Get all elements up (to the root) in HierarchicalDatasource

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#1

Hi all, I have a HierarchicalDatasource in a table and I need to get all the elements up (to the root), is there any function that returns all the elements above the current one?
Thanks and regards.

#2

Hi,

Sorry for a long reply. You can use on of the HierarchicalDatasource interface methods, which match your needs:

  • HierarchicalDatasource#getParent - gets parent ID for item with the given ID
  • HierarchicalDatasource#getRootItemIds - identifiers of all root items
  • HierarchicalDatasource#getChildren - gets children IDs for item with the given ID
  • HierarchicalDatasource#isRoot - true if item with the given ID is a root item
  • HierarchicalDatasource#hasChildren - true if item with the given ID has children

There is no method, which returns all parents recursive, but you can write your own, using getParent and isRoot.

Regards,

Gleb.

#3

Thanks Gleb for explaination.