Convert String into Literal?

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1

Hello, it is possible to convert a String into Literal ?

# ex. convert "ThermostatLive" in an assigns into ThermostatLive

<%= live_render(@conn, @var) %>
2

Hi @sabo66 do you mean into an atom? "ThermostatLive" is a literal string, ThermostatLive is a literal atom. Your code doesn’t show any literals it shows an assign which is basically a type of variable.

Converting strings to atoms can be dangerous if they’re based on user specified content. Where is your @var coming from?

3

@var is coming from the mount of a LiveView
I would render LiveView into another LiveView using a menu and a assign variable (or params ?)

ex. Pet (principal LiveView)
- DogLive
- CatLive
- … (childs LiveView)

  def render(assigns) do
    ~H"""
     <nav>Menu</nav>
      <%= live_render(@socket, @var) %>
    """
  end

  def mount(_params, _sessions, socket) do 
    {:ok, socket |> assign(var: "DogLive")} #DogLive is the default child LiveView
  end
4

It is very unusual to want to nest liveviews. More commonly you would render different components (live or functional) under the same liveview, or alternatively for navigation it’s more common to have a common Nav component in your app.html.heex file.

1 Like
5

Hm okay, I’m starting with Phoenix I will see the LiveComponent thx