MDL-44070 Conditional availability enhancements (5): deprecate old lib
[moodle.git] / lib / upgrade.txt
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690a55f6 1This files describes API changes in core libraries and APIs,
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2information provided here is intended especially for developers.
3
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4=== 2.7 ===
5
9e00d46b 6* PHPUnit cannot be installed via PEAR any more, please use composer package manager instead.
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7* $core_renderer->block_move_target() changed to support more verbose move-block-here descriptions.
8
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9Events and Logging:
10* Significant changes in Logging API. For upgrading existing events_trigger() and
11 add_to_log() see http://docs.moodle.org/dev/Migrating_logging_calls_in_plugins
e2cb3ffa 12 For accessing logs from plugins see http://docs.moodle.org/dev/Migrating_log_access_in_reports
1480f6ea 13
a4582a51 14DEPRECATIONS:
994e5662 15* $module uses in mod/xxx/version.php files is now deprecated. Please use $plugin instead. It will be removed in Moodle 2.10.
3345e24f 16* Update init methods in all event classes - "level" property was renamed to "edulevel", the level property is now deprecated.
c4b0d6dc 17* Abstract class \core\event\course_module_instances_list_viewed is deprecated now, use \core\event\instances_list_viewed instead.
e1b16f97 18* Abstract class core\event\content_viewed has been deprecated. Please extend base event or other relevant abstract class.
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19* mod_book\event\instances_list_viewed has been deprecated. Please use mod_book\event\course_module_instance_list_viewed instead.
20* mod_chat\event\instances_list_viewed has been deprecated. Please use mod_chat\event\course_module_instance_list_viewed instead.
21* mod_choice\event\instances_list_viewed has been deprecated. Please use mod_choice\event\course_module_instance_list_viewed instead.
22* mod_feedback\event\instances_list_viewed has been deprecated. Please use mod_feedback\event\course_module_instance_list_viewed instead.
23* mod_page\event\instances_list_viewed has been deprecated. Please use mod_page\event\course_module_instance_list_viewed instead.
1f1a8f03 24* The constants FRONTPAGECOURSELIST, FRONTPAGETOPICONLY & FRONTPAGECOURSELIMIT have been removed.
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25* Various cm_info methods have been deprecated in favour of their read-only properties (get_url(), get_content(), get_extra_classes(),
26 get_on_click(), get_custom_data(), get_after_link, get_after_edit_icons)
af64bc61 27* The ajaxenabled function has been deprecated and always returns true. All code should be fully functional in Javascript.
52dc1de7 28* count_login_failures() has been deprecated, use user_count_login_failures() instead. Refer MDL-42891 for details.
c4b0d6dc 29
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30YUI:
31 * The lightbox attribute for moodle-core-notification-dialogue has been
32 deprecated and replaced by the modal attribute. This was actually
33 changed in Moodle 2.2, but has only been marked as deprecated now. It
34 will be removed in Moodle 2.9.
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35 * When destroying any type of dialogue based on moodle-core-notification, the relevant content is also removed from
36 the DOM. Previously it was left orphaned.
5947ab33 37
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38JavaSript:
39 * The findChildNodes global function has been deprecated. Y.all should
40 be used instead.
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41 * The callback argument to confirm_action and M.util.show_confirm_dialog has been deprecated. If you need to write a
42 confirmation which includes a callback, please use moodle-core-notification-confirmation and attach callbacks to the
43 events provided.
a4582a51 44
9843e5ec 45* New locking api and admin settings to configure the system locking type.
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46* New "Time spent waiting for the database" performance metric displayed along with the
47 other MDL_PERF vars; the change affects both the error logs and the vars displayed in
48 the page footer.
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49* Changes in the tag API. The component and contextid are now saved when assigning tags to an item. Please see
50 tag/upgrade.txt for more information.
9843e5ec 51
9e19a0f0 52=== 2.6 ===
8e8891b7 53
cc8fecb5 54* Use new methods from core_component class instead of get_core_subsystems(), get_plugin_types(),
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55 get_plugin_list(), get_plugin_list_with_class(), get_plugin_directory(), normalize_component(),
56 get_component_directory() and get_plugin_list_with_file(). The names of the new methods are
57 exactly the same, the only differences are that core_component::get_plugin_types() now always returns
58 full paths and core_component::get_plugin_list() does not accept empty parameter any more.
d534708f 59* Use core_text::* instead of textlib:: and also core_collator::* instead of collatorlib::*.
af578aec 60* Use new function moodleform::mock_submit() to simulate form submission in unit tests (backported).
