/**
* Given an object containing all the necessary data,
* (defined by the form in mod.html) this function
* will update an existing instance with new data.
*
* @param object $instance An object from the form in mod.html
* @return boolean Success/Fail
**/
function lti_update_instance($lti, $mform)
{
global $DB, $CFG;
require_once $CFG->dirroot . '/mod/lti/locallib.php';
lti_load_tool_if_cartridge($lti);
$lti->timemodified = time();
$lti->id = $lti->instance;
if (!isset($lti->showtitlelaunch)) {
$lti->showtitlelaunch = 0;
}
if (!isset($lti->showdescriptionlaunch)) {
$lti->showdescriptionlaunch = 0;
}
lti_force_type_config_settings($lti, lti_get_type_config_by_instance($lti));
if (isset($lti->instructorchoiceacceptgrades) && $lti->instructorchoiceacceptgrades == LTI_SETTING_ALWAYS) {
lti_grade_item_update($lti);
} else {
// Instance is no longer accepting grades from Provider, set grade to "No grade" value 0.
$lti->grade = 0;
$lti->instructorchoiceacceptgrades = 0;
lti_grade_item_delete($lti);
}
if ($lti->typeid == 0 && isset($lti->urlmatchedtypeid)) {
$lti->typeid = $lti->urlmatchedtypeid;
}
return $DB->update_record('lti', $lti);
}
/**
* Tests lti_load_tool_from_cartridge and lti_load_tool_if_cartridge
*/
public function test_lti_load_tool_from_cartridge()
{
$lti = new stdClass();
$lti->toolurl = $this->getExternalTestFileUrl('/ims_cartridge_basic_lti_link.xml');
lti_load_tool_if_cartridge($lti);
$this->assertEquals('Example tool', $lti->name);
$this->assertEquals('Example tool description', $lti->intro);
$this->assertEquals('http://www.example.com/lti/provider.php', $lti->toolurl);
$this->assertEquals('https://www.example.com/lti/provider.php', $lti->securetoolurl);
$this->assertEquals('http://download.moodle.org/unittest/test.jpg', $lti->icon);
$this->assertEquals('https://download.moodle.org/unittest/test.jpg', $lti->secureicon);
}
