ltiservice_gradebookservices\local\service\gradebookservices Class Reference

A service implementing LTI Gradebook Services. More...

Inheritance diagram for ltiservice_gradebookservices\local\service\gradebookservices:

Public Member Functions
	__construct ()
	Class constructor.
	add_standalone_lineitem (string $courseid, string $label, float $maximumscore, string $baseurl, ?int $ltilinkid, ?string $resourceid, ?string $tag, int $typeid, int $toolproxyid=null)
	Adds a decoupled (standalone) line item.
	check_tool ($typeid, $body=null, $scopes=null)
	Check that the request has been properly signed and is permitted.
	check_tool_proxy ($toolproxyguid, $body=null)
	Check that the request has been properly signed.
	check_type ($typeid, $courseid, $body=null)
	Check that the request has been properly signed.
	get_component_id ()
	Get the service compoent ID.
	get_configuration_options (&$mform)
	Adds form elements for gradebook sync add/edit page.
	get_configuration_parameter_names ()
	Return an array with the names of the parameters that the service will be saving in the configuration.
	get_id ()
	Get the service ID.
	get_jwt_claim_mappings ()
	Return an array of key/claim mapping allowing LTI 1.1 custom parameters to be transformed to LTI 1.3 claims.
	get_launch_parameters ($messagetype, $courseid, $user, $typeid, $modlti=null)
	Return an array of key/values to add to the launch parameters.
	get_lineitem ($courseid, $itemid, $typeid)
	Fetch a lineitem instance.
	get_lineitems ($courseid, $resourceid, $ltilinkid, $tag, $limitfrom, $limitnum, $typeid)
	Fetch the lineitem instances.
	get_name ()
	Get the service name.
	get_permitted_scopes ()
	Get the scope(s) permitted for this service.
	get_resources ()
	Get the resources for this service.
	get_scopes ()
	Get the scopes defined by this service.
	get_tool_proxy ()
	Get the tool proxy object.
	get_type ()
	Get the type object.
	get_typeconfig ()
	Get the type config array.
	instance_added (object $lti)
	Called when a new LTI Instance is added.
	instance_deleted (int $id)
	Called when a new LTI Instance is deleted.
	instance_updated (object $lti)
	Called when a new LTI Instance is updated.
	is_allowed_in_context ($typeid, $courseid)
	Checks if there is a site tool or a course tool for this site.
	is_unsigned ()
	Get whether the service requests need to be signed.
	is_used_in_context ($typeid, $courseid)
	Default implementation will check for the existence of at least one mod_lti entry for that tool and context.
	override_endpoint (string $messagetype, string $targetlinkuri, ?string $customstr, int $courseid, ?object $lti=null)
	For submission review, if there is a dedicated URL, use it as the target link.
	parse_value ($value)
	Parse a string for custom substitution parameter variables supported by this service's resources.
	save_grade_item ($gradeitem, $score, $userid)
	Saves a score received from the LTI tool.
	set_instance_form_values (object $defaultvalues)
	Set the form data when displaying the LTI Instance form.
stdClass	set_tool_proxy ($toolproxy)
	Set the tool proxy object.
stdClass	set_type ($type)
	Set the LTI type object.
array	set_typeconfig ($typeconfig)
	Set the LTI type config object.

Static Public Member Functions
static	check_lti_1x_id ($linkid, $course, $typeid)
	Check if an LTI id is valid when we are in a LTI 1.x case.
static	check_lti_id ($linkid, $course, $toolproxy)
	Check if an LTI id is valid.
static	delete_orphans_ltiservice_gradebookservices_rows ()
	Deletes orphaned rows from the 'ltiservice_gradebookservices' table.
static	find_ltiservice_gradebookservice_for_lineitem ($lineitemid)
	Find the right element in the ltiservice_gradebookservice table for a lineitem.
static	find_ltiservice_gradebookservice_for_lti ($instanceid)
	Find the right element in the ltiservice_gradebookservice table for an lti instance.
static	get_service_path ()
	Get the path for service requests.
static	is_user_gradable_in_course ($courseid, $userid)
	Check if a user can be graded in a course.
static	item_for_json ($item, $endpoint, $typeid)
	Get the json object representation of the grade item.
static	result_for_json ($grade, $endpoint, $typeid)
	Get the object matching the JSON representation of the result.
static	save_score ($gradeitem, $score, $userid)
	Set a grade item.
static	update_coupled_gradebookservices (object $ltiinstance, ?string $resourceid, ?string $tag, ?\moodle_url $subreviewurl, ?string $subreviewparams)
	Updates the tag, resourceid and submission review values for a grade item coupled to an lti link instance.
static	validate_iso8601_date ($date)
	Validates specific ISO 8601 format of the timestamps.