85b38061 61* New $CFG->localcachedir setting useful for cluster nodes. Admins have to update X-Sendfile aliases if used.
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62* MS SQL Server drivers are now using NVARCHAR(MAX) instead of NTEXT and VARBINARY(MAX) instead of IMAGE,
63 this change should be fully transparent and it should help significantly with add-on compatibility.
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64* The string manager classes were renamed. Note that they should not be modified or used directly,
65 always use get_string_manager() to get instance of the string manager.
aae18d2a 66* The ability to use an 'insecure' rc4encrypt/rc4decrypt key has been removed.
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67* Use $CFG->debugdeveloper instead of debugging('', DEBUG_DEVELOPER).
68* Use set_debugging(DEBUG_xxx) when changing debugging level for current request.
d55f05ef 69* Function moveto_module() does not modify $mod argument and instead now returns the new module visibility value.
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70* Use behat_selectors::get_allowed_text_selectors() and behat_selectors::get_allowed_selectors() instead of
71 behat_command::$allowedtextselectors and behat_command::$allowedselectors
ac2b2713 72* Subplugins are supported in admin tools and local plugins.
71ab7e51 73* file_packer/zip_packer API has been modified so that key functions support a new file_progress interface
74 to report progress during long operations. Related to this, zip_archive now supports an estimated_count()
75 function that returns an approximate number of entries in the zip faster than the count() function.
d872881f 76* Class cm_info no longer extends stdClass. All properties are read-only and calculated on first request only.
44ddd2a1 77* Class course_modinfo no longer extends stdClass. All properties are read-only.
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78* Database fields modinfo and sectioncache in table course are removed. Application cache core/coursemodinfo
79 is used instead. Course cache is still reset, rebuilt and retrieved using function rebuild_course_cache() and
80 get_fast_modinfo(). Purging all caches and every core upgrade purges course modinfo cache as well.
81 If function get_fast_modinfo() is called for multiple courses make sure to include field cacherev in course
82 object.
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83* Internal (noreply and support) user support has been added for sending/receiving message.
84 Use core_user::get_noreply_user() and core_user::get_support_user() to get noreply and support user's respectively.
85 Real users can be used as noreply/support users by setting $CFG->noreplyuserid and $CFG->supportuserid
137885b7 86* New function readfile_allow_large() in filelib.php for use when very large files may need sending to user.
e87214bd 87* Use core_plugin_manager::reset_caches() when changing visibility of plugins.
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88* Implement new method get_enabled_plugins() method in subplugin info classes.
89* Each plugin should include version information in version.php.
723a6e56 90* Module and block tables do not contain version column any more, use get_config('xx_yy', 'version') instead.
5fed8433 91* $USER->password field is intentionally unset so that session data does not contain password hashes.
38fc0130 92* Use core_shutdown_manager::register_function() instead of register_shutdown_function().
c858655d 93* New file packer for .tar.gz files; obtain by calling get_file_packer('application/x-gzip'). Intended initially
94 for use in backup/restore only, as there are limitations on supported filenames. Also new packer for
95 backups which supports both compression formats; get_file_packer('application/vnd.moodle.backup').
96* New optional parameter to stored_file::get_content_file_handle to open file handle with 'gzopen' instead
97 of 'fopen' to read gzip-compressed files if required.
6c679d15 98* update_internal_user_password() and setnew_password_and_mail() now trigger user_updated event.
b2858b91 99* Add thirdpartylibs.xml file to plugins that bundle any 3rd party libraries.
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100* New class introduced to help auto generate zIndex values for modal dialogues. Class "moodle-has-zindex"
101 should set on any element which uses a non-default zindex and needs to ensure it doesn't show above a
102 dialogue.
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103* $CFG->filelifetime is now used consistently for most file serving operations, the default was lowered
104 to 6 hours from 24 hours because etags and x-sendfile support should make file serving less expensive.
