Note that the `budget` parameter was added to the `delete_path` method
so it works in the tests; on production, it worked because this
component is only rendered on pages which already have the `budget`
parameter.
Co-authored-by: Javi Martín <javim@elretirao.net>
The `use_helpers` method was added in ViewComponent 3.8.0, and it's
included by default in all components since version 3.11.0.
Note we sometimes delegated the `can?` method to the controller instead
of the helpers, for no particularly reason. We're unifying that code as
well.
We were rendering the whole sidebar again, which wasn't necessary since
most of it remains unchanged. This resulted in complicated code to pass
the necessary information to render the same map that was already
rendered. Furthermore, when users had been moving the map around or
zooming out, we were resetting the map to its default settings after
voting, which was potentially annoying.
This also fixes the wrong investments being displayed in the map after
voting; only the investments on the current page were displayed in this
case while the index displayed all of them.
This is the only part of the sidebar that needs to be re-rendered after
an AJAX request adding or removing investments to a ballot, so having a
separate view just for it will make it easier to simplify the code.
