]> git.mxchange.org Git - friendica.git/blobdiff - src/Database/DBStructure.php
Move Photo module, update Photo model
[friendica.git] / src / Database / DBStructure.php
index 9abae944ae0e873d8b67a065a95f49fc2f49a07c..3043ae132235b76de62239ffbc9a1fdb442fe959 100644 (file)
@@ -2,19 +2,16 @@
 /**
  * @file src/Database/DBStructure.php
  */
+
 namespace Friendica\Database;
 
 use Exception;
 use Friendica\Core\Config;
 use Friendica\Core\Hook;
 use Friendica\Core\L10n;
+use Friendica\Core\Logger;
 use Friendica\Util\DateTimeFormat;
 
-require_once 'boot.php';
-require_once 'include/dba.php';
-require_once 'include/enotify.php';
-require_once 'include/text.php';
-
 /**
  * @brief This class contain functions for the database management
  *
@@ -22,8 +19,15 @@ require_once 'include/text.php';
  */
 class DBStructure
 {
+       const UPDATE_NOT_CHECKED = 0; // Database check wasn't executed before
+       const UPDATE_SUCCESSFUL  = 1; // Database check was successful
+       const UPDATE_FAILED      = 2; // Database check failed
+
+       const RENAME_COLUMN      = 0;
+       const RENAME_PRIMARY_KEY = 1;
+
        /**
-        * Database structure definition loaded from config/dbstructure.php
+        * Database structure definition loaded from config/dbstructure.config.php
         *
         * @var array
         */
@@ -32,18 +36,19 @@ class DBStructure
        /*
         * Converts all tables from MyISAM to InnoDB
         */
-       public static function convertToInnoDB() {
+       public static function convertToInnoDB()
+       {
                $r = q("SELECT `TABLE_NAME` FROM `information_schema`.`tables` WHERE `engine` = 'MyISAM' AND `table_schema` = '%s'",
                        DBA::escape(DBA::databaseName()));
 
                if (!DBA::isResult($r)) {
-                       echo L10n::t('There are no tables on MyISAM.')."\n";
+                       echo L10n::t('There are no tables on MyISAM.') . "\n";
                        return;
                }
 
                foreach ($r AS $table) {
                        $sql = sprintf("ALTER TABLE `%s` engine=InnoDB;", DBA::escape($table['TABLE_NAME']));
-                       echo $sql."\n";
+                       echo $sql . "\n";
 
                        $result = DBA::e($sql);
                        if (!DBA::isResult($result)) {
@@ -52,155 +57,189 @@ class DBStructure
                }
        }
 
-       /*
-        * send the email and do what is needed to do on update fails
+       /**
+        * @brief Print out database error messages
+        *
+        * @param string $message Message to be added to the error message
         *
-        * @param update_id             (int) number of failed update
-        * @param error_message (str) error message
+        * @return string Error message
         */
-       public static function updateFail($update_id, $error_message) {
-               $a = get_app();
+       private static function printUpdateError($message)
+       {
+               echo L10n::t("\nError %d occurred during database update:\n%s\n",
+                       DBA::errorNo(), DBA::errorMessage());
 
-               //send the administrators an e-mail
-               $admin_mail_list = "'".implode("','", array_map(['Friendica\Database\DBA', 'escape'], explode(",", str_replace(" ", "", Config::get('config', 'admin_email')))))."'";
-               $adminlist = q("SELECT uid, language, email FROM user WHERE email IN (%s)",
-                       $admin_mail_list
-               );
+               return L10n::t('Errors encountered performing database changes: ') . $message . EOL;
+       }
 
-               // No valid result?
-               if (!DBA::isResult($adminlist)) {
-                       logger(sprintf('Cannot notify administrators about update_id=%d, error_message=%s', $update_id, $error_message), LOGGER_INFO);
+       public static function printStructure()
+       {
+               $database = self::definition(false);
 
-                       // Don't continue
-                       return;
-               }
+               echo "-- ------------------------------------------\n";
+               echo "-- " . FRIENDICA_PLATFORM . " " . FRIENDICA_VERSION . " (" . FRIENDICA_CODENAME, ")\n";
+               echo "-- DB_UPDATE_VERSION " . DB_UPDATE_VERSION . "\n";
+               echo "-- ------------------------------------------\n\n\n";
+               foreach ($database AS $name => $structure) {
+                       echo "--\n";
+                       echo "-- TABLE $name\n";
+                       echo "--\n";
+                       self::createTable($name, $structure, true, false);
 
-               // every admin could had different language
-               foreach ($adminlist as $admin) {
-                       $lang = (($admin['language'])?$admin['language']:'en');
-                       L10n::pushLang($lang);
-
-                       $preamble = deindent(L10n::t("
-                               The friendica developers released update %s recently,
-                               but when I tried to install it, something went terribly wrong.
-                               This needs to be fixed soon and I can't do it alone. Please contact a
-                               friendica developer if you can not help me on your own. My database might be invalid.",
-                               $update_id));
-                       $body = L10n::t("The error message is\n[pre]%s[/pre]", $error_message);
-
-                       notification([
-                               'uid'      => $admin['uid'],
-                               'type'     => SYSTEM_EMAIL,
-                               'to_email' => $admin['email'],
-                               'preamble' => $preamble,
-                               'body'     => $body,
-                               'language' => $lang]
-                       );
-                       L10n::popLang();
-               }
-
-               //try the logger
-               logger("CRITICAL: Database structure update failed: ".$error_message);
+                       echo "\n";
+               }
        }
 
