public function get_content()
{
global $CFG, $COURSE, $USER, $PAGE, $DB;
require_once $CFG->dirroot . '/blocks/pearson/locallib.php';
require_once $CFG->dirroot . '/lib/modinfolib.php';
$this->content = new stdClass();
$this->content->text = '';
$strHTML = '';
$courseid = $COURSE->id;
// check capabilities and throw error if needed
has_capability('block/pearson:view', context_course::instance($courseid));
if (pearsondirect_is_global_configured()) {
// this means that the base url, key and secret are configured correctly
if (pearsondirect_is_block_configured($this)) {
// this means there is a product code associated with this block
$strInstHTML = '';
$strStuHTML = '';
$strPlatform = '';
$code = '';
$codes = $this->config->codes;
$customcodes = $this->config->customcodes;
if (isset($customcodes) && trim($customcodes) !== '') {
$code = $customcodes;
} else {
$code = $codes;
}
$parameters = $this->config->parameters;
if ($courseconfig = pearsondirect_course_has_config($courseid)) {
// this means we've loaded and associated this link bundle to this course before
$strPlatform = $courseconfig->platform;
// check to see if the config has changed
$currentcode = $courseconfig->code;
$currentparams = $courseconfig->parameters;
$codediff = strcasecmp($currentcode, $code);
$paramdiff = strcasecmp($currentparams, $parameters);
if ($codediff != 0) {
pearsondirect_handle_code_change($courseconfig, $code, $parameters);
$product = pearsondirect_get_product(trim($code), trim($parameters));
if ($product) {
// this means the code is valid
$strIds = '';
$links = $product->bundle->links;
foreach ($links as $link) {
if ($strIds != '') {
$strIds .= ',';
}
$strIds .= $link->id;
$isinstructorlink = pearsondirect_is_instructor_link($link);
if (pearsondirect_is_content_placement($link) && !$isinstructorlink) {
pearsondirect_create_lti_type($link, $courseid, $USER->id);
} else {
pearsondirect_create_lti($link, $courseid);
}
}
$pearsonmmconfig = new stdClass();
$pearsonmmconfig->id = $courseconfig->id;
$pearsonmmconfig->course = $courseid;
$pearsonmmconfig->code = $code;
$pearsonmmconfig->parameters = $parameters;
$pearsonmmconfig->platform = $product->platform;
$pearsonmmconfig->links = $strIds;
pearsondirect_update_pearson_mm_config($pearsonmmconfig);
rebuild_course_cache($courseid);
redirect($PAGE->url);
}
}
if ($paramdiff != 0) {
pearsondirect_handle_param_change($courseconfig, $parameters);
}
$highlander_ids = explode(',', $courseconfig->links);
$coursemodules = $DB->get_records('course_modules', array('course' => $courseid, 'module' => pearsondirect_get_lti_module()));
foreach ($highlander_ids as $highlanderid) {
foreach ($coursemodules as $coursemodule) {
if (!strncmp($coursemodule->idnumber, pearsondirect_construct_id_for_ltitypes($highlanderid, $courseid), strlen(pearsondirect_construct_id_for_ltitypes($highlanderid, $courseid)))) {
if (substr($coursemodule->idnumber, strlen($coursemodule->idnumber) - strlen('t')) == 't') {
$isinstructorlink = $coursemodule->visible == 0;
$link = $DB->get_record('lti', array('id' => $coursemodule->instance));
$title = trim(str_replace($strPlatform, '', $link->name));
$title = trim(str_replace('Mastering', '', $title));
$url = $CFG->wwwroot . "/mod/lti/view.php?l=" . $link->id;
if ($isinstructorlink) {
$strInstHTML .= '<li>';
$strInstHTML .= '<a href="' . $url . '" >';
$strInstHTML .= $title;
$strInstHTML .= '</a>';
$strInstHTML .= '</li>';
} else {
$strStuHTML .= '<li>';
$strStuHTML .= '<a href="' . $url . '" >';
$strStuHTML .= $title;
$strStuHTML .= '</a>';
$strStuHTML .= '</li>';
}
}
}
}
}
} else {
$product = pearsondirect_get_product(trim($code), trim($parameters));
$strPlatform = $product->platform;
if ($product) {
// this means the code is valid
$links = $product->bundle->links;
$strIds = '';
foreach ($links as $link) {
if ($strIds != '') {
$strIds .= ',';
}
$strIds .= $link->id;
$isinstructorlink = pearsondirect_is_instructor_link($link);
if (pearsondirect_is_content_placement($link) && !$isinstructorlink) {
pearsondirect_updateexistinglink($courseid, $link, 'c');
pearsondirect_create_lti_type($link, $courseid, $USER->id);
} else {
$id = NULL;
$id = pearsondirect_updateexistinglink($courseid, $link, 't');
