Files
file	access.php
	Plugin capabilities.

file	activity.php
	Search area for mod_chat activities.

file	activity_base.php
	Activity base class.

file	backup_chat_activity_task.class.php
	Defines backup_chat_activity_task class.

file	backup_chat_stepslib.php
	@subpackage backup-moodle2

file	chat_message_exporter.php
	Class for exporting a chat message.

file	cognitive_depth.php
	Cognitive depth indicator - chat.

file	course_module_instance_list_viewed.php
	The mod_chat instance list viewed event.

file	course_module_viewed.php
	The mod_chat course module viewed event.

file	cron_task.php
	A scheduled task for chat cron.

file	events.php
	Event observers definition.

file	external.php
	Chat external API.

file	lib.php
	Provides support for the conversion of moodle1 backup to the moodle2 format Based off of a template @ http://docs.moodle.org/dev/Backup_1.9_conversion_for_developers.

file	lib.php
	Library of functions and constants for module chat.

file	locallib.php
	Library of functions for chat outside of the core api.

file	log.php
	Definition of log events.

file	message_sent.php
	The mod_chat message sent event.

file	provider.php
	Data provider.

file	renderer.php
	Chat module rendering methods.

file	restore_chat_activity_task.class.php
	@subpackage backup-moodle2

file	restore_chat_stepslib.php
	@subpackage backup-moodle2

file	services.php
	Chat external functions and service definitions.

file	sessions_viewed.php
	The mod_chat sessions viewed event.

file	social_breadth.php
	Social breadth indicator - chat.

file	tasks.php
	Definition of chat scheduled tasks.

file	upgrade.php
	Upgrade code for the chat activity.

file	version.php
	Version information.

Namespaces
namespace	mod_chat\analytics\indicator


namespace	mod_chat\event


namespace	mod_chat\external


namespace	mod_chat\privacy


namespace	mod_chat\search


namespace	mod_chat\task

Classes
class	backup_chat_activity_structure_step
	Define all the backup steps that will be used by the backup_chat_activity_task. More...

class	backup_chat_activity_task
	Provides the steps to perform one complete backup of the Chat instance. More...

class	chat_portfolio_caller

class	event_message
	A chat event such a user entering or leaving a chat activity. More...

class	mod_chat\analytics\indicator\activity_base
	Activity base class. More...

class	mod_chat\analytics\indicator\cognitive_depth
	Cognitive depth indicator - chat. More...

class	mod_chat\analytics\indicator\social_breadth
	Social breadth indicator - chat. More...

class	mod_chat\event\course_module_instance_list_viewed
	The mod_chat instance list viewed event class. More...

class	mod_chat\event\course_module_viewed
	The mod_chat course module viewed event class. More...

class	mod_chat\event\message_sent
	The mod_chat message sent event class. More...

class	mod_chat\event\sessions_viewed

class	mod_chat\external\chat_message_exporter
	Class for exporting a chat message. More...

class	mod_chat\privacy\provider
	Data provider class. More...

class	mod_chat\search\activity
	Search area for mod_chat activities. More...

class	mod_chat\task\cron_task
	The main schedule task for the chat module. More...

class	mod_chat_external

class	mod_chat_renderer
	Chat module renderer class. More...

class	moodle1_mod_chat_handler
	Chat conversion handler. More...

class	restore_chat_activity_structure_step
	Define all the restore steps that will be used by the restore_chat_activity_task. More...

class	restore_chat_activity_task
	chat restore task that provides all the settings and steps to perform one complete restore of the activity More...

class	user_message
	A chat message from a user. More...

