Parent Child Create

Question

working with JDev12.1.2.
I have a view object that is based off a query. I then have another updatable view object made from an entity. The 2 then have a view link with an id field. The query based VO being the parent and the entity VO being a child and having a 1-0..1 ratio. How can i display a table with each row in the parent table having a child, even if the child does not exist yet. I do not want to have to go and click a create/insert button for every record in the table.

Answer 1

Try this:
-Create your master detail table in the classic way (usgin darag and drop from the VOs to the page).
-In your bean, create a method that
     -gets the master table
     -Loop through the rows and for each master row:
          -Check if a child record exists for this master row and if not, create one programatically
-Call this method on your page load.
Her's a code snippet to add the detail rows:
Row[] masterRows = masterVO.getAllRowsInRange();
for(Row masterRow : masterRows){
  RowSetIterator detailRowsIter = masterRow.getAttribute("TheAttributeNameOfTheVL");
  if(detailRowsIter.getRowCount() == 0){
  NameValuePairs nvp = new NameValuePairs();
  //fill the nvp: the id field representing the link should be automatically filled by the framework no need to fill it
  Row detailRow = detailRowsIter.createAndInitRow();
  detailRowsIter.insertRow(detailRow);
Regards,
Elias.