1 This files describes API changes in core libraries and APIs,
2 information provided here is intended especially for developers.
6 * The actionmenu hideMenu() function now expects an EventFacade object to be passed to it,
7 i.e. a call to M.core.actionmenu.instance.hideMenu() can be changed to M.core.actionmenu.instance.hideMenu(e) to ensure good
8 behaviour when using custom action menus.
9 * Users of the text editor API to manually create a text editor should call set_text before calling use_editor. See MDL-51179.
10 * In the html_editors (tinyMCE, Atto), the manage files button can be hidden by changing the 'enable_filemanagement' option to false.
14 * New methods grade_grade::get_grade_max() and get_grade_min() must be used rather than directly the public properties rawgrademax and rawgrademin.
15 * New method grade_item::is_aggregate_item() indicates when a grade_item is an aggreggated type grade.
16 * \webservice_xmlrpc_client now respects proxy server settings. If your XMLRPC server is available on your local network and not via your proxy server, you may need to add it to the list of proxy
17 server exceptions in $CFG->proxybypass. See MDL-39353 for details.
21 * The authorization procedure in the mdeploy.php script has been improved. The script
22 now relies on the main config.php when deploying an available update.
26 * \core_component::fetch_subsystems() now returns a valid path for completion component instead of null.
30 * Gradebook grade category option "aggregatesubcats" has been removed completely.
31 This means that the database column is removed, the admin settings are removed and
32 the properties from the grade_category object have been removed. If any courses were
33 found to be using this setting, a warning to check the grades will be shown in the
34 course grader report after upgrading the site. The same warning will be shown on
35 courses restored from backup that had this setting enabled (see MDL-47503).
36 * lib/excelllib.class.php has been updated. The class MoodleExcelWorkbook will now only produce excel 2007 files.
37 * renderers: We now remove the suffix _renderable when looking for a render method for a renderable.
38 If you have a renderable class named like "blah_renderable" and have a method on a renderer named "render_blah_renderable"
39 you will need to change the name of your render method to "render_blah" instead, as renderable at the end is no longer accepted.
40 * New functions get_course_and_cm_from_cmid($cmorid, $modulename) and
41 get_course_and_cm_from_instance($instanceorid, $modulename) can be used to
42 more efficiently load these basic data objects at the start of a script.
43 * New function cm_info::create($cm) can be used when you need a cm_info
44 object, but have a $cm which might only be a standard database record.
45 * $CFG->enablegroupmembersonly no longer exists.
46 * Scheduled tasks have gained support for syntax to introduce variability when a
47 task will run across installs. When a when hour or minute are defined as 'R'
48 they will be installed with a random hour/minute value.
49 * Several classes grade_edit_tree_column_xxx were removed since grades setup page
50 has been significantly changed. These classes should not be used outside of
51 gradebook or developers can copy them into their plugins from 2.7 branch.
52 * Google APIs Client Library (lib/google/) has been upgraded to 1.0.5-beta and
53 API has changed dramatically without backward compatibility. Any code accessing
54 it must be amended. It does not apply to lib/googleapi.php. See MDL-47297
55 * Added an extra parameter to the function get_formatted_help_string() (default null) which is used to specify
56 additional string parameters.
57 * User settings node and course node in navigation now support callbacks from admin tools.
58 * grade_get_grades() optional parameteres $itemtype, $itemmodule, $iteminstance are now required.
61 * completion_info->get_incomplete_criteria() is deprecated and will be removed in Moodle 3.0.
62 * grade_category::aggregate_values() is deprecated and will be removed in Moodle 3.0.
63 * groups_filter_users_by_course_module_visible() is deprecated; replace with
64 core_availability\info::filter_user_list. Will be removed in Moodle 3.0.
65 * groups_course_module_visible() is deprecated; replace with $cm->uservisible.
66 * cm_info property $cm->groupmembersonly is deprecated and always returns 0.
67 Use core_availability\info::filter_user_list if trying to determine which
68 other users can see an activity.
69 * cm_info method $cm->is_user_access_restricted_by_group() is deprecated and
70 always returns false. Use $cm->uservisible to determine whether the user can
72 * Constant FEATURE_GROUPMEMBERSONLY (used in module _supports functions) is
74 * cohort_get_visible_list() is deprecated. There is a better function cohort_get_available_cohorts()
75 that respects user capabilities to view cohorts.
