Actuailze and fix code example in Creating JPQL-request(POST)

[owlet1997]

Enviroment:

• Documentation version: 7.2
• Part of the documentation: REST API
• Existing page: https://doc.cuba-platform.com/restapi-7.2-ru/?_ga=2.242102981.69188936.1594188709-1678419056.1591102979#rest_api_v2_ex_query_post

Description of the bug or enchacement
§5.8

1. The request uses a field status from class Order which doesn't exist:

<?xml version="1.0"?>
<queries xmlns="http://schemas.haulmont.com/cuba/rest-queries.xsd">
    <query name="ordersByIds" entity="sales_Order" view="order-edit">
        <jpql><![CDATA[select o from sales_Order o where o.id in :ids and o.status = :status]]></jpql>
        <params>
            <param name="ids" type="java.util.UUID[]"/>
            <param name="status" type="java.lang.String"/>
        </params>
    </query>
</queries>

Listing of class Order:

package com.company.sales.entity;

import com.haulmont.chile.core.annotations.Composition;
import com.haulmont.chile.core.annotations.NamePattern;
import com.haulmont.cuba.core.entity.StandardEntity;
import com.haulmont.cuba.core.entity.annotation.Lookup;
import com.haulmont.cuba.core.entity.annotation.LookupType;
import com.haulmont.cuba.core.entity.annotation.OnDelete; 
import com.haulmont.cuba.core.global.DeletePolicy;

import javax.persistence.*;
import java.math.BigDecimal;
import java.util.Date;
import java.util.List;

@NamePattern("%s %s|date,customer")
@Table(name = "SALES_ORDER")
@Entity(name = "sales_Order")
public class Order extends StandardEntity {
  private static final long serialVersionUID = 5602880376063487368L;

   @Temporal(TemporalType.DATE)
   @Column(name = "DATE_", nullable = false)
   protected Date date;

   @Column(name = "NUMBER_")
   private String number;

   @Composition
   @OnDelete(DeletePolicy.CASCADE)
   @OneToMany(mappedBy = "order")
   protected List<OrderLine> lines;

   @Column(name = "AMOUNT")
   protected BigDecimal amount;

   @Lookup(type = LookupType.DROPDOWN, actions = {"lookup", "open"})
   @ManyToOne(fetch = FetchType.LAZY)
   @JoinColumn(name = "CUSTOMER_ID")
   protected Customer customer;

   @Column(name = "NUMBER_OF_SPECIAL_PRODUCTS")
   protected Integer numberOfSpecialProducts;
   //getters and setters omitted
}

So the example needs to be updated