JPQL Designer - Tuple

Support
1

I was trying to use the Tuple option to get the result of fields mix of Entities and sum of values and seems the Studio has a very good option but not sure how to get the Entity and values from the resultList and didn’t find any documentation on it.

image

This generates:

final List<DpsAcctStatement> dpsAcctStatementList = dataManager.load(DpsAcctStatement.class)
                .query("select d.dpsAccount, SUM(d.amount) from dps_DpsAcctStatement d where d.dpsAccount.dpsStatus = :dpsAccountDpsStatus1 group by d.dpsAccount")
                .parameter("dpsAccountDpsStatus1", DpsStatus.APPROVED)
                .list();

However, when I run, I get the following exception:


DevelopmentException: DataManager cannot execute query for single attributes

Any code snippets would help

2

Hello I was facing similar puzzle while creating data aggregate, but I was able to get the tuple option from the query builder functional with key value connection

        <keyValueCollection id="salesDc">
            <properties>
                <property name="sp" class="com.company.test2.entity.Serviceplan"/>
                <property name="price" datatype="int"/>

            </properties>
            <loader id="salesDl">
                <query>
                    <![CDATA[select s.vehicle, AVG(s.price)
                    from Serviceplan s
                    group by s.vehicle ]]>
                </query>
            </loader>
        </keyValueCollection>

I hope this is correct

3

Yes, and it can also be done in Java using DataManager.loadValues() method.

1 Like
4

Yes! but my question is more related to the designer that is not generating the code properly.

5

You are right, JPQL designer should take into account the context of the query.
Created issue: https://youtrack.jmix.io/issue/JST-5558

1 Like
6

Thank you Konstantin.