Merge branch 'MDL-35930' of git://github.com/rwijaya/moodle
[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
9e19a0f0 4=== 2.6 ===
8e8891b7 5
cc8fecb5 6* Use new methods from core_component class instead of get_core_subsystems(), get_plugin_types(),
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7 get_plugin_list(), get_plugin_list_with_class(), get_plugin_directory(), normalize_component(),
8 get_component_directory() and get_plugin_list_with_file(). The names of the new methods are
9 exactly the same, the only differences are that core_component::get_plugin_types() now always returns
10 full paths and core_component::get_plugin_list() does not accept empty parameter any more.
d534708f 11* Use core_text::* instead of textlib:: and also core_collator::* instead of collatorlib::*.
af578aec 12* Use new function moodleform::mock_submit() to simulate form submission in unit tests (backported).
85b38061 13* New $CFG->localcachedir setting useful for cluster nodes. Admins have to update X-Sendfile aliases if used.
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14* MS SQL Server drivers are now using NVARCHAR(MAX) instead of NTEXT and VARBINARY(MAX) instead of IMAGE,
15 this change should be fully transparent and it should help significantly with add-on compatibility.
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16* The string manager classes were renamed. Note that they should not be modified or used directly,
17 always use get_string_manager() to get instance of the string manager.
aae18d2a 18* The ability to use an 'insecure' rc4encrypt/rc4decrypt key has been removed.
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19* Use $CFG->debugdeveloper instead of debugging('', DEBUG_DEVELOPER).
20* Use set_debugging(DEBUG_xxx) when changing debugging level for current request.
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21
22DEPRECATIONS:
23Various previously deprecated functions have now been altered to throw DEBUG_DEVELOPER debugging notices
24and will be removed in a future release (target: 2.8), a summary follows:
25
26Accesslib:
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27 * get_context_instance() -> context_xxxx::instance()
28 * get_context_instance_by_id() -> context::instance_by_id($id)
29 * get_system_context() -> context_system::instance()
30 * context_moved() -> context::update_moved()
31 * preload_course_contexts() -> context_helper::preload_course()
32 * context_instance_preload() -> context_helper::preload_from_record()
33 * context_instance_preload_sql()-> context_helper::get_preload_record_columns_sql()
34 * get_contextlevel_name() -> context_helper::get_level_name()
35 * create_contexts() -> context_helper::create_instances()
36 * cleanup_contexts() -> context_helper::cleanup_instances()
37 * build_context_path() -> context_helper::build_all_paths()
38 * print_context_name() -> $context->get_context_name()
39 * mark_context_dirty() -> $context->mark_dirty()
40 * delete_context() -> $context->delete_content() or context_helper::delete_instance()
41 * get_context_url() -> $context->get_url()
42 * get_course_context() -> $context->get_course_context()
43 * get_parent_contexts() -> $context->get_parent_context_ids()
44 * get_parent_contextid() -> $context->get_parent_context()
45 * get_child_contexts() -> $context->get_child_contexts()
46 * rebuild_contexts() -> $context->reset_paths()
47 * get_user_courses_bycap() -> enrol_get_users_courses()
48 * get_courseid_from_context() -> $context->get_course_context(false)
49 * get_role_context_caps() -> (no replacement)
50 * load_temp_role() -> (no replacement)
51 * remove_temp_roles() -> (no replacement)
52 * get_related_contexts_string() -> $context->get_parent_context_ids(true)
53 * get_recent_enrolments() -> (no replacement)
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54
55Enrollment:
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56 * get_course_participants() -> get_enrolled_users()
57 * is_course_participant() -> is_enrolled()
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58
59Output:
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60 * current_theme() -> $PAGE->theme->name
61 * skip_main_destination() -> $OUTPUT->skip_link_target()
62 * print_container() -> $OUTPUT->container()
63 * print_container_start() -> $OUTPUT->container_start()
64 * print_container_end() -> $OUTPUT->container_end()
65 * print_continue() -> $OUTPUT->continue_button()
66 * print_header() -> $PAGE methods
67 * print_header_simple() -> $PAGE methods
68 * print_side_block() -> $OUTPUT->block()
69 * print_arrow() -> $OUTPUT->arrow()
70 * print_scale_menu_helpbutton() -> $OUTPUT->help_icon_scale($courseid, $scale)
71 * print_checkbox() -> html_writer::checkbox()
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72
73Navigation:
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74 * print_navigation() -> $OUTPUT->navbar()
75 * build_navigation() -> $PAGE->navbar methods
76 * navmenu() -> (no replacement)
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77
78Calendar:
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79 * add_event() -> calendar_event::create()
80 * update_event() -> calendar_event->update()
81 * delete_event() -> calendar_event->delete()
82 * hide_event() -> calendar_event->toggle_visibility(false)
83 * show_event() -> calendar_event->toggle_visibility(true)
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84
85Misc:
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86 * filter_text() -> format_text(), format_string()...
