
|
|
|
) |
|
602
|
|
|
); |
|
603
|
|
|
$smcFunc['db_query']('', ' |
|
604
|
|
|
ALTER TABLE ' . $short_table_name . ' |
|
605
|
|
|
ALTER COLUMN ' . $column_info['name'] . ' SET DEFAULT nextval(\'' . $short_table_name . '_seq\')', |
|
606
|
|
|
array( |
|
607
|
|
|
'security_override' => true, |
|
608
|
|
|
) |
|
609
|
|
|
); |
|
610
|
|
|
} |
|
611
|
|
|
} |
|
612
|
|
|
|
|
613
|
|
|
return true; |
|
614
|
|
|
} |
|
615
|
|
|
|
|
616
|
|
|
/** |
|
617
|
|
|
* Add an index. |
|
618
|
|
|
* |
|
619
|
|
|
* @param string $table_name The name of the table to add the index to |
|
620
|
|
|
* @param array $index_info An array of index info (see {@link smf_db_create_table()}) |
|
621
|
|
|
* @param array $parameters Not used? |
|
622
|
|
|
* @param string $if_exists What to do if the index exists. If 'update', the definition will be updated. |
|
623
|
|
|
* @param string $error |
|
624
|
|
|
* @return boolean Whether or not the operation was successful |
|
625
|
|
|
*/ |
|
626
|
|
|
function smf_db_add_index($table_name, $index_info, $parameters = array(), $if_exists = 'update', $error = 'fatal') |
|
627
|
|
|
{ |
|
628
|
|
|
global $smcFunc, $db_package_log, $db_prefix; |
|
629
|
|
|
|
|
630
|
|
|
$parsed_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
631
|
|
|
$real_table_name = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $parsed_table_name, $match) === 1 ? $match[3] : $parsed_table_name; |
|
632
|
|
|
|
|
633
|
|
|
// No columns = no index. |
|
634
|
|
|
if (empty($index_info['columns'])) |
|
635
|
|
|
return false; |
|
636
|
|
|
|
|
637
|
|
|
// MySQL you can do a "column_name (length)", postgresql does not allow this. Strip it. |
|
638
|
|
|
foreach ($index_info['columns'] as &$c) |
|
639
|
|
|
$c = preg_replace('~\s+(\(\d+\))~', '', $c); |
|
640
|
|
|
|
|
641
|
|
|
$columns = implode(',', $index_info['columns']); |
|
642
|
|
|
|
|
643
|
|
|
// No name - make it up! |
|
644
|
|
|
if (empty($index_info['name'])) |
|
645
|
|
|
{ |
|
646
|
|
|
// No need for primary. |
|
647
|
|
|
if (isset($index_info['type']) && $index_info['type'] == 'primary') |
|
648
|
|
|
$index_info['name'] = ''; |
|
649
|
|
|
else |
|
650
|
|
|
$index_info['name'] = trim(implode('_', preg_replace('~(\(\d+\))~', '', $index_info['columns']))); |
|
651
|
|
|
} |
|
652
|
|
|
else |
|
653
|
|
|
$index_info['name'] = $index_info['name']; |
|
654
|
|
|
|
|
655
|
|
|
// Log that we are going to want to remove this! |
|
656
|
|
|
$db_package_log[] = array('remove_index', $parsed_table_name, $index_info['name']); |
|
657
|
|
|
|
|
658
|
|
|
// Let's get all our indexes. |
|
659
|
|
|
$indexes = $smcFunc['db_list_indexes']($table_name, true); |
|
660
|
|
|
|
|
661
|
|
|
// Do we already have it? |
|
662
|
|
|
foreach ($indexes as $index) |
|
663
|
|
|
{ |
|
664
|
|
|
if ($index['name'] == $index_info['name'] || ($index['type'] == 'primary' && isset($index_info['type']) && $index_info['type'] == 'primary')) |
|
665
|
|
|
{ |
|
666
|
|
|
// If we want to overwrite simply remove the current one then continue. |
|
667
|
|
|
if ($if_exists != 'update' || $index['type'] == 'primary') |