Public Attributes
const	GRADEBOOKSERVICES_FULL = 2
	Full access to Gradebook services.
const	GRADEBOOKSERVICES_READ = 1
	Read-only access to Gradebook services.
const	LTI_VERSION2P0 = 'LTI-2p0'
	Label representing an LTI 2 message type.
const	SCOPE_GRADEBOOKSERVICES_LINEITEM = 'https://purl.imsglobal.org/spec/lti-ags/scope/lineitem'
	Scope for full access to Lineitem service.
const	SCOPE_GRADEBOOKSERVICES_LINEITEM_READ = 'https://purl.imsglobal.org/spec/lti-ags/scope/lineitem.readonly'
	Scope for full access to Lineitem service.
const	SCOPE_GRADEBOOKSERVICES_RESULT_READ = 'https://purl.imsglobal.org/spec/lti-ags/scope/result.readonly'
	Scope for access to Result service.
const	SCOPE_GRADEBOOKSERVICES_SCORE = 'https://purl.imsglobal.org/spec/lti-ags/scope/score'
	Scope for access to Score service.
const	SERVICE_ENABLED = 1
	Service enabled.

Protected Attributes
string	$id
	ID for the service.
string	$name
	Human readable name for the service.
array	$resources
	Instances of the resources associated with this service.
boolean	$unsigned
	true if requests for this service do not need to be signed.

Detailed Description

A service implementing LTI Gradebook Services.

Copyright

2017 Cengage Learning http://www.cengage.com

License

http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Constructor & Destructor Documentation

__construct()

ltiservice_gradebookservices\local\service\gradebookservices::__construct

(

)

Class constructor.

Reimplemented from mod_lti\local\ltiservice\service_base.

Member Function Documentation

add_standalone_lineitem()

ltiservice_gradebookservices\local\service\gradebookservices::add_standalone_lineitem	(	string	$courseid,
		string	$label,
		float	$maximumscore,
		string	$baseurl,
		?int	$ltilinkid,
		?string	$resourceid,
		?string	$tag,
		int	$typeid,
		int	$toolproxyid = null )

Adds a decoupled (standalone) line item.

Decoupled line items are not directly attached to an lti instance activity. They are recorded in the gradebook as manual activities and the gradebookservices is used to associate that manual column with the tool in addition to storing the LTI related metadata (resource id, tag).

Parameters

string	$courseid	ID of course
string	$label	label of lineitem
float	$maximumscore	maximum score of lineitem
string	$baseurl
int | null	$ltilinkid	id of lti instance this line item is associated with
string | null	$resourceid	resource id of lineitem
string | null	$tag	tag of lineitem
int	$typeid	lti type to which this line item is associated with
int | null	$toolproxyid	lti2 tool proxy to which this lineitem is associated to

Return values

int	id of the created gradeitem

check_lti_1x_id()

static ltiservice_gradebookservices\local\service\gradebookservices::check_lti_1x_id ( $linkid, $course, $typeid )

static

Check if an LTI id is valid when we are in a LTI 1.x case.

Parameters

string	$linkid	The lti id
string	$course	The course
string	$typeid	The lti type id

Return values

boolean

check_lti_id()

static ltiservice_gradebookservices\local\service\gradebookservices::check_lti_id ( $linkid, $course, $toolproxy )

static

Check if an LTI id is valid.

Parameters

string	$linkid	The lti id
string	$course	The course
string	$toolproxy	The tool proxy id

Return values

boolean

check_tool()

mod_lti\local\ltiservice\service_base::check_tool ( $typeid, $body = null, $scopes = null )

inherited

Check that the request has been properly signed and is permitted.

