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changes.mady.by.user Bruce Conrad

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changes.mady.by.user Phil Windley

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Finally, in line 21 we raise a movie:rated event for future use, if any. This follows the principle of avoiding dead-end rules.

Info

Note that the rate_movie rule uses an event expression to capture the values from the movieID and rating event attributes and assign those to variables. The regular expressions require that those be non-empty, so this rule won’t be selected if they are.

You can alternately use event:attr() in the pre block to save these values.

pre {

movieID = event:attr(”movieID”);

}

Using an application

Our ruleset could be used as the back-end for a web-based single page application, or by some other ruleset. For now, you can just test it using the Testing tab:

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