Functions
object	chat_add_instance ($chat)
	Given an object containing all the necessary data, (defined by the form in mod_form.php) this function will create a new instance and return the id number of the new instance. More...

object	chat_delete_instance ($id)
	Given an ID of an instance of this module, this function will permanently delete the instance and any data that depends on it. More...

object	chat_delete_old_users ()
	Delete the old and in the way. More...

	chat_extend_navigation ($navigation, $course, $module, $cm)

	chat_extend_settings_navigation (settings_navigation $settings, navigation_node $chatnode)
	Adds module specific settings to the settings block. More...

object	chat_format_message ($message, $courseid, $currentuser, $chatlastrow=null)
	Given a message object this function formats it appropriately into text and html then returns the formatted data. More...

object	chat_format_message_manually ($message, $courseid, $sender, $currentuser, $chatlastrow=null)
	@global object More...

object	chat_format_message_theme ($message, $chatuser, $currentuser, $groupingid, $theme='bubble')

object	chat_format_userlist ($users, $course)
	$DB @global object $CFG @global object $COURSE @global object $OUTPUT More...

object	chat_get_latest_message ($chatid, $groupid=0)

	chat_get_latest_messages ($chatuser, $chatlasttime)
	Return a list of the latest messages in the given chat session. More...

	chat_get_post_actions ()
	List the actions that correspond to a post of this module. More...

	chat_get_session_messages ($chatid, $group=false, $start=0, $end=0, $sort='')
	Return the messages of the given chat session. More...

	chat_get_sessions ($messages, $showall=false)
	Given a set of messages for a chat, return the completed chat sessions (including optionally not completed ones). More...

object	chat_get_users ($chatid, $groupid=0, $groupingid=0)

	chat_get_view_actions ()
	List the actions that correspond to a view of this module. More...

object	chat_login_user ($chatid, $version, $groupid, $course)
	login if not already logged in More...

	chat_page_type_list ($pagetype, $parentcontext, $currentcontext)
	Return a list of page types. More...

	chat_prepare_update_events ($chat, $cm=null)
	Updates both the normal and completion calendar events for chat. More...

	chat_print_error ($level, $msg)
	Print json format error. More...

	chat_print_overview ()

object	chat_print_recent_activity ($course, $viewfullnames, $timestart)
	Given a course and a date, prints a summary of all chat rooms past and present This function is called from block_recent_activity. More...

object	chat_refresh_events ($courseid=0, $instance=null, $cm=null)
	This standard function will check all instances of this module and make sure there are up-to-date events created for each of them. More...

	chat_reset_course_form_defaults ($course)
	Course reset form defaults. More...

	chat_reset_course_form_definition (&$mform)
	Implementation of the function for printing the form elements that control whether the course reset functionality affects the chat. More...

object	chat_reset_userdata ($data)
	Actual implementation of the reset course functionality, delete all the chat messages for course $data->courseid. More...

	chat_send_chatmessage ($chatuser, $messagetext, $issystem=false, $cm=null)
	Send a message on the chat. More...

	chat_supports ($feature)

object	chat_update_chat_times ($chatid=0)
	Updates chat records so that the next chat time is correct. More...

object	chat_update_instance ($chat)
	Given an object containing all the necessary data, (defined by the form in mod_form.php) this function will update an existing instance with new data. More...

	chat_user_logout (\core\event\user_loggedout $event)
	user logout event handler More...

	chat_view ($chat, $course, $cm, $context)
	Mark the activity completed (if required) and trigger the course_module_viewed event. More...

	mod_chat_core_calendar_provide_event_action (calendar_event $event, core_calendar\action_factory $factory, int $userid=0)
	This function receives a calendar event and returns the action associated with it, or null if there is none. More...

	padding ($n)

	xmldb_chat_upgrade ($oldversion)

Variables
	$capabilities

global	$CHAT_DUMMY_DATA = padding(200)

global	$CHAT_HTMLHEAD

	$CHAT_HTMLHEAD_JS =

	$CHAT_HTMLHEAD_MSGINPUT

	$CHAT_HTMLHEAD_MSGINPUT_JS =

global	$CHAT_HTMLHEAD_OUT

	$functions

	$logs

	$observers

	$plugin = 2020060900

	$tasks

const	CHAT_EVENT_TYPE_CHATTIME 'chattime'

const	CHAT_SESSION_GAP 300

$plugin	component = 'mod_chat'

$plugin	version = 2020061500

Detailed Description

Function Documentation

◆ chat_add_instance()

object chat_add_instance ( $chat )

Given an object containing all the necessary data, (defined by the form in mod_form.php) this function will create a new instance and return the id number of the new instance.

