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Drupal 8 aliasmanager example12/26/2023 ![]() cacheNeedsWriting defaults to FALSE, no need to set it to FALSE then when loading from cache. Ok, this should be a much better and has a ton of unit test coverage :) Why are we preloading only in getAliasByPath()? Wouldn't also getPathByAlias() benefit from preloaded mappings? - I suspect that we want to prevent preloading SQL queries in case only one "path from alias" is needed (for current url/page). Why we cache only paths (as also mentioned by It seems that we could cache entire path-alias mapping instead of preloading it fro DB.Ģ. I was asking myself two cache-related questions when working on this:ġ. $this->preloadPathLookups($cached_paths) key to the alias manager for use in subsequent lookups. +++ -1,128 +0,0 // We need to pass on the list of previously cached system paths for this one thing that is definitely broken ATM is this (wrong CID being used to load from cache - $path instead of $this->cacheKey). So we can probably just remove that and use $this->lookupMap and $this->noAlias directly in writeCache() ? That said, merging this seems to make a lot of sense and it can go even further, the cache write method still uses getPathLookups(), which is a public method on the interface, the only reason for that seems to be that the cache wrapper can do the caching? The method is very limited, because it is not possible to solve the problems above while still using it as it has no understanding of language and if an alias existed. This might not be the correct issue, but with all the refactoring, we could possibly fix at least some of the issues here? What about caching the alias hits and misses separately in the cache, so that we don't have to attempt to load the alias for them? Why are we not caching the aliases btw, should be possible to do that by language? this seems to be because there are no aliases, so they're added to noAlias, which isn't added to the cache. I was displayed 100 of them in a view and I have 100 queries due to that right now.Īnd even after changing them to en, caching still doesn't seem to be working, because it never ends up in the cache. In my case, I was importing nodes with langcode not specificed (und), they now explicitly pass along the language context. Looks like the AliasManager right now can only write back caches of a single language, the first in the lookup map? We assume that aliases will be needed for the majority of these paths during subsequent requests, and load them in a single query during path alias lookup.Noticed during profiling that something is going wrong right now with alias caching and languages. Overrides CacheDecoratorInterface::setCacheKeyĬache an array of the paths available on each page. Specify the key to use when writing the cache. Wrapper method for REQUEST_TIME constant. Overrides AliasManagerInterface::getPathByAlias Given the alias, return the path it represents. Overrides AliasManagerInterface::getAliasByPath Overrides AliasManagerInterface::cacheClear Holds the array of whitelisted path aliases.Ĭlear internal caches in alias manager. Holds an array of previously looked up paths for the current request path. Holds an array of aliases for which no path was found. Holds an array of paths that have no alias. ![]() Holds the map of path lookups per language. Language manager for retrieving the default langcode when none is specified. Whether preloaded path lookups has already been loaded. ![]() class \Drupal\Core\Path\ AliasManager implements CacheDecoratorInterface, AliasManagerInterfaceįile core/lib/Drupal/Core/Path/AliasManager.php, line 13 Namespace.The default alias manager implementation.
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