|
668
|
|
|
return false; |
|
669
|
|
|
else |
|
670
|
|
|
$smcFunc['db_remove_index']($table_name, $index_info['name']); |
|
671
|
|
|
} |
|
672
|
|
|
} |
|
673
|
|
|
|
|
674
|
|
|
// If we're here we know we don't have the index - so just add it. |
|
675
|
|
|
if (!empty($index_info['type']) && $index_info['type'] == 'primary') |
|
676
|
|
|
{ |
|
677
|
|
|
$smcFunc['db_query']('', ' |
|
678
|
|
|
ALTER TABLE ' . $real_table_name . ' |
|
679
|
|
|
ADD PRIMARY KEY (' . $columns . ')', |
|
680
|
|
|
array( |
|
681
|
|
|
'security_override' => true, |
|
682
|
|
|
) |
|
683
|
|
|
); |
|
684
|
|
|
} |
|
685
|
|
|
else |
|
686
|
|
|
{ |
|
687
|
|
|
$smcFunc['db_query']('', ' |
|
688
|
|
|
CREATE ' . (isset($index_info['type']) && $index_info['type'] == 'unique' ? 'UNIQUE' : '') . ' INDEX ' . $real_table_name . '_' . $index_info['name'] . ' ON ' . $real_table_name . ' (' . $columns . ')', |
|
689
|
|
|
array( |
|
690
|
|
|
'security_override' => true, |
|
691
|
|
|
) |
|
692
|
|
|
); |
|
693
|
|
|
} |
|
694
|
|
|
} |
|
695
|
|
|
|
|
696
|
|
|
/** |
|
697
|
|
|
* Remove an index. |
|
698
|
|
|
* |
|
699
|
|
|
* @param string $table_name The name of the table to remove the index from |
|
700
|
|
|
* @param string $index_name The name of the index to remove |
|
701
|
|
|
* @param array $parameters Not used? |
|
702
|
|
|
* @param string $error |
|
703
|
|
|
* @return boolean Whether or not the operation was successful |
|
704
|
|
|
*/ |
|
705
|
|
|
function smf_db_remove_index($table_name, $index_name, $parameters = array(), $error = 'fatal') |
|
706
|
|
|
{ |
|
707
|
|
|
global $smcFunc, $db_prefix; |
|
708
|
|
|
|
|
709
|
|
|
$parsed_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
710
|
|
|
$real_table_name = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $parsed_table_name, $match) === 1 ? $match[3] : $parsed_table_name; |
|
711
|
|
|
|
|
712
|
|
|
// Better exist! |
|
713
|
|
|
$indexes = $smcFunc['db_list_indexes']($table_name, true); |
|
714
|
|
|
|
|
715
|
|
|
// Do not add the table name to the index if it is arleady there. |
|
716
|
|
|
if ($index_name != 'primary' && strpos($index_name, $real_table_name) !== false) |
|
717
|
|
|
$index_name = str_replace($real_table_name . '_', '', $index_name); |
|
718
|
|
|
|
|
719
|
|
|
foreach ($indexes as $index) |
|
720
|
|
|
{ |
|
721
|
|
|
// If the name is primary we want the primary key! |
|
722
|
|
|
if ($index['type'] == 'primary' && $index_name == 'primary') |
|
723
|
|
|
{ |
|
724
|
|
|
// Dropping primary key is odd... |
|
725
|
|
|
$smcFunc['db_query']('', ' |
|
726
|
|
|
ALTER TABLE ' . $real_table_name . ' |
|
727
|
|
|
DROP CONSTRAINT ' . $index['name'], |
|
728
|
|
|
array( |
|
729
|
|
|
'security_override' => true, |
|
730
|
|
|
) |
|
731
|
|
|
); |
|
732
|
|
|
|
|
733
|
|
|
return true; |
|
734
|
|
|
} |
|
735
|
|
|
|
|
736
|
|
|
if ($index['name'] == $index_name) |
|
737
|
|
|
{ |
|
738
|
|
|
// Drop the bugger... |
|
739
|
|
|
$smcFunc['db_query']('', ' |
|
740
|
|
|
DROP INDEX ' . $real_table_name . '_' . $index_name, |
|
741
|
|
|
array( |
|
742
|
|
|
'security_override' => true, |
|