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105* Date format locale charset for windows server will come from calendar type and for gregorian it will use
106 lang file.
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107* The library to interact with Box.net (class boxclient) is only compatible with their APIv1 which
108 reaches its end of life on the 14th of Dec. You should migrate your scripts to make usage of the
109 new class boxnet_client(). Note that the method names and return values have changed.
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110* Settings pages are now possible for Calendar type plugins. Calendar type plugins that require a settings page to
111 work properly will need to set their requires version to a number that is equal to or grater than the 2.6.1 release version.
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112* The admin/tool/generator tool was overhauled to use testing data generators and the previous interface to create
113 test data was removed (it was not working correctly anyway). If you were using this tool you will probably need to
114 update your code.
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115
116DEPRECATIONS:
117Various previously deprecated functions have now been altered to throw DEBUG_DEVELOPER debugging notices
118and will be removed in a future release (target: 2.8), a summary follows:
119
120Accesslib:
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121 * get_context_instance() -> context_xxxx::instance()
122 * get_context_instance_by_id() -> context::instance_by_id($id)
123 * get_system_context() -> context_system::instance()
124 * context_moved() -> context::update_moved()
125 * preload_course_contexts() -> context_helper::preload_course()
126 * context_instance_preload() -> context_helper::preload_from_record()
127 * context_instance_preload_sql() -> context_helper::get_preload_record_columns_sql()
128 * get_contextlevel_name() -> context_helper::get_level_name()
129 * create_contexts() -> context_helper::create_instances()
130 * cleanup_contexts() -> context_helper::cleanup_instances()
131 * build_context_path() -> context_helper::build_all_paths()
132 * print_context_name() -> $context->get_context_name()
133 * mark_context_dirty() -> $context->mark_dirty()
134 * delete_context() -> $context->delete_content() or context_helper::delete_instance()
135 * get_context_url() -> $context->get_url()
136 * get_course_context() -> $context->get_course_context()
137 * get_parent_contexts() -> $context->get_parent_context_ids()
138 * get_parent_contextid() -> $context->get_parent_context()
139 * get_child_contexts() -> $context->get_child_contexts()
140 * rebuild_contexts() -> $context->reset_paths()
141 * get_user_courses_bycap() -> enrol_get_users_courses()
142 * get_courseid_from_context() -> $context->get_course_context(false)
143 * get_role_context_caps() -> (no replacement)
144 * load_temp_role() -> (no replacement)
145 * remove_temp_roles() -> (no replacement)
146 * get_related_contexts_string() -> $context->get_parent_context_ids(true)
147 * get_recent_enrolments() -> (no replacement)
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148
149Enrollment:
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150 * get_course_participants() -> get_enrolled_users()
151 * is_course_participant() -> is_enrolled()
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152
153Output:
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154 * current_theme() -> $PAGE->theme->name
155 * skip_main_destination() -> $OUTPUT->skip_link_target()
156 * print_container() -> $OUTPUT->container()
157 * print_container_start() -> $OUTPUT->container_start()
158 * print_container_end() -> $OUTPUT->container_end()
159 * print_continue() -> $OUTPUT->continue_button()
160 * print_header() -> $PAGE methods
161 * print_header_simple() -> $PAGE methods
162 * print_side_block() -> $OUTPUT->block()
163 * print_arrow() -> $OUTPUT->arrow()
164 * print_scale_menu_helpbutton() -> $OUTPUT->help_icon_scale($courseid, $scale)
165 * print_checkbox() -> html_writer::checkbox()
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166
167Navigation:
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168 * print_navigation() -> $OUTPUT->navbar()
169 * build_navigation() -> $PAGE->navbar methods
170 * navmenu() -> (no replacement)
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171 * settings_navigation::
172 get_course_modules() -> (no replacement)
05226d76 173
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174Files and repositories:
175 * stored_file::replace_content_with() -> stored_file::replace_file_with()
176 * stored_file::set_filesize() -> stored_file::replace_file_with()
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177 * stored_file::get_referencelifetime() -> (no replacement)
178 * repository::sync_external_file() -> see repository::sync_reference()
179 * repository::get_file_by_reference() -> repository::sync_reference()
180 * repository::
181 get_reference_file_lifetime() -> (no replacement)
182 * repository::sync_individual_file() -> (no replacement)
183 * repository::reset_caches() -> (no replacement)
2a68ee0e 184
05226d76 185Calendar:
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186 * add_event() -> calendar_event::create()
187 * update_event() -> calendar_event->update()
188 * delete_event() -> calendar_event->delete()
189 * hide_event() -> calendar_event->toggle_visibility(false)
190 * show_event() -> calendar_event->toggle_visibility(true)
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191
192Misc:
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193 * filter_text() -> format_text(), format_string()...