+       /**
+        * Loads the database structure definition from the config/dbstructure.config.php file.
+        * On first pass, defines DB_UPDATE_VERSION constant.
+        *
+        * @see config/dbstructure.config.php
+        * @param boolean $with_addons_structure Whether to tack on addons additional tables
+        * @return array
+        * @throws Exception
+        */
+       public static function definition($with_addons_structure = true)
+       {
+               if (!self::$definition) {
+                       $a = \Friendica\BaseObject::getApp();
 
-       private static function tableStructure($table) {
-               $structures = q("DESCRIBE `%s`", $table);
+                       $filename = $a->getBasePath() . '/config/dbstructure.config.php';
 
-               $full_columns = q("SHOW FULL COLUMNS FROM `%s`", $table);
+                       if (!is_readable($filename)) {
+                               throw new Exception('Missing database structure config file config/dbstructure.config.php');
+                       }
 
-               $indexes = q("SHOW INDEX FROM `%s`", $table);
+                       $definition = require $filename;
 
-               $table_status = q("SHOW TABLE STATUS WHERE `name` = '%s'", $table);
+                       if (!$definition) {
+                               throw new Exception('Corrupted database structure config file config/dbstructure.config.php');
+                       }
 
-               if (DBA::isResult($table_status)) {
-                       $table_status = $table_status[0];
+                       self::$definition = $definition;
                } else {
-                       $table_status = [];
+                       $definition = self::$definition;
                }
 
-               $fielddata = [];
-               $indexdata = [];
-
-               if (DBA::isResult($indexes)) {
-                       foreach ($indexes AS $index) {
-                               if ($index['Key_name'] != 'PRIMARY' && $index['Non_unique'] == '0' && !isset($indexdata[$index["Key_name"]])) {
-                                       $indexdata[$index["Key_name"]] = ['UNIQUE'];
-                               }
+               if ($with_addons_structure) {
+                       Hook::callAll('dbstructure_definition', $definition);
+               }
 
-                               $column = $index["Column_name"];
+               return $definition;
+       }
 
-                               if ($index["Sub_part"] != "") {
-                                       $column .= "(".$index["Sub_part"].")";
-                               }
+       private static function createTable($name, $structure, $verbose, $action)
+       {
+               $r = true;
 
-                               $indexdata[$index["Key_name"]][] = $column;
+               $engine = "";
+               $comment = "";
+               $sql_rows = [];
+               $primary_keys = [];
+               foreach ($structure["fields"] AS $fieldname => $field) {
+                       $sql_rows[] = "`" . DBA::escape($fieldname) . "` " . self::FieldCommand($field);
+                       if (!empty($field['primary'])) {
+                               $primary_keys[] = $fieldname;
                        }
                }
-               if (DBA::isResult($structures)) {
-                       foreach ($structures AS $field) {
-                               // Replace the default size values so that we don't have to define them
-                               $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)'];
-                               $replace = ['boolean', 'tinyint unsigned', 'tinyint', 'smallint unsigned', 'smallint', 'mediumint unsigned', 'mediumint', 'bigint', 'int unsigned', 'int'];
-                               $field["Type"] = str_replace($search, $replace, $field["Type"]);
 
-                               $fielddata[$field["Field"]]["type"] = $field["Type"];
-                               if ($field["Null"] == "NO") {
-                                       $fielddata[$field["Field"]]["not null"] = true;
+               if (!empty($structure["indexes"])) {
+                       foreach ($structure["indexes"] AS $indexname => $fieldnames) {
+                               $sql_index = self::createIndex($indexname, $fieldnames, "");
+                               if (!is_null($sql_index)) {
+                                       $sql_rows[] = $sql_index;
                                }
+                       }
+               }
 
-                               if (isset($field["Default"])) {
-                                       $fielddata[$field["Field"]]["default"] = $field["Default"];
-                               }
+               if (isset($structure["engine"])) {
+                       $engine = " ENGINE=" . $structure["engine"];
+               }
 
-                               if ($field["Extra"] != "") {
-                                       $fielddata[$field["Field"]]["extra"] = $field["Extra"];
-                               }
+               if (isset($structure["comment"])) {
+                       $comment = " COMMENT='" . DBA::escape($structure["comment"]) . "'";
+               }
 
-                               if ($field["Key"] == "PRI") {
-                                       $fielddata[$field["Field"]]["primary"] = true;
-                               }
-                       }
+               $sql = implode(",\n\t", $sql_rows);
+
+               $sql = sprintf("CREATE TABLE IF NOT EXISTS `%s` (\n\t", DBA::escape($name)) . $sql .
+                       "\n)" . $engine . " DEFAULT COLLATE utf8mb4_general_ci" . $comment;
+               if ($verbose) {
+                       echo $sql . ";\n";
                }
-               if (DBA::isResult($full_columns)) {
-                       foreach ($full_columns AS $column) {
-                               $fielddata[$column["Field"]]["Collation"] = $column["Collation"];
-                               $fielddata[$column["Field"]]["comment"] = $column["Comment"];
-                       }
+
+               if ($action) {
+                       $r = DBA::e($sql);
                }
 
