user auth flow

SophieDeBenedetto · SophieDeBenedetto · commit 4f2196dbbeb3 · 2019-07-10T10:55:45.000-04:00
diff --git a/assets/package-lock.json b/assets/package-lock.json
diff --git a/lib/pointing_party/card.ex b/lib/pointing_party/card.ex
@@ -1,6 +1,8 @@
 defmodule PointingParty.Card do
   use Ecto.Schema
   import Ecto.Changeset
+  alias PointingParty.Repo
+  alias PointingParty.Card
 
   schema "cards" do
     field :description, :string
@@ -15,4 +17,8 @@ defmodule PointingParty.Card do
     |> cast(attrs, [:title, :description])
     |> validate_required([:title, :description])
   end
+
+  def get!(id) do
+    Repo.get!(Card, id)
+  end
 end
diff --git a/lib/pointing_party/user.ex b/lib/pointing_party/user.ex
@@ -0,0 +1,15 @@
+defmodule PointingParty.User do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "users" do
+    field :username, :string
+  end
+
+  @doc false
+  def changeset(user, attrs \\ %{}) do
+    user
+    |> cast(attrs, [:username])
+    |> validate_required([:username])
+  end
+end
diff --git a/lib/pointing_party_web.ex b/lib/pointing_party_web.ex
@@ -40,6 +40,7 @@ defmodule PointingPartyWeb do
       use Phoenix.HTML
 
       import PointingPartyWeb.ErrorHelpers
+      import PointingPartyWeb.LayoutHelpers
       import PointingPartyWeb.Gettext
       alias PointingPartyWeb.Router.Helpers, as: Routes
     end
diff --git a/lib/pointing_party_web/controllers/card_controller.ex b/lib/pointing_party_web/controllers/card_controller.ex
@@ -0,0 +1,18 @@
+defmodule PointingPartyWeb.CardController do
+  use PointingPartyWeb, :controller
+  plug :authenticate_user
+  alias PointingParty.Card
+
+  def index(conn, _params) do
+    # temporary, just to get something on the page for now
+    card = Card.get!(1)
+    render(conn, "index.html", card: card)
+  end
+
+  def authenticate_user(conn, _params) do
+    case get_session(conn, :username) do
+      nil -> redirect(conn, to: "/login") |> halt()
+      username -> assign(conn, :username, username)
+    end
+  end
+end
diff --git a/lib/pointing_party_web/controllers/session_controller.ex b/lib/pointing_party_web/controllers/session_controller.ex
@@ -0,0 +1,26 @@
+defmodule PointingPartyWeb.SessionController do
+  use PointingPartyWeb, :controller
+  alias PointingParty.User
+
+  def new(conn, _params) do
+    changeset = User.changeset(%User{})
+    render(conn, "new.html", changeset: changeset)
+  end
+
+  def create(conn, params) do
+    changeset = User.changeset(%User{}, params["user"])
+    if changeset.valid? do
+      user =  Ecto.Changeset.apply_changes(changeset)
+      put_session(conn, :username, user.username)
+      |> redirect(to: "/cards") |> halt()
+    else
+      changeset = %{changeset | action: :insert}
+      render(conn, "new.html", changeset: changeset)
+    end
+  end
+
+  def delete(conn, _params) do
+    clear_session(conn)
+    |> redirect(to: "/login") |> halt()
+  end
+end
diff --git a/lib/pointing_party_web/router.ex b/lib/pointing_party_web/router.ex
@@ -15,8 +15,11 @@ defmodule PointingPartyWeb.Router do
 
   scope "/", PointingPartyWeb do
     pipe_through :browser
-
+    get "/login", SessionController, :new
+    post "/login", SessionController, :create
+    delete "/logout", SessionController, :delete
     get "/", PageController, :index
+    get "/cards", CardController, :index
   end
 
   # Other scopes may use custom stacks.
diff --git a/lib/pointing_party_web/templates/card/index.html.eex b/lib/pointing_party_web/templates/card/index.html.eex
@@ -0,0 +1 @@
+<%= @card.title %>
diff --git a/lib/pointing_party_web/templates/layout/app.html.eex b/lib/pointing_party_web/templates/layout/app.html.eex
@@ -4,15 +4,19 @@
     <meta charset="utf-8"/>
     <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-    <title>PointingParty · Phoenix Framework</title>
+    <title>PointingParty</title>
     <link rel="stylesheet" href="<%= Routes.static_path(@conn, "/css/app.css") %>"/>
   </head>
   <body>
     <header>
       <section class="container">
         <nav role="navigation">
           <ul>
-            <li><a href="https://hexdocs.pm/phoenix/overview.html">Get Started</a></li>
+            <%= if signed_in?(@conn) do %>
+              <li><%= link "Log Out", to: Routes.session_path(@conn, :delete), method: :delete, class: "nav-link" %></li>
+            <%= else %>
+              <li><%= link "Log In", to: Routes.session_path(@conn, :new), class: "nav-link" %></li>
+            <%= end %>
           </ul>
         </nav>
         <a href="http://phoenixframework.org/" class="phx-logo">
diff --git a/lib/pointing_party_web/templates/session/new.html.eex b/lib/pointing_party_web/templates/session/new.html.eex
@@ -0,0 +1,9 @@
+<h1>Sign In</h1>
+<%= form_for @changeset, Routes.session_path(@conn, :create), fn f -> %>
+  <label>
+    Username: <%= text_input f, :username %>
+  </label>
+  <%=  error_tag f, :username %>  
+
+  <%= submit "Sign In" %>
+<% end %>
diff --git a/lib/pointing_party_web/views/card_view.ex b/lib/pointing_party_web/views/card_view.ex
@@ -0,0 +1,3 @@
+defmodule PointingPartyWeb.CardView do
+  use PointingPartyWeb, :view
+end
diff --git a/lib/pointing_party_web/views/layout_helpers.ex b/lib/pointing_party_web/views/layout_helpers.ex
@@ -0,0 +1,10 @@
+defmodule PointingPartyWeb.LayoutHelpers do
+  use Phoenix.HTML
+
+  @doc """
+  Generates tag for inlined form input errors.
+  """
+  def signed_in?(conn) do
+    conn.assigns[:username]
+  end
+end
diff --git a/lib/pointing_party_web/views/session_view.ex b/lib/pointing_party_web/views/session_view.ex
@@ -0,0 +1,3 @@
+defmodule PointingPartyWeb.SessionView do
+  use PointingPartyWeb, :view
+end
