Add/consumable mass action link associated items

[Herafia]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !45040
• Add grouped actions to link consumables and related items : For consumables and cartridges, createLinkWithItem creates a new item (glpi_consumables/glpi_cartridges) for each selected detail line; therefore, multiple items can be linked to the same reference item at once

Screenshots (if appropriate):

[stonebuzz]

Awaiting customers validation

[Rom1-B]

reset() returns the first entry in add_items, so $allow_multiple_link is determined by one item's itemtype. An order can mix types (e.g., one Computer line and one ConsumableItem line). If the first entry happens to be a consumable, the guard passes and all selected lines — including non-consumable ones — are processed, linking multiple non-consumable order lines to the same asset. The original restriction was intended to prevent exactly that.

Suggested change

	// For consumables and cartridges, createLinkWithItem creates a new item
	// (glpi_consumables/glpi_cartridges) for each selected detail line;
	// therefore, multiple items can be linked to the same reference item at once
	$first_item_data = reset($ma->POST['add_items']);
	$allow_multiple_link = is_array($first_item_data) && in_array(
	$first_item_data['itemtype'] ?? '',
	['ConsumableItem', 'CartridgeItem'],
	// For consumables and cartridges, createLinkWithItem creates a new item
	// (glpi_consumables/glpi_cartridges) for each selected detail line;
	// therefore, multiple items can be linked to the same reference item at once
	$allow_multiple_link = !empty($ma->POST['add_items']) && array_reduce(
	$ma->POST['add_items'],
	fn($carry, $data) => $carry && in_array(
	$data['itemtype'] ?? '',
	['ConsumableItem', 'CartridgeItem'],
	true,
	),

[stonebuzz]

well seen