Regarding the "compute" attribute of a Field object, the book says this:
"compute is an optional function. If a record is inserted and there is no value for a field that has a compute attribute, the value is calculated by passing the record (as a dict) to the compute function." My current testing, on 1.89.3, shows that compute will run not only when a record is inserted, but indeed every time any other field in that same record is updated. I have a field that is a uuid which is only supposed to be calculated once, on insertion. Also, the compute function is passed the current record field values as a dict, but that excludes any value the Field with compute() might currently have. In my opinion, the text in the book is misleading. Thoughts?
