CODEWITHSUNDEEP
openxava
user1943998
user1943998

Reputation: 51

Access detail element of a collection inside a section in openxava

How can I access the details element of a collection entity which is inside one section of another entity with openxava? For example, in the view of entity A, we have section {S1,S2,S3} and inside section S3 view, we have {collection of entity B}. Now I want to access the detail element of entity B, so that i can fill the element in an action controller. How do I do that?

Upvotes: 0

Views: 1366

Answers (3)

HayrolR
HayrolR

Reputation: 861

You can do it in several ways. Here you have one, I have used it with some references that I want to modify from inside of an action called by the base module (which should work with your collection):

Query q = XPersistence.getManager().createQuery("JPQL QUERY TO RETRIVE THE COLLECTION WITH :parameterIfNeeded");
q.setParameter("parameterIfNeeded", "value");
List entityBList = q.getResultList();
if (getView().getModelName().equalsIgnoreCase("yourBaseModelViewName")) {
    getView().getSubview("yourSubViewName").setModel(entityBList);
    getView().getSubview("yourSubViewName").refresh();
}

You must to be using OX 4.6 to be able to use setModel(). And remember that the "yourSubViewName" is the name of the property for your collection into the base model.

I have not tested that code with a collection, so make the adjustments according to your needs, maybe you will need to CAST the query result list or something.

Upvotes: 0

javierpaniza
javierpaniza

Reputation: 702

Obtain the entity associated to the view and get the collection from it. Since OpenXava 4.3 you can do it in this way:

MyEntity myEntity = (MyEntity) getView().getEntity();   
Collection myCollection = myEntity.getMyCollection();

If you're using an OX previous to 4.3 do it in this way:

Map keyValues = getView().getKeyValuesWithValue();
if (!keyValues.isEmpty()) {
    MyEntity myEntity = (MyEntity) 
        MapFacade.findEntity(getView().getModelName(), keyValues);
    Collection myCollection = myEntity.getMyCollection();
}

Upvotes: 0

javierpaniza
javierpaniza

Reputation: 702

Get the collection directly from the view, in this way:

Collection myCollection = getView().getSubview("myCollection").getCollectionObjects();

It must work even with oldest OpenXava versions

Upvotes: 1

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