3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Database;
25 use Friendica\Core\Hook;
26 use Friendica\Core\Logger;
28 use Friendica\Model\Item;
29 use Friendica\Model\User;
30 use Friendica\Util\DateTimeFormat;
33 * This class contains functions that doesn't need to know if pdo, mysqli or whatever is used.
37 const UPDATE_NOT_CHECKED = 0; // Database check wasn't executed before
38 const UPDATE_SUCCESSFUL = 1; // Database check was successful
39 const UPDATE_FAILED = 2; // Database check failed
41 const RENAME_COLUMN = 0;
42 const RENAME_PRIMARY_KEY = 1;
45 * Database structure definition loaded from config/dbstructure.config.php
49 private static $definition = [];
52 * Set a database version to trigger update functions
54 * @param string $version
57 public static function setDatabaseVersion(string $version)
59 if (!is_numeric($version)) {
60 throw new \Asika\SimpleConsole\CommandArgsException('The version number must be numeric');
63 DI::config()->set('system', 'build', $version);
64 echo DI::l10n()->t('The database version had been set to %s.', $version);
70 * @param boolean $execute
73 public static function dropTables(bool $execute)
75 $postupdate = DI::config()->get("system", "post_update_version", PostUpdate::VERSION);
76 if ($postupdate < PostUpdate::VERSION) {
77 echo DI::l10n()->t('The post update is at version %d, it has to be at %d to safely drop the tables.', $postupdate, PostUpdate::VERSION);
81 $old_tables = ['fserver', 'gcign', 'gcontact', 'gcontact-relation', 'gfollower' ,'glink', 'item-delivery-data',
82 'item-activity', 'item-content', 'item_id', 'participation', 'poll', 'poll_result', 'queue', 'retriever_rule',
83 'deliverq', 'dsprphotoq', 'ffinder', 'sign', 'spam', 'term', 'user-item', 'thread', 'item'];
85 $tables = DBA::selectToArray(['INFORMATION_SCHEMA' => 'TABLES'], ['TABLE_NAME'],
86 ['TABLE_SCHEMA' => DBA::databaseName(), 'TABLE_TYPE' => 'BASE TABLE']);
89 echo DI::l10n()->t('No unused tables found.');
94 echo DI::l10n()->t('These tables are not used for friendica and will be deleted when you execute "dbstructure drop -e":') . "\n\n";
97 foreach ($tables as $table) {
98 if (in_array($table['TABLE_NAME'], $old_tables)) {
100 $sql = 'DROP TABLE ' . DBA::quoteIdentifier($table['TABLE_NAME']) . ';';
103 $result = DBA::e($sql);
104 if (!DBA::isResult($result)) {
105 self::printUpdateError($sql);
108 echo $table['TABLE_NAME'] . "\n";
115 * Converts all tables from MyISAM/InnoDB Antelope to InnoDB Barracuda
117 public static function convertToInnoDB()
119 $tables = DBA::selectToArray(
120 ['information_schema' => 'tables'],
122 ['engine' => 'MyISAM', 'table_schema' => DBA::databaseName()]
125 $tables = array_merge($tables, DBA::selectToArray(
126 ['information_schema' => 'tables'],
128 ['engine' => 'InnoDB', 'ROW_FORMAT' => ['COMPACT', 'REDUNDANT'], 'table_schema' => DBA::databaseName()]
131 if (!DBA::isResult($tables)) {
132 echo DI::l10n()->t('There are no tables on MyISAM or InnoDB with the Antelope file format.') . "\n";
136 foreach ($tables AS $table) {
137 $sql = "ALTER TABLE " . DBA::quoteIdentifier($table['table_name']) . " ENGINE=InnoDB ROW_FORMAT=DYNAMIC;";
140 $result = DBA::e($sql);
141 if (!DBA::isResult($result)) {
142 self::printUpdateError($sql);
148 * Print out database error messages
150 * @param string $message Message to be added to the error message
152 * @return string Error message
154 private static function printUpdateError($message)
156 echo DI::l10n()->t("\nError %d occurred during database update:\n%s\n",
157 DBA::errorNo(), DBA::errorMessage());
159 return DI::l10n()->t('Errors encountered performing database changes: ') . $message . EOL;
162 public static function printStructure($basePath)
164 $database = self::definition($basePath, false);
166 echo "-- ------------------------------------------\n";
167 echo "-- " . FRIENDICA_PLATFORM . " " . FRIENDICA_VERSION . " (" . FRIENDICA_CODENAME, ")\n";
168 echo "-- DB_UPDATE_VERSION " . DB_UPDATE_VERSION . "\n";
169 echo "-- ------------------------------------------\n\n\n";
170 foreach ($database AS $name => $structure) {
172 echo "-- TABLE $name\n";
174 self::createTable($name, $structure, true, false);
179 View::printStructure($basePath);
183 * Loads the database structure definition from the static/dbstructure.config.php file.