76 * enrol_cohort_get_cohorts() and enrol_cohort_search_cohorts() are deprecated since
77 functionality is removed. Please use cohort_get_available_cohorts()
78 * enrol_cohort_enrol_all_users() is deprecated; enrol_manual is now responsible for this action
79 * enrol_cohort_can_view_cohort() is deprecated; replace with cohort_can_view_cohort()
83 * setnew_password_and_mail() and update_internal_user_password() will trigger
84 \core\event\user_password_updated. Previously they used to generate
85 \core\event\user_updated event.
86 * update_internal_user_password() accepts optional boolean $fasthash for fast
88 * user_update_user() and user_create_user() api's accept optional param
89 $triggerevent to avoid respective events to be triggred from the api's.
93 * PHPUnit cannot be installed via PEAR any more, please use composer package manager instead.
94 * $core_renderer->block_move_target() changed to support more verbose move-block-here descriptions.
97 * Significant changes in Logging API. For upgrading existing events_trigger() and
98 add_to_log() see http://docs.moodle.org/dev/Migrating_logging_calls_in_plugins
99 For accessing logs from plugins see http://docs.moodle.org/dev/Migrating_log_access_in_reports
100 * The validation of the following events is now stricter (see MDL-45445):
101 - \core\event\blog_entry_created
102 - \core\event\blog_entry_deleted
103 - \core\event\blog_entry_updated
104 - \core\event\cohort_member_added
105 - \core\event\cohort_member_removed
106 - \core\event\course_category_deleted
107 - \core\event\course_completed
108 - \core\event\course_content_deleted
109 - \core\event\course_created
110 - \core\event\course_deleted
111 - \core\event\course_restored
112 - \core\event\course_section_updated (see MDL-45229)
113 - \core\event\email_failed
114 - \core\event\group_member_added
115 - \core\event\group_member_removed
116 - \core\event\note_created
117 - \core\event\note_deleted
118 - \core\event\note_updated
119 - \core\event\role_assigned
120 - \core\event\role_deleted
121 - \core\event\role_unassigned
122 - \core\event\user_graded
123 - \core\event\user_loggedinas
124 - \core\event\user_profile_viewed
125 - \core\event\webservice_token_created
128 * $module uses in mod/xxx/version.php files is now deprecated. Please use $plugin instead. It will be removed in Moodle 2.10.
129 * Update init methods in all event classes - "level" property was renamed to "edulevel", the level property is now deprecated.
130 * Abstract class \core\event\course_module_instances_list_viewed is deprecated now, use \core\event\instances_list_viewed instead.
131 * Abstract class core\event\content_viewed has been deprecated. Please extend base event or other relevant abstract class.
132 * mod_book\event\instances_list_viewed has been deprecated. Please use mod_book\event\course_module_instance_list_viewed instead.
133 * mod_chat\event\instances_list_viewed has been deprecated. Please use mod_chat\event\course_module_instance_list_viewed instead.
134 * mod_choice\event\instances_list_viewed has been deprecated. Please use mod_choice\event\course_module_instance_list_viewed instead.
135 * mod_feedback\event\instances_list_viewed has been deprecated. Please use mod_feedback\event\course_module_instance_list_viewed instead.
136 * mod_page\event\instances_list_viewed has been deprecated. Please use mod_page\event\course_module_instance_list_viewed instead.
137 * The constants FRONTPAGECOURSELIST, FRONTPAGETOPICONLY & FRONTPAGECOURSELIMIT have been removed.
138 * Conditional availability API has moved and changed. The condition_info class is
139 replaced by \core_availability\info_module, and condition_info_section by
140 \core_availability\info_section. (Code that uses the old classes will generally
142 * coursemodule_visible_for_user() has been deprecated but still works - replaced
143 by a new static function \core_availability\info_module::is_user_visible()
144 * cm_info::is_user_access_restricted_by_conditional_access has been deprecated
145 but still works (it has never done what its name suggests, and is
147 * cm_info and section_info property showavailability has been deprecated, but
148 still works (with the caveat that this information is now per-user).
