You could probably do that through update/2.
Remember that overriding update function requires you to socket = assign(socket, assigns) (because this is default behaviour).
This way you can also change the loaded data if the prop should change as well. It’s your codes responsibility to not load excessively, so check if socket.assigns.your_data_prop holds the data before you load and assign to socket again.
Edit:
In general the send_update combo with update/2 is a very powerful way to model self contained components.
In SurfaceBootstrap I have a public api as such:
# External API
def show(id) do
send_update(__MODULE__, id: id, action: :show)
end
def hide(id) do
send_update(__MODULE__, id: id, action: :hide)
end
With my update/2 looking like this:
def update(assigns, socket) do
socket = assign(socket, assigns)
socket =
case assigns[:action] do
nil ->
socket
:show ->
push_event(socket, "bsn-show-modal-#{assigns.id}", %{})
:hide ->
push_event(socket, "bsn-hide-modal-#{assigns.id}", %{})
end
|> assign(:action, nil)
{:ok, socket}
end
. It’s such a joy to work with and complements LiveView so well, that I can’t imagine myself developing LiveView apps without it at this point.