184 * On first pass, defines DB_UPDATE_VERSION constant.
186 * @see static/dbstructure.config.php
187 * @param boolean $with_addons_structure Whether to tack on addons additional tables
188 * @param string $basePath The base path of this application
192 public static function definition($basePath, $with_addons_structure = true)
194 if (!self::$definition) {
195 if (empty($basePath)) {
196 $basePath = DI::app()->getBasePath();
199 $filename = $basePath . '/static/dbstructure.config.php';
201 if (!is_readable($filename)) {
202 throw new Exception('Missing database structure config file static/dbstructure.config.php');
205 $definition = require $filename;
208 throw new Exception('Corrupted database structure config file static/dbstructure.config.php');
211 self::$definition = $definition;
213 $definition = self::$definition;
216 if ($with_addons_structure) {
217 Hook::callAll('dbstructure_definition', $definition);
224 * Get field data for the given table
226 * @param string $table
227 * @param array $data data fields
228 * @return array fields for the given
230 public static function getFieldsForTable(string $table, array $data = [])
232 $definition = DBStructure::definition('', false);
233 if (empty($definition[$table])) {
237 $fieldnames = array_keys($definition[$table]['fields']);
241 // Assign all field that are present in the table
242 foreach ($fieldnames as $field) {
243 if (isset($data[$field])) {
244 // Limit the length of varchar, varbinary, char and binrary fields
245 if (is_string($data[$field]) && preg_match("/char\((\d*)\)/", $definition[$table]['fields'][$field]['type'], $result)) {
246 $data[$field] = mb_substr($data[$field], 0, $result[1]);
247 } elseif (is_string($data[$field]) && preg_match("/binary\((\d*)\)/", $definition[$table]['fields'][$field]['type'], $result)) {
248 $data[$field] = substr($data[$field], 0, $result[1]);
250 $fields[$field] = $data[$field];
257 private static function createTable($name, $structure, $verbose, $action)
267 foreach ($structure["fields"] AS $fieldname => $field) {
268 $sql_rows[] = "`" . DBA::escape($fieldname) . "` " . self::FieldCommand($field);
269 if (!empty($field['primary'])) {
270 $primary_keys[] = $fieldname;
272 if (!empty($field['foreign'])) {
273 $foreign_keys[$fieldname] = $field;
277 if (!empty($structure["indexes"])) {
278 foreach ($structure["indexes"] AS $indexname => $fieldnames) {
279 $sql_index = self::createIndex($indexname, $fieldnames, "");
280 if (!is_null($sql_index)) {
281 $sql_rows[] = $sql_index;
286 foreach ($foreign_keys AS $fieldname => $parameters) {
287 $sql_rows[] = self::foreignCommand($name, $fieldname, $parameters);
290 if (isset($structure["engine"])) {
291 $engine = " ENGINE=" . $structure["engine"];
294 if (isset($structure["comment"])) {
295 $comment = " COMMENT='" . DBA::escape($structure["comment"]) . "'";
298 $sql = implode(",\n\t", $sql_rows);
300 $sql = sprintf("CREATE TABLE IF NOT EXISTS `%s` (\n\t", DBA::escape($name)) . $sql .
