Feature Request #3132
Improve import preview
|Assignee:||Sam Wilson||% Done:|
- existing rows (where an incoming PK is given) that are going to be updated, and
- incoming values that violate any constraints.
The incoming values will be displayed alongside the values to be imported, so that the user can compare them with what is going to be imported (and manually update the import values, if required).
There will be a notice near the final 'Import' submit button alerting the user to any of the above highlights. If there are constraint violations that will result in the import failing (e.g. a new row contains a duplicate value for a NOT NULL, UNIQUE key) then the submit button will be disabled.
Duplicate values for NULLable UNIQUE keys will be set to NULL if the import is proceeded with.