June 2017
Beginner to intermediate
368 pages
8h 31m
English
Content preview from Moodle 3.x Developer's Guide
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Grabbing data
The ad-hoc database query plugin is supported by a great many reports (essentially, SQL queries) contributed by the Moodle community and freely available from https://docs.moodle.org/31/en/ad-hoc_contributed_reports. As an example, let's pull out a report of the number of enrollments of each course on our Moodle site (https://docs.moodle.org/31/en/ad-hoc_contributed_reports#Enrolment_count_in_each_Course). Here's the complete query:
SELECT c.fullname, COUNT(ue.id) AS Enroled FROM prefix_course AS c JOIN prefix_enrol AS en ON en.courseid = c.id JOIN prefix_user_enrolments AS ue ON ue.enrolid = en.id GROUP BY c.id ORDER BY c.fullname
As we are querying the database directly, we do need to pay attention to the efficiency of the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.