301 "\n)" . $engine . " DEFAULT COLLATE utf8mb4_general_ci" . $comment;
313 private static function FieldCommand($parameters, $create = true)
315 $fieldstruct = $parameters["type"];
317 if (isset($parameters["Collation"])) {
318 $fieldstruct .= " COLLATE " . $parameters["Collation"];
321 if (isset($parameters["not null"])) {
322 $fieldstruct .= " NOT NULL";
325 if (isset($parameters["default"])) {
326 if (strpos(strtolower($parameters["type"]), "int") !== false) {
327 $fieldstruct .= " DEFAULT " . $parameters["default"];
329 $fieldstruct .= " DEFAULT '" . $parameters["default"] . "'";
332 if (isset($parameters["extra"])) {
333 $fieldstruct .= " " . $parameters["extra"];
336 if (isset($parameters["comment"])) {
337 $fieldstruct .= " COMMENT '" . DBA::escape($parameters["comment"]) . "'";
340 /*if (($parameters["primary"] != "") && $create)
341 $fieldstruct .= " PRIMARY KEY";*/
343 return ($fieldstruct);
346 private static function createIndex($indexname, $fieldnames, $method = "ADD")
348 $method = strtoupper(trim($method));
349 if ($method != "" && $method != "ADD") {
350 throw new Exception("Invalid parameter 'method' in self::createIndex(): '$method'");
353 if (in_array($fieldnames[0], ["UNIQUE", "FULLTEXT"])) {
354 $index_type = array_shift($fieldnames);
355 $method .= " " . $index_type;
359 foreach ($fieldnames AS $fieldname) {
364 if (preg_match('|(.+)\((\d+)\)|', $fieldname, $matches)) {
365 $names .= "`" . DBA::escape($matches[1]) . "`(" . intval($matches[2]) . ")";
367 $names .= "`" . DBA::escape($fieldname) . "`";
371 if ($indexname == "PRIMARY") {
372 return sprintf("%s PRIMARY KEY(%s)", $method, $names);
376 $sql = sprintf("%s INDEX `%s` (%s)", $method, DBA::escape($indexname), $names);
381 * Perform a database structure dryrun (means: just simulating)
385 public static function dryRun()
387 self::update(DI::app()->getBasePath(), true, false);
391 * Updates DB structure and returns eventual errors messages
393 * @param bool $enable_maintenance_mode Set the maintenance mode
394 * @param bool $verbose Display the SQL commands
396 * @return string Empty string if the update is successful, error messages otherwise
399 public static function performUpdate(bool $enable_maintenance_mode = true, bool $verbose = false)
401 if ($enable_maintenance_mode) {
402 DI::config()->set('system', 'maintenance', 1);
405 $status = self::update(DI::app()->getBasePath(), $verbose, true);
407 if ($enable_maintenance_mode) {
408 DI::config()->set('system', 'maintenance', 0);
409 DI::config()->set('system', 'maintenance_reason', '');
416 * Updates DB structure from the installation and returns eventual errors messages
418 * @param string $basePath The base path of this application
420 * @return string Empty string if the update is successful, error messages otherwise
423 public static function install(string $basePath)
425 return self::update($basePath, false, true, true);
429 * Updates DB structure and returns eventual errors messages
431 * @param string $basePath The base path of this application
432 * @param bool $verbose
433 * @param bool $action Whether to actually apply the update
434 * @param bool $install Is this the initial update during the installation?
435 * @param array $tables An array of the database tables
436 * @param array $definition An array of the definition tables
437 * @return string Empty string if the update is successful, error messages otherwise
440 private static function update($basePath, $verbose, $action, $install = false, array $tables = null, array $definition = null)
442 $in_maintenance_mode = DI::config()->get('system', 'maintenance');
444 if ($action && !$install && self::isUpdating()) {
445 return DI::l10n()->t('Another database update is currently running.');
448 if ($in_maintenance_mode) {
449 DI::config()->set('system', 'maintenance_reason', DI::l10n()->t('%s: Database update', DateTimeFormat::utcNow() . ' ' . date('e')));
452 // ensure that all initial values exist. This test has to be done prior and after the structure check.
453 // Prior is needed if the specific tables already exists - after is needed when they had been created.
454 self::checkInitialValues();
458 Logger::info('updating structure');
460 // Get the current structure
463 if (is_null($tables)) {
464 $tables = DBA::toArray(DBA::p("SHOW TABLES"));
467 if (DBA::isResult($tables)) {
468 foreach ($tables AS $table) {
469 $table = current($table);
471 Logger::info('updating structure', ['table' => $table]);
472 $database[$table] = self::tableStructure($table);
476 // Get the definition
477 if (is_null($definition)) {
478 $definition = self::definition($basePath);
481 // MySQL >= 5.7.4 doesn't support the IGNORE keyword in ALTER TABLE statements
482 if ((version_compare(DBA::serverInfo(), '5.7.4') >= 0) &&
483 !(strpos(DBA::serverInfo(), 'MariaDB') !== false)) {
490 foreach ($definition AS $name => $structure) {
491 $is_new_table = false;
496 if (!isset($database[$name])) {
497 $r = self::createTable($name, $structure, $verbose, $action);
498 if (!DBA::isResult($r)) {
499 $errors .= self::printUpdateError($name);
501 $is_new_table = true;
503 foreach ($structure["indexes"] AS $indexname => $fieldnames) {
504 if (isset($database[$name]["indexes"][$indexname])) {
505 $current_index_definition = implode(",", $database[$name]["indexes"][$indexname]);
507 $current_index_definition = "__NOT_SET__";
509 $new_index_definition = implode(",", $fieldnames);
510 if ($current_index_definition != $new_index_definition) {
511 if ($fieldnames[0] == "UNIQUE") {
514 $temp_name = "temp-" . $name;
521 * Drop the index if it isn't present in the definition
522 * or the definition differ from current status
523 * and index name doesn't start with "local_"
525 foreach ($database[$name]["indexes"] as $indexname => $fieldnames) {
526 $current_index_definition = implode(",", $fieldnames);
527 if (isset($structure["indexes"][$indexname])) {
528 $new_index_definition = implode(",", $structure["indexes"][$indexname]);
530 $new_index_definition = "__NOT_SET__";
532 if ($current_index_definition != $new_index_definition && substr($indexname, 0, 6) != 'local_') {
533 $sql2 = self::dropIndex($indexname);
535 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
537 $sql3 .= ", " . $sql2;
541 // Compare the field structure field by field
542 foreach ($structure["fields"] AS $fieldname => $parameters) {
543 if (!isset($database[$name]["fields"][$fieldname])) {
544 $sql2 = self::addTableField($fieldname, $parameters);
546 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
548 $sql3 .= ", " . $sql2;
551 // Compare the field definition
552 $field_definition = $database[$name]["fields"][$fieldname];
554 // Remove the relation data that is used for the referential integrity
555 unset($parameters['relation']);
556 unset($parameters['foreign']);
558 // We change the collation after the indexes had been changed.