Parameters

object $chat

Return values

int

◆ chat_delete_instance()

object chat_delete_instance ( $id )

Given an ID of an instance of this module, this function will permanently delete the instance and any data that depends on it.

Parameters

int $id

Return values

bool

◆ chat_delete_old_users()

object chat_delete_old_users ( )

Delete the old and in the way.

@global object

◆ chat_extend_settings_navigation()

chat_extend_settings_navigation	(	settings_navigation	$settings,
		navigation_node	$chatnode
	)

Adds module specific settings to the settings block.

Parameters

settings_navigation	$settings	The settings navigation object
navigation_node	$chatnode	The node to add module settings to

◆ chat_format_message()

object chat_format_message	(	$message,
		$courseid,
		$currentuser,
		$chatlastrow = `null`
	)

Given a message object this function formats it appropriately into text and html then returns the formatted data.

Parameters

object	$message
int	$courseid
object	$currentuser
string	$chatlastrow

Return values

bool|string Returns HTML or false

◆ chat_format_message_manually()

object chat_format_message_manually	(	$message,
		$courseid,
		$sender,
		$currentuser,
		$chatlastrow = `null`
	)

@global object

Parameters

object	$message
int	$courseid
object	$sender
object	$currentuser
string	$chatlastrow

Return values

bool|string Returns HTML or false

◆ chat_format_message_theme()

object chat_format_message_theme	(	$message,
		$chatuser,
		$currentuser,
		$groupingid,
		$theme = `'bubble'`
	)

Parameters

object	$message	message to be displayed.
mixed	$chatuser	user chat data
object	$currentuser	current user for whom the message should be displayed.
int	$groupingid	course module grouping id
string	$theme	name of the chat theme.

Return values

bool|string Returns HTML or false

◆ chat_format_userlist()

object chat_format_userlist	(	$users,
		$course
	)

$DB @global object $CFG @global object $COURSE @global object $OUTPUT

Parameters

object	$users
object	$course

Return values

array return formatted user list

◆ chat_get_latest_message()

object chat_get_latest_message	(	$chatid,
		$groupid = `0`
	)

Parameters

int	$chatid
int	$groupid

Return values

array

◆ chat_get_latest_messages()

chat_get_latest_messages	(	$chatuser,
		$chatlasttime
	)

Return a list of the latest messages in the given chat session.

Parameters

stdClass	$chatuser	chat user session data
int	$chatlasttime	last time messages were retrieved

Return values

array list of messages

Since: Moodle 3.0

◆ chat_get_post_actions()

chat_get_post_actions ( )

List the actions that correspond to a post of this module.

This is used by the participation report.

Note: This is not used by new logging system. Event with crud = ('c' || 'u' || 'd') and edulevel = LEVEL_PARTICIPATING will be considered as post action.

Return values

array

◆ chat_get_session_messages()

chat_get_session_messages	(	$chatid,
		$group = `false`,
		$start = `0`,
		$end = `0`,
		$sort = `''`
	)

Return the messages of the given chat session.

Parameters

int	$chatid	the chat id
mixed	$group	false if groups not used, int if groups used, 0 means all groups
int	$start	the session start timestamp (0 to not filter by time)
int	$end	the session end timestamp (0 to not filter by time)
string	$sort	an order to sort the results in (optional, a valid SQL ORDER BY parameter)

Return values

array session messages

Since: Moodle 3.5

◆ chat_get_sessions()

chat_get_sessions	(	$messages,
		$showall = `false`
	)

Given a set of messages for a chat, return the completed chat sessions (including optionally not completed ones).

Parameters

array	$messages	list of messages from a chat. It is assumed that these are sorted by timestamp in DESCENDING order.
bool	$showall	whether to include incomplete sessions or not

Return values

array the list of sessions

Since: Moodle 3.5

◆ chat_get_users()

object chat_get_users	(	$chatid,
		$groupid = `0`,
		$groupingid = `0`
	)

Parameters

int	$chatid
int	$groupid
int	$groupingid

Return values

array

◆ chat_get_view_actions()

chat_get_view_actions ( )

List the actions that correspond to a view of this module.

This is used by the participation report.