if (!isset($id)) {
$id = pearsondirect_create_lti($link, $courseid);
}
$title = trim(str_replace($product->platform, '', $link->title));
$title = trim(str_replace('Mastering', '', $title));
$url = $CFG->wwwroot . "/mod/lti/view.php?l=" . $id;
if ($isinstructorlink) {
$strInstHTML .= '<li>';
$strInstHTML .= '<a href="' . $url . '" >';
$strInstHTML .= $title;
$strInstHTML .= '</a>';
$strInstHTML .= '</li>';
} else {
$strStuHTML .= '<li>';
$strStuHTML .= '<a href="' . $url . '" >';
$strStuHTML .= $title;
$strStuHTML .= '</a>';
$strStuHTML .= '</li>';
}
}
}
$pearsonmmconfig = new stdClass();
$pearsonmmconfig->course = $courseid;
$pearsonmmconfig->code = $code;
$pearsonmmconfig->parameters = $parameters;
$pearsonmmconfig->platform = $product->platform;
$pearsonmmconfig->links = $strIds;
pearsondirect_create_pearson_mm_config($pearsonmmconfig);
rebuild_course_cache($courseid);
redirect($PAGE->url);
} else {
$strHTML = get_string('pearson_couldnotaccessproduct', 'block_pearson');
}
}
$strHTML .= '<div id="' . 'block_pearson_tree' . '" >';
$strHTML .= '<ul style="' . 'list-style-type: none;margin: 0;padding:2px 0px 0px 2px;' . '">';
$strHTML .= '<li>' . $strPlatform;
if (!pearsondirect_is_student($USER, $courseid) && $strInstHTML != '') {
$strHTML .= '<ul style="' . 'list-style-type: none;margin: 0;padding:2px 0px 0px 4px;' . '"><li>Instructor links';
$strHTML .= '<ul style="' . 'list-style-type: none;margin: 0;padding:2px 0px 0px 6px;' . '">' . $strInstHTML . '</ul>';
$strHTML .= '</li></ul>';
}
if ($strStuHTML != '') {
$strHTML .= '<ul style="' . 'list-style-type: none;margin: 0;padding:2px 0px 0px 4px;' . '"><li>Student links';
$strHTML .= '<ul style="' . 'list-style-type: none;margin: 0;padding:2px 0px 0px 6px;' . '">' . $strStuHTML . '</ul>';
$strHTML .= '</li></ul>';
}
$strHTML .= '</li></ul>';
$strHTML .= '</div>';
} else {
// this means there is no product code associated with this block
$strHTML = get_string('pearson_blocknotconfigured', 'block_pearson');
}
} else {
// this means that the base url, key and secret are not configured correctly
$strHTML = get_string('pearson_notconfigured', 'block_pearson');
}
$this->content->text = format_text($strHTML, FORMAT_HTML);
$this->content->footer = '';
return $this->content;
}
function pearsondirect_handle_param_change($courseconfig, $newparams)
{
global $DB;
$product = pearsondirect_get_product($courseconfig->code, $newparams);
if ($product) {
$links = $product->bundle->links;
$coursemodules = $DB->get_records('course_modules', array('course' => $courseconfig->course, 'module' => pearsondirect_get_lti_module()));
foreach ($links as $link) {
$strCustomParams = '';
$cps = $link->customParameters;
foreach ($cps as $cp) {
$n = $cp->name;
$v = $cp->value;
if ($strCustomParams == NULL) {
$strCustomParams = '';
}
$strCustomParams .= $n . '=' . $v . "\n";
}
$isinstructorlink = pearsondirect_is_instructor_link($link);
if (pearsondirect_is_content_placement($link) && !$isinstructorlink) {
$type = $DB->get_record('lti_types', array('tooldomain' => pearsondirect_construct_id_for_ltitypes($link->id, $courseconfig->course)), '*', IGNORE_MISSING);
if ($type) {
$DB->set_field("lti_types_config", "value", $strCustomParams, array('typeid' => $type->id, 'name' => 'customparameters'));
}
}
if ($coursemodules) {
foreach ($coursemodules as $coursemodule) {
if (!strncmp($coursemodule->idnumber, pearsondirect_construct_id_for_ltitypes($link->id, $courseconfig->course), strlen(pearsondirect_construct_id_for_ltitypes($link->id, $courseconfig->course)))) {
$lti = $DB->get_record('lti', array('id' => $coursemodule->instance), '*', IGNORE_MISSING);
if ($lti) {
$str_current_params = $lti->instructorcustomparameters;
if (isset($str_current_params) && trim($str_current_params) != '') {
$explodeParams = explode("\n", $str_current_params);
if ($explodeParams) {
foreach ($explodeParams as $xp) {
if (trim($xp) != '') {
$kv = explode('=', $xp);
if (!strstr($strCustomParams, $kv[0])) {
$strCustomParams .= $xp . "\n";
}
}
}
}
}
$DB->set_field("lti", "instructorcustomparameters", $strCustomParams, array("id" => $coursemodule->instance));
}
}
}
}
}
$DB->set_field("pearson", "parameters", $newparams, array("id" => $courseconfig->id));
}
}