87 * httpsrequired() -> $PAGE->https_required()
88 * detect_munged_arguments() -> clean_param([...], PARAM_FILE)
89 * mygroupid() -> groups_get_all_groups()
90 * js_minify() -> core_minify::js_files()
91 * css_minify_css() -> core_minify::css_files()
9e19a0f0 92
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93YUI:
94 * moodle-core-notification has been deprecated with a recommendation of
73b4c1da 95 using its subclasses instead. This is to allow for reduced page
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96 transport costs. Current subclasses include:
97 * dialogue
98 * alert
99 * confirm
100 * exception
101 * ajaxexception
102
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103Event triggering and event handlers:
104 * All existing events and event handlers should be replaced by new
105 event classes and matching new event observers.
106 * See http://docs.moodle.org/dev/Event_2 for more information.
107
a2602457 108=== 2.5.1 ===
109
110* New get_course() function for use when obtaining the course record from database. Will
111 reuse existing $COURSE or $SITE globals if possible to improve performance.
112
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113=== 2.5 ===
114
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115* The database drivers (moodle_database and subclasses) aren't using anymore the ::columns property
116 for caching database metadata. MUC (databasemeta) is used instead. Any custom DB driver should
117 apply for that change.
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118* The cron output has been changed to include time and memory usage (see cron_trace_time_and_memory()),
119 so any custom utility relying on the old output may require modification.
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120* Function get_max_file_sizes now returns an option for (for example) "Course limit (500MB)" or
121 "Site limit (200MB)" when appropriate with the option set to 0. This function no longer returns
122 an option for 0 bytes. Existing code that was replacing the 0 option in the return
123 from this function with a more sensible message, can now use the return from this function directly.
9a36be73 124* Functions responsible for output in course/lib.php are deprecated, the code is moved to
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125 appropriate renderers: print_section(), print_section_add_menus(), get_print_section_cm_text(),
126 make_editing_buttons()
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127 See functions' phpdocs in lib/deprecatedlib.php
128* Function get_print_section_cm_text() is deprecated, replaced with methods in cm_info
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129* zip_packer may create empty zip archives, there is a new option to ignore
130 problematic files when creating archive
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131* The function delete_course_module was deprecated and has been replaced with
132 course_delete_module. The reason for this was because the function delete_course_module
133 only partially deletes data, so wherever it was called extra code was needed to
134 perform the whole deletion process. The function course_delete_module now takes care
135 of the whole process.
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136* curl::setopt() does not accept constant values any more. As it never worked properly,
137 we decided to make the type check stricter. Now, the keys of the array pass must be a string
138 corresponding to the curl constant name.
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139* Function get_users_listing now return list of users except guest and deleted users. Previously
140 deleted users were excluded by get_users_listing. As guest user is not expected while browsing users,
141 and not included in get_user function, it will not be returned by get_users_listing.
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142* The add_* functions in course/dnduploadlib.php have been deprecated. Plugins should be using the
143 MODNAME_dndupload_register callback instead.
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144* The signature of the add() method of classes implementing the parentable_part_of_admin_tree
145 interface (such as admin_category) has been extended. The new parameter allows the caller
146 to prepend the new node before an existing sibling in the admin tree.
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147* condition_info:get_condition_user_fields($formatoptions) now accepts the optional
148 param $formatoptions, that will determine if the field names are processed by
149 format_string() with the passed options.
689096bc 150* remove all references to $CFG->gdversion, GD PHP extension is now required
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151* Formslib will now throw a developer warning if a PARAM_ type hasn't been set for elements which
152 need it. Please set PARAM_RAW explicitly if you do not want any cleaning.
4e0b6025 153* Functions responsible for managing and accessing course categories are moved to class coursecat
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154 in lib/coursecatlib.php, functions responsible for rendering courses and categories lists are
155 moved to course/renderer.php. The following global functions are deprecated: make_categories_list(),
6e1d1ee0 156 category_delete_move(), category_delete_full(), move_category(), course_category_hide(),
8db5dcb7 157 course_category_show(), get_course_category(), create_course_category(), get_all_subcategories(),
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158 get_child_categories(), get_categories(), print_my_moodle(), print_remote_course(),
159 print_remote_host(), print_whole_category_list(), print_category_info(), get_course_category_tree(),
160 print_courses(), print_course(), get_category_courses_array(), get_category_courses_array_recursively(),
161 get_courses_wmanagers()
162 See http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
0e2ca62e 163* $core_renderer->block_move_target() changed to support more verbose move-block-here descriptions.
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164* Additional (optional) param $onlyactive has been added to get_enrolled_users, count_enrolled_users
165 functions to get information for only active (excluding suspended enrolments) users. Included two
166 helper functions extract_suspended_users, get_suspended_userids to extract suspended user information.
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167* The plugin_manager class now provides two new helper methods for getting information
168 about known plugins: get_plugins_of_type() and get_subplugins_of_plugin().