-               return ["fields" => $fielddata, "indexes" => $indexdata, "table_status" => $table_status];
+               return $r;
        }
 
-       public static function printStructure() {
-               $database = self::definition(false);
+       private static function FieldCommand($parameters, $create = true)
+       {
+               $fieldstruct = $parameters["type"];
 
-               echo "-- ------------------------------------------\n";
-               echo "-- ".FRIENDICA_PLATFORM." ".FRIENDICA_VERSION." (".FRIENDICA_CODENAME,")\n";
-               echo "-- DB_UPDATE_VERSION ".DB_UPDATE_VERSION."\n";
-               echo "-- ------------------------------------------\n\n\n";
-               foreach ($database AS $name => $structure) {
-                       echo "--\n";
-                       echo "-- TABLE $name\n";
-                       echo "--\n";
-                       self::createTable($name, $structure, true, false);
+               if (isset($parameters["Collation"])) {
+                       $fieldstruct .= " COLLATE " . $parameters["Collation"];
+               }
 
-                       echo "\n";
+               if (isset($parameters["not null"])) {
+                       $fieldstruct .= " NOT NULL";
+               }
+
+               if (isset($parameters["default"])) {
+                       if (strpos(strtolower($parameters["type"]), "int") !== false) {
+                               $fieldstruct .= " DEFAULT " . $parameters["default"];
+                       } else {
+                               $fieldstruct .= " DEFAULT '" . $parameters["default"] . "'";
+                       }
+               }
+               if (isset($parameters["extra"])) {
+                       $fieldstruct .= " " . $parameters["extra"];
+               }
+
+               if (isset($parameters["comment"])) {
+                       $fieldstruct .= " COMMENT '" . DBA::escape($parameters["comment"]) . "'";
                }
+
+               /*if (($parameters["primary"] != "") && $create)
+                       $fieldstruct .= " PRIMARY KEY";*/
+
+               return ($fieldstruct);
        }
 
-       /**
-        * @brief Print out database error messages
-        *
-        * @param string $message Message to be added to the error message
-        *
-        * @return string Error message
-        */
-       private static function printUpdateError($message) {
-               echo L10n::t("\nError %d occurred during database update:\n%s\n",
-                       DBA::errorNo(), DBA::errorMessage());
+       private static function createIndex($indexname, $fieldnames, $method = "ADD")
+       {
+               $method = strtoupper(trim($method));
+               if ($method != "" && $method != "ADD") {
+                       throw new Exception("Invalid parameter 'method' in self::createIndex(): '$method'");
+               }
+
+               if (in_array($fieldnames[0], ["UNIQUE", "FULLTEXT"])) {
+                       $index_type = array_shift($fieldnames);
+                       $method .= " " . $index_type;
+               }
+
+               $names = "";
+               foreach ($fieldnames AS $fieldname) {
+                       if ($names != "") {
+                               $names .= ",";
+                       }
+
+                       if (preg_match('|(.+)\((\d+)\)|', $fieldname, $matches)) {
+                               $names .= "`" . DBA::escape($matches[1]) . "`(" . intval($matches[2]) . ")";
+                       } else {
+                               $names .= "`" . DBA::escape($fieldname) . "`";
+                       }
+               }
 
-               return L10n::t('Errors encountered performing database changes: ').$message.EOL;
+               if ($indexname == "PRIMARY") {
+                       return sprintf("%s PRIMARY KEY(%s)", $method, $names);
+               }
+
+
+               $sql = sprintf("%s INDEX `%s` (%s)", $method, DBA::escape($indexname), $names);
+               return ($sql);
        }
 
        /**
@@ -213,15 +252,16 @@ class DBStructure
         * @param array $definition An array of the definition tables
         * @return string Empty string if the update is successful, error messages otherwise
         */
-       public static function update($verbose, $action, $install = false, array $tables = null, array $definition = null) {
+       public static function update($verbose, $action, $install = false, array $tables = null, array $definition = null)
+       {
                if ($action && !$install) {
                        Config::set('system', 'maintenance', 1);
-                       Config::set('system', 'maintenance_reason', L10n::t('%s: Database update', DateTimeFormat::utcNow().' '.date('e')));
+                       Config::set('system', 'maintenance_reason', L10n::t('%s: Database update', DateTimeFormat::utcNow() . ' ' . date('e')));
                }
 
                $errors = '';
 
-               logger('updating structure', LOGGER_DEBUG);
+               Logger::log('updating structure', Logger::DEBUG);
 
                // Get the current structure
                $database = [];
@@ -234,7 +274,7 @@ class DBStructure
                        foreach ($tables AS $table) {
                                $table = current($table);
 
