Miqra-Engineering/moodle-local_treestudyplan
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Fully implemented privacy API (still needs testing)

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PMKuipers 2024-12-28 15:16:16 +01:00
parent 2ce4a2d94b
commit 7b66bea57d
1 changed files with 143 additions and 80 deletions
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203
classes/privacy/provider.php
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@ -35,6 +35,7 @@ use core_privacy\local\request\transform;
use tool_dataprivacy\context_instance;
use context;
use local_treestudyplan\studyline;
use local_treestudyplan\studyplan;
/**
* Privacy provider
@ -297,19 +298,91 @@ class provider implements \core_privacy\local\metadata\provider,
public static function delete_data_for_all_users_in_context(context $context) {
global $DB;
// Find studyplans in context.
if ($context->contextlevel == CONTEXT_COURSECAT) { // The system context (probably) never be triggered like this, so limit code to Categories
$sql = "SELECT s.id FROM {local_treestudyplan} WHERE ( a.user_id = :userid AND s.context_id = :contextid)";
if ($context->contextlevel == CONTEXT_COURSECAT) { // The system context (probably) never be triggered like this, so limit code to Categories.
$sql = "SELECT s.id FROM {local_treestudyplan} WHERE (s.context_id = :contextid)";
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id]);
// Remove all associated users to the studyplan.
foreach ($planids as $planid) {
$DB->delete_records("local_treestudyplan_user", ["studyplan_id" => $planid]);
$DB->delete_records("local_treestudyplan_cohort", ["studyplan_id" => $planid]);
$DB->delete_records("local_treestudyplan_teachers", ["studyplan_id" => $planid]);
$DB->delete_records("local_treestudyplan_coach", ["studyplan_id" => $planid]);
}
// Remove all line enrolment associations.
$sql = "SELECT l.id FROM {local_treestudyplan_line} l
INNER JOIN {local_treestudyplan_page} p ON l.page_id = p.id
INNER JOIN {local_treestudyplan} s ON p.studyplan_id = s.id
WHERE (s.context_id = :contextid)";
$lineids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id]);
foreach ($lineids as $lineid) {
$DB->delete_records("local_treestudyplan_lineuser", ["line_id" => $lineid]);
}
}
}
/**
* Removes all user data for one user in one specific context
* @param context $context The context in which to remove the user
* @param int $userid The userid of the user to remove
*/
private static function delete_user_in_context(\context $context, int $userid) {
global $DB;
if ($context->contextlevel == CONTEXT_SYSTEM || $context->contextlevel == CONTEXT_COURSECAT) {
if ($context->contextlevel == CONTEXT_SYSTEM) {
// Also delete all invitations for this user.
$DB->delete_records("local_treestudyplan_invit", ["user_id" => $userid]);
// Retrieve all studyplans in system context.
$sql = "SELECT s.id FROM {local_treestudyplan} INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
WHERE (s.context_id <= 1)";
$planids = $DB->get_fieldset_sql($sql);
// Find all lineids in system context.
$sql = "SELECT l.id FROM {local_treestudyplan_line} l
INNER JOIN {local_treestudyplan_page} p ON l.page_id = p.id
INNER JOIN {local_treestudyplan} s ON p.studyplan_id = s.id
WHERE (s.context_id <= 1)";
$lineids = $DB->get_fieldset_sql($sql);
} else { // if ($context->contextlevel == CONTEXT_COURSECAT) {
// Retrieve all studyplans in this category.
$sql = "SELECT s.id FROM {local_treestudyplan} INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
WHERE (s.context_id = :contextid)";
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id]);
// Find all lineids in this context.
$sql = "SELECT l.id FROM {local_treestudyplan_line} l
INNER JOIN {local_treestudyplan_page} p ON l.page_id = p.id
INNER JOIN {local_treestudyplan} s ON p.studyplan_id = s.id
WHERE (s.context_id = :contextid)";
$lineids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id]);
}
foreach ($planids as $planid) {
// Remove all associated users to the studyplan.