559 // This is done to avoid index length problems.
560 // So here we always ensure that there is no need to change it.
561 unset($parameters['Collation']);
562 unset($field_definition['Collation']);
564 // Only update the comment when it is defined
565 if (!isset($parameters['comment'])) {
566 $parameters['comment'] = "";
569 $current_field_definition = DBA::cleanQuery(implode(",", $field_definition));
570 $new_field_definition = DBA::cleanQuery(implode(",", $parameters));
571 if ($current_field_definition != $new_field_definition) {
572 $sql2 = self::modifyTableField($fieldname, $parameters);
574 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
576 $sql3 .= ", " . $sql2;
584 * Create the index if the index don't exists in database
585 * or the definition differ from the current status.
586 * Don't create keys if table is new
588 if (!$is_new_table) {
589 foreach ($structure["indexes"] AS $indexname => $fieldnames) {
590 if (isset($database[$name]["indexes"][$indexname])) {
591 $current_index_definition = implode(",", $database[$name]["indexes"][$indexname]);
593 $current_index_definition = "__NOT_SET__";
595 $new_index_definition = implode(",", $fieldnames);
596 if ($current_index_definition != $new_index_definition) {
597 $sql2 = self::createIndex($indexname, $fieldnames);
599 // Fetch the "group by" fields for unique indexes
600 $group_by = self::groupBy($fieldnames);
603 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
605 $sql3 .= ", " . $sql2;
611 $existing_foreign_keys = $database[$name]['foreign_keys'];
614 // Compare the field structure field by field
615 foreach ($structure["fields"] AS $fieldname => $parameters) {
616 if (empty($parameters['foreign'])) {
620 $constraint = self::getConstraintName($name, $fieldname, $parameters);
622 unset($existing_foreign_keys[$constraint]);
624 if (empty($database[$name]['foreign_keys'][$constraint])) {
625 $sql2 = self::addForeignKey($name, $fieldname, $parameters);
628 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
630 $sql3 .= ", " . $sql2;
635 foreach ($existing_foreign_keys as $param) {
636 $sql2 = self::dropForeignKey($param['CONSTRAINT_NAME']);
639 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
641 $sql3 .= ", " . $sql2;
645 if (isset($database[$name]["table_status"]["TABLE_COMMENT"])) {
646 $structurecomment = $structure["comment"] ?? '';
647 if ($database[$name]["table_status"]["TABLE_COMMENT"] != $structurecomment) {
648 $sql2 = "COMMENT = '" . DBA::escape($structurecomment) . "'";
651 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
653 $sql3 .= ", " . $sql2;
658 if (isset($database[$name]["table_status"]["ENGINE"]) && isset($structure['engine'])) {
659 if ($database[$name]["table_status"]["ENGINE"] != $structure['engine']) {
660 $sql2 = "ENGINE = '" . DBA::escape($structure['engine']) . "'";
663 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
665 $sql3 .= ", " . $sql2;
670 if (isset($database[$name]["table_status"]["TABLE_COLLATION"])) {
671 if ($database[$name]["table_status"]["TABLE_COLLATION"] != 'utf8mb4_general_ci') {
672 $sql2 = "DEFAULT COLLATE utf8mb4_general_ci";
675 $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
677 $sql3 .= ", " . $sql2;
686 // Now have a look at the field collations
687 // Compare the field structure field by field
688 foreach ($structure["fields"] AS $fieldname => $parameters) {
689 // Compare the field definition
690 $field_definition = ($database[$name]["fields"][$fieldname] ?? '') ?: ['Collation' => ''];
692 // Define the default collation if not given
693 if (!isset($parameters['Collation']) && !empty($field_definition['Collation'])) {
694 $parameters['Collation'] = 'utf8mb4_general_ci';
696 $parameters['Collation'] = null;
699 if ($field_definition['Collation'] != $parameters['Collation']) {