-                               logger(sprintf('updating structure for table %s ...', $table), LOGGER_DEBUG);
+                               Logger::log(sprintf('updating structure for table %s ...', $table), Logger::DEBUG);
                                $database[$table] = self::tableStructure($table);
                        }
                }
@@ -268,16 +308,16 @@ class DBStructure
                        } else {
                                foreach ($structure["indexes"] AS $indexname => $fieldnames) {
                                        if (isset($database[$name]["indexes"][$indexname])) {
-                                               $current_index_definition = implode(",",$database[$name]["indexes"][$indexname]);
+                                               $current_index_definition = implode(",", $database[$name]["indexes"][$indexname]);
                                        } else {
                                                $current_index_definition = "__NOT_SET__";
                                        }
-                                       $new_index_definition = implode(",",$fieldnames);
+                                       $new_index_definition = implode(",", $fieldnames);
                                        if ($current_index_definition != $new_index_definition) {
                                                if ($fieldnames[0] == "UNIQUE") {
                                                        $is_unique = true;
                                                        if ($ignore == "") {
-                                                               $temp_name = "temp-".$name;
+                                                               $temp_name = "temp-" . $name;
                                                        }
                                                }
                                        }
@@ -289,29 +329,29 @@ class DBStructure
                                 * and index name doesn't start with "local_"
                                 */
                                foreach ($database[$name]["indexes"] as $indexname => $fieldnames) {
-                                       $current_index_definition = implode(",",$fieldnames);
+                                       $current_index_definition = implode(",", $fieldnames);
                                        if (isset($structure["indexes"][$indexname])) {
-                                               $new_index_definition = implode(",",$structure["indexes"][$indexname]);
+                                               $new_index_definition = implode(",", $structure["indexes"][$indexname]);
                                        } else {
                                                $new_index_definition = "__NOT_SET__";
                                        }
                                        if ($current_index_definition != $new_index_definition && substr($indexname, 0, 6) != 'local_') {
-                                               $sql2=self::dropIndex($indexname);
+                                               $sql2 = self::dropIndex($indexname);
                                                if ($sql3 == "") {
-                                                       $sql3 = "ALTER".$ignore." TABLE `".$temp_name."` ".$sql2;
+                                                       $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                } else {
-                                                       $sql3 .= ", ".$sql2;
+                                                       $sql3 .= ", " . $sql2;
                                                }
                                        }
                                }
                                // Compare the field structure field by field
                                foreach ($structure["fields"] AS $fieldname => $parameters) {
                                        if (!isset($database[$name]["fields"][$fieldname])) {
-                                               $sql2=self::addTableField($fieldname, $parameters);
+                                               $sql2 = self::addTableField($fieldname, $parameters);
                                                if ($sql3 == "") {
-                                                       $sql3 = "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                       $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                } else {
-                                                       $sql3 .= ", ".$sql2;
+                                                       $sql3 .= ", " . $sql2;
                                                }
                                        } else {
                                                // Compare the field definition
@@ -336,9 +376,9 @@ class DBStructure
                                                if ($current_field_definition != $new_field_definition) {
                                                        $sql2 = self::modifyTableField($fieldname, $parameters);
                                                        if ($sql3 == "") {
-                                                               $sql3 = "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                               $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                        } else {
-                                                               $sql3 .= ", ".$sql2;
+                                                               $sql3 .= ", " . $sql2;
                                                        }
                                                }
                                        }
@@ -353,48 +393,47 @@ class DBStructure
                        if (!$is_new_table) {
                                foreach ($structure["indexes"] AS $indexname => $fieldnames) {
                                        if (isset($database[$name]["indexes"][$indexname])) {
-                                               $current_index_definition = implode(",",$database[$name]["indexes"][$indexname]);
+                                               $current_index_definition = implode(",", $database[$name]["indexes"][$indexname]);
                                        } else {
                                                $current_index_definition = "__NOT_SET__";
                                        }
-                                       $new_index_definition = implode(",",$fieldnames);
+                                       $new_index_definition = implode(",", $fieldnames);
                                        if ($current_index_definition != $new_index_definition) {
                                                $sql2 = self::createIndex($indexname, $fieldnames);
 
                                                // Fetch the "group by" fields for unique indexes
-                                               if ($fieldnames[0] == "UNIQUE") {
-                                                       $group_by = self::groupBy($indexname, $fieldnames);
-                                               }
+                                               $group_by = self::groupBy($fieldnames);
                                                if ($sql2 != "") {
                                                        if ($sql3 == "") {
-                                                               $sql3 = "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                               $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                        } else {
-                                                               $sql3 .= ", ".$sql2;
+                                                               $sql3 .= ", " . $sql2;
                                                        }
                                                }
                                        }
                                }
 
                                if (isset($database[$name]["table_status"]["Comment"])) {
-                                       if ($database[$name]["table_status"]["Comment"] != $structure['comment']) {
-                                               $sql2 = "COMMENT = '".DBA::escape($structure['comment'])."'";
+                                       $structurecomment = defaults($structure, "comment", "");
+                                       if ($database[$name]["table_status"]["Comment"] != $structurecomment) {
+                                               $sql2 = "COMMENT = '" . DBA::escape($structurecomment) . "'";
 
                                                if ($sql3 == "") {
-                                                       $sql3 = "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                       $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                } else {
-                                                       $sql3 .= ", ".$sql2;
+                                                       $sql3 .= ", " . $sql2;
                                                }
                                        }
                                }
 
                                if (isset($database[$name]["table_status"]["Engine"]) && isset($structure['engine'])) {
                                        if ($database[$name]["table_status"]["Engine"] != $structure['engine']) {
-                                               $sql2 = "ENGINE = '".DBA::escape($structure['engine'])."'";
+                                               $sql2 = "ENGINE = '" . DBA::escape($structure['engine']) . "'";
 