149 * cm_info and section_info properties availablefrom and availableuntil have been
150 deprecated and always return zero (underlying data doesn't have these values).
151 * section_info property groupingid has been deprecated and always returns zero,
153 * Various cm_info methods have been deprecated in favour of their read-only properties (get_url(), get_content(), get_extra_classes(),
154 get_on_click(), get_custom_data(), get_after_link, get_after_edit_icons)
155 * The ajaxenabled function has been deprecated and always returns true. All code should be fully functional in Javascript.
156 * count_login_failures() has been deprecated, use user_count_login_failures() instead. Refer MDL-42891 for details.
158 Conditional availability (activities and sections):
159 * New conditional availability API in /availability, including new availability
160 condition plugins in /availability/condition. The new API is very similar with
161 regard to checking availability, but any code that modifies availability settings
162 for an activity or section is likely to need substantial changes.
165 * The lightbox attribute for moodle-core-notification-dialogue has been
166 deprecated and replaced by the modal attribute. This was actually
167 changed in Moodle 2.2, but has only been marked as deprecated now. It
168 will be removed in Moodle 2.9.
169 * When destroying any type of dialogue based on moodle-core-notification, the relevant content is also removed from
170 the DOM. Previously it was left orphaned.
173 * The findChildNodes global function has been deprecated. Y.all should
175 * The callback argument to confirm_action and M.util.show_confirm_dialog has been deprecated. If you need to write a
176 confirmation which includes a callback, please use moodle-core-notification-confirmation and attach callbacks to the
179 * New locking api and admin settings to configure the system locking type.
180 * New "Time spent waiting for the database" performance metric displayed along with the
181 other MDL_PERF vars; the change affects both the error logs and the vars displayed in
183 * Changes in the tag API. The component and contextid are now saved when assigning tags to an item. Please see
184 tag/upgrade.txt for more information.
188 * Use new methods from core_component class instead of get_core_subsystems(), get_plugin_types(),
189 get_plugin_list(), get_plugin_list_with_class(), get_plugin_directory(), normalize_component(),
190 get_component_directory() and get_plugin_list_with_file(). The names of the new methods are
191 exactly the same, the only differences are that core_component::get_plugin_types() now always returns
192 full paths and core_component::get_plugin_list() does not accept empty parameter any more.
193 * Use core_text::* instead of textlib:: and also core_collator::* instead of collatorlib::*.
194 * Use new function moodleform::mock_submit() to simulate form submission in unit tests (backported).
195 * New $CFG->localcachedir setting useful for cluster nodes. Admins have to update X-Sendfile aliases if used.
196 * MS SQL Server drivers are now using NVARCHAR(MAX) instead of NTEXT and VARBINARY(MAX) instead of IMAGE,
197 this change should be fully transparent and it should help significantly with add-on compatibility.
198 * The string manager classes were renamed. Note that they should not be modified or used directly,
199 always use get_string_manager() to get instance of the string manager.
200 * The ability to use an 'insecure' rc4encrypt/rc4decrypt key has been removed.
201 * Use $CFG->debugdeveloper instead of debugging('', DEBUG_DEVELOPER).
202 * Use set_debugging(DEBUG_xxx) when changing debugging level for current request.
203 * Function moveto_module() does not modify $mod argument and instead now returns the new module visibility value.
204 * Use behat_selectors::get_allowed_text_selectors() and behat_selectors::get_allowed_selectors() instead of
205 behat_command::$allowedtextselectors and behat_command::$allowedselectors
206 * Subplugins are supported in admin tools and local plugins.
207 * file_packer/zip_packer API has been modified so that key functions support a new file_progress interface
208 to report progress during long operations. Related to this, zip_archive now supports an estimated_count()
209 function that returns an approximate number of entries in the zip faster than the count() function.
210 * Class cm_info no longer extends stdClass. All properties are read-only and calculated on first request only.
211 * Class course_modinfo no longer extends stdClass. All properties are read-only.
212 * Database fields modinfo and sectioncache in table course are removed. Application cache core/coursemodinfo
213 is used instead. Course cache is still reset, rebuilt and retrieved using function rebuild_course_cache() and
214 get_fast_modinfo(). Purging all caches and every core upgrade purges course modinfo cache as well.