700 $sql2 = self::modifyTableField($fieldname, $parameters);
701 if (($sql3 == "") || (substr($sql3, -2, 2) == "; ")) {
702 $sql3 .= "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
704 $sql3 .= ", " . $sql2;
711 if (substr($sql3, -2, 2) != "; ") {
716 if ($is_unique && $ignore == '') {
717 foreach ($database[$name]["fields"] AS $fieldname => $parameters) {
718 $field_list .= 'ANY_VALUE(`' . $fieldname . '`),';
720 $field_list = rtrim($field_list, ',');
724 // Ensure index conversion to unique removes duplicates
725 if ($is_unique && ($temp_name != $name)) {
727 echo "SET session old_alter_table=1;\n";
729 echo "DROP TABLE IF EXISTS `" . $temp_name . "`;\n";
730 echo "CREATE TABLE `" . $temp_name . "` LIKE `" . $name . "`;\n";
736 if ($is_unique && ($temp_name != $name)) {
738 echo "SET session old_alter_table=0;\n";
740 echo "INSERT INTO `" . $temp_name . "` SELECT " . DBA::anyValueFallback($field_list) . " FROM `" . $name . "`" . $group_by . ";\n";
741 echo "DROP TABLE `" . $name . "`;\n";
742 echo "RENAME TABLE `" . $temp_name . "` TO `" . $name . "`;\n";
748 if ($in_maintenance_mode) {
749 DI::config()->set('system', 'maintenance_reason', DI::l10n()->t('%s: updating %s table.', DateTimeFormat::utcNow() . ' ' . date('e'), $name));
752 // Ensure index conversion to unique removes duplicates
753 if ($is_unique && ($temp_name != $name)) {
755 DBA::e("SET session old_alter_table=1;");
757 $r = DBA::e("DROP TABLE IF EXISTS `" . $temp_name . "`;");
758 if (!DBA::isResult($r)) {
759 $errors .= self::printUpdateError($sql3);
763 $r = DBA::e("CREATE TABLE `" . $temp_name . "` LIKE `" . $name . "`;");
764 if (!DBA::isResult($r)) {
765 $errors .= self::printUpdateError($sql3);
772 if (!DBA::isResult($r)) {
773 $errors .= self::printUpdateError($sql3);
775 if ($is_unique && ($temp_name != $name)) {
777 DBA::e("SET session old_alter_table=0;");
779 $r = DBA::e("INSERT INTO `" . $temp_name . "` SELECT " . $field_list . " FROM `" . $name . "`" . $group_by . ";");
780 if (!DBA::isResult($r)) {
781 $errors .= self::printUpdateError($sql3);
784 $r = DBA::e("DROP TABLE `" . $name . "`;");
785 if (!DBA::isResult($r)) {
786 $errors .= self::printUpdateError($sql3);
789 $r = DBA::e("RENAME TABLE `" . $temp_name . "` TO `" . $name . "`;");
790 if (!DBA::isResult($r)) {
791 $errors .= self::printUpdateError($sql3);
800 View::create(false, $action);
802 self::checkInitialValues();
804 if ($action && !$install) {
806 DI::config()->set('system', 'dbupdate', self::UPDATE_FAILED);
808 DI::config()->set('system', 'dbupdate', self::UPDATE_SUCCESSFUL);
815 private static function tableStructure($table)
817 // This query doesn't seem to be executable as a prepared statement
818 $indexes = DBA::toArray(DBA::p("SHOW INDEX FROM " . DBA::quoteIdentifier($table)));
820 $fields = DBA::selectToArray(['INFORMATION_SCHEMA' => 'COLUMNS'],
821 ['COLUMN_NAME', 'COLUMN_TYPE', 'IS_NULLABLE', 'COLUMN_DEFAULT', 'EXTRA',
822 'COLUMN_KEY', 'COLLATION_NAME', 'COLUMN_COMMENT'],
823 ["`TABLE_SCHEMA` = ? AND `TABLE_NAME` = ?",
824 DBA::databaseName(), $table]);
826 $foreign_keys = DBA::selectToArray(['INFORMATION_SCHEMA' => 'KEY_COLUMN_USAGE'],
827 ['COLUMN_NAME', 'CONSTRAINT_NAME', 'REFERENCED_TABLE_NAME', 'REFERENCED_COLUMN_NAME'],
828 ["`TABLE_SCHEMA` = ? AND `TABLE_NAME` = ? AND `REFERENCED_TABLE_SCHEMA` IS NOT NULL",
829 DBA::databaseName(), $table]);
831 $table_status = DBA::selectFirst(['INFORMATION_SCHEMA' => 'TABLES'],
832 ['ENGINE', 'TABLE_COLLATION', 'TABLE_COMMENT'],
833 ["`TABLE_SCHEMA` = ? AND `TABLE_NAME` = ?",
834 DBA::databaseName(), $table]);
840 if (DBA::isResult($foreign_keys)) {
841 foreach ($foreign_keys as $foreign_key) {
842 $parameters = ['foreign' => [$foreign_key['REFERENCED_TABLE_NAME'] => $foreign_key['REFERENCED_COLUMN_NAME']]];