                                                if ($sql3 == "") {
-                                                       $sql3 = "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                       $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                } else {
-                                                       $sql3 .= ", ".$sql2;
+                                                       $sql3 .= ", " . $sql2;
                                                }
                                        }
                                }
@@ -404,9 +443,9 @@ class DBStructure
                                                $sql2 = "DEFAULT COLLATE utf8mb4_general_ci";
 
                                                if ($sql3 == "") {
-                                                       $sql3 = "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                       $sql3 = "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                } else {
-                                                       $sql3 .= ", ".$sql2;
+                                                       $sql3 .= ", " . $sql2;
                                                }
                                        }
                                }
@@ -431,9 +470,9 @@ class DBStructure
                                        if ($field_definition['Collation'] != $parameters['Collation']) {
                                                $sql2 = self::modifyTableField($fieldname, $parameters);
                                                if (($sql3 == "") || (substr($sql3, -2, 2) == "; ")) {
-                                                       $sql3 .= "ALTER" . $ignore . " TABLE `".$temp_name."` ".$sql2;
+                                                       $sql3 .= "ALTER" . $ignore . " TABLE `" . $temp_name . "` " . $sql2;
                                                } else {
-                                                       $sql3 .= ", ".$sql2;
+                                                       $sql3 .= ", " . $sql2;
                                                }
                                        }
                                }
@@ -458,27 +497,27 @@ class DBStructure
                                                if ($ignore != "") {
                                                        echo "SET session old_alter_table=1;\n";
                                                } else {
-                                                       echo "DROP TABLE IF EXISTS `".$temp_name."`;\n";
-                                                       echo "CREATE TABLE `".$temp_name."` LIKE `".$name."`;\n";
+                                                       echo "DROP TABLE IF EXISTS `" . $temp_name . "`;\n";
+                                                       echo "CREATE TABLE `" . $temp_name . "` LIKE `" . $name . "`;\n";
                                                }
                                        }
 
-                                       echo $sql3."\n";
+                                       echo $sql3 . "\n";
 
                                        if ($is_unique && ($temp_name != $name)) {
                                                if ($ignore != "") {
                                                        echo "SET session old_alter_table=0;\n";
                                                } else {
-                                                       echo "INSERT INTO `".$temp_name."` SELECT ".DBA::anyValueFallback($field_list)." FROM `".$name."`".$group_by.";\n";
-                                                       echo "DROP TABLE `".$name."`;\n";
-                                                       echo "RENAME TABLE `".$temp_name."` TO `".$name."`;\n";
+                                                       echo "INSERT INTO `" . $temp_name . "` SELECT " . DBA::anyValueFallback($field_list) . " FROM `" . $name . "`" . $group_by . ";\n";
+                                                       echo "DROP TABLE `" . $name . "`;\n";
+                                                       echo "RENAME TABLE `" . $temp_name . "` TO `" . $name . "`;\n";
                                                }
                                        }
                                }
 
                                if ($action) {
                                        if (!$install) {
-                                               Config::set('system', 'maintenance_reason', L10n::t('%s: updating %s table.', DateTimeFormat::utcNow().' '.date('e'), $name));
+                                               Config::set('system', 'maintenance_reason', L10n::t('%s: updating %s table.', DateTimeFormat::utcNow() . ' ' . date('e'), $name));
                                        }
 
                                        // Ensure index conversion to unique removes duplicates
@@ -486,13 +525,13 @@ class DBStructure
                                                if ($ignore != "") {
                                                        DBA::e("SET session old_alter_table=1;");
                                                } else {
-                                                       $r = DBA::e("DROP TABLE IF EXISTS `".$temp_name."`;");
+                                                       $r = DBA::e("DROP TABLE IF EXISTS `" . $temp_name . "`;");
                                                        if (!DBA::isResult($r)) {
                                                                $errors .= self::printUpdateError($sql3);
                                                                return $errors;
                                                        }
 
-                                                       $r = DBA::e("CREATE TABLE `".$temp_name."` LIKE `".$name."`;");
+                                                       $r = DBA::e("CREATE TABLE `" . $temp_name . "` LIKE `" . $name . "`;");
                                                        if (!DBA::isResult($r)) {
                                                                $errors .= self::printUpdateError($sql3);
                                                                return $errors;
@@ -508,17 +547,17 @@ class DBStructure
                                                if ($ignore != "") {
                                                        DBA::e("SET session old_alter_table=0;");
                                                } else {
-                                                       $r = DBA::e("INSERT INTO `".$temp_name."` SELECT ".$field_list." FROM `".$name."`".$group_by.";");
+                                                       $r = DBA::e("INSERT INTO `" . $temp_name . "` SELECT " . $field_list . " FROM `" . $name . "`" . $group_by . ";");
                                                        if (!DBA::isResult($r)) {
                                                                $errors .= self::printUpdateError($sql3);
                                                                return $errors;
                                                        }
-                                                       $r = DBA::e("DROP TABLE `".$name."`;");
+                                                       $r = DBA::e("DROP TABLE `" . $name . "`;");
                                                        if (!DBA::isResult($r)) {
                                                                $errors .= self::printUpdateError($sql3);
                                                                return $errors;
                                                        }
-                                                       $r = DBA::e("RENAME TABLE `".$temp_name."` TO `".$name."`;");
+                                                       $r = DBA::e("RENAME TABLE `" . $temp_name . "` TO `" . $name . "`;");
                                                        if (!DBA::isResult($r)) {
                                                                $errors .= self::printUpdateError($sql3);
                                                                return $errors;
@@ -534,142 +573,114 @@ class DBStructure
                        Config::set('system', 'maintenance_reason', '');
 