215 If function get_fast_modinfo() is called for multiple courses make sure to include field cacherev in course
217 * Internal (noreply and support) user support has been added for sending/receiving message.
218 Use core_user::get_noreply_user() and core_user::get_support_user() to get noreply and support user's respectively.
219 Real users can be used as noreply/support users by setting $CFG->noreplyuserid and $CFG->supportuserid
220 * New function readfile_allow_large() in filelib.php for use when very large files may need sending to user.
221 * Use core_plugin_manager::reset_caches() when changing visibility of plugins.
222 * Implement new method get_enabled_plugins() method in subplugin info classes.
223 * Each plugin should include version information in version.php.
224 * Module and block tables do not contain version column any more, use get_config('xx_yy', 'version') instead.
225 * $USER->password field is intentionally unset so that session data does not contain password hashes.
226 * Use core_shutdown_manager::register_function() instead of register_shutdown_function().
227 * New file packer for .tar.gz files; obtain by calling get_file_packer('application/x-gzip'). Intended initially
228 for use in backup/restore only, as there are limitations on supported filenames. Also new packer for
229 backups which supports both compression formats; get_file_packer('application/vnd.moodle.backup').
230 * New optional parameter to stored_file::get_content_file_handle to open file handle with 'gzopen' instead
231 of 'fopen' to read gzip-compressed files if required.
232 * update_internal_user_password() and setnew_password_and_mail() now trigger user_updated event.
233 * Add thirdpartylibs.xml file to plugins that bundle any 3rd party libraries.
234 * New class introduced to help auto generate zIndex values for modal dialogues. Class "moodle-has-zindex"
235 should set on any element which uses a non-default zindex and needs to ensure it doesn't show above a
237 * $CFG->filelifetime is now used consistently for most file serving operations, the default was lowered
238 to 6 hours from 24 hours because etags and x-sendfile support should make file serving less expensive.
239 * Date format locale charset for windows server will come from calendar type and for gregorian it will use
241 * The library to interact with Box.net (class boxclient) is only compatible with their APIv1 which
242 reaches its end of life on the 14th of Dec. You should migrate your scripts to make usage of the
243 new class boxnet_client(). Note that the method names and return values have changed.
244 * Settings pages are now possible for Calendar type plugins. Calendar type plugins that require a settings page to
245 work properly will need to set their requires version to a number that is equal to or grater than the 2.6.1 release version.
246 * The admin/tool/generator tool was overhauled to use testing data generators and the previous interface to create
247 test data was removed (it was not working correctly anyway). If you were using this tool you will probably need to
251 Various previously deprecated functions have now been altered to throw DEBUG_DEVELOPER debugging notices
252 and will be removed in a future release (target: 2.8), a summary follows:
255 * get_context_instance() -> context_xxxx::instance()
256 * get_context_instance_by_id() -> context::instance_by_id($id)
257 * get_system_context() -> context_system::instance()
258 * context_moved() -> context::update_moved()
259 * preload_course_contexts() -> context_helper::preload_course()
260 * context_instance_preload() -> context_helper::preload_from_record()
261 * context_instance_preload_sql() -> context_helper::get_preload_record_columns_sql()
262 * get_contextlevel_name() -> context_helper::get_level_name()
263 * create_contexts() -> context_helper::create_instances()
264 * cleanup_contexts() -> context_helper::cleanup_instances()
265 * build_context_path() -> context_helper::build_all_paths()
266 * print_context_name() -> $context->get_context_name()
267 * mark_context_dirty() -> $context->mark_dirty()
268 * delete_context() -> $context->delete_content() or context_helper::delete_instance()
269 * get_context_url() -> $context->get_url()
270 * get_course_context() -> $context->get_course_context()
271 * get_parent_contexts() -> $context->get_parent_context_ids()
272 * get_parent_contextid() -> $context->get_parent_context()
273 * get_child_contexts() -> $context->get_child_contexts()