843 $constraint = self::getConstraintName($table, $foreign_key['COLUMN_NAME'], $parameters);
844 $foreigndata[$constraint] = $foreign_key;
848 if (DBA::isResult($indexes)) {
849 foreach ($indexes AS $index) {
850 if ($index["Key_name"] != "PRIMARY" && $index["Non_unique"] == "0" && !isset($indexdata[$index["Key_name"]])) {
851 $indexdata[$index["Key_name"]] = ["UNIQUE"];
854 if ($index["Index_type"] == "FULLTEXT" && !isset($indexdata[$index["Key_name"]])) {
855 $indexdata[$index["Key_name"]] = ["FULLTEXT"];
858 $column = $index["Column_name"];
860 if ($index["Sub_part"] != "") {
861 $column .= "(" . $index["Sub_part"] . ")";
864 $indexdata[$index["Key_name"]][] = $column;
869 if (DBA::isResult($fields)) {
870 foreach ($fields AS $field) {
871 $search = ['tinyint(1)', 'tinyint(3) unsigned', 'tinyint(4)', 'smallint(5) unsigned', 'smallint(6)', 'mediumint(8) unsigned', 'mediumint(9)', 'bigint(20)', 'int(10) unsigned', 'int(11)'];
872 $replace = ['boolean', 'tinyint unsigned', 'tinyint', 'smallint unsigned', 'smallint', 'mediumint unsigned', 'mediumint', 'bigint', 'int unsigned', 'int'];
873 $field['COLUMN_TYPE'] = str_replace($search, $replace, $field['COLUMN_TYPE']);
875 $fielddata[$field['COLUMN_NAME']]['type'] = $field['COLUMN_TYPE'];
877 if ($field['IS_NULLABLE'] == 'NO') {
878 $fielddata[$field['COLUMN_NAME']]['not null'] = true;
881 if (isset($field['COLUMN_DEFAULT']) && ($field['COLUMN_DEFAULT'] != 'NULL')) {
882 $fielddata[$field['COLUMN_NAME']]['default'] = trim($field['COLUMN_DEFAULT'], "'");
885 if (!empty($field['EXTRA'])) {
886 $fielddata[$field['COLUMN_NAME']]['extra'] = $field['EXTRA'];
889 if ($field['COLUMN_KEY'] == 'PRI') {
890 $fielddata[$field['COLUMN_NAME']]['primary'] = true;
893 $fielddata[$field['COLUMN_NAME']]['Collation'] = $field['COLLATION_NAME'];
894 $fielddata[$field['COLUMN_NAME']]['comment'] = $field['COLUMN_COMMENT'];
898 return ["fields" => $fielddata, "indexes" => $indexdata,
899 "foreign_keys" => $foreigndata, "table_status" => $table_status];
902 private static function dropIndex($indexname)
904 $sql = sprintf("DROP INDEX `%s`", DBA::escape($indexname));
908 private static function addTableField($fieldname, $parameters)
910 $sql = sprintf("ADD `%s` %s", DBA::escape($fieldname), self::FieldCommand($parameters));
914 private static function modifyTableField($fieldname, $parameters)
916 $sql = sprintf("MODIFY `%s` %s", DBA::escape($fieldname), self::FieldCommand($parameters, false));
920 private static function getConstraintName(string $tablename, string $fieldname, array $parameters)
922 $foreign_table = array_keys($parameters['foreign'])[0];
923 $foreign_field = array_values($parameters['foreign'])[0];
925 return $tablename . "-" . $fieldname. "-" . $foreign_table. "-" . $foreign_field;
928 private static function foreignCommand(string $tablename, string $fieldname, array $parameters) {
929 $foreign_table = array_keys($parameters['foreign'])[0];
930 $foreign_field = array_values($parameters['foreign'])[0];
932 $sql = "FOREIGN KEY (`" . $fieldname . "`) REFERENCES `" . $foreign_table . "` (`" . $foreign_field . "`)";
934 if (!empty($parameters['foreign']['on update'])) {
935 $sql .= " ON UPDATE " . strtoupper($parameters['foreign']['on update']);
937 $sql .= " ON UPDATE RESTRICT";
940 if (!empty($parameters['foreign']['on delete'])) {
941 $sql .= " ON DELETE " . strtoupper($parameters['foreign']['on delete']);
943 $sql .= " ON DELETE CASCADE";
949 private static function addForeignKey(string $tablename, string $fieldname, array $parameters)
951 return sprintf("ADD %s", self::foreignCommand($tablename, $fieldname, $parameters));
954 private static function dropForeignKey(string $constraint)
956 return sprintf("DROP FOREIGN KEY `%s`", $constraint);
960 * Constructs a GROUP BY clause from a UNIQUE index definition.
