alejandro-du / enterprise-app Goto Github PK

The example project has the Person DTO with an embedded oneToMany contactInfo property. It is possible to add new contactInfos, but deletion is not possible.

EDIT: Discovered that deletion works, when the complete row is selected by cliking the empty space between the cells. You may remove this issue.

First of all, thanks for creating this great application framework!

I have been trying to implement a DTO with an file "attachment" property. The purpose is to utilize the DownloadField to provide the uploading and downloading of files.

My first trial includes only a single file per DTO instance:

@Getter
@Setter
@Downloadable(propertyFileName="attachmentFileName"
private File attachment;

@Getter
@Setter
private String attachmentFileName;

With this, the upload works perfectly, but the dowload throws the following exception:

java.lang.RuntimeException: java.lang.ClassCastException: java.io.File cannot be cast to [B

Could you please provide an example how to define this in the correct way?

Furthermore, I continued to test with the possibility to upload multiple files. Instead of defining just a single file, I changed to property to an embedded CRUD property (OneToMany relationship to an own Attachment DTO).

@Getter
@Setter
@OneToMany(cascade=ALL, orphanRemoval=true)
@CrudField(embedded=true, forceRequired=false)
private Set<Attachment>

However, this shows only a CRUD table with all properties in the Attachment DTO, except for the file "attachment" itself.

An example for also getting this to work would be highly appreciated. Thanks, in advance!