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MDL-64783 analytics: Performance improvements

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- Removed redundant query to analytics_predict_samples
- Analysers API now uses recordsets to iterate through the analysable
  elements. They take the last analysed time into account.
- New method for targets so there is no need to always update the last
  analysis time. Useful for lightweight targets.
This commit is contained in:
David Monllaó
2019-04-09 00:29:57 +02:00
committed by Eloy Lafuente (stronk7)
parent 02dfbf44a7
commit fccc728fcc
18 changed files with 553 additions and 158 deletions
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analytics/classes/analysable.php
-4
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@@ -29,10 +29,6 @@ defined('MOODLE_INTERNAL') || die();
/**
* Any element analysers can analyse.
*
* Analysers get_analysers method return all analysable elements in the site;
* it is important that analysable elements implement lazy loading to avoid
* big memory footprints. See \core_analytics\course example.
*
* @package core_analytics
* @copyright 2016 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later