                        if ($errors) {
-                               Config::set('system', 'dbupdate', DB_UPDATE_FAILED);
+                               Config::set('system', 'dbupdate', self::UPDATE_FAILED);
                        } else {
-                               Config::set('system', 'dbupdate', DB_UPDATE_SUCCESSFUL);
+                               Config::set('system', 'dbupdate', self::UPDATE_SUCCESSFUL);
                        }
                }
 
                return $errors;
        }
 
-       private static function FieldCommand($parameters, $create = true) {
-               $fieldstruct = $parameters["type"];
+       private static function tableStructure($table)
+       {
+               $structures = q("DESCRIBE `%s`", $table);
 
-               if (isset($parameters["Collation"])) {
-                       $fieldstruct .= " COLLATE ".$parameters["Collation"];
-               }
+               $full_columns = q("SHOW FULL COLUMNS FROM `%s`", $table);
 
-               if (isset($parameters["not null"])) {
-                       $fieldstruct .= " NOT NULL";
-               }
+               $indexes = q("SHOW INDEX FROM `%s`", $table);
 
-               if (isset($parameters["default"])) {
-                       if (strpos(strtolower($parameters["type"]),"int")!==false) {
-                               $fieldstruct .= " DEFAULT ".$parameters["default"];
-                       } else {
-                               $fieldstruct .= " DEFAULT '".$parameters["default"]."'";
-                       }
-               }
-               if (isset($parameters["extra"])) {
-                       $fieldstruct .= " ".$parameters["extra"];
-               }
+               $table_status = q("SHOW TABLE STATUS WHERE `name` = '%s'", $table);
 
-               if (isset($parameters["comment"])) {
-                       $fieldstruct .= " COMMENT '".DBA::escape($parameters["comment"])."'";
+               if (DBA::isResult($table_status)) {
+                       $table_status = $table_status[0];
+               } else {
+                       $table_status = [];
                }
 
-               /*if (($parameters["primary"] != "") && $create)
-                       $fieldstruct .= " PRIMARY KEY";*/
+               $fielddata = [];
+               $indexdata = [];
 
-               return($fieldstruct);
-       }
+               if (DBA::isResult($indexes)) {
+                       foreach ($indexes AS $index) {
+                               if ($index["Key_name"] != "PRIMARY" && $index["Non_unique"] == "0" && !isset($indexdata[$index["Key_name"]])) {
+                                       $indexdata[$index["Key_name"]] = ["UNIQUE"];
+                               }
 
-       private static function createTable($name, $structure, $verbose, $action) {
-               $r = true;
+                               if ($index["Index_type"] == "FULLTEXT" && !isset($indexdata[$index["Key_name"]])) {
+                                       $indexdata[$index["Key_name"]] = ["FULLTEXT"];
+                               }
 
-               $engine = "";
-               $comment = "";
-               $sql_rows = [];
-               $primary_keys = [];
-               foreach ($structure["fields"] AS $fieldname => $field) {
-                       $sql_rows[] = "`".DBA::escape($fieldname)."` ".self::FieldCommand($field);
-                       if (x($field,'primary') && $field['primary']!='') {
-                               $primary_keys[] = $fieldname;
-                       }
-               }
+                               $column = $index["Column_name"];
 
-               if (!empty($structure["indexes"])) {
-                       foreach ($structure["indexes"] AS $indexname => $fieldnames) {
-                               $sql_index = self::createIndex($indexname, $fieldnames, "");
-                               if (!is_null($sql_index)) {
-                                       $sql_rows[] = $sql_index;
+                               if ($index["Sub_part"] != "") {
+                                       $column .= "(" . $index["Sub_part"] . ")";
                                }
+
+                               $indexdata[$index["Key_name"]][] = $column;
                        }
                }
+               if (DBA::isResult($structures)) {
+                       foreach ($structures AS $field) {
+                               // Replace the default size values so that we don't have to define them
+                               $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)'];
+                               $replace = ['boolean', 'tinyint unsigned', 'tinyint', 'smallint unsigned', 'smallint', 'mediumint unsigned', 'mediumint', 'bigint', 'int unsigned', 'int'];
+                               $field["Type"] = str_replace($search, $replace, $field["Type"]);
 
-               if (isset($structure["engine"])) {
-                       $engine = " ENGINE=" . $structure["engine"];
-               }
+                               $fielddata[$field["Field"]]["type"] = $field["Type"];
+                               if ($field["Null"] == "NO") {
+                                       $fielddata[$field["Field"]]["not null"] = true;
+                               }
 
-               if (isset($structure["comment"])) {
-                       $comment = " COMMENT='" . DBA::escape($structure["comment"]) . "'";
-               }
+                               if (isset($field["Default"])) {
+                                       $fielddata[$field["Field"]]["default"] = $field["Default"];
+                               }
 
