NC26 incompatibility.

[C8620]

Starting from Nextcloud 26, OCP\AppFramework\Db\Mapper class has been removed, and application would generate following problem:

"exception": { "Exception": "Error", "Message": "Class \"OCP\\AppFramework\\Db\\Mapper\" not found", "Code": 0, "Trace": [ { "file": "/path/to/nextcloud/lib/composer/composer/ClassLoader.php", "line": 578, "function": "include" }, { "file": "/path/to/nextcloud/lib/composer/composer/ClassLoader.php", "line": 432, "function": "Composer\\Autoload\\{closure}", "class": "Composer\\Autoload\\ClassLoader", "type": "::", "args": [ "*** sensitive parameters replaced ***" ] }, { "file": "/path/to/nextcloud/apps/files_reader/lib/Db/BookmarkMapper.php", "line": 18, "function": "loadClass", "class": "Composer\\Autoload\\ClassLoader", "type": "->" }, { "file": "/path/to/nextcloud/lib/composer/composer/ClassLoader.php", "line": 578, "args": [ "/path/to/nextcloud/apps/files_reader/lib/Db/BookmarkMapper.php" ], "function": "include" }, { "file": "/path/to/nextcloud/lib/composer/composer/ClassLoader.php", "line": 432, "function": "Composer\\Autoload\\{closure}", "class": "Composer\\Autoload\\ClassLoader", "type": "::", "args": [ "*** sensitive parameters replaced ***" ] }, { "function": "loadClass", "class": "Composer\\Autoload\\ClassLoader", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 122, "function": "__construct", "class": "ReflectionClass", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 142, "function": "resolve", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php", "line": 493, "function": "query", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php", "line": 465, "function": "queryNoFallback", "class": "OC\\AppFramework\\DependencyInjection\\DIContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 97, "function": "query", "class": "OC\\AppFramework\\DependencyInjection\\DIContainer", "type": "->" }, { "function": "OC\\AppFramework\\Utility\\{closure}", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->", "args": [ "*** sensitive parameters replaced ***" ] }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 116, "function": "array_map" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 124, "function": "buildClass", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 142, "function": "resolve", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php", "line": 493, "function": "query", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php", "line": 465, "function": "queryNoFallback", "class": "OC\\AppFramework\\DependencyInjection\\DIContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 97, "function": "query", "class": "OC\\AppFramework\\DependencyInjection\\DIContainer", "type": "->" }, { "function": "OC\\AppFramework\\Utility\\{closure}", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->", "args": [ "*** sensitive parameters replaced ***" ] }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 116, "function": "array_map" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 124, "function": "buildClass", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php", "line": 142, "function": "resolve", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php", "line": 493, "function": "query", "class": "OC\\AppFramework\\Utility\\SimpleContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php", "line": 465, "function": "queryNoFallback", "class": "OC\\AppFramework\\DependencyInjection\\DIContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/AppFramework/App.php", "line": 162, "function": "query", "class": "OC\\AppFramework\\DependencyInjection\\DIContainer", "type": "->" }, { "file": "/path/to/nextcloud/lib/private/Route/Router.php", "line": 315, "function": "main", "class": "OC\\AppFramework\\App", "type": "::" }, { "file": "/path/to/nextcloud/lib/base.php", "line": 1056, "function": "match", "class": "OC\\Route\\Router", "type": "->" }, { "file": "/path/to/nextcloud/index.php", "line": 36, "function": "handleRequest", "class": "OC", "type": "::" }

[ErroneousBosch]

It looks like the replacement is OCP\AppFramework\Db\QBMapper (https://github.com/nextcloud/server/blob/master/lib/public/AppFramework/Db/QBMapper.php).

Queries would have to be rebuilt to use IQueryBuilder building rather than direct sql.