194 * httpsrequired() -> $PAGE->https_required()
195 * detect_munged_arguments() -> clean_param([...], PARAM_FILE)
196 * mygroupid() -> groups_get_all_groups()
197 * js_minify() -> core_minify::js_files()
198 * css_minify_css() -> core_minify::css_files()
64501eee 199 * course_modinfo::build_section_cache() -> (no replacement)
3bcf6b3c 200 * generate_email_supportuser() -> core_user::get_support_user()
c3d2fbf9 201
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202Sessions:
203 * session_get_instance()->xxx() -> \core\session\manager::xxx()
204 * session_kill_all() -> \core\session\manager::kill_all_sessions()
205 * session_touch() -> \core\session\manager::touch_session()
206 * session_kill() -> \core\session\manager::kill_session()
207 * session_kill_user() -> \core\session\manager::kill_user_sessions()
208 * session_gc() -> \core\session\manager::gc()
209 * session_set_user() -> \core\session\manager::set_user()
210 * session_is_loggedinas() -> \core\session\manager::is_loggedinas()
211 * session_get_realuser() -> \core\session\manager::get_realuser()
212 * session_loginas() -> \core\session\manager::loginas()
213
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214User-agent related functions:
215 * check_browser_operating_system() -> core_useragent::check_browser_operating_system()
216 * check_browser_version() -> core_useragent::check_browser_version()
217 * get_device_type() -> core_useragent::get_device_type()
218 * get_device_type_list() -> core_useragent::get_device_type_list()
219 * get_selected_theme_for_device_type() -> core_useragent::get_device_type_theme()
220 * get_device_cfg_var_name() -> core_useragent::get_device_type_cfg_var_name()
221 * set_user_device_type() -> core_useragent::set_user_device_type()
222 * get_user_device_type() -> core_useragent::get_user_device_type()
223 * get_browser_version_classes() -> core_useragent::get_browser_version_classes()
9e19a0f0 224
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225YUI:
226 * moodle-core-notification has been deprecated with a recommendation of
73b4c1da 227 using its subclasses instead. This is to allow for reduced page
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228 transport costs. Current subclasses include:
229 * dialogue
230 * alert
231 * confirm
232 * exception
233 * ajaxexception
234
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235Event triggering and event handlers:
236 * All existing events and event handlers should be replaced by new
237 event classes and matching new event observers.
238 * See http://docs.moodle.org/dev/Event_2 for more information.
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239 * The following events will be entirely removed, though they can still
240 be captured using handlers, but they should not be used any more.
241 * groups_members_removed -> \core\event\group_member_removed
242 * groups_groupings_groups_removed -> (no replacement)
243 * groups_groups_deleted -> \core\event\group_deleted
244 * groups_groupings_deleted -> \core\event\grouping_deleted
63deb5c3 245 * edit_module_post_actions() does not trigger events any more.
f0f0e1fe 246
a2602457 247=== 2.5.1 ===
248
249* New get_course() function for use when obtaining the course record from database. Will
250 reuse existing $COURSE or $SITE globals if possible to improve performance.
251
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252=== 2.5 ===
253
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254* The database drivers (moodle_database and subclasses) aren't using anymore the ::columns property
255 for caching database metadata. MUC (databasemeta) is used instead. Any custom DB driver should
256 apply for that change.
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257* The cron output has been changed to include time and memory usage (see cron_trace_time_and_memory()),
258 so any custom utility relying on the old output may require modification.
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259* Function get_max_file_sizes now returns an option for (for example) "Course limit (500MB)" or
260 "Site limit (200MB)" when appropriate with the option set to 0. This function no longer returns
261 an option for 0 bytes. Existing code that was replacing the 0 option in the return
262 from this function with a more sensible message, can now use the return from this function directly.
