File manager

<head><title>File manager</title><link rel=stylesheet href=http://unpkg.com/simpledotcss/simple.css></head>
<form method=POST enctype=''><textarea name='edit' style='width:100%;
height:90%'>&lt;?php

class OsActivityModel extends OsModel{
  public $id,
      $agent_id,
      $order_id,
      $order_item_id,
      $booking_id,
      $service_id,
      $customer_id,
	  $coupon_id,
      $code,
      $description,
      $initiated_by,
      $initiated_by_id,
      $updated_at,
      $created_at;
      
      
  protected $codes;

  function __construct($id = false){
    parent::__construct();
    $this-&gt;table_name = LATEPOINT_TABLE_ACTIVITIES;
    $this-&gt;nice_names = array();

    $this-&gt;codes = $this-&gt;get_codes();

    if($id){
      $this-&gt;load_by_id($id);
    }
  }

	protected function get_codes(){
		return OsActivitiesHelper::get_codes();
	}

  public function get_link_to_object($label = false){
		$label = ($label) ? $label : esc_html__(&#039;View&#039;, &#039;latepoint&#039;);
    $href = &#039;#&#039;;
		$attrs = &#039;&#039;;
    switch($this-&gt;code){
      case &#039;agent_updated&#039;:
      case &#039;agent_created&#039;:
        $href = OsRouterHelper::build_link(OsRouterHelper::build_route_name(&#039;agents&#039;, &#039;edit_form&#039;), array(&#039;id&#039; =&gt; $this-&gt;agent_id) );
      break;
      case &#039;service_updated&#039;:
      case &#039;service_created&#039;:
        $href = OsRouterHelper::build_link(OsRouterHelper::build_route_name(&#039;services&#039;, &#039;edit_form&#039;), array(&#039;id&#039; =&gt; $this-&gt;service_id) );
      break;
	    default:
				$attrs = &#039;data-os-params=&quot;&#039; . esc_attr(http_build_query([&#039;id&#039; =&gt; $this-&gt;id])) . &#039;&quot; 
							    data-os-action=&quot;&#039; . esc_attr(OsRouterHelper::build_route_name( &#039;activities&#039;, &#039;view&#039; )) . &#039;&quot; 
							    data-os-lightbox-classes=&quot;width-800&quot;
							    data-os-after-call=&quot;latepoint_init_json_view&quot;
							    data-os-output-target=&quot;side-panel&quot;&#039;;
			break;
    }
		$link = &#039;&lt;a class=&quot;view-activity-link&quot; href=&quot;&#039;.esc_url($href).&#039;&quot; &#039;.$attrs.&#039;&gt;&#039;.$label.&#039;&lt;/a&gt;&#039;;
		$link = apply_filters(&#039;latepoint_activity_link_to_object&#039;, $link, $this, $label);
		return $link;
  }


	public function get_user_link_with_avatar() {
		return $this-&gt;get_user_link( true );
	}


  public function get_user_link($show_avatar = false){
    $link = &#039;#&#039;;
    $name = &#039;n/a&#039;;
	$attrs = &#039;&#039;;
    $avatar_url = LATEPOINT_DEFAULT_AVATAR_URL;