743
|
|
|
) |
|
744
|
|
|
); |
|
745
|
|
|
|
|
746
|
|
|
return true; |
|
747
|
|
|
} |
|
748
|
|
|
} |
|
749
|
|
|
|
|
750
|
|
|
// Not to be found ;( |
|
751
|
|
|
return false; |
|
752
|
|
|
} |
|
753
|
|
|
|
|
754
|
|
|
/** |
|
755
|
|
|
* Get the schema formatted name for a type. |
|
756
|
|
|
* |
|
757
|
|
|
* @param string $type_name The data type (int, varchar, smallint, etc.) |
|
758
|
|
|
* @param int $type_size The size (8, 255, etc.) |
|
759
|
|
|
* @param boolean $reverse If true, returns specific types for a generic type |
|
760
|
|
|
* @return array An array containing the appropriate type and size for this DB type |
|
761
|
|
|
*/ |
|
762
|
|
|
function smf_db_calculate_type($type_name, $type_size = null, $reverse = false) |
|
763
|
|
|
{ |
|
764
|
|
|
// Let's be sure it's lowercase MySQL likes both, others no. |
|
765
|
|
|
$type_name = strtolower($type_name); |
|
766
|
|
|
// Generic => Specific. |
|
767
|
|
|
if (!$reverse) |
|
768
|
|
|
{ |
|
769
|
|
|
$types = array( |
|
770
|
|
|
'varchar' => 'character varying', |
|
771
|
|
|
'char' => 'character', |
|
772
|
|
|
'mediumint' => 'int', |
|
773
|
|
|
'tinyint' => 'smallint', |
|
774
|
|
|
'tinytext' => 'character varying', |
|
775
|
|
|
'mediumtext' => 'text', |
|
776
|
|
|
'largetext' => 'text', |
|
777
|
|
|
'inet' => 'inet', |
|
778
|
|
|
'time' => 'time without time zone', |
|
779
|
|
|
'datetime' => 'timestamp without time zone', |
|
780
|
|
|
'timestamp' => 'timestamp without time zone', |
|
781
|
|
|
); |
|
782
|
|
|
} |
|
783
|
|
|
else |
|
784
|
|
|
{ |
|
785
|
|
|
$types = array( |
|
786
|
|
|
'character varying' => 'varchar', |
|
787
|
|
|
'character' => 'char', |
|
788
|
|
|
'integer' => 'int', |
|
789
|
|
|
'inet' => 'inet', |
|
790
|
|
|
'time without time zone' => 'time', |
|
791
|
|
|
'timestamp without time zone' => 'datetime', |
|
792
|
|
|
'numeric' => 'decimal', |
|
793
|
|
|
); |
|
794
|
|
|
} |
|
795
|
|
|
|
|
796
|
|
|
// Got it? Change it! |
|
797
|
|
|
if (isset($types[$type_name])) |
|
798
|
|
|
{ |
|
799
|
|
|
if ($type_name == 'tinytext') |
|
800
|
|
|
$type_size = 255; |
|
801
|
|
|
$type_name = $types[$type_name]; |
|
802
|
|
|
} |
|
803
|
|
|
|
|
804
|
|
|
// Only char fields got size |
|
805
|
|
|
if (strpos($type_name, 'char') === false) |
|
806
|
|
|
$type_size = null; |
|
807
|
|
|
|
|
808
|
|
|
return array($type_name, $type_size); |
|
809
|
|
|
} |
|
810
|
|
|
|
|
811
|
|
|
/** |
|
812
|
|
|
* Get table structure. |
|
813
|
|
|
* |
|
814
|
|
|
* @param string $table_name The name of the table |
|
815
|
|
|
* @return array An array of table structure - the name, the column info from {@link smf_db_list_columns()} and the index info from {@link smf_db_list_indexes()} |
|
816
|
|
|
*/ |
|
817
|
|
|
function smf_db_table_structure($table_name) |
|
818
|
|
|
{ |
|
819
|
|
|
global $smcFunc, $db_prefix; |
|
820
|
|
|
|
|
821
|
|
|
$parsed_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
822
|
|
|
$real_table_name = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $parsed_table_name, $match) === 1 ? $match[3] : $parsed_table_name; |
|
823
|
|
|
|
|
824
