Ndtyjky

How to display UI part for related entities?

If I have such grid for Product entity

    GridCrud<T> crud = new GridCrud<T>(tClass);

    crud.getCrudFormFactory().setUseBeanValidation(true);

    crud.setFindAllOperation(() -> (Collection<T>)repository.findAll());

    crud.setAddOperation(repository::save);

    crud.setUpdateOperation(repository::save);

    crud.setDeleteOperation(repository::delete);

And Product is next

public class Product {//...

@ManyToMany

@JoinTable(name = "optionToProduct",

        joinColumns = {@JoinColumn(name = "optionId")},

        inverseJoinColumns = {@JoinColumn(name = "productId")})

private Set<Option> options = new HashSet<>();

}

How to show list of Options for each Product during editing?

Vaadin

    <dependencyManagement>

<dependencies>

  <dependency>

    <groupId>com.vaadin</groupId>

    <artifactId>vaadin-bom</artifactId>

    <version>8.2.0</version>

    <type>pom</type>

    <scope>import</scope>

  </dependency>

 </dependencies>

</dependencyManagement>



<dependencies>

    <dependency>

        <groupId>com.vaadin</groupId>

        <artifactId>vaadin-spring-boot-starter</artifactId>

        <version>2.0.1</version>

    </dependency>



    <dependency>

        <groupId>org.vaadin.crudui</groupId>

        <artifactId>crudui</artifactId>

        <version>2.3.0</version>

    </dependency>

GridCrud is not a class that is available in Vaadin per default, so either you are using an add-on or custom code from your team. Can you check where it comes from? It would make it easier for others to help you.

I’m not sure what grid.getCrudFormFactory() returns, but it sounds like the correct place to configure these. Ie. formFactory.addField(field, component); or something similar.