Parameters

string	$typeid	LTI type ID
string	$body	Request body (null if none)
string[]	$scopes	Array of required scope(s) for incoming request

Return values

boolean

check_tool_proxy()

mod_lti\local\ltiservice\service_base::check_tool_proxy ( $toolproxyguid, $body = null )

inherited

Check that the request has been properly signed.

Parameters

string	$toolproxyguid	Tool Proxy GUID
string	$body	Request body (null if none)

Return values

boolean

Deprecated

since Moodle 3.7 MDL-62599 - please do not use this function any more.

See also

service_base\check_tool()

check_type()

mod_lti\local\ltiservice\service_base::check_type ( $typeid, $courseid, $body = null )

inherited

Check that the request has been properly signed.

Parameters

int	$typeid	The tool id
int	$courseid	The course we are at
string	$body	Request body (null if none)

Return values

bool

Deprecated

since Moodle 3.7 MDL-62599 - please do not use this function any more.

See also

service_base\check_tool()

delete_orphans_ltiservice_gradebookservices_rows()

static ltiservice_gradebookservices\local\service\gradebookservices::delete_orphans_ltiservice_gradebookservices_rows ( )

static

Deletes orphaned rows from the 'ltiservice_gradebookservices' table.

Sometimes, if a gradebook entry is deleted and it was a lineitem the row in the table ltiservice_gradebookservices can become an orphan This method will clean these orphans. It will happens based on a task because it is not urgent and we don't want to slow the service

find_ltiservice_gradebookservice_for_lineitem()

static ltiservice_gradebookservices\local\service\gradebookservices::find_ltiservice_gradebookservice_for_lineitem ( $lineitemid )

static

Find the right element in the ltiservice_gradebookservice table for a lineitem.

Parameters

string

$lineitemid

The lineitem (gradeitem) id

Return values

object

gradebookservice if it exists

find_ltiservice_gradebookservice_for_lti()

static ltiservice_gradebookservices\local\service\gradebookservices::find_ltiservice_gradebookservice_for_lti ( $instanceid )

static

Find the right element in the ltiservice_gradebookservice table for an lti instance.

Parameters

string

$instanceid

The LTI module instance id

Return values

object

gradebookservice for this line item

get_component_id()

mod_lti\local\ltiservice\service_base::get_component_id ( )

inherited

Get the service compoent ID.

Return values

string

get_configuration_options()

ltiservice_gradebookservices\local\service\gradebookservices::get_configuration_options

(

&

$mform

)

Adds form elements for gradebook sync add/edit page.

Parameters

MoodleQuickForm

$mform

Moodle quickform object definition

Reimplemented from mod_lti\local\ltiservice\service_base.

get_configuration_parameter_names()

mod_lti\local\ltiservice\service_base::get_configuration_parameter_names ( )

inherited

Return an array with the names of the parameters that the service will be saving in the configuration.

Return values

array

Names list of the parameters that the service will be saving in the configuration

Deprecated

since Moodle 3.7 - please do not use this function any more.

get_id()

mod_lti\local\ltiservice\service_base::get_id ( )

inherited

Get the service ID.

Return values

string

get_jwt_claim_mappings()

ltiservice_gradebookservices\local\service\gradebookservices::get_jwt_claim_mappings

(

)

Return an array of key/claim mapping allowing LTI 1.1 custom parameters to be transformed to LTI 1.3 claims.

Return values

array

Key/value pairs of params to claim mapping.

Reimplemented from mod_lti\local\ltiservice\service_base.

get_launch_parameters()

ltiservice_gradebookservices\local\service\gradebookservices::get_launch_parameters	(		$messagetype,
			$courseid,
			$user,
			$typeid,
			$modlti = null )

Return an array of key/values to add to the launch parameters.

Parameters

string	$messagetype	'basic-lti-launch-request' or 'ContentItemSelectionRequest'.
string	$courseid	the course id.
object	$user	The user id.
string	$typeid	The tool lti type id.
string	$modlti	The id of the lti activity.

The type is passed to check the configuration and not return parameters for services not used.

Return values

array

of key/value pairs to add as launch parameters.

Reimplemented from mod_lti\local\ltiservice\service_base.

get_lineitem()

ltiservice_gradebookservices\local\service\gradebookservices::get_lineitem	(		$courseid,
			$itemid,
			$typeid )

Fetch a lineitem instance.

Returns the lineitem instance if found, otherwise false.

