moodle-block_mytreestudyplan/block_gradelevel.php

<?php
require_once($CFG->libdir.'/gradelib.php');
require_once($CFG->dirroot.'/grade/querylib.php');
require_once($CFG->dirroot.'/blocks/gradelevel/lib.php');

use block_gradelevel;

class block_gradelevel extends block_base {

	public $levelset;

    public function init() {
		global $PAGE;
		global $COURSE;

        $this->title = get_config('gradelevel', 'blocktitle');
		if(empty($this->title))
		{
			$this->title = get_string('title', 'block_gradelevel');
		}

		// include javascript and run badge renderer when page loading is complete
		$PAGE->requires->js_call_amd('block_gradelevel/renderbadge', 'init');
		
		// find or create the levelset for this course
		$this->levelset = block_gradelevel_levelset::find_by_course($COURSE->id);
    }

    // The PHP tag and the curly bracket for the class definition 
    // will only be closed after there is another function added in the next section.
    
	public function html_attributes() {
		$attributes = parent::html_attributes(); // Get default values
		$attributes['class'] .= ' block_'. $this->name(); // Append our class to class attribute
		return $attributes;
	}

    public function get_content() {
		global $CFG;
        global $USER;
		global $COURSE;
        
        if ($this->content !== null) {
            return $this->content;
        }
		     
        $this->content =  new stdClass;

		if(empty($this->levelset))
		{
			$this->content->text   = "<figure class='dummybadge'><img height='150px' width='150px' src='{$CFG->wwwroot}/blocks/gradelevel/pix/brokenbadge.svg' /></figure>";
			$this->content->footer = get_string("unattached_course",'block_gradelevel');
		}
		else {
			// below can be a single call to $this->levelset->get_user_leveldata() once the need for debugging (fixed point total) is gone
			$pointstotal = $this->levelset->get_levelset_grade($USER->id);
			$level_info = $this->levelset->calculate_level($pointstotal);
	
			$this->content->text   = $this->levelset->render_badge($pointstotal);
		
			if($level_info->levelup_total > 0)
			{
				$this->content->footer = "<div class='pointinfo'>".get_string('levelup_at','block_gradelevel')." <span class='currentpoints'>{$level_info->points_in_level}</span>/<span class='leveluppoints'>{$level_info->levelup_total}</span></div>";
			}
			else 
			{
				$this->content->footer = "<div class='pointinfo complete'>".get_string('levelup_done','block_gradelevel')."</div>";
			}

			$coursecontext = context_course::instance($COURSE->id);
				
			if(has_capability('block/gradelevel:viewresults', $coursecontext))
			{
				$this->content->footer .= "\n<div class='teachermode'><a href='{$CFG->wwwroot}/blocks/gradelevel/view-results.php?courseid={$COURSE->id}'>".get_string('teacher_view_results','block_gradelevel')."</a></div>";
			}
		}     
        return $this->content;
    }


	public function hide_header() { return !get_config('gradelevel', 'showtitle'); }

	public function has_config() { return true; }
    




}