Import Create Missing - Xberg Bridge

Adds a JSONPath field to import_create_missing's New Document Values rows (and, recursively, to a nested one2many field's own Row Values rows), on a line whose template uses the xberg extraction mode - the same idea as import_via_xberg's own xberg_jsonpath on the line itself, applied to each row instead.

auto_installs once both import_create_missing and import_via_xberg are installed; neither of those two depends on the other.

Why a separate value per JSONPath match, not narrow-then-regex

import_via_xberg's own xberg_jsonpath narrows the document down to matched text, joins every match with \n, and runs Pattern's regex over the joined result with re.MULTILINE - exactly mirroring how the base module's own "lines" extraction works over flat text.

A New Document Values row can't safely do the same thing: it has to stay aligned, value for value, with the line's own extracted rows (see import_create_missing's README on how they're paired by position). One blank match, or one match that itself contains a newline (a wrapped Description cell, say), would shift every later row in the joined-and-split text - silently pairing a product's name with the wrong part number. So this module evaluates Pattern (if set) against each JSONPath match individually instead: xberg_jsonpath selects the values, one per row, and Pattern (optional) just refines each one in place. A blank match stays a blank value at that position rather than disappearing and shifting everything after it.

Configuration

On a New Document Values row (see import_create_missing), set JSONPath the same way you would on the line itself - e.g. if the line's own Pattern/JSONPath finds a part number at $.tables[1].cellsByHeader[*]['Part\n Number'], a row filling in name from that same table's Description column uses $.tables[1].cellsByHeader[*]['Description']. Pattern is optional here - leave it blank to use each matched value as-is.

Tests

python odoo/odoo-bin -c odoo.conf -d <testdb> -i import_create_missing_xberg \
  --test-enable --test-tags /import_create_missing_xberg --stop-after-init