274 * rebuild_contexts() -> $context->reset_paths()
275 * get_user_courses_bycap() -> enrol_get_users_courses()
276 * get_courseid_from_context() -> $context->get_course_context(false)
277 * get_role_context_caps() -> (no replacement)
278 * load_temp_role() -> (no replacement)
279 * remove_temp_roles() -> (no replacement)
280 * get_related_contexts_string() -> $context->get_parent_context_ids(true)
281 * get_recent_enrolments() -> (no replacement)
284 * get_course_participants() -> get_enrolled_users()
285 * is_course_participant() -> is_enrolled()
288 * current_theme() -> $PAGE->theme->name
289 * skip_main_destination() -> $OUTPUT->skip_link_target()
290 * print_container() -> $OUTPUT->container()
291 * print_container_start() -> $OUTPUT->container_start()
292 * print_container_end() -> $OUTPUT->container_end()
293 * print_continue() -> $OUTPUT->continue_button()
294 * print_header() -> $PAGE methods
295 * print_header_simple() -> $PAGE methods
296 * print_side_block() -> $OUTPUT->block()
297 * print_arrow() -> $OUTPUT->arrow()
298 * print_scale_menu_helpbutton() -> $OUTPUT->help_icon_scale($courseid, $scale)
299 * print_checkbox() -> html_writer::checkbox()
302 * print_navigation() -> $OUTPUT->navbar()
303 * build_navigation() -> $PAGE->navbar methods
304 * navmenu() -> (no replacement)
305 * settings_navigation::
306 get_course_modules() -> (no replacement)
308 Files and repositories:
309 * stored_file::replace_content_with() -> stored_file::replace_file_with()
310 * stored_file::set_filesize() -> stored_file::replace_file_with()
311 * stored_file::get_referencelifetime() -> (no replacement)
312 * repository::sync_external_file() -> see repository::sync_reference()
313 * repository::get_file_by_reference() -> repository::sync_reference()
315 get_reference_file_lifetime() -> (no replacement)
316 * repository::sync_individual_file() -> (no replacement)
317 * repository::reset_caches() -> (no replacement)
320 * add_event() -> calendar_event::create()
321 * update_event() -> calendar_event->update()
322 * delete_event() -> calendar_event->delete()
323 * hide_event() -> calendar_event->toggle_visibility(false)
324 * show_event() -> calendar_event->toggle_visibility(true)
327 * filter_text() -> format_text(), format_string()...
328 * httpsrequired() -> $PAGE->https_required()
329 * detect_munged_arguments() -> clean_param([...], PARAM_FILE)
330 * mygroupid() -> groups_get_all_groups()
331 * js_minify() -> core_minify::js_files()
332 * css_minify_css() -> core_minify::css_files()
333 * course_modinfo::build_section_cache() -> (no replacement)
334 * generate_email_supportuser() -> core_user::get_support_user()
337 * session_get_instance()->xxx() -> \core\session\manager::xxx()
338 * session_kill_all() -> \core\session\manager::kill_all_sessions()
339 * session_touch() -> \core\session\manager::touch_session()
340 * session_kill() -> \core\session\manager::kill_session()
341 * session_kill_user() -> \core\session\manager::kill_user_sessions()
342 * session_gc() -> \core\session\manager::gc()
343 * session_set_user() -> \core\session\manager::set_user()
344 * session_is_loggedinas() -> \core\session\manager::is_loggedinas()
345 * session_get_realuser() -> \core\session\manager::get_realuser()
346 * session_loginas() -> \core\session\manager::loginas()
348 User-agent related functions:
349 * check_browser_operating_system() -> core_useragent::check_browser_operating_system()
350 * check_browser_version() -> core_useragent::check_browser_version()
351 * get_device_type() -> core_useragent::get_device_type()
352 * get_device_type_list() -> core_useragent::get_device_type_list()
353 * get_selected_theme_for_device_type() -> core_useragent::get_device_type_theme()
354 * get_device_cfg_var_name() -> core_useragent::get_device_type_cfg_var_name()
355 * set_user_device_type() -> core_useragent::set_user_device_type()
356 * get_user_device_type() -> core_useragent::get_user_device_type()
357 * get_browser_version_classes() -> core_useragent::get_browser_version_classes()
360 * moodle-core-notification has been deprecated with a recommendation of
361 using its subclasses instead. This is to allow for reduced page
362 transport costs. Current subclasses include:
369 Event triggering and event handlers:
370 * All existing events and event handlers should be replaced by new
371 event classes and matching new event observers.
372 * See http://docs.moodle.org/dev/Event_2 for more information.
