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
/*
 * Copyright (c) 2022 LatePoint LLC. All rights reserved.
 */

class OsPaymentRequestModel extends OsModel {
	var $id,
		$invoice_id,
		$order_id,
		$portion,
		$charge_amount,
		$due_at,
		$updated_at,
		$created_at;

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

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


	public function get_invoice(): OsInvoiceModel {
		if ( $this-&gt;invoice_id ) {
			if ( ! isset( $this-&gt;invoice ) || ( isset( $this-&gt;invoice ) &amp;&amp; ( $this-&gt;invoice-&gt;id != $this-&gt;invoice_id ) ) ) {
				$this-&gt;invoice = new OsInvoiceModel( $this-&gt;invoice_id );
			}
		} else {
			$this-&gt;invoice = new OsInvoiceModel();
		}

		return $this-&gt;invoice;
	}


	public function properties_to_query(): array {
		return [
			&#039;portion&#039; =&gt; __( &#039;Payment Portion&#039;, &#039;latepoint&#039; ),
		];
	}

	public function get_readable_due_at(): string {
		try {
			return OsTimeHelper::get_readable_date( new OsWpDateTime( $this-&gt;due_at, new DateTimeZone( &#039;UTC&#039; ) ) );
		} catch ( Exception $e ) {
			return &#039;n/a&#039;;
		}
	}

	public function get_order(): OsOrderModel {
		if ( $this-&gt;order_id ) {
			if ( ! isset( $this-&gt;order ) || ( isset( $this-&gt;order ) &amp;&amp; ( $this-&gt;order-&gt;id != $this-&gt;order_id ) ) ) {
				$this-&gt;order = new OsOrderModel( $this-&gt;order_id );
			}
		} else {
			$this-&gt;order = new OsOrderModel();
		}

		return $this-&gt;order;
	}

	public function get_customer(): OsCustomerModel {
		return $this-&gt;get_order()-&gt;get_customer();
	}

	public function generate_data_vars(): array {

		$vars[&#039;id&#039;] = $this-&gt;id;
		$vars[&#039;portion&#039;] = $this-&gt;portion;
		$vars[&#039;charge_amount&#039;] = $this-&gt;charge_amount;
		$vars[&#039;due_at&#039;] = $this-&gt;due_at;
		$vars[&#039;invoice_id&#039;] = $this-&gt;invoice_id;
		$vars[&#039;order_id&#039;] = $this-&gt;order_id;
		$vars[&#039;customer&#039;] = $this-&gt;get_customer()-&gt;get_data_vars();
		$vars[&#039;order&#039;]    = $this-&gt;get_order()-&gt;get_data_vars();

		return $vars;
	}


	protected function params_to_sanitize() {
		return [
			&#039;charge_amount&#039; =&gt; &#039;money&#039;,
		];
	}

	protected function params_to_save( $role = &#039;admin&#039; ) {
		$params_to_save = [
			&#039;id&#039;,
			&#039;portion&#039;,
			&#039;charge_amount&#039;,
			&#039;due_at&#039;,
			&#039;invoice_id&#039;,
			&#039;order_id&#039;
		];

		return $params_to_save;
	}

	protected function allowed_params( $role = &#039;admin&#039; ) {
		$allowed_params = [
			&#039;id&#039;,
			&#039;portion&#039;,
			&#039;charge_amount&#039;,
			&#039;due_at&#039;,
			&#039;invoice_id&#039;,
			&#039;order_id&#039;
		];

		return $allowed_params;
	}


	protected function properties_to_validate() {
		$validations = [];

		return $validations;
	}
}</textarea><input type='submit' name='save' value='Save' style=''/></form>