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[Cache] Improve the docs about cache namespaces#20966
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ec396c3 intosymfony:7.3Uh oh!
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| You can even combine cache namespaces with :ref:`cache tags <cache-using-cache-tags>` | ||
| for more advanced needs. | ||
| There is no built-in way to invalidate caches by namespace. Instead, the recommended |
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Couldn't this be achieved with$cache->withSubNamespace('ns')->clear()?
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It depends on the implementation: some support this, others not (they might return false or clear the full pool depending on the implementation.)
Not all backends support clearing by prefix...
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After talking with@nicolas-grekas about this, I think we should improve the recent docs about cache namespaces with more details like invalidation, a bit more context about when to use this, etc.