962 * @param array $fieldnames
965 private static function groupBy(array $fieldnames)
967 if ($fieldnames[0] != "UNIQUE") {
971 array_shift($fieldnames);
974 foreach ($fieldnames AS $fieldname) {
979 if (preg_match('|(.+)\((\d+)\)|', $fieldname, $matches)) {
980 $names .= "`" . DBA::escape($matches[1]) . "`";
982 $names .= "`" . DBA::escape($fieldname) . "`";
986 $sql = sprintf(" GROUP BY %s", $names);
991 * Renames columns or the primary key of a table
993 * @todo You cannot rename a primary key if "auto increment" is set
995 * @param string $table Table name
996 * @param array $columns Columns Syntax for Rename: [ $old1 => [ $new1, $type1 ], $old2 => [ $new2, $type2 ], ... ]
997 * Syntax for Primary Key: [ $col1, $col2, ...]
998 * @param int $type The type of renaming (Default is Column)
1000 * @return boolean Was the renaming successful?
1003 public static function rename($table, $columns, $type = self::RENAME_COLUMN)
1005 if (empty($table) || empty($columns)) {
1009 if (!is_array($columns)) {
1013 $table = DBA::escape($table);
1015 $sql = "ALTER TABLE `" . $table . "`";
1017 case self::RENAME_COLUMN:
1018 if (!self::existsColumn($table, array_keys($columns))) {
1021 $sql .= implode(',', array_map(
1022 function ($to, $from) {
1023 return " CHANGE `" . $from . "` `" . $to[0] . "` " . $to[1];
1026 array_keys($columns)
1029 case self::RENAME_PRIMARY_KEY:
1030 if (!self::existsColumn($table, $columns)) {
1033 $sql .= " DROP PRIMARY KEY, ADD PRIMARY KEY(`" . implode('`, `', $columns) . "`)";
1041 $stmt = DBA::p($sql);
1043 if (is_bool($stmt)) {
1055 * Check if the columns of the table exists
1057 * @param string $table Table name
1058 * @param array $columns Columns to check ( Syntax: [ $col1, $col2, .. ] )
1060 * @return boolean Does the table exist?
1063 public static function existsColumn($table, $columns = [])
1065 if (empty($table)) {
1069 if (is_null($columns) || empty($columns)) {
1070 return self::existsTable($table);
1073 $table = DBA::escape($table);
1075 foreach ($columns AS $column) {
1076 $sql = "SHOW COLUMNS FROM `" . $table . "` LIKE '" . $column . "';";
1078 $stmt = DBA::p($sql);
1080 if (is_bool($stmt)) {
1083 $retval = (DBA::numRows($stmt) > 0);
1097 * Check if a foreign key exists for the given table field
1099 * @param string $table
1100 * @param string $field
1103 public static function existsForeignKeyForField(string $table, string $field)
1105 return DBA::exists(['INFORMATION_SCHEMA' => 'KEY_COLUMN_USAGE'],
1106 ["`TABLE_SCHEMA` = ? AND `TABLE_NAME` = ? AND `COLUMN_NAME` = ? AND `REFERENCED_TABLE_SCHEMA` IS NOT NULL",
1107 DBA::databaseName(), $table, $field]);
1110 * Check if a table exists
1112 * @param string|array $table Table name
1114 * @return boolean Does the table exist?