Parameters

string	$courseid	ID of course
string	$itemid	ID of lineitem
string	$typeid

Return values

ltiservice_gradebookservices\local\resources\lineitem|bool

get_lineitems()

ltiservice_gradebookservices\local\service\gradebookservices::get_lineitems	(		$courseid,
			$resourceid,
			$ltilinkid,
			$tag,
			$limitfrom,
			$limitnum,
			$typeid )

Fetch the lineitem instances.

Parameters

string	$courseid	ID of course
string	$resourceid	Resource identifier used for filtering, may be null
string	$ltilinkid	Resource Link identifier used for filtering, may be null
string	$tag
int	$limitfrom	Offset for the first line item to include in a paged set
int	$limitnum	Maximum number of line items to include in the paged set
string	$typeid

Return values

array

Exceptions

Exception

get_name()

mod_lti\local\ltiservice\service_base::get_name ( )

inherited

Get the service name.

Return values

string

get_permitted_scopes()

ltiservice_gradebookservices\local\service\gradebookservices::get_permitted_scopes

(

)

Get the scope(s) permitted for this service.

Return values

array

Reimplemented from mod_lti\local\ltiservice\service_base.

get_resources()

ltiservice_gradebookservices\local\service\gradebookservices::get_resources

(

)

Get the resources for this service.

Return values

resource_base[]

Reimplemented from mod_lti\local\ltiservice\service_base.

get_scopes()

ltiservice_gradebookservices\local\service\gradebookservices::get_scopes

(

)

Get the scopes defined by this service.

Return values

array

Reimplemented from mod_lti\local\ltiservice\service_base.

get_service_path()

static mod_lti\local\ltiservice\service_base::get_service_path ( )

staticinherited

Get the path for service requests.

Return values

string

get_tool_proxy()

mod_lti\local\ltiservice\service_base::get_tool_proxy ( )

inherited

Get the tool proxy object.

Return values

stdClass

get_type()

mod_lti\local\ltiservice\service_base::get_type ( )

inherited

Get the type object.

Return values

stdClass

get_typeconfig()

mod_lti\local\ltiservice\service_base::get_typeconfig ( )

inherited

Get the type config array.

Return values

array|null

instance_added()

ltiservice_gradebookservices\local\service\gradebookservices::instance_added

(

object

$lti

)

Called when a new LTI Instance is added.

Parameters

object

$lti

LTI Instance.

Reimplemented from mod_lti\local\ltiservice\service_base.

instance_deleted()

mod_lti\local\ltiservice\service_base::instance_deleted ( int $id )

inherited

Called when a new LTI Instance is deleted.

Parameters

int

$id

LTI Instance.

instance_updated()

ltiservice_gradebookservices\local\service\gradebookservices::instance_updated

(

object

$lti

)

Called when a new LTI Instance is updated.

Parameters

object

$lti

LTI Instance.

Reimplemented from mod_lti\local\ltiservice\service_base.

is_allowed_in_context()

mod_lti\local\ltiservice\service_base::is_allowed_in_context ( $typeid, $courseid )

inherited

Checks if there is a site tool or a course tool for this site.

Parameters

int	$typeid	The tool lti type id.
int	$courseid	The course id.

Return values

bool	returns True if tool is allowed in context, false otherwise.

is_unsigned()

mod_lti\local\ltiservice\service_base::is_unsigned ( )

inherited

Get whether the service requests need to be signed.

Return values

boolean

is_used_in_context()

mod_lti\local\ltiservice\service_base::is_used_in_context ( $typeid, $courseid )

inherited

Default implementation will check for the existence of at least one mod_lti entry for that tool and context.

It may be overridden if other inferences can be done.

Ideally a Site Tool should be explicitly engaged with a course, the check on the presence of a link is a proxy to infer a Site Tool engagement until an explicit Site Tool - Course relationship exists.

Parameters

int	$typeid	The tool lti type id.
int	$courseid	The course id.

Return values

bool	returns True if tool is used in context, false otherwise.

is_user_gradable_in_course()

static ltiservice_gradebookservices\local\service\gradebookservices::is_user_gradable_in_course ( $courseid, $userid )

static

Check if a user can be graded in a course.

