Feature: Allow fields to reuse previously generated values
chuck-alt-delete opened this issue · 0 comments
It would be great if a field could reuse the generated value from another field. This currently works with parent_field
and child_field
to specify a foreign key relationship in _meta.relationships
, but we may want to extend that to other fields as well.
For example, suppose we want a field that takes the value of another field and increases it by a random number between 5 to 10. The most general solution might be to somehow allow referencing other fields by json path? This has the benefit that it would work for nested fields as well.
Dependent fields would have to come later in the order so the upstream field has a chance to get generated first.
Related issues
For Debezium change data capture, a record has before
and after
fields that wrap the values before and after the record changed in the upstream database. Often we'll want to include a field that didn't change, like a primary key id
. But with the current implementation, there isn't a way for one field to reference the data generated in another field.