|
|
|
return array( |
|
825
|
|
|
'name' => $real_table_name, |
|
826
|
|
|
'columns' => $smcFunc['db_list_columns']($table_name, true), |
|
827
|
|
|
'indexes' => $smcFunc['db_list_indexes']($table_name, true), |
|
828
|
|
|
); |
|
829
|
|
|
} |
|
830
|
|
|
|
|
831
|
|
|
/** |
|
832
|
|
|
* Return column information for a table. |
|
833
|
|
|
* |
|
834
|
|
|
* @param string $table_name The name of the table to get column info for |
|
835
|
|
|
* @param bool $detail Whether or not to return detailed info. If true, returns the column info. If false, just returns the column names. |
|
836
|
|
|
* @param array $parameters Not used? |
|
837
|
|
|
* @return array An array of column names or detailed column info, depending on $detail |
|
838
|
|
|
*/ |
|
839
|
|
|
function smf_db_list_columns($table_name, $detail = false, $parameters = array()) |
|
840
|
|
|
{ |
|
841
|
|
|
global $smcFunc, $db_prefix, $db_name; |
|
842
|
|
|
|
|
843
|
|
|
$parsed_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
844
|
|
|
$real_table_name = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $parsed_table_name, $match) === 1 ? $match[3] : $parsed_table_name; |
|
845
|
|
|
$database = !empty($match[2]) ? $match[2] : $db_name; |
|
|
|
|
|
|
846
|
|
|
|
|
847
|
|
|
$result = $smcFunc['db_query']('', ' |
|
848
|
|
|
SELECT column_name, column_default, is_nullable, data_type, character_maximum_length |
|
849
|
|
|
FROM information_schema.columns |
|
850
|
|
|
WHERE table_schema = {string:schema_public} |
|
851
|
|
|
AND table_name = {string:table_name} |
|
852
|
|
|
ORDER BY ordinal_position', |
|
853
|
|
|
array( |
|
854
|
|
|
'schema_public' => 'public', |
|
855
|
|
|
'table_name' => $real_table_name, |
|
856
|
|
|
) |
|
857
|
|
|
); |
|
858
|
|
|
$columns = array(); |
|
859
|
|
|
while ($row = $smcFunc['db_fetch_assoc']($result)) |
|
860
|
|
|
{ |
|
861
|
|
|
if (!$detail) |
|
862
|
|
|
{ |
|
863
|
|
|
$columns[] = $row['column_name']; |
|
864
|
|
|
} |
|
865
|
|
|
else |
|
866
|
|
|
{ |
|
867
|
|
|
$auto = false; |
|
868
|
|
|
// What is the default? |
|
869
|
|
|
if (preg_match('~nextval\(\'(.+?)\'(.+?)*\)~i', $row['column_default'], $matches) != 0) |
|
870
|
|
|
{ |
|
871
|
|
|
$default = null; |
|
872
|
|
|
$auto = true; |
|
873
|
|
|
} |
|
874
|
|
|
elseif (trim($row['column_default']) != '') |
|
875
|
|
|
$default = trim(strpos($row['column_default'], '::') === false ? $row['column_default'] : substr($row['column_default'], 0, strpos($row['column_default'], '::')), '\''); |
|
876
|
|
|
else |
|
877
|
|
|
$default = null; |
|
878
|
|
|
|
|
879
|
|
|
// Make the type generic. |
|
880
|
|
|
list ($type, $size) = $smcFunc['db_calculate_type']($row['data_type'], $row['character_maximum_length'], true); |
|
881
|
|
|
|
|
882
|
|
|
$columns[$row['column_name']] = array( |
|
883
|
|
|
'name' => $row['column_name'], |
|
884
|
|
|
'not_null' => $row['is_nullable'] == 'YES' ? false : true, |
|
885
|
|
|
'null' => $row['is_nullable'] == 'YES' ? true : false, |
|
886
|
|
|
'default' => $default, |
|
887
|
|
|
'type' => $type, |
|
888
|
|
|
'size' => $size, |
|
889
|
|
|
'auto' => $auto, |