Note: This is not used by new logging system. Event with crud = 'r' and edulevel = LEVEL_PARTICIPATING will be considered as view action.

Return values

array

◆ chat_login_user()

object chat_login_user	(	$chatid,
		$version,
		$groupid,
		$course
	)

login if not already logged in

@global object

Parameters

int	$chatid
string	$version
int	$groupid
object	$course

Return values

bool|int Returns the chat users sid or false

◆ chat_page_type_list()

chat_page_type_list	(	$pagetype,
		$parentcontext,
		$currentcontext
	)

Return a list of page types.

Parameters

string	$pagetype	current page type
stdClass	$parentcontext	Block's parent context
stdClass	$currentcontext	Current context of block

◆ chat_prepare_update_events()

chat_prepare_update_events	(	$chat,
		$cm = `null`
	)

Updates both the normal and completion calendar events for chat.

Parameters

stdClass	$chat	The chat object (from the DB)
stdClass	$cm	The course module object.

◆ chat_print_error()

chat_print_error	(	$level,
		$msg
	)

Print json format error.

Parameters

string	$level
string	$msg

◆ chat_print_overview()

chat_print_overview ( )

Deprecated:: since Moodle 3.3, when the block_course_overview block was removed.

◆ chat_print_recent_activity()

object chat_print_recent_activity	(	$course,
		$viewfullnames,
		$timestart
	)

Given a course and a date, prints a summary of all chat rooms past and present This function is called from block_recent_activity.

@global object @global object

Parameters

object	$course
bool	$viewfullnames
int \| string	$timestart	Timestamp

Return values

bool

◆ chat_refresh_events()

object chat_refresh_events	(	$courseid = `0`,
		$instance = `null`,
		$cm = `null`
	)

This standard function will check all instances of this module and make sure there are up-to-date events created for each of them.

If courseid = 0, then every chat event in the site is checked, else only chat events belonging to the course specified are checked. This function is used, in its new format, by restore_refresh_events()

Parameters

int	$courseid
int \| stdClass	$instance	Chat module instance or ID.
int \| stdClass	$cm	Course module object or ID.

Return values

bool

◆ chat_reset_course_form_defaults()

chat_reset_course_form_defaults ( $course )

Course reset form defaults.

Parameters

object $course

Return values

array

◆ chat_reset_course_form_definition()

chat_reset_course_form_definition ( & $mform )

Implementation of the function for printing the form elements that control whether the course reset functionality affects the chat.

Parameters

object $mform form passed by reference

◆ chat_reset_userdata()

object chat_reset_userdata ( $data )

Actual implementation of the reset course functionality, delete all the chat messages for course $data->courseid.

@global object

Parameters

object $data the data submitted from the reset course.

Return values

array status array

◆ chat_send_chatmessage()

chat_send_chatmessage	(	$chatuser,
		$messagetext,
		$issystem = `false`,
		$cm = `null`
	)

Send a message on the chat.

Parameters

object	$chatuser	The chat user record.
string	$messagetext	The message to be sent.
bool	$issystem	False for non-system messages, true for system messages.
object	$cm	The course module object, pass it to save a database query when we trigger the event.

Return values

int	The message ID.

Since: Moodle 2.6

◆ chat_supports()

chat_supports ( $feature )

Parameters

string $feature FEATURE_xx constant for requested feature

Return values

mixed True if module supports feature, null if doesn't know

◆ chat_update_chat_times()

object chat_update_chat_times ( $chatid = 0 )

Updates chat records so that the next chat time is correct.

Parameters

int $chatid

Return values

void

◆ chat_update_instance()

object chat_update_instance ( $chat )

Given an object containing all the necessary data, (defined by the form in mod_form.php) this function will update an existing instance with new data.

Parameters

object $chat

Return values

bool

◆ chat_user_logout()

chat_user_logout ( \core\event\user_loggedout $event )

user logout event handler

Parameters

core::event::user_loggedout $event The event.

Return values

void

◆ chat_view()

chat_view	(	$chat,
		$course,
		$cm,
		$context
	)

Mark the activity completed (if required) and trigger the course_module_viewed event.

