[16.0][ADD] fleet_vehicle_purchase_link: add new module

[WesleyOliveira98]

cc: @marcelsavegnago @kaynnan @CristianoMafraJunior @medicegabriel @MarcusPDL

[BhaveshHeliconia]

Suggested change

	def _compute_purchase_line_count(self):
	line_model = self.env["purchase.order.line"]
	for vehicle in self:
	vehicle.purchase_line_count = line_model.search_count(
	[
	("fleet_vehicle_id", "=", vehicle.id),
	]
	)
	def _compute_purchase_line_count(self):
	line_model = self.env["purchase.order.line"]
	data = line_model.read_group(
	[("fleet_vehicle_id", "in", self.ids)],
	["fleet_vehicle_id"],
	["fleet_vehicle_id"],
	)
	mapped_data = {
	item["fleet_vehicle_id"][0]: item["fleet_vehicle_id_count"]
	for item in data
	}
	for vehicle in self:
	vehicle.purchase_line_count = mapped_data.get(vehicle.id, 0)

[BhaveshHeliconia]

Reduces N SQL queries (one per vehicle) to a single read_group() query, improving performance on list views with multiple records.

[BhaveshHeliconia]

Suggested change

	"summary": """
	Link fleet vehicles to purchase order lines""",
	"summary": "Link fleet vehicles to purchase order lines",

[BhaveshHeliconia]

Suggested change

	"author": "Escodoo,Odoo Community Association (OCA)",
	"author": "Escodoo, Odoo Community Association (OCA)",

[BhaveshHeliconia]

Suggested change

	string="Purchases"
	string="Purchase Lines"

The base module fleet_vehicle_purchase already shows "Purchase Orders". Having "Purchases" next to it is confusing, so "Purchase Lines" clearly indicates that this button counts order lines.

[BhaveshHeliconia]

Suggested change

	# Copyright 2026 - TODAY, Wesley Oliveira <wesley.oliveira@escodoo.com.br>
	# Copyright 2026 Escodoo - Wesley Oliveira <wesley.oliveira@escodoo.com.br>

Apply this copyright header format across all other files as well.