Find the DB_import and DB differences

This function compares the data in the `DB` object (new data) with the previous or reference data to identify differences. It returns a list of differences for upload. The function ensures that the new data matches the structure defined by the metadata and provides warnings when discrepancies are found.

Usage

find_upload_diff(DB, view_old = F, n_row_view = 20)

Arguments

DB

A validated `DB` object containing REDCap project data and settings. Generated using load_DB or setup_DB

view_old

Logical. If TRUE, it will display a preview of the old data (default is FALSE).

n_row_view

Numeric. Defines how many rows of the old data to view (default is 20).

Value

A list of differences between the new and old data (`upload_list`).

Details

The function compares the data in `DB$data_update` (new data) with the current data in the database (`DB$data`). If the form names in the new data do not match the `DB$metadata$forms$form_name`, a warning is issued. The function goes through each table in the new data and compares it with the old data, recording the differences.

The `compare` and `to` parameters allow users to specify specific data choices to compare, though their exact usage will depend on how the function is fully implemented.