$DB->delete_records("local_treestudyplan_user", ["studyplan_id" => $planid, "user_id" => $userid]);
$DB->delete_records("local_treestudyplan_cohort", ["studyplan_id" => $planid, "user_id" => $userid]);
$DB->delete_records("local_treestudyplan_teachers", ["studyplan_id" => $planid, "teacher_id" => $userid]);
$DB->delete_records("local_treestudyplan_coach", ["studyplan_id" => $planid, "user_id" => $userid]);
}
foreach ($lineids as $lineid) {
// Remove all line enrollments for this user.
$DB->delete_records("local_treestudyplan_lineuser", ["line_id" => $lineid, "user_id" => $userid]);
// Replace all enrolledby references with the admin user (2).
$records = $DB->get_records("local_treestudyplan_lineuser",["line_id" => $lineid, "enrolledby" => $userid]);
foreach ($records as $r) {
$r->enrolledby = 2; // Replace by admin user.
$DB->update_record("local_treestudyplan_lineuser",$r);
}
}
}
}
// TODO: REMOVE INVITATIONS FOR THE RELEVANT STUDYPLANS AS WELL
// TODO: REMOVE LINE ENROLLMENTS FOR THESE STUDYPLANS
// TODO: REMOVE COACHES FOR THESE STUDYPLANS
}
/**
* Delete all user data for the specified user, in the specified contexts.
@ -317,66 +390,85 @@ class provider implements \core_privacy\local\metadata\provider,
* @param approved_contextlist $contextlist The approved contexts and user information to delete information for.
*/
public static function delete_data_for_user(approved_contextlist $contextlist) {
global $DB;
$user = $contextlist->get_user();
foreach ($contextlist->get_contexts() as $context) {
if ($context->contextlevel == CONTEXT_SYSTEM) {
// Delete all associations for this user if the system context is included.
$DB->delete_records("local_treestudyplan_user", ["user_id" => $user->id]);
// Also delete all invitations for this user.
$DB->delete_records("local_treestudyplan_invit", ["user_id" => $user->id]);
} else if ($context->contextlevel == CONTEXT_COURSECAT) {
$sql = "SELECT s.id FROM {local_treestudyplan} INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
WHERE ( a.user_id = :userid AND s.context_id = :contextid)";
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id, "userid" => $user->id]);
foreach ($planids as $planid) {
$DB->delete_records("local_treestudyplan_user", ["studyplan_id" => $planid, "user_id" => $user->id]);
static::delete_user_in_context($context, $user->id);
}
}
}
// TODO: REMOVE LINE ENROLLMENTS
// TODO: Replace ENROLLEDBY by id 2 (ADMIN user)
// TODO: REMOVE COACHES
// TODO: REMOVE TEACHING CACHE
}
/**
* Get the list of users who have data within a context.
* @param userlist $userlist The userlist containing the list of users who have data in this context/plugin combination.
*/
public static function get_users_in_context(userlist $userlist) {
global $DB;
$context = $userlist->get_context();
if ($context instanceof \context_system) {
// Studyplan contexts are only System and Categories.
if ($context->contextlevel == CONTEXT_SYSTEM || $context->contextlevel == CONTEXT_COURSECAT) {
if ($context->contextlevel == CONTEXT_SYSTEM) {
// Add all invitations.
$sql = "SELECT i.user_id as userid
FROM {local_treestudyplan_invit} i;";
FROM {local_treestudyplan_invit} i";
$userlist->add_from_sql('userid', $sql, []);
// Also add "contextless studyplans, they are considered in system context".
// Add directly associated users.
$sql = "SELECT a.user_id as userid FROM {local_treestudyplan_user} a
INNER JOIN {local_treestudyplan} s ON a.studyplan_id = s.id
WHERE ( a.context_id is NULL or a.context_id < 1)
";
WHERE ( s.context_id is NULL or s.context_id <= 1)";
$userlist->add_from_sql('userid', $sql, []);
}
// Add coaching users.
$sql = "SELECT a.user_id as userid FROM {local_treestudyplan_coach} a
INNER JOIN {local_treestudyplan} s ON a.studyplan_id = s.id
WHERE ( s.context_id is NULL or s.context_id <= 1)";
$userlist->add_from_sql('userid', $sql, []);
// Add the links to all study plans in this context.