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169* The get_uninstall_url() method of all subclasses of plugininfo_base class is now expected
170 to always return moodle_url. Subclasses can use the new method is_uninstall_allowed()
171 to control the availability of the 'Uninstall' link at the Plugins overview page (previously
172 they would do it by get_uninstall_url() returning null). By default, URL to a new general plugin
173 uninstall tool is returned. Unless the plugin type needs extra steps that can't be handled by
174 plugininfo_xxx::uninstall() method or xmldb_xxx_uninstall() function, this default URL should
175 satisfy all plugin types.
9a36be73 176
4efcfaa3 177Database (DML) layer:
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178* $DB->sql_empty() is deprecated, you have to use sql parameters with empty values instead,
179 please note hardcoding of empty strings in SQL queries breaks execution in Oracle database.
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180* Indexes must not be defined on the same columns as keys, this is now reported as fatal problem.
181 Please note that internally we create indexes instead of foreign keys.
9a36be73 182
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183YUI changes:
184* M.util.help_icon has been deprecated. Code should be updated to use moodle-core-popuphelp
185 instead. To do so, remove any existing JS calls to M.util.help_icon from your PHP and ensure
186 that your help link is placed in a span which has the class 'helplink'.
187
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188=== 2.4 ===
189
190* Pagelib: Numerous deprecated functions were removed as classes page_base, page_course
191 and page_generic_activity.
704533fc 192* use $CFG->googlemapkey3 instead of removed $CFG->googlemapkey and migrate to Google Maps API V3
b874d5c6 193* Function settings_navigation::add_course_editing_links() is completely removed
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194* function global_navigation::format_display_course_content() is removed completely (the
195 functionality is moved to course format class)
196* in the function global_navigation::load_generic_course_sections() the argument $courseformat is
197 removed
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198* New component and itemid columns in groups_members table - this allows plugin to create protected
199 group memberships using 'xx_yy_allow_group_member_remove' callback and there is also a new restore
200 callback 'xx_yy_restore_group_member()'.
201* New general role assignment restore plugin callback 'xx_yy_restore_role_assignment()'.
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202* functions get_generic_section_name(), get_all_sections(), add_mod_to_section(), get_all_mods()
203 are deprecated. See their phpdocs in lib/deprecatedlib.php on how to replace them
ee362526 204
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205YUI changes:
206* moodle-enrol-notification has been renamed to moodle-core-notification
3542e01a 207* YUI2 code must now use 2in3, see http://yuilibrary.com/yui/docs/yui/yui-yui2.html
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208* M.util.init_select_autosubmit() and M.util.init_url_select() have been deprecated. Code using this should be updated
209 to use moodle-core-formautosubmit
d2a27ab0 210
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211Unit testing changes:
212* output debugging() is not sent to standard output any more,
213 use $this->assertDebuggingCalled(), $this->assertDebuggingNotCalled(),
214 $this->getDebuggingMessages() or $this->assertResetDebugging() instead.
215
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216=== 2.3 ===
217
218Database layer changes:
219* objects are not allowed in paramters of DML functions, use explicit casting to strings if necessary
220
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221Note:
222* DDL and DML methods which were deprecated in 2.0 have now been removed, they will no longer produce
223debug messages and will produce fatal errors
e618cdf3 224
796495fe 225API changes:
daefd6eb 226
796495fe 227* send_stored_file() has changed its interface
daefd6eb 228* deleted several resourcelib_embed_* functions from resourcelib.php
796495fe 229
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230=== 2.2 ===
231
232removed unused libraries:
233* odbc, base32, CodeSniffer, overlib, apd profiling, kses, Smarty, PEAR Console, swfobject, cssshover.htc, md5.js
234
235API changes:
236* new admin/tool plugin type
237* new context API - old API is still available
8e470797 238* deleted users do not have context any more
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239* removed global search
240
241
242=== 2.1 ===
243
244API changes:
245* basic suport for restore from 1.9
246* new mobile devices API
247* new questions API
248
249
250=== 2.0 ===
251
252API changes:
253* new DML API - http://docs.moodle.org/dev/DML_functions
254* new DDL API - http://docs.moodle.org/dev/DDL_functions
255* new file API - http://docs.moodle.org/dev/File_API
256* new $PAGE and $OUTPUT API
257* new navigation API
258* new theme API - http://docs.moodle.org/dev/Theme_changes_in_2.0
259* new javascript API - http://docs.moodle.org/dev/JavaScript_usage_guide
260* new portfolio API
261* new local plugin type
262* new translation support - http://lang.moodle.org
263* new web service API
264* new cohorts API
265* new messaging API
266* new rating API
267* new comment API
268* new sessions API
269* new enrolment API
270* new backup/restore API
271* new blocks API
272* new filters API
273* improved plugin support (aka Frankenstyle)
274* new registration and hub API
275* new course completion API
276* new plagiarism API
277* changed blog API
278* new text editor API
19526d91 279* new my moodle and profiles API