-               $sql = implode(",\n\t", $sql_rows);
+                               if ($field["Extra"] != "") {
+                                       $fielddata[$field["Field"]]["extra"] = $field["Extra"];
+                               }
 
-               $sql = sprintf("CREATE TABLE IF NOT EXISTS `%s` (\n\t", DBA::escape($name)).$sql.
-                               "\n)" . $engine . " DEFAULT COLLATE utf8mb4_general_ci" . $comment;
-               if ($verbose) {
-                       echo $sql.";\n";
+                               if ($field["Key"] == "PRI") {
+                                       $fielddata[$field["Field"]]["primary"] = true;
+                               }
+                       }
                }
-
-               if ($action) {
-                       $r = DBA::e($sql);
+               if (DBA::isResult($full_columns)) {
+                       foreach ($full_columns AS $column) {
+                               $fielddata[$column["Field"]]["Collation"] = $column["Collation"];
+                               $fielddata[$column["Field"]]["comment"] = $column["Comment"];
+                       }
                }
 
-               return $r;
-       }
-
-       private static function addTableField($fieldname, $parameters) {
-               $sql = sprintf("ADD `%s` %s", DBA::escape($fieldname), self::FieldCommand($parameters));
-               return($sql);
-       }
-
-       private static function modifyTableField($fieldname, $parameters) {
-               $sql = sprintf("MODIFY `%s` %s", DBA::escape($fieldname), self::FieldCommand($parameters, false));
-               return($sql);
+               return ["fields" => $fielddata, "indexes" => $indexdata, "table_status" => $table_status];
        }
 
-       private static function dropIndex($indexname) {
+       private static function dropIndex($indexname)
+       {
                $sql = sprintf("DROP INDEX `%s`", DBA::escape($indexname));
-               return($sql);
+               return ($sql);
        }
 
-       private static function createIndex($indexname, $fieldnames, $method = "ADD") {
-               $method = strtoupper(trim($method));
-               if ($method!="" && $method!="ADD") {
-                       throw new Exception("Invalid parameter 'method' in self::createIndex(): '$method'");
-               }
-
-               if ($fieldnames[0] == "UNIQUE") {
-                       array_shift($fieldnames);
-                       $method .= ' UNIQUE';
-               }
-
-               $names = "";
-               foreach ($fieldnames AS $fieldname) {
-                       if ($names != "") {
-                               $names .= ",";
-                       }
-
-                       if (preg_match('|(.+)\((\d+)\)|', $fieldname, $matches)) {
-                               $names .= "`".DBA::escape($matches[1])."`(".intval($matches[2]).")";
-                       } else {
-                               $names .= "`".DBA::escape($fieldname)."`";
-                       }
-               }
-
-               if ($indexname == "PRIMARY") {
-                       return sprintf("%s PRIMARY KEY(%s)", $method, $names);
-               }
-
+       private static function addTableField($fieldname, $parameters)
+       {
+               $sql = sprintf("ADD `%s` %s", DBA::escape($fieldname), self::FieldCommand($parameters));
+               return ($sql);
+       }
 
-               $sql = sprintf("%s INDEX `%s` (%s)", $method, DBA::escape($indexname), $names);
-               return($sql);
+       private static function modifyTableField($fieldname, $parameters)
+       {
+               $sql = sprintf("MODIFY `%s` %s", DBA::escape($fieldname), self::FieldCommand($parameters, false));
+               return ($sql);
        }
 
-       private static function groupBy($indexname, $fieldnames) {
+       /**
+        * Constructs a GROUP BY clause from a UNIQUE index definition.
+        *
+        * @param array $fieldnames
+        * @return string
+        */
+       private static function groupBy(array $fieldnames)
+       {
                if ($fieldnames[0] != "UNIQUE") {
                        return "";
                }
@@ -683,9 +694,9 @@ class DBStructure
                        }
 
                        if (preg_match('|(.+)\((\d+)\)|', $fieldname, $matches)) {
-                               $names .= "`".DBA::escape($matches[1])."`";
+                               $names .= "`" . DBA::escape($matches[1]) . "`";
                        } else {
-                               $names .= "`".DBA::escape($fieldname)."`";
+                               $names .= "`" . DBA::escape($fieldname) . "`";
                        }
                }
 
@@ -694,28 +705,62 @@ class DBStructure
        }
 
        /**
-        *      Check if a table exists
+        * Renames columns or the primary key of a table
         *
-        * @param string $table Table name
+        * @todo You cannot rename a primary key if "auto increment" is set
+        *
+        * @param string $table            Table name
+        * @param array  $columns          Columns Syntax for Rename: [ $old1 => [ $new1, $type1 ], $old2 => [ $new2, $type2 ], ... ] )
+        *                                 Syntax for Primary Key: [ $col1, $col2, ...] )
+        * @param int    $type             The type of renaming (Default is Column)
+        *
+        * @return boolean Was the renaming successful?
         *
-        * @return boolean Does the table exist?
         */
-       public static function existsTable($table)
+       public static function rename($table, $columns, $type = self::RENAME_COLUMN)
        {
-               if (empty($table)) {
+               if (empty($table) || empty($columns)) {
+                       return false;
+               }
+
+               if (!is_array($columns)) {
                        return false;
                }
 
