How to Create Nested LiveView Components: Difference between revisions
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<source> | <source> | ||
defmodule AppWeb.PageLive do | defmodule AppWeb.PageLive do | ||
use AppWeb, :live_view | use AppWeb, :live_view | ||
def mount(_params, _session, socket) do | def mount(_params, _session, socket) do | ||
socket = assign(socket, count: 0) | socket = assign(socket, count: 0) | ||
{:ok, socket} | {:ok, socket} | ||
end | 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 | def render(assigns) do | ||
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</div> | </div> | ||
<.simple_button on_click="increment"> | |||
Increment Counter | |||
< | </.simple_button> | ||
</ | |||
</div> | </div> | ||
""" | """ | ||
end | end | ||
# | |||
def | |||
{ | |||
#_________________________________________________________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 | ||
#___________________________________________________________END BUTTON | |||
end | end | ||
</source> | </source> | ||
Latest revision as of 00:33, 8 April 2025
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