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A foundation for building Elixir Phoenix apps — SaaS, social networks, ERP systems, marketplaces, and more
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Files
lib/phoenix_kit_web/live/modules/entities/hooks.ex
defmodule PhoenixKitWeb.Live.Modules.Entities.Hooks do
@moduledoc """
LiveView hooks for entity module pages.
Provides common setup and subscriptions for all entity-related LiveViews.
"""
import Phoenix.LiveView
alias PhoenixKit.Admin.Presence
alias PhoenixKit.Entities.Events
alias PhoenixKit.Users.Auth.Scope
@doc """
Subscribes to entity events and tracks user presence when the LiveView is connected.
Add this to your entity LiveView with:
on_mount PhoenixKitWeb.Live.Modules.Entities.Hooks
This automatically:
- Subscribes to entity creation, update, and deletion events
- Tracks authenticated user presence for dashboard statistics
"""
def on_mount(:default, _params, session, socket) do
if connected?(socket) do
Events.subscribe_to_entities()
track_page_visit(socket, session)
end
{:cont, socket}
end
defp track_page_visit(socket, session) do
scope = socket.assigns[:phoenix_kit_current_scope]
if scope && Scope.authenticated?(scope) do
user = %{
id: Scope.user_id(scope),
email: Scope.user_email(scope)
}
session_id = session["live_socket_id"] || generate_session_id()
Presence.track_user(user, %{
connected_at: DateTime.utc_now(),
session_id: session_id,
current_page: get_current_page(socket),
ip_address: extract_ip(socket),
user_agent: get_connect_info(socket, :user_agent)
})
end
end
defp get_current_page(socket) do
# Try to get from socket assigns, fallback to generic entities page
socket.assigns[:current_path] || "/admin/entities"
end
defp extract_ip(socket) do
case get_connect_info(socket, :peer_data) do
%{address: {a, b, c, d}} -> "#{a}.#{b}.#{c}.#{d}"
%{address: address} -> to_string(address)
_ -> "unknown"
end
end
defp generate_session_id do
:crypto.strong_rand_bytes(16) |> Base.encode64()
end
end