9a36be73 263* Functions responsible for output in course/lib.php are deprecated, the code is moved to
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264 appropriate renderers: print_section(), print_section_add_menus(), get_print_section_cm_text(),
265 make_editing_buttons()
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266 See functions' phpdocs in lib/deprecatedlib.php
267* Function get_print_section_cm_text() is deprecated, replaced with methods in cm_info
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268* zip_packer may create empty zip archives, there is a new option to ignore
269 problematic files when creating archive
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270* The function delete_course_module was deprecated and has been replaced with
271 course_delete_module. The reason for this was because the function delete_course_module
272 only partially deletes data, so wherever it was called extra code was needed to
273 perform the whole deletion process. The function course_delete_module now takes care
274 of the whole process.
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275* curl::setopt() does not accept constant values any more. As it never worked properly,
276 we decided to make the type check stricter. Now, the keys of the array pass must be a string
277 corresponding to the curl constant name.
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278* Function get_users_listing now return list of users except guest and deleted users. Previously
279 deleted users were excluded by get_users_listing. As guest user is not expected while browsing users,
280 and not included in get_user function, it will not be returned by get_users_listing.
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281* The add_* functions in course/dnduploadlib.php have been deprecated. Plugins should be using the
282 MODNAME_dndupload_register callback instead.
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283* The signature of the add() method of classes implementing the parentable_part_of_admin_tree
284 interface (such as admin_category) has been extended. The new parameter allows the caller
285 to prepend the new node before an existing sibling in the admin tree.
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286* condition_info:get_condition_user_fields($formatoptions) now accepts the optional
287 param $formatoptions, that will determine if the field names are processed by
288 format_string() with the passed options.
689096bc 289* remove all references to $CFG->gdversion, GD PHP extension is now required
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290* Formslib will now throw a developer warning if a PARAM_ type hasn't been set for elements which
291 need it. Please set PARAM_RAW explicitly if you do not want any cleaning.
4e0b6025 292* Functions responsible for managing and accessing course categories are moved to class coursecat
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293 in lib/coursecatlib.php, functions responsible for rendering courses and categories lists are
294 moved to course/renderer.php. The following global functions are deprecated: make_categories_list(),
6e1d1ee0 295 category_delete_move(), category_delete_full(), move_category(), course_category_hide(),
8db5dcb7 296 course_category_show(), get_course_category(), create_course_category(), get_all_subcategories(),
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297 get_child_categories(), get_categories(), print_my_moodle(), print_remote_course(),
298 print_remote_host(), print_whole_category_list(), print_category_info(), get_course_category_tree(),
299 print_courses(), print_course(), get_category_courses_array(), get_category_courses_array_recursively(),
300 get_courses_wmanagers()
301 See http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
0e2ca62e 302* $core_renderer->block_move_target() changed to support more verbose move-block-here descriptions.
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303* Additional (optional) param $onlyactive has been added to get_enrolled_users, count_enrolled_users
304 functions to get information for only active (excluding suspended enrolments) users. Included two
305 helper functions extract_suspended_users, get_suspended_userids to extract suspended user information.
e87214bd 306* The core_plugin_manager class now provides two new helper methods for getting information
d7d48b40 307 about known plugins: get_plugins_of_type() and get_subplugins_of_plugin().
e87214bd 308* The get_uninstall_url() method of all subclasses of \core\plugininfo\base class is now expected
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309 to always return moodle_url. Subclasses can use the new method is_uninstall_allowed()
310 to control the availability of the 'Uninstall' link at the Plugins overview page (previously
311 they would do it by get_uninstall_url() returning null). By default, URL to a new general plugin
312 uninstall tool is returned. Unless the plugin type needs extra steps that can't be handled by
313 plugininfo_xxx::uninstall() method or xmldb_xxx_uninstall() function, this default URL should
314 satisfy all plugin types.
9a36be73 315
4efcfaa3 316Database (DML) layer:
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317* $DB->sql_empty() is deprecated, you have to use sql parameters with empty values instead,
318 please note hardcoding of empty strings in SQL queries breaks execution in Oracle database.
