okokContract | JG Scripts Docs

Change the table name depending on your framework: owned_vehicles for ESX, or player_vehicles for QBCore.

The function below can be found in the okokContract resource.

function canVehicleBeSold(source, plate)
    local canBeSold = true
    local financed = MySQL.scalar.await('SELECT `financed` FROM `owned_vehicles` WHERE `plate` = ? LIMIT 1', { plate })
 
    if financed then
        TriggerClientEvent('okokNotify:Alert', source, "NO TRANSFER", "You cannot transfer a vehicle that is financed", 5000, 'error')
    elseif not financed then
       return canBeSold
    end
end