                $table = DBA::escape($table);
 
-               $sql = "SHOW TABLES LIKE '" . $table . "';";
+               $sql = "ALTER TABLE `" . $table . "`";
+               switch ($type) {
+                       case self::RENAME_COLUMN:
+                               if (!self::existsColumn($table, array_keys($columns))) {
+                                       return false;
+                               }
+                               $sql .= implode(',', array_map(
+                                       function ($to, $from) {
+                                               return " CHANGE `" . $from . "` `" . $to[0] . "` " . $to[1];
+                                       },
+                                       $columns,
+                                       array_keys($columns)
+                               ));
+                               break;
+                       case self::RENAME_PRIMARY_KEY:
+                               if (!self::existsColumn($table, $columns)) {
+                                       return false;
+                               }
+                               $sql .= " DROP PRIMARY KEY, ADD PRIMARY KEY(`" . implode('`, `', $columns) . "`)";
+                               break;
+                       default:
+                               return false;
+               }
+
+               $sql .= ";";
 
                $stmt = DBA::p($sql);
 
                if (is_bool($stmt)) {
                        $retval = $stmt;
                } else {
-                       $retval = (DBA::numRows($stmt) > 0);
+                       $retval = true;
                }
 
                DBA::close($stmt);
@@ -724,14 +769,15 @@ class DBStructure
        }
 
        /**
-        *      Check if the columns of the table exists
+        *    Check if the columns of the table exists
         *
         * @param string $table   Table name
         * @param array  $columns Columns to check ( Syntax: [ $col1, $col2, .. ] )
         *
         * @return boolean Does the table exist?
         */
-       public static function existsColumn($table, $columns = []) {
+       public static function existsColumn($table, $columns = [])
+       {
                if (empty($table)) {
                        return false;
                }
@@ -763,106 +809,33 @@ class DBStructure
                return true;
        }
 
-       const RENAME_COLUMN = 0;
-       const RENAME_PRIMARY_KEY = 1;
-
        /**
-        * Renames columns or the primary key of a table
-        * @todo You cannot rename a primary key if "auto increment" is set
+        *    Check if a table exists
         *
-        * @param string $table    Table name
-        * @param array  $columns  Columns Syntax for Rename: [ $old1 => [ $new1, $type1 ], $old2 => [ $new2, $type2 ], ... ] )
-        *                                 Syntax for Primary Key: [ $col1, $col2, ...] )
-        * @param int    $type     The type of renaming (Default is Column)
-        *
-        * @return boolean Was the renaming successful?
+        * @param string $table Table name
         *
+        * @return boolean Does the table exist?
         */
-       public static function rename($table, $columns, $type = self::RENAME_COLUMN) {
-               if (empty($table) || empty($columns)) {
-                       return false;
-               }
-
-               if (!is_array($columns)) {
+       public static function existsTable($table)
+       {
+               if (empty($table)) {
                        return false;
                }
 
                $table = DBA::escape($table);
 
-               $sql = "ALTER TABLE `" . $table . "`";
-               switch ($type) {
-                       case self::RENAME_COLUMN:
-                               if (!self::existsColumn($table, array_keys($columns))) {
-                                       return false;
-                               }
-                               $sql .= implode(',', array_map(
-                                       function ($to, $from) {
-                                               return " CHANGE `" . $from . "` `" . $to[0] . "` " . $to[1];
-                                       },
-                                       $columns,
-                                       array_keys($columns)
-                               ));
-                               break;
-                       case self::RENAME_PRIMARY_KEY:
-                               if (!self::existsColumn($table, $columns)) {
-                                       return false;
-                               }
-                               $sql .= " DROP PRIMARY KEY, ADD PRIMARY KEY(`" . implode('`, `', $columns) . "`)";
-                               break;
-                       default:
-                               return false;
-               }
-
-               $sql .= ";";
+               $sql = "SHOW TABLES LIKE '" . $table . "';";
 
                $stmt = DBA::p($sql);
 
                if (is_bool($stmt)) {
                        $retval = $stmt;
                } else {
-                       $retval = true;
+                       $retval = (DBA::numRows($stmt) > 0);
                }
 
                DBA::close($stmt);
 
                return $retval;
        }
-
-       /**
-        * Loads the database structure definition from the config/dbstructure.php file.
-        * On first pass, defines DB_UPDATE_VERSION constant.
-        *
-        * @see config/dbstructure.php
-        * @param boolean $with_addons_structure Whether to tack on addons additional tables
-        * @return array
-        * @throws Exception
-        */
-       public static function definition($with_addons_structure = true)
-       {
-               if (!self::$definition) {
-                       $a = \Friendica\BaseObject::getApp();
-
-                       $filename = $a->getBasePath() . '/config/dbstructure.php';
-
-                       if (!is_readable($filename)) {
-                               throw new Exception('Missing database structure config file config/dbstructure.php');
-                       }
-
-                       $definition = require $filename;
-
-                       if (!$definition) {
-                               throw new Exception('Corrupted database structure config file config/dbstructure.php');
-                       }
-
-                       self::$definition = $definition;
-               } else {
-                       $definition = self::$definition;
-               }
-
-               if ($with_addons_structure) {
-                       Hook::callAll('dbstructure_definition', $definition);
-               }
-
-               return $definition;
-       }
 }