|
890
|
|
|
); |
|
891
|
|
|
} |
|
892
|
|
|
} |
|
893
|
|
|
$smcFunc['db_free_result']($result); |
|
894
|
|
|
|
|
895
|
|
|
return $columns; |
|
896
|
|
|
} |
|
897
|
|
|
|
|
898
|
|
|
/** |
|
899
|
|
|
* Get index information. |
|
900
|
|
|
* |
|
901
|
|
|
* @param string $table_name The name of the table to get indexes for |
|
902
|
|
|
* @param bool $detail Whether or not to return detailed info. |
|
903
|
|
|
* @param array $parameters Not used? |
|
904
|
|
|
* @return array An array of index names or a detailed array of index info, depending on $detail |
|
905
|
|
|
*/ |
|
906
|
|
|
function smf_db_list_indexes($table_name, $detail = false, $parameters = array()) |
|
907
|
|
|
{ |
|
908
|
|
|
global $smcFunc, $db_prefix, $db_name; |
|
909
|
|
|
|
|
910
|
|
|
$parsed_table_name = str_replace('{db_prefix}', $db_prefix, $table_name); |
|
911
|
|
|
$real_table_name = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $parsed_table_name, $match) === 1 ? $match[3] : $parsed_table_name; |
|
912
|
|
|
$database = !empty($match[2]) ? $match[2] : $db_name; |
|
|
|
|
|
|
913
|
|
|
|
|
914
|
|
|
$result = $smcFunc['db_query']('', ' |
|
915
|
|
|
SELECT CASE WHEN i.indisprimary THEN 1 ELSE 0 END AS is_primary, |
|
916
|
|
|
CASE WHEN i.indisunique THEN 1 ELSE 0 END AS is_unique, |
|
917
|
|
|
c2.relname AS name, |
|
918
|
|
|
pg_get_indexdef(i.indexrelid) AS inddef |
|
919
|
|
|
FROM pg_class AS c, pg_class AS c2, pg_index AS i |
|
920
|
|
|
WHERE c.relname = {string:table_name} |
|
921
|
|
|
AND c.oid = i.indrelid |
|
922
|
|
|
AND i.indexrelid = c2.oid', |
|
923
|
|
|
array( |
|
924
|
|
|
'table_name' => $real_table_name, |
|
925
|
|
|
) |
|
926
|
|
|
); |
|
927
|
|
|
$indexes = array(); |
|
928
|
|
|
while ($row = $smcFunc['db_fetch_assoc']($result)) |
|
929
|
|
|
{ |
|
930
|
|
|
// Try get the columns that make it up. |
|
931
|
|
|
if (preg_match('~\(([^\)]+?)\)~i', $row['inddef'], $matches) == 0) |
|
932
|
|
|
continue; |
|
933
|
|
|
|
|
934
|
|
|
$columns = explode(',', $matches[1]); |
|
935
|
|
|
|
|
936
|
|
|
if (empty($columns)) |
|
937
|
|
|
continue; |
|
938
|
|
|
|
|
939
|
|
|
foreach ($columns as $k => $v) |
|
940
|
|
|
$columns[$k] = trim($v); |
|
941
|
|
|
|
|
942
|
|
|
// Fix up the name to be consistent cross databases |
|
943
|
|
|
if (substr($row['name'], -5) == '_pkey' && $row['is_primary'] == 1) |
|
944
|
|
|
$row['name'] = 'PRIMARY'; |
|
945
|
|
|
else |
|
946
|
|
|
$row['name'] = str_replace($real_table_name . '_', '', $row['name']); |
|
947
|
|
|
|
|
948
|
|
|
if (!$detail) |
|
949
|
|
|
$indexes[] = $row['name']; |
|
950
|
|
|
else |
|
951
|
|
|
{ |
|
952
|
|
|
$indexes[$row['name']] = array( |
|
953
|
|
|
'name' => $row['name'], |
|
954
|
|
|
'type' => $row['is_primary'] ? 'primary' : ($row['is_unique'] ? 'unique' : 'index'), |
|
955
|
|
|
'columns' => $columns, |
|
956
|
|
|
); |
|
957
|
|
|
} |
|
958
|
|
|
} |
|
959
|
|
|
$smcFunc['db_free_result']($result); |
|
960
|
|
|
|
|
961
|
|
|
return $indexes; |
|
962
|
|
|
} |
|
963
|
|
|
|
|
964
|
|
|
?> |
SimpleMachines /
SMF2.1
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