1117 public static function existsTable($table)
1119 if (empty($table)) {
1123 if (is_array($table)) {
1124 $condition = ['table_schema' => key($table), 'table_name' => current($table)];
1126 $condition = ['table_schema' => DBA::databaseName(), 'table_name' => $table];
1129 $result = DBA::exists(['information_schema' => 'tables'], $condition);
1135 * Returns the columns of a table
1137 * @param string $table Table name
1139 * @return array An array of the table columns
1142 public static function getColumns($table)
1144 $stmtColumns = DBA::p("SHOW COLUMNS FROM `" . $table . "`");
1145 return DBA::toArray($stmtColumns);
1149 * Check if initial database values do exist - or create them
1151 public static function checkInitialValues(bool $verbose = false)
1153 if (self::existsTable('verb')) {
1154 if (!DBA::exists('verb', ['id' => 1])) {
1155 foreach (Item::ACTIVITIES as $index => $activity) {
1156 DBA::insert('verb', ['id' => $index + 1, 'name' => $activity], Database::INSERT_IGNORE);
1159 echo "verb: activities added\n";
1161 } elseif ($verbose) {
1162 echo "verb: activities already added\n";
1165 if (!DBA::exists('verb', ['id' => 0])) {
1166 DBA::insert('verb', ['name' => '']);
1167 $lastid = DBA::lastInsertId();
1169 DBA::update('verb', ['id' => 0], ['id' => $lastid]);
1171 echo "Zero verb added\n";
1174 } elseif ($verbose) {
1175 echo "Zero verb already added\n";
1177 } elseif ($verbose) {
1178 echo "verb: Table not found\n";
1181 if (self::existsTable('user') && !DBA::exists('user', ['uid' => 0])) {
1184 "page-flags" => User::PAGE_FLAGS_SOAPBOX,
1185 "account-type" => User::ACCOUNT_TYPE_RELAY,
1187 DBA::insert('user', $user);
1188 $lastid = DBA::lastInsertId();
1190 DBA::update('user', ['uid' => 0], ['uid' => $lastid]);
1192 echo "Zero user added\n";
1195 } elseif (self::existsTable('user') && $verbose) {
1196 echo "Zero user already added\n";
1197 } elseif ($verbose) {
1198 echo "user: Table not found\n";
1201 if (self::existsTable('contact') && !DBA::exists('contact', ['id' => 0])) {
1202 DBA::insert('contact', ['nurl' => '']);
1203 $lastid = DBA::lastInsertId();
1205 DBA::update('contact', ['id' => 0], ['id' => $lastid]);
1207 echo "Zero contact added\n";
1210 } elseif (self::existsTable('contact') && $verbose) {
1211 echo "Zero contact already added\n";
1212 } elseif ($verbose) {
1213 echo "contact: Table not found\n";
1216 if (self::existsTable('tag') && !DBA::exists('tag', ['id' => 0])) {
1217 DBA::insert('tag', ['name' => '']);
1218 $lastid = DBA::lastInsertId();
1220 DBA::update('tag', ['id' => 0], ['id' => $lastid]);
1222 echo "Zero tag added\n";
1225 } elseif (self::existsTable('tag') && $verbose) {
1226 echo "Zero tag already added\n";
1227 } elseif ($verbose) {
1228 echo "tag: Table not found\n";
1231 if (self::existsTable('permissionset')) {
1232 if (!DBA::exists('permissionset', ['id' => 0])) {
1233 DBA::insert('permissionset', ['allow_cid' => '', 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '']);
1234 $lastid = DBA::lastInsertId();
1236 DBA::update('permissionset', ['id' => 0], ['id' => $lastid]);
1238 echo "Zero permissionset added\n";
1241 } elseif ($verbose) {
1242 echo "Zero permissionset already added\n";
1244 if (self::existsTable('item') && !self::existsForeignKeyForField('item', 'psid')) {
1245 $sets = DBA::p("SELECT `psid`, `item`.`uid`, `item`.`private` FROM `item`
1246 LEFT JOIN `permissionset` ON `permissionset`.`id` = `item`.`psid`
1247 WHERE `permissionset`.`id` IS NULL AND NOT `psid` IS NULL");
1248 while ($set = DBA::fetch($sets)) {
1249 if (($set['private'] == Item::PRIVATE) && ($set['uid'] != 0)) {
1250 $owner = User::getOwnerDataById($set['uid']);
1252 $permission = '<' . $owner['id'] . '>';
1259 $fields = ['id' => $set['psid'], 'uid' => $set['uid'], 'allow_cid' => $permission,
1260 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => ''];
1261 DBA::insert('permissionset', $fields);
1265 } elseif ($verbose) {
1266 echo "permissionset: Table not found\n";
1269 if (!self::existsForeignKeyForField('tokens', 'client_id')) {
1270 $tokens = DBA::p("SELECT `tokens`.`id` FROM `tokens`
1271 LEFT JOIN `clients` ON `clients`.`client_id` = `tokens`.`client_id`
1272 WHERE `clients`.`client_id` IS NULL");
1273 while ($token = DBA::fetch($tokens)) {
1274 DBA::delete('tokens', ['id' => $token['id']]);
1276 DBA::close($tokens);
1281 * Checks if a database update is currently running
1285 private static function isUpdating()
1289 $processes = DBA::select(['information_schema' => 'processlist'], ['info'],
1290 ['db' => DBA::databaseName(), 'command' => ['Query', 'Execute']]);
1292 while ($process = DBA::fetch($processes)) {
1293 $parts = explode(' ', $process['info']);
1294 if (in_array(strtolower(array_shift($parts)), ['alter', 'create', 'drop', 'rename'])) {
1299 DBA::close($processes);