Issue #121 Update contextid for userlist customfield records.

Author: TomoTsuyuki

classes/task/update_customfield_context.php

@@ -36,6 +36,9 @@ class update_customfield_context extends adhoc_task {
     public function execute() {
         global $DB;
 
+        // Record {customfield_data}.instanceid is from {cms}.id.
+        // Record {customfield_data}.contextid is from contextid of {course_modules}, which is linked to {cms}.
+
         // Collect records which have wrong contextid in the customfield data.
         $sql = "SELECT mcd.id mcdid, mcd.contextid mcdcontextid, mc.id mcid
                   FROM {customfield_data} mcd
@@ -45,7 +48,7 @@ public function execute() {
                       SELECT id FROM {modules} WHERE name = 'cms'
                   )
                   JOIN {context} mc ON mc.instanceid = mcm.id AND contextlevel = " . CONTEXT_MODULE . "
-                 WHERE mcc.component = 'mod_cms' AND mcd.contextid != mc.id";
+                 WHERE mcc.component = 'mod_cms' AND mcc.area = 'cmsfield' AND mcd.contextid != mc.id";
         $records = $DB->get_records_sql($sql);
         // Update records with correct contextid.
         foreach ($records as $record) {

db/upgrade.php

@@ -344,14 +344,14 @@ function xmldb_cms_upgrade($oldversion) {
     }
 
     if ($oldversion < 2023120101) {
-        // Add adhoc task to update contextid in customfield records.
+        // Add adhoc task to update contextid in customfield records for 'cmsfield' type.
         manager::queue_adhoc_task(new update_customfield_context());
         upgrade_mod_savepoint(true, 2023120101, 'cms');
     }
 
     if ($oldversion < 2023120102) {
         $dbman = $DB->get_manager();
-        // Conditionally launch add field valuetrust.
+        // Update valuetrust if exists for mod_cms (both 'cmsfield' and 'cmsuserlist').
         if ($dbman->field_exists('customfield_data', 'valuetrust')) {
             $sql = "SELECT mcd.id mcdid
                       FROM {customfield_data} mcd
@@ -369,5 +369,49 @@ function xmldb_cms_upgrade($oldversion) {
         upgrade_mod_savepoint(true, 2023120102, 'cms');
     }
 
+    if ($oldversion < 2023120103) {
+        // Update contextid in customfield records for 'cmsuserlist' type.
+        // {customfield_data}.instanceid" is from one of id from userlistinstanceids which is JSON encoded in {cms}.customdata.
+        // "userlistinstanceids" is a unique id for the customfield_data.
+        // New ID is from userlistmaxinstanceid which is JSON encoded in the {cms_types}.customdata" and add 1 to use.
+        $sql = "SELECT mc.id, mc.customdata, mcx.id contextid
+                  FROM {cms} mc
+                  JOIN {course_modules} mcm ON mc.id = mcm.instance AND mcm.module = (
+                           SELECT id FROM {modules} WHERE name = 'cms'
+                       )
+                  JOIN {context} mcx ON mcx.instanceid = mcm.id AND mcx.contextlevel = " . CONTEXT_MODULE . "
+                 WHERE mc.customdata LIKE '%userlistinstanceids%'";
+        $cmsrecords = $DB->get_records_sql($sql);
+
+        // Load userlist from customfield_data and set to array.
+        $userlist = [];
+        foreach ($cmsrecords as $cmsrecord) {
+            $customdata = json_decode($cmsrecord->customdata);
+            foreach ($customdata->userlistinstanceids as $instanceid) {
+                $userlist[$instanceid] = [
+                    'id' => $cmsrecord->id,
+                    'contextid' => $cmsrecord->contextid,
+                ];
+            }
+        }
+
+        // Check cmsuserlist records and set correct contextid if it's different one.
+        $sql = "SELECT mcd.id, mcd.instanceid, mcd.contextid
+                  FROM {customfield_data} mcd
+                  JOIN {customfield_field} mcf ON mcf.id = mcd.fieldid
+                  JOIN {customfield_category} mcc ON mcc.id = mcf.categoryid
+                 WHERE mcc.component = 'mod_cms' AND mcc.area = 'cmsuserlist'";
+        $cmsuserlistdata = $DB->get_records_sql($sql);
+        foreach ($cmsuserlistdata as $cmsuserlist) {
+            if (!empty($userlist[$cmsuserlist->instanceid])) {
+                if ($userlist[$cmsuserlist->instanceid]['contextid'] != $cmsuserlist->contextid) {
+                    $DB->set_field('customfield_data', 'contextid', $userlist[$cmsuserlist->instanceid]['contextid'],
+                        ['id' => $cmsuserlist->id]);
+                }
+            }
+        }
+        upgrade_mod_savepoint(true, 2023120103, 'cms');
+    }
+
     return true;
 }

version.php

@@ -25,7 +25,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version = 2023120102;
+$plugin->version = 2023120103;
 $plugin->requires = 2020061500; // Moodle 3.9.0 and above.
 $plugin->supported = [39, 401]; // Moodle 3.9 to 4.1 inclusive.
 $plugin->component = 'mod_cms';