// Do not add teaching users, since this is simply a cache of data elsewhere in the system.
// Find all lineids in this context to process in next step
$sql = "SELECT l.id FROM {local_treestudyplan_line} l
INNER JOIN {local_treestudyplan_page} p ON l.page_id = p.id
INNER JOIN {local_treestudyplan} s ON p.studyplan_id = s.id
WHERE (sa.context_id is NULL or a.context_id <= 1)";
$lineids = $DB->get_fieldset_sql($sql, []);
} else {
// Add directly associated users.
$sql = "SELECT a.user_id as userid FROM {local_treestudyplan_user} a
INNER JOIN {local_treestudyplan} s ON a.studyplan_id = s.id
WHERE ( a.context_id = :contextid )
";
WHERE ( s.context_id = :contextid )";
$userlist->add_from_sql('userid', $sql, ["contextid" => $context->id]);
// TODO: FIX THIS WITH ALL OF THE ABOVE TODOS
// Add coaching users.
$sql = "SELECT a.user_id as userid FROM {local_treestudyplan_coach} a
INNER JOIN {local_treestudyplan} s ON a.studyplan_id = s.id
WHERE ( s.context_id = :contextid )";
$userlist->add_from_sql('userid', $sql, ["contextid" => $context->id]);
// Do not add teaching users, since this is simply a cache of data elsewhere in the system.
// Find all lineids in this context to process in next step.
$sql = "SELECT l.id FROM {local_treestudyplan_line} l
INNER JOIN {local_treestudyplan_page} p ON l.page_id = p.id
INNER JOIN {local_treestudyplan} s ON p.studyplan_id = s.id
WHERE (s.context_id = :contextid)";
$lineids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id]);
}
foreach ($lineids as $lineid) {
// List directly enrolled users.
$sql = "SELECT e.user_id as userid FROM {local_treestudyplan_lineuser} e
WHERE ( e.line_id = :lineid )";
$userlist->add_from_sql('userid',$sql, ["lineid" => $lineid]);
// And list enrolledby users.
$sql = "SELECT e.enrolledby as userid FROM {local_treestudyplan_lineuser} e
WHERE ( e.line_id = :lineid AND e.enrolledby IS NOT NULL)";
$userlist->add_from_sql('userid',$sql, ["lineid" => $lineid]);
}
}
}
/**
@ -384,41 +476,12 @@ class provider implements \core_privacy\local\metadata\provider,
* @param approved_userlist $userlist The approved context and user information to delete information for.
*/
public static function delete_data_for_users(approved_userlist $userlist) {
global $DB;
$context = $userlist->get_context();
$users = $userlist->get_userids();
list($userinsql, $userinparams) = $DB->get_in_or_equal($users, SQL_PARAMS_NAMED, 'user');
$planids = [];
if ($context->contextlevel == CONTEXT_SYSTEM) {
// Determine the relevant plan_ids for this context.
$sql = "SELECT s.id FROM {local_treestudyplan}
WHERE ( s.context_id IS NULL OR s.context_id == 0 OR s.context_id = :contextid)) ";
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id ]);
// If plan ids not empty, they will be processed later.
// Also delete all invitations for these users.
$sql = "user_id {$userinsql}";
$DB->delete_records_select("local_treestudyplan_invit", $sql, $userinparams);
} else if ($context->contextlevel == CONTEXT_COURSECAT) {
$sql = "SELECT s.id FROM {local_treestudyplan}
WHERE (s.context_id = :contextid)";
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id ]);
// If plan ids not empty, they will be processed later.
foreach ($users as $userid) {
static::delete_user_in_context($context,$userid);
}
// Now delete the studyplan associations if relevant.
if (count($planids) > 0 && count($users) > 0) {
list($planinsql, $planinputparams) = $DB->get_in_or_equal($planids, SQL_PARAMS_NAMED, 'plan');
$params = $userinparams + $planinputparams;
$sql = "user_id {$userinsql} and studyplan_id {$planinsql}";
$DB->delete_records_select('local_treestudyplan_user', $sql, $params);
}
// TODO: FIX THIS WITH ALL OF THE ABOVE TODOS
}
}