373 * The following events will be entirely removed, though they can still
374 be captured using handlers, but they should not be used any more.
375 * groups_members_removed -> \core\event\group_member_removed
376 * groups_groupings_groups_removed -> (no replacement)
377 * groups_groups_deleted -> \core\event\group_deleted
378 * groups_groupings_deleted -> \core\event\grouping_deleted
379 * edit_module_post_actions() does not trigger events any more.
383 * New get_course() function for use when obtaining the course record from database. Will
384 reuse existing $COURSE or $SITE globals if possible to improve performance.
388 * The database drivers (moodle_database and subclasses) aren't using anymore the ::columns property
389 for caching database metadata. MUC (databasemeta) is used instead. Any custom DB driver should
390 apply for that change.
391 * The cron output has been changed to include time and memory usage (see cron_trace_time_and_memory()),
392 so any custom utility relying on the old output may require modification.
393 * Function get_max_file_sizes now returns an option for (for example) "Course limit (500MB)" or
394 "Site limit (200MB)" when appropriate with the option set to 0. This function no longer returns
395 an option for 0 bytes. Existing code that was replacing the 0 option in the return
396 from this function with a more sensible message, can now use the return from this function directly.
397 * Functions responsible for output in course/lib.php are deprecated, the code is moved to
398 appropriate renderers: print_section(), print_section_add_menus(), get_print_section_cm_text(),
399 make_editing_buttons()
400 See functions' phpdocs in lib/deprecatedlib.php
401 * Function get_print_section_cm_text() is deprecated, replaced with methods in cm_info
402 * zip_packer may create empty zip archives, there is a new option to ignore
403 problematic files when creating archive
404 * The function delete_course_module was deprecated and has been replaced with
405 course_delete_module. The reason for this was because the function delete_course_module
406 only partially deletes data, so wherever it was called extra code was needed to
407 perform the whole deletion process. The function course_delete_module now takes care
408 of the whole process.
409 * curl::setopt() does not accept constant values any more. As it never worked properly,
410 we decided to make the type check stricter. Now, the keys of the array pass must be a string
411 corresponding to the curl constant name.
412 * Function get_users_listing now return list of users except guest and deleted users. Previously
413 deleted users were excluded by get_users_listing. As guest user is not expected while browsing users,
414 and not included in get_user function, it will not be returned by get_users_listing.
415 * The add_* functions in course/dnduploadlib.php have been deprecated. Plugins should be using the
416 MODNAME_dndupload_register callback instead.
417 * The signature of the add() method of classes implementing the parentable_part_of_admin_tree
418 interface (such as admin_category) has been extended. The new parameter allows the caller
419 to prepend the new node before an existing sibling in the admin tree.
420 * condition_info:get_condition_user_fields($formatoptions) now accepts the optional
421 param $formatoptions, that will determine if the field names are processed by
422 format_string() with the passed options.
423 * remove all references to $CFG->gdversion, GD PHP extension is now required
424 * Formslib will now throw a developer warning if a PARAM_ type hasn't been set for elements which
425 need it. Please set PARAM_RAW explicitly if you do not want any cleaning.
426 * Functions responsible for managing and accessing course categories are moved to class coursecat
427 in lib/coursecatlib.php, functions responsible for rendering courses and categories lists are
428 moved to course/renderer.php. The following global functions are deprecated: make_categories_list(),
429 category_delete_move(), category_delete_full(), move_category(), course_category_hide(),
430 course_category_show(), get_course_category(), create_course_category(), get_all_subcategories(),
431 get_child_categories(), get_categories(), print_my_moodle(), print_remote_course(),
432 print_remote_host(), print_whole_category_list(), print_category_info(), get_course_category_tree(),
433 print_courses(), print_course(), get_category_courses_array(), get_category_courses_array_recursively(),
434 get_courses_wmanagers()
435 See http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
436 * $core_renderer->block_move_target() changed to support more verbose move-block-here descriptions.
437 * Additional (optional) param $onlyactive has been added to get_enrolled_users, count_enrolled_users
438 functions to get information for only active (excluding suspended enrolments) users. Included two
439 helper functions extract_suspended_users, get_suspended_userids to extract suspended user information.
440 * The core_plugin_manager class now provides two new helper methods for getting information
441 about known plugins: get_plugins_of_type() and get_subplugins_of_plugin().
