moodle-block_mytreestudyplan/globallevels.php

<?php
if(isset($_SERVER['SCRIPT_FILENAME']))
{
	// If SCRIPT_FILENAME is set, use that so the symlinked directories the developmen environment uses are handled correctly
	$root = dirname(dirname(dirname($_SERVER['SCRIPT_FILENAME'])));
	require_once($root."/config.php");
}
else
{
	// If not, assume the cwd is not symlinked and proceed as we are used to
	require_once("../../config.php");
}

// HOW DID WE ENSURE ONLY ADMINS CAN VIEW THIS PAGE?

require_once($CFG->libdir.'/adminlib.php');

admin_externalpage_setup("block_gradelevel_default_levels");

$action = optional_param('action', null, PARAM_ALPHA);
$data = optional_param('data', null, PARAM_ALPHA);
if(!empty($data))
{
	$data = json_decode($data);
}

if(!empty($action) && confirm_sesskey())
{
	switch($action) {
		case 'submitchanges':
			
			print_r($data);






			redirect($PAGE->url);
			break;
	}

}
else
{
	$PAGE->requires->js_call_amd('block_gradelevel/leveleditor', 'init');

	print $OUTPUT->header();
	print $OUTPUT->heading(get_string('cfgpage_globallevels', 'block_gradelevel'));

	$global_levels = $DB->get_records('block_gradelevel_levels', array('levelset_id' => 0));
	usort( $global_levels, function( $a, $b) {
		return ( $a->points < $b->points ) ? -1 : 1;
	} );

	$skill_id = 0;
	print "<p>".get_string('levelcfg_description','block_gradelevel')."</p>";
	print "<table id='level_config' data-skill='{$skill_id}'>";
	print "<thead><tr><th>".get_string('levelcfg_head_points','block_gradelevel')."</th><th>".get_string('levelcfg_head_color','block_gradelevel')."</th></tr></thead>";
	print "<tbody>";
	foreach($global_levels as $lvl)
	{
		$color = ltrim($lvl->badgecolor,"#");
		print "<tr data-rowid='{$lvl->id}'><td><input data-name='points' type='number' class='uint' value='{$lvl->points}'></td><td><input type='text' data-name='color' class='jscolor' value='{$color}'></td></tr>";

	}
	print "</tbody>";
	print "<tfoot><tr><td class='block_gradelevel_addlevel' colspan='2'><a data-action='addlevel' href='#' onclick='return false;'>".get_string("levelcfg_addlevel",'block_gradelevel')."</a></td></td></tfoot>";
	print "</table>";
	print "<p><button data-action='savechanges'>".get_string('savechanges','core')."</button></p>";



	print $OUTPUT->footer();
}