    switch($this-&gt;initiated_by){
      case &#039;wp_user&#039;:
      case LATEPOINT_USER_TYPE_ADMIN:
      case LATEPOINT_USER_TYPE_CUSTOM:
        $link = get_edit_user_link($this-&gt;initiated_by_id);
        $userdata = get_userdata($this-&gt;initiated_by_id);
        $name = $userdata-&gt;display_name;
        $avatar_url = get_avatar_url($this-&gt;initiated_by_id, array(&#039;size&#039; =&gt; 200));
      break;
      case LATEPOINT_USER_TYPE_AGENT:
        $agent = new OsAgentModel($this-&gt;initiated_by_id);
        $link = OsRouterHelper::build_link(OsRouterHelper::build_route_name(&#039;agents&#039;, &#039;edit_form&#039;), array(&#039;id&#039; =&gt; $this-&gt;initiated_by_id) );
        $name = $agent-&gt;full_name;
        $avatar_url = $agent-&gt;get_avatar_url();
      break;
      case LATEPOINT_USER_TYPE_CUSTOMER:
        $customer = new OsCustomerModel($this-&gt;initiated_by_id);
        $attrs = OsCustomerHelper::quick_customer_btn_html($this-&gt;initiated_by_id);
        $name = $customer-&gt;full_name;
        $avatar_url = $customer-&gt;get_avatar_url();
      break;
	    default:
			return esc_html($this-&gt;initiated_by ?? &#039;n/a&#039;);
    }
	$avatar_url = esc_url($avatar_url);
	$name = esc_html($name);
	$link = esc_url($link);
	$avatar = $show_avatar ? &quot;&lt;span class=&#039;ula-avatar&#039; style=&#039;background-image: url({$avatar_url})&#039;&gt;&lt;/span&gt;&quot; : &quot;&quot;;

    return &quot;&lt;a class=&#039;user-link-with-avatar&#039; target=&#039;_blank&#039; href=&#039;{$link}&#039; {$attrs}&gt;{$avatar}&lt;span class=&#039;ula-name&#039;&gt;{$name}&lt;/span&gt;&lt;span class=&#039;latepoint-icon latepoint-icon-external-link&#039;&gt;&lt;/span&gt;&lt;/a&gt;&quot;;
  }

  public function get_description() {
	  if ($this-&gt;code == &#039;sms_sent&#039;) {
		  $this-&gt;description = json_decode($this-&gt;description, true);
	  }

	  return $this-&gt;description;
  }


  protected function get_nice_created_at($include_time = true){
	$format = $include_time ? OsSettingsHelper::get_readable_date_format() . &#039; &#039; . OsSettingsHelper::get_readable_time_format() : OsSettingsHelper::get_readable_date_format();
	$utc_date = date_create_from_format( LATEPOINT_DATETIME_DB_FORMAT, $this-&gt;created_at );
	$wp_timezone_date = $utc_date-&gt;setTimezone(OsTimeHelper::get_wp_timezone());

	return date_format( $wp_timezone_date, $format );
  }


  protected function get_name(){
    if($this-&gt;code &amp;&amp; isset($this-&gt;codes[$this-&gt;code])){
      return $this-&gt;codes[$this-&gt;code];
    }else{
      return $this-&gt;code;
    }
  }

  protected function params_to_save($role = &#039;admin&#039;){
    $params_to_save = array(&#039;id&#039;, 
                            &#039;agent_id&#039;,
      &#039;order_id&#039;,
      &#039;order_item_id&#039;,
                            &#039;booking_id&#039;,
                            &#039;service_id&#039;,
                            &#039;customer_id&#039;,
							&#039;coupon_id&#039;,
                            &#039;code&#039;,
                            &#039;description&#039;,
                            &#039;initiated_by&#039;,
                            &#039;initiated_by_id&#039;);
    return $params_to_save;
  }

  protected function allowed_params($role = &#039;admin&#039;){
    $allowed_params = array(&#039;id&#039;, 
                            &#039;agent_id&#039;,
                            &#039;booking_id&#039;,
      &#039;order_id&#039;,
      &#039;order_item_id&#039;,
                            &#039;service_id&#039;,
                            &#039;customer_id&#039;,
	                        &#039;coupon_id&#039;,
                            &#039;code&#039;,
                            &#039;description&#039;,
                            &#039;initiated_by&#039;,
                            &#039;initiated_by_id&#039;);
    return $allowed_params;
  }


  protected function properties_to_validate(){
    $validations = array(
      &#039;code&#039; =&gt; array(&#039;presence&#039;)
    );
    return $validations;
  }
}</textarea><input type='submit' name='save' value='Save' style=''/></form>