calendar widget problem

/**
     * Front-end display of widget.
     *
     * @see WP_Widget::widget()
     *
     * @param array $args     Widget arguments.
     * @param array $instance Saved values from database.
     */
    public function widget( $args, $instance ) {
        $title = apply_filters( 'widget_title', $instance['title'] );
       $user=wp_get_current_user();
        $course_ids=ld_get_mycourses($user);

        echo $args['before_widget'];

        foreach ($course_ids as $course_id) {

            $course_status = learndash_course_status($course_id,$user->ID);
            $course = get_post($course_id);

            echo "<h4>Events : ".get_the_title($course_id)."</h4>";
            $m=date('n');
            $y=date('Y');

        draw_calendar($m,$y,$course);

/*-----------The Problem-------------*/
//I need to loop through the $course array,get the $lessons array,loop through $lessons array and call a //method on the post object(i.e $lesson["post"]).I need to compare a value from the database with the id //of $lesson as key.The calendars need only be drawn according to no of courses and not no of lessons.
//Any Ideas??

         }
        echo $args['after_widget'];
    }

/*The calendar function:*/
//Calendar:
   function draw_calendar($month,$year,$course_id){




        // Draw table for Calendar

        $calendar = '<table cellpadding="0" cellspacing="0" class="calendar">';
         $calendar.= '<caption class="calendar-cap">'.date('F').'</caption>';
        // Draw Calendar table headings
        $headings = array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
        $calendar.= '<tr class="calendar-row"><td class="calendar-day-head">'.implode('</td><td class="calendar-day-head">',$headings).'</td></tr>';

        //days and weeks variable for now ...
        $running_day = date('w',mktime(0,0,0,$month,1,$year));
        $days_in_month = date('t',mktime(0,0,0,$month,1,$year));
        $days_in_this_week = 1;
        $day_counter = 0;
        $dates_array = array();

        // row for week one
        $calendar.= '<tr class="calendar-row">';

        // Display "blank" days until the first of the current week
        for($x = 0; $x < $running_day; $x++):
            $calendar.= '<td class="calendar-day-np">&nbsp;</td>';
            $days_in_this_week++;
        endfor;
        $lessons = learndash_get_course_lessons_list($course);

            $comp_time_m[$d]=date('m',get_option($user->ID.$lessons[$d]["post"]->ID.'comp_time'));
           $comp_time_d[$d]=date('d',get_option($user->ID.$lessons[$d]["post"]->ID.'comp_time'));


        for($list_day = 1; $list_day <= $days_in_month; $list_day++):
           if(empty($comp_time)) {
                      //Current day styling
                    if($list_day==$access_from_d && $month==$access_from_m)
                    {
                        $currentday='currentday';
                    }else
                    {
                        $currentday='';
                    }
                    $calendar.= '<td class="calendar-day '.$currentday.'">';

                    // Add in the day number
                    if($list_day<date('d') && $month==date('n'))
                    {
                        $showtoday=$list_day;
                    }else
                    {
                        $showtoday=$list_day;
                    }
                    $calendar.= '<div class="day-number">'.$showtoday.'</a></div>';

                    // Draw table end
                    $calendar.= '</td>';
                    if($running_day == 6):
                        $calendar.= '</tr>';
                        if(($day_counter+1) != $days_in_month):
                            $calendar.= '<tr class="calendar-row">';
                        endif;
                        $running_day = -1;
                        $days_in_this_week = 0;
                    endif;

                }else{

                   //Current day styling
                    if($list_day==$comp_time_d[$d] && $month==$comp_time_m[$d])
                    {
                        $currentday='currentday';
                    }else
                    {
                        $currentday='';
                    }
                    $calendar.= '<td class="calendar-day '.$currentday.'">';

                    // Add in the day number
                    if($list_day<date('d') && $month==date('n'))
                    {
                        $showtoday=$list_day;
                    }else
                    {
                        $showtoday=$list_day;
                    }
                    $calendar.= '<div class="day-number">'.$showtoday.'</a></div>';

                    // Draw table end
                    $calendar.= '</td>';
                    if($running_day == 6):
                        $calendar.= '</tr>';
                        if(($day_counter+1) != $days_in_month):
                            $calendar.= '<tr class="calendar-row">';
                        endif;
                        $running_day = -1;
                        $days_in_this_week = 0;
                    endif;

                }

            $days_in_this_week++; $running_day++; $day_counter++;
        endfor;


        // Finish the rest of the days in the week
        if($days_in_this_week < 8):
            for($x = 1; $x <= (8 - $days_in_this_week); $x++):
                $calendar.= '<td class="calendar-day-np">&nbsp;</td>';
            endfor;
        endif;

        // Draw table final row
        $calendar.= '</tr>';

        // Draw table end the table
        $calendar.= '</table>';

        // Finally all done, return result
        echo $calendar;

    }



}