Backup 2.0 course report data
Template:Development:Backup 2.0Moodle 2.0
Introduction
In Moodle 2, course reports can have data tables and files which can be backed up with a course. (To create data tables in a course report, use the standard db folder.)
None of the standard course reports have any course-related data so it is not obvious how to code the backup and restore for them. This page gives an example theme as a case study which you can use to implement your own backup code for a course report which contains per-course data.
Note: Course report data backup requires Moodle 2.0.4 or later.
Example: the 'lazystudents' report
As an example I am using a theoretical report which checks the time that each user visits Moodle on each day over the past week. The report produces a list of students who did not access Moodle before a certain time on any day last week. For example, this might include all students who never accessed Moodle before 10:00 on any day last week.
The report has two configuration options which can both be set per-course:
- The hour after which students are considered 'lazy' (e.g. 10).
- A custom image to display with the report (e.g. some courses might prefer a tortoise picture while others prefer a sloth).
The hour is stored in the table coursereport_lazystudents which has 3 fields id, courseid, and lazyhour.
The image file is stored using the Moodle file API at the course context, in the coursereport_lazystudents component and the image file area.
Backup
The backup code is in the file course/report/lazystudents/backup/moodle2/backup_coursereport_lazystudents_plugin.class.php. Leaving out the headers, this file looks like:
(WORK IN PROGRESS)