Parameters

stdClass	$chat	chat object
stdClass	$course	course object
stdClass	$cm	course module object
stdClass	$context	context object

Since: Moodle 3.0

◆ mod_chat_core_calendar_provide_event_action()

mod_chat_core_calendar_provide_event_action	(	calendar_event	$event,
		core_calendar\action_factory	$factory,
		int	$userid = `0`
	)

This function receives a calendar event and returns the action associated with it, or null if there is none.

This is used by block_myoverview in order to display the event appropriately. If null is returned then the event is not displayed on the block.

Parameters

calendar_event	$event
core_calendar::action_factory	$factory
int	$userid	User id to use for all capability checks, etc. Set to 0 for current user (default).

Return values

core_calendar::local::event::entities::action_interface|null

◆ padding()

padding ( $n )

Parameters

int $n

Return values

string

Variable Documentation

◆ $CHAT_HTMLHEAD

$CHAT_HTMLHEAD

Initial value:

= "<!DOCTYPE HTML PUBLIC "-
 
global $CHAT_HTMLHEAD_JS

◆ $CHAT_HTMLHEAD_MSGINPUT

$CHAT_HTMLHEAD_MSGINPUT

Initial value:

= "<!DOCTYPE HTML PUBLIC "-
 
global $CHAT_HTMLHEAD_MSGINPUT_JS

◆ $CHAT_HTMLHEAD_OUT

$CHAT_HTMLHEAD_OUT

Initial value:

= "<!DOCTYPE HTML PUBLIC "-
 
global $CHAT_HTMLHEAD_MSGINPUT

◆ $logs

$logs

Initial value:

= array(
    array('module' => 'chat', 'action' => 'view', 'mtable' => 'chat', 'field' => 'name'),
    array('module' => 'chat', 'action' => 'add', 'mtable' => 'chat', 'field' => 'name'),
    array('module' => 'chat', 'action' => 'update', 'mtable' => 'chat', 'field' => 'name'),
    array('module' => 'chat', 'action' => 'report', 'mtable' => 'chat', 'field' => 'name'),
    array('module' => 'chat', 'action' => 'talk', 'mtable' => 'chat', 'field' => 'name'),
)

◆ $observers

$observers

Initial value:

= array(
 
    
    array(
        'eventname' => '\core\event\user_loggedout',
        'callback' => 'chat_user_logout',
        'includefile' => '/mod/chat/lib.php'
    )
)

◆ $tasks

$tasks

Initial value:

= array(
    array(
        'classname' => '\mod_chat\task\cron_task',
        'blocking' => 0,
        'minute' => '*/5',
        'hour' => '*',
        'day' => '*',
        'month' => '*',
        'dayofweek' => '*'
    )
)

Files

Namespaces

Classes

Functions

Variables

Detailed Description

Function Documentation

◆ chat_add_instance()

◆ chat_delete_instance()

◆ chat_delete_old_users()

◆ chat_extend_settings_navigation()

◆ chat_format_message()

◆ chat_format_message_manually()

◆ chat_format_message_theme()

◆ chat_format_userlist()

◆ chat_get_latest_message()

◆ chat_get_latest_messages()

◆ chat_get_post_actions()

◆ chat_get_session_messages()

◆ chat_get_sessions()

◆ chat_get_users()

◆ chat_get_view_actions()

◆ chat_login_user()

◆ chat_page_type_list()

◆ chat_prepare_update_events()

◆ chat_print_error()

◆ chat_print_overview()

◆ chat_print_recent_activity()

◆ chat_refresh_events()

◆ chat_reset_course_form_defaults()

◆ chat_reset_course_form_definition()

◆ chat_reset_userdata()

◆ chat_send_chatmessage()

◆ chat_supports()

◆ chat_update_chat_times()

◆ chat_update_instance()

◆ chat_user_logout()

◆ chat_view()

◆ mod_chat_core_calendar_provide_event_action()

◆ padding()

Variable Documentation

◆ $CHAT_HTMLHEAD

◆ $CHAT_HTMLHEAD_MSGINPUT

◆ $CHAT_HTMLHEAD_OUT

◆ $logs

◆ $observers

◆ $tasks