Parameters

int	$courseid	The course
int	$userid	The user

Return values

bool

item_for_json()

static ltiservice_gradebookservices\local\service\gradebookservices::item_for_json ( $item, $endpoint, $typeid )

static

Get the json object representation of the grade item.

Parameters

object	$item	Grade Item record
string	$endpoint	Endpoint for lineitems container request
string	$typeid

Return values

object

override_endpoint()

ltiservice_gradebookservices\local\service\gradebookservices::override_endpoint	(	string	$messagetype,
		string	$targetlinkuri,
		?string	$customstr,
		int	$courseid,
		?object	$lti = null )

For submission review, if there is a dedicated URL, use it as the target link.

Parameters

string	$messagetype	message type for this launch
string	$targetlinkuri	current target link uri
string | null	$customstr	concatenated list of custom parameters
int	$courseid
null | object	$lti	LTI Instance.

Return values

array

containing the target link URL and the custom params string to use.

Reimplemented from mod_lti\local\ltiservice\service_base.

parse_value()

mod_lti\local\ltiservice\service_base::parse_value ( $value )

inherited

Parse a string for custom substitution parameter variables supported by this service's resources.

Parameters

string

$value

Value to be parsed

Return values

string

result_for_json()

static ltiservice_gradebookservices\local\service\gradebookservices::result_for_json ( $grade, $endpoint, $typeid )

static

Get the object matching the JSON representation of the result.

Parameters

object	$grade	Grade record
string	$endpoint	Endpoint for lineitem
int	$typeid	The id of the type to include in the result url.

Return values

object

save_grade_item()

ltiservice_gradebookservices\local\service\gradebookservices::save_grade_item	(		$gradeitem,
			$score,
			$userid )

Saves a score received from the LTI tool.

Parameters

object	$gradeitem	Grade Item record
object	$score	Result object
int	$userid	User ID

Exceptions

Exception

save_score()

static ltiservice_gradebookservices\local\service\gradebookservices::save_score ( $gradeitem, $score, $userid )

static

Set a grade item.

Parameters

object	$gradeitem	Grade Item record
object	$score	Result object
int	$userid	User ID

Exceptions

Exception

Deprecated

since Moodle 3.7 MDL-62599 - please do not use this function any more.

See also

gradebookservices\save_grade_item($gradeitem, $score, $userid)

set_instance_form_values()

ltiservice_gradebookservices\local\service\gradebookservices::set_instance_form_values

(

object

$defaultvalues

)

Set the form data when displaying the LTI Instance form.

Parameters

object

$defaultvalues

Default form values.

Reimplemented from mod_lti\local\ltiservice\service_base.

set_tool_proxy()

stdClass mod_lti\local\ltiservice\service_base::set_tool_proxy ( $toolproxy )

inherited

Set the tool proxy object.

Parameters

object

$toolproxy

The tool proxy for this service request

set_type()

stdClass mod_lti\local\ltiservice\service_base::set_type ( $type )

inherited

Set the LTI type object.

Parameters

object

$type

The LTI type for this service request

set_typeconfig()

array mod_lti\local\ltiservice\service_base::set_typeconfig ( $typeconfig )

inherited

Set the LTI type config object.

Parameters

array

$typeconfig

The LTI type config for this service request

update_coupled_gradebookservices()

static ltiservice_gradebookservices\local\service\gradebookservices::update_coupled_gradebookservices ( object $ltiinstance, ?string $resourceid, ?string $tag, ?\moodle_url $subreviewurl, ?string $subreviewparams )

static

Updates the tag, resourceid and submission review values for a grade item coupled to an lti link instance.

Parameters

object	$ltiinstance	The lti instance to which the grade item is coupled to
string | null	$resourceid	The resourceid to apply to the lineitem. If empty string which will be stored as null.
string | null	$tag	The tag to apply to the lineitem. If empty string which will be stored as null.
moodle_url | null	$subreviewurl	The submission review target link URL
string | null	$subreviewparams	The submission review custom parameters.

validate_iso8601_date()

static ltiservice_gradebookservices\local\service\gradebookservices::validate_iso8601_date ( $date )

static

Validates specific ISO 8601 format of the timestamps.

Parameters

string

$date

The timestamp to check.

Return values

boolean

true or false if the date matches the format.

---

The documentation for this class was generated from the following file:

• mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php