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| [[Techniques]]: Software: [[MediaWiki]]: [[MediaWikiDoc:Developer Documents|Developer Documents]]: [[MediaWikiDoc:Deferred.doc|Deferred.doc]]
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| ==Contents==
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| A few of the database updates required by various functions here
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| can be deferred until after the result page is displayed to the
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| user. For example, updating the view counts, updating the
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| linked-to tables after a save, etc. PHP does not yet have any
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| way to tell the server to actually return and disconnect while
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| still running these updates (as a Java servelet could), but it
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| might have such a feature in the future.
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|
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| We handle these by creating a deferred-update object (in a real
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| O-O language these would be classes that implement an interface)
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| and putting those objects on a global list, then executing the
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| whole list after the page is displayed. We don't do anything
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| smart like collating updates to the same table or such because
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| the list is almost always going to have just one item on it, if
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| that, so it's not worth the trouble.
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This page has been moved to HTYP, the HyperTwin Yellow Pages.