How to Create Nested LiveView Components
From ElixirBlocks
This example demonstrates a nested LiveView component.
defmodule AppxWeb.SandboxLive do use AppxWeb, :live_view import MyComponent def mount(_params, _session, socket) do {:ok, socket} end def render(assigns) do ~H""" Hello World! YAY <MyComponent.greet name="Jane" /> """ end end
defmodule MyComponent do use Phoenix.Component def greet(assigns) do ~H""" <p>Hello, <%= @name %>!</p> """ end end
An Example of a Button
defmodule AppWeb.PageLive do use AppWeb, :live_view def mount(_params, _session, socket) do socket = assign(socket, count: 0) {:ok, socket} end # Event handler in the parent LiveView def handle_event("increment", _params, socket) do {:noreply, assign(socket, count: socket.assigns.count + 1)} end def render(assigns) do ~H""" <div class="container mx-auto p-4"> <h1 class="text-xl font-bold mb-4">Counter with Button Component</h1> <div class="mb-4"> <p>Current count: <span class="font-bold"><%= @count %></span></p> </div> <.simple_button on_click="increment"> Increment Counter </.simple_button> </div> """ end #_________________________________________________________BUTTON # Simplified button component def simple_button(assigns) do ~H""" <button class="btn btn-lg" phx-click={@on_click} > <%= render_slot(@inner_block) %> </button> """ end #___________________________________________________________END BUTTON end