MDL-69049 tool_dataprivacy: Add possibly missing comment format columns

The earlier CONTRIB plugin versions of the tool (<33.2.0, <34.2.0) were
missing the following columns in the data requests table:
* commentsformat
* dpocommentformat
And the upgrade scripts for the merged tool failed in
Moodle 3.3.8+/3.3.0+ failed to add these columns.
So a site which uses the CONTRIB plugin and eventually upgrading to 3.9
will encounter an error during upgrade because of the missing
dpocommentformat column.

admin/tool/dataprivacy/db/upgrade.php

@@ -322,5 +322,28 @@ function xmldb_tool_dataprivacy_upgrade($oldversion) {
     // Automatically generated Moodle v3.8.0 release upgrade line.
     // Put any upgrade step following this.
 
+    if ($oldversion < 2019111801) {
+
+        // Define field commentsformat to be added to tool_dataprivacy_request.
+        $table = new xmldb_table('tool_dataprivacy_request');
+        $field = new xmldb_field('commentsformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'comments');
+
+        // Conditionally launch add field commentsformat.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Define field dpocommentformat to be added to tool_dataprivacy_request.
+        $field = new xmldb_field('dpocommentformat', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'dpocomment');
+
+        // Conditionally launch add field dpocommentformat.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Dataprivacy savepoint reached.
+        upgrade_plugin_savepoint(true, 2019111801, 'tool', 'dataprivacy');
+    }
+
     return true;
 }

admin/tool/dataprivacy/version.php

@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die;
 
-$plugin->version   = 2019111800;
+$plugin->version   = 2019111801;
 $plugin->requires  = 2019111200;        // Moodle 3.5dev (Build 2018031600) and upwards.
 $plugin->component = 'tool_dataprivacy';