overwrite existing entity via bulkloader.Loader
- by Ray Yun
I was going to CSV based export/import for large data with app engine. My idea was just simple.
First column of CSV would be key of entity.
If it's not empty, that row means existing entity and should overwrite old one.
Else, that row is new entity and should create new one.
I could export key of entity by adding key property.
class…