Inherit hidden 2

[james-cnz]

This is another attempt to close #83. It's smaller than #98, and it seems to work, including for activity navigation, which was a problem before. It probably needs more testing though. I'm also not sure if performance will be OK on large courses.

[james-cnz]

I tried a bit of performance testing on this. I did 20 page loads in my Moodle sandbox of a course with 50 sections, with and without the change, with performance info turned on. With the change averaged only about 1% slower. I don't know how accurate this is, but it seems promising.

[davidherney]

Thanks @james-cnz ... I am going to test it in order to integrate in the new release.

[davidherney]

Hi @james-cnz ...

I did merge your code with some little changes in the next branch:
https://github.com/davidherney/moodle-format_onetopic/tree/MOODLE_39_inherit_hidden

Please, help me to test before upgrade the new official version.

Saludos

[james-cnz]

I think there is an error. (I don't think it's my change though, I think it's related to #97.)
If a first child tab is hidden, no children are shown when the parent tab is selected. It looks like this is due to renderer.php line:
if ($displaysection == $section - 1) {
this would be better as:
if ($displaysection == $parentsection->section) {
But this is still not quite right, because there can be an error when section 0 is displayed before the tabs and section 1 is set to be a child tab. Also this needs to be changed:
} while ($parentformatoptions['level'] == 1 && $prevsectionindex >= 0);
to, e.g.:
} while ($parentformatoptions['level'] == 1 && $prevsectionindex >= $firstsection);
and add:
$firstsection = ($course->realcoursedisplay == COURSE_DISPLAY_MULTIPAGE) ? 1 : 0;

[davidherney]

Not really because the first tab always is a parent tab, the level parameter is omitted in this case with the condition:
$parenttab == null
in line:
if ($formatoptions['level'] == 0 || $parenttab == null) {

I was testing both cases and not found error. Please, test it in a course.

Gracias

Saludos

[james-cnz]

I did test, but I guess I didn't explain very well.
Steps are:
1/ Create new Onetopic course with 3 topics.
2/ Set hidden sections completely invisible.
3/ Set Topic 2 to child and hidden.
4/ Set Topic 3 to child.
5/ Open Topic 1.
6/ Switch role to student.
Topic 3 should be visible, but isn't.
7/ change renderer.php line 369 from:
if ($displaysection == $section - 1) {
to:
if ($displaysection == $parentsection->section) {
Problem is fixed (maybe need to purge caches to see).
Except now there is a new problem instead:
8/ Set Section 0 before the tabs.
9/ Set topic 1 to child.
Topics 2 and 3 should be visible, but aren't.
10/ Change renderer.php line 359 from:
} while ($parentformatoptions['level'] == 1 && $prevsectionindex >= 0);
to:
} while ($parentformatoptions['level'] == 1 && $prevsectionindex >= $firstsection);
and add before:
$firstsection = ($course->realcoursedisplay == COURSE_DISPLAY_MULTIPAGE) ? 1 : 0;
New problem is fixed (again, maybe need to purge caches to see).

[davidherney]

ah... ok... you have all the reason. The step by step example is useful to test. Thanks for it.

I fixed it now as you suggest.

Saludos