convert moodle_url (all other fields are numbers or strings) to string before caching and then back to moodle_url when restoring.
Otherwise serialized modinfo can contain \0 byte which cause problems in Postgres DB
Prior to the fix, if you did not have a capability like mod/page:view,
then you woulds still see the link to the Page activity in the course
section, but when you clicked on it, you would run into a
require_capability error.
It is a principle that we never show users a link to a page they are not
allowed to access, therefore, when users do not have mod/...:view, they
should not see the link on the course page.
This patch implements this in the cm_info class, in a similar way to how
access restrictions by groups works.
It does not assume that the mod/...:view capability exists. If the
capability does not exist, then users are not prevented from seeing the
link.
- Core upgrade MUST NOT call rebuild_course_cache() at all - update DB directly instead
- Plugins MUST call rebuild_course_cache(.., TRUE) for clearing the course cache and can not update DB directly
- Plugins MUST NOT call rebuild_course_cache() unless for clearing the cache
- Created function upgrade_ensure_not_running() to be included in other functions that can not be used during upgrade
- Course format may define additional fields (format options) to store for course and each section
- Edit course form allows to edit format-specific options and refreshes their list on format change
- Course format may provide it's own form for editing a section
- Default form for editing section allows to edit all format-specific fields
- Class section_info refactored, it defines magic methods such as __get() to access basic section
information and format-specific options (retrieved only on the first request)
- format_base::update_course_format_options() allows to watch pre-update state of the course,
format_legacy automatically copies the options with the same names between formats
- added function get_module_types_names() returning the list of localised strings used for module names;
- added function cm_info::get_used_module_names();
- added magic properties cm_info:: and cm_info:: returning human readable module name;
- replaced usage of function get_all_mods() with get_fast_modinfo() and get_module_types_names();
- function print_section_add_menus() may now retrieve the modules names list itself;
- deprecated function get_all_mods()
- added class format_base as the base for all course formats
- added class format_site for the pseudo-format 'site' used for displaying activities on the front page
- added class format_legacy that overrides format_base functions with calling old-style 'callback_xxx' functions
- replaced all usage of 'callback_xxx' functions with format_base methods
- made arguments of get_section_name(), get_course_url() more flexible
- deprecated function get_generic_section_name(), it's contents is moved to format_base
- global_navigation::format_display_course_content() is removed, plugins can supress the sections navigations using extend_course_navigation()