442 * The get_uninstall_url() method of all subclasses of \core\plugininfo\base class is now expected
443 to always return moodle_url. Subclasses can use the new method is_uninstall_allowed()
444 to control the availability of the 'Uninstall' link at the Plugins overview page (previously
445 they would do it by get_uninstall_url() returning null). By default, URL to a new general plugin
446 uninstall tool is returned. Unless the plugin type needs extra steps that can't be handled by
447 plugininfo_xxx::uninstall() method or xmldb_xxx_uninstall() function, this default URL should
448 satisfy all plugin types.
450 Database (DML) layer:
451 * $DB->sql_empty() is deprecated, you have to use sql parameters with empty values instead,
452 please note hardcoding of empty strings in SQL queries breaks execution in Oracle database.
453 * Indexes must not be defined on the same columns as keys, this is now reported as fatal problem.
454 Please note that internally we create indexes instead of foreign keys.
457 * M.util.help_icon has been deprecated. Code should be updated to use moodle-core-popuphelp
458 instead. To do so, remove any existing JS calls to M.util.help_icon from your PHP and ensure
459 that your help link is placed in a span which has the class 'helplink'.
463 * Pagelib: Numerous deprecated functions were removed as classes page_base, page_course
464 and page_generic_activity.
465 * use $CFG->googlemapkey3 instead of removed $CFG->googlemapkey and migrate to Google Maps API V3
466 * Function settings_navigation::add_course_editing_links() is completely removed
467 * function global_navigation::format_display_course_content() is removed completely (the
468 functionality is moved to course format class)
469 * in the function global_navigation::load_generic_course_sections() the argument $courseformat is
471 * New component and itemid columns in groups_members table - this allows plugin to create protected
472 group memberships using 'xx_yy_allow_group_member_remove' callback and there is also a new restore
473 callback 'xx_yy_restore_group_member()'.
474 * New general role assignment restore plugin callback 'xx_yy_restore_role_assignment()'.
475 * functions get_generic_section_name(), get_all_sections(), add_mod_to_section(), get_all_mods()
476 are deprecated. See their phpdocs in lib/deprecatedlib.php on how to replace them
479 * moodle-enrol-notification has been renamed to moodle-core-notification
480 * YUI2 code must now use 2in3, see http://yuilibrary.com/yui/docs/yui/yui-yui2.html
481 * M.util.init_select_autosubmit() and M.util.init_url_select() have been deprecated. Code using this should be updated
482 to use moodle-core-formautosubmit
484 Unit testing changes:
485 * output debugging() is not sent to standard output any more,
486 use $this->assertDebuggingCalled(), $this->assertDebuggingNotCalled(),
487 $this->getDebuggingMessages() or $this->assertResetDebugging() instead.
491 Database layer changes:
492 * objects are not allowed in paramters of DML functions, use explicit casting to strings if necessary
495 * DDL and DML methods which were deprecated in 2.0 have now been removed, they will no longer produce
496 debug messages and will produce fatal errors
500 * send_stored_file() has changed its interface
501 * deleted several resourcelib_embed_* functions from resourcelib.php
505 removed unused libraries:
506 * odbc, base32, CodeSniffer, overlib, apd profiling, kses, Smarty, PEAR Console, swfobject, cssshover.htc, md5.js
509 * new admin/tool plugin type
510 * new context API - old API is still available
511 * deleted users do not have context any more
512 * removed global search
518 * basic suport for restore from 1.9
519 * new mobile devices API
526 * new DML API - http://docs.moodle.org/dev/DML_functions
527 * new DDL API - http://docs.moodle.org/dev/DDL_functions
528 * new file API - http://docs.moodle.org/dev/File_API
529 * new $PAGE and $OUTPUT API
531 * new theme API - http://docs.moodle.org/dev/Theme_changes_in_2.0
532 * new javascript API - http://docs.moodle.org/dev/JavaScript_usage_guide
534 * new local plugin type
535 * new translation support - http://lang.moodle.org
536 * new web service API
543 * new backup/restore API
546 * improved plugin support (aka Frankenstyle)
547 * new registration and hub API
548 * new course completion API
551 * new text editor API
552 * new my moodle and profiles API