templateApi> deleteNode method(s) #6

Require a method to delete any node fro the heirarchy. This will include

• A "CanDelete" method, which returns a list of errors (strings), or an empty list if deletion is llowed
• Removing the node from parent().children

To delete a record, :

• it must not exist on any index.allowedRecordNodeIds
• it must not exist on and reference type fields
• these rules should apply to any child nodes , which will also be deleted

To delete an index:

• it must not be being used as lookup index for a reference field
• it must not be a "reverse reference" index

Aggregate Group Nodes ? Should be straight forward

There may be other tidyup thinks that need to happen when a node is deleted. need to think about that