Models for upload and post; generated liveview controller for posts

8 files changed, 285 insertions, 0 deletions

diff --git a/lib/aggiedit_web/live/live_helpers.ex b/lib/aggiedit_web/live/live_helpers.ex
new file mode 100644
index 0000000..aa6b28a
--- /dev/null
+++ b/lib/aggiedit_web/live/live_helpers.ex
@@ -0,0 +1,60 @@
+defmodule AggieditWeb.LiveHelpers do
+  import Phoenix.LiveView
+  import Phoenix.LiveView.Helpers
+
+  alias Phoenix.LiveView.JS
+
+  @doc """
+  Renders a live component inside a modal.
+
+  The rendered modal receives a `:return_to` option to properly update
+  the URL when the modal is closed.
+
+  ## Examples
+
+      <.modal return_to={Routes.post_index_path(@socket, :index)}>
+        <.live_component
+          module={AggieditWeb.PostLive.FormComponent}
+          id={@post.id || :new}
+          title={@page_title}
+          action={@live_action}
+          return_to={Routes.post_index_path(@socket, :index)}
+          post: @post
+        />
+      </.modal>
+  """
+  def modal(assigns) do
+    assigns = assign_new(assigns, :return_to, fn -> nil end)
+
+    ~H"""
+    <div id="modal" class="phx-modal fade-in" phx-remove={hide_modal()}>
+      <div
+        id="modal-content"
+        class="phx-modal-content fade-in-scale"
+        phx-click-away={JS.dispatch("click", to: "#close")}
+        phx-window-keydown={JS.dispatch("click", to: "#close")}
+        phx-key="escape"
+      >
+        <%= if @return_to do %>
+          <%= live_patch "✖",
+            to: @return_to,
+            id: "close",
+            class: "phx-modal-close",
+            phx_click: hide_modal()
+          %>
+        <% else %>
+         <a id="close" href="#" class="phx-modal-close" phx-click={hide_modal()}>✖</a>
+        <% end %>
+
+        <%= render_slot(@inner_block) %>
+      </div>
+    </div>
+    """
+  end
+
+  defp hide_modal(js \\ %JS{}) do
+    js
+    |> JS.hide(to: "#modal", transition: "fade-out")
+    |> JS.hide(to: "#modal-content", transition: "fade-out-scale")
+  end
+end
diff --git a/lib/aggiedit_web/live/post_live/form_component.ex b/lib/aggiedit_web/live/post_live/form_component.ex
new file mode 100644
index 0000000..11ad4a1
--- /dev/null
+++ b/lib/aggiedit_web/live/post_live/form_component.ex
@@ -0,0 +1,55 @@
+defmodule AggieditWeb.PostLive.FormComponent do
+  use AggieditWeb, :live_component
+
+  alias Aggiedit.Rooms
+
+  @impl true
+  def update(%{post: post} = assigns, socket) do
+    changeset = Rooms.change_post(post)
+
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:changeset, changeset)}
+  end
+
+  @impl true
+  def handle_event("validate", %{"post" => post_params}, socket) do
+    changeset =
+      socket.assigns.post
+      |> Rooms.change_post(post_params)
+      |> Map.put(:action, :validate)
+
+    {:noreply, assign(socket, :changeset, changeset)}
+  end
+
+  def handle_event("save", %{"post" => post_params}, socket) do
+    save_post(socket, socket.assigns.action, post_params)
+  end
+
+  defp save_post(socket, :edit, post_params) do
+    case Rooms.update_post(socket.assigns.post, post_params) do
+      {:ok, _post} ->
+        {:noreply,
+         socket
+         |> put_flash(:info, "Post updated successfully")
+         |> push_redirect(to: socket.assigns.return_to)}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign(socket, :changeset, changeset)}
+    end
+  end
+
+  defp save_post(socket, :new, post_params) do
+    case Rooms.create_post(post_params) do
+      {:ok, _post} ->
+        {:noreply,
+         socket
+         |> put_flash(:info, "Post created successfully")
+         |> push_redirect(to: socket.assigns.return_to)}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign(socket, changeset: changeset)}
+    end
+  end
+end
diff --git a/lib/aggiedit_web/live/post_live/form_component.html.heex b/lib/aggiedit_web/live/post_live/form_component.html.heex
new file mode 100644
index 0000000..682ec78
--- /dev/null
+++ b/lib/aggiedit_web/live/post_live/form_component.html.heex
@@ -0,0 +1,24 @@
+<div>
+  <h2><%= @title %></h2>
+
+  <.form
+    let={f}
+    for={@changeset}
+    id="post-form"
+    phx-target={@myself}
+    phx-change="validate"
+    phx-submit="save">
+  
+    <%= label f, :title %>
+    <%= textarea f, :title %>
+    <%= error_tag f, :title %>
+  
+    <%= label f, :body %>
+    <%= textarea f, :body %>
+    <%= error_tag f, :body %>
+  
+    <div>
+      <%= submit "Save", phx_disable_with: "Saving..." %>
+    </div>
+  </.form>
+</div>
diff --git a/lib/aggiedit_web/live/post_live/index.ex b/lib/aggiedit_web/live/post_live/index.ex
new file mode 100644
index 0000000..0b12ed0
--- /dev/null
+++ b/lib/aggiedit_web/live/post_live/index.ex
@@ -0,0 +1,46 @@
+defmodule AggieditWeb.PostLive.Index do
+  use AggieditWeb, :live_view
+
+  alias Aggiedit.Rooms
+  alias Aggiedit.Rooms.Post
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok, assign(socket, :posts, list_posts())}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    {:noreply, apply_action(socket, socket.assigns.live_action, params)}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Post")
+    |> assign(:post, Rooms.get_post!(id))
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Post")
+    |> assign(:post, %Post{})
+  end
+
+  defp apply_action(socket, :index, _params) do
+    socket
+    |> assign(:page_title, "Listