portfolio MDL-22264 add leap2a option for the mahara plugin

portfolio/mahara/lang/en/portfolio_mahara.php

@@ -23,6 +23,7 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+$string['enableleap2a'] = 'Enable Leap2a Portfolio support (requires Mahara 1.3)';
 $string['err_invalidhost'] = 'This plugin is misconfigured to point to an invalid (or deleted) mnet host.  This plugin relies on Moodle Networking peers with SSO IDP published, SSO_SP subscribed, and portfolio subscribed <b>and</b> published.';
 $string['err_networkingoff'] = 'Moodle Networking is off entirely. Please enable it before trying to configure this pugin.  Any instances of this plugin have been set to not visible until this is fixed - you will need to set them to visible again manully.  They cannot be used until this happens';
 $string['err_nomnetauth'] = 'The mnet authentication plugin is disabled, but is required for this service';

portfolio/mahara/lib.php

@@ -63,11 +63,14 @@ class portfolio_plugin_mahara extends portfolio_plugin_pull_base {
     }
 
     public static function get_allowed_config() {
-        return array('mnethostid');
+        return array('mnethostid', 'enableleap2a');
     }
 
     public function supported_formats() {
-        return array(PORTFOLIO_FORMAT_FILE, PORTFOLIO_FORMAT_LEAP2A);
+        if ($this->get_config('enableleap2a')) {
+            return array(PORTFOLIO_FORMAT_FILE, PORTFOLIO_FORMAT_LEAP2A);
+        }
+        return array(PORTFOLIO_FORMAT_FILE);
     }
 
     public function expected_time($callertime) {
@@ -89,6 +92,7 @@ class portfolio_plugin_mahara extends portfolio_plugin_pull_base {
         }
         $mform->addElement('select', 'mnethostid', get_string('mnethost', 'portfolio_mahara'), $hosts);
         $mform->addRule('mnethostid', $strrequired, 'required', null, 'client');
+        $mform->addElement('selectyesno', 'enableleap2a', get_string('enableleap2a', 'portfolio_mahara'));
     }
 
     public function instance_sanity_check() {