3b3e2cecf3
Every time one column is changed from null to not null we must ensure that there aren't nulls at all or the DDL statement will fail, as was reported here. The simplest way, just apply for the default when the column is null.
ACTIVITY MODULES
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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