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Within the forum_get_discussion_neighbours() function of forum when the discussions timemodified (last post) is the same, there is a bug that does strange things when calculating the prev and next discussions. Note that, in real life, this is really hard to achieve, but in tests, when multiple discussions and post can be created by generators in the same second (specially when the test machine is quick), chances of facing that problem are higher. By adding 1 second wait, we ensure that the discussions won't have the same timemodified (last post) and workaround the problem. No mater of that, the problem deserves an issue to be created so we guarantee from code that it also works ok when the same timemodified (last post) situation happens.
ACTIVITY MODULES
----------------
These are main modules in Moodle, allowing various activities.
Each of these modules contains a number of expected components:
mod_form.php: a form to setup/update a module instance
version.php: defines some meta-info and provides upgrading code
pix/icon.gif: a 16x16 icon for the module
db/install.xml: an SQL dump of all the required db tables and data
index.php: a page to list all instances in a course
view.php: a page to view a particular instance
lib.php: any/all functions defined by the module should be in here.
constants should be defined using MODULENAME_xxxxxx
functions should be defined using modulename_xxxxxx
There are a number of standard functions:
modulename_add_instance()
modulename_update_instance()
modulename_delete_instance()
modulename_user_complete()
modulename_user_outline()
modulename_cron()
modulename_print_recent_activity()
If you are a developer and interested in developing new Modules see:
Moodle Documentation: http://moodle.org/doc
Moodle Community: http://moodle.org/community