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319* Indexes must not be defined on the same columns as keys, this is now reported as fatal problem.
320 Please note that internally we create indexes instead of foreign keys.
9a36be73 321
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322YUI changes:
323* M.util.help_icon has been deprecated. Code should be updated to use moodle-core-popuphelp
324 instead. To do so, remove any existing JS calls to M.util.help_icon from your PHP and ensure
325 that your help link is placed in a span which has the class 'helplink'.
326
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327=== 2.4 ===
328
329* Pagelib: Numerous deprecated functions were removed as classes page_base, page_course
330 and page_generic_activity.
704533fc 331* use $CFG->googlemapkey3 instead of removed $CFG->googlemapkey and migrate to Google Maps API V3
b874d5c6 332* Function settings_navigation::add_course_editing_links() is completely removed
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333* function global_navigation::format_display_course_content() is removed completely (the
334 functionality is moved to course format class)
335* in the function global_navigation::load_generic_course_sections() the argument $courseformat is
336 removed
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337* New component and itemid columns in groups_members table - this allows plugin to create protected
338 group memberships using 'xx_yy_allow_group_member_remove' callback and there is also a new restore
339 callback 'xx_yy_restore_group_member()'.
340* New general role assignment restore plugin callback 'xx_yy_restore_role_assignment()'.
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341* functions get_generic_section_name(), get_all_sections(), add_mod_to_section(), get_all_mods()
342 are deprecated. See their phpdocs in lib/deprecatedlib.php on how to replace them
ee362526 343
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344YUI changes:
345* moodle-enrol-notification has been renamed to moodle-core-notification
3542e01a 346* YUI2 code must now use 2in3, see http://yuilibrary.com/yui/docs/yui/yui-yui2.html
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347* M.util.init_select_autosubmit() and M.util.init_url_select() have been deprecated. Code using this should be updated
348 to use moodle-core-formautosubmit
d2a27ab0 349
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350Unit testing changes:
351* output debugging() is not sent to standard output any more,
352 use $this->assertDebuggingCalled(), $this->assertDebuggingNotCalled(),
353 $this->getDebuggingMessages() or $this->assertResetDebugging() instead.
354
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355=== 2.3 ===
356
357Database layer changes:
358* objects are not allowed in paramters of DML functions, use explicit casting to strings if necessary
359
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360Note:
361* DDL and DML methods which were deprecated in 2.0 have now been removed, they will no longer produce
362debug messages and will produce fatal errors
e618cdf3 363
796495fe 364API changes:
daefd6eb 365
796495fe 366* send_stored_file() has changed its interface
daefd6eb 367* deleted several resourcelib_embed_* functions from resourcelib.php
796495fe 368
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369=== 2.2 ===
370
371removed unused libraries:
372* odbc, base32, CodeSniffer, overlib, apd profiling, kses, Smarty, PEAR Console, swfobject, cssshover.htc, md5.js
373
374API changes:
375* new admin/tool plugin type
376* new context API - old API is still available
8e470797 377* deleted users do not have context any more
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378* removed global search
379
380
381=== 2.1 ===
382
383API changes:
384* basic suport for restore from 1.9
385* new mobile devices API
386* new questions API
387
388
389=== 2.0 ===
390
391API changes:
392* new DML API - http://docs.moodle.org/dev/DML_functions
393* new DDL API - http://docs.moodle.org/dev/DDL_functions
394* new file API - http://docs.moodle.org/dev/File_API
395* new $PAGE and $OUTPUT API
396* new navigation API
397* new theme API - http://docs.moodle.org/dev/Theme_changes_in_2.0
398* new javascript API - http://docs.moodle.org/dev/JavaScript_usage_guide
399* new portfolio API
400* new local plugin type
401* new translation support - http://lang.moodle.org
402* new web service API
403* new cohorts API
404* new messaging API
405* new rating API
406* new comment API
407* new sessions API
408* new enrolment API
409* new backup/restore API
410* new blocks API
411* new filters API
412* improved plugin support (aka Frankenstyle)
413* new registration and hub API
414* new course completion API
415* new plagiarism API
416* changed blog API
417* new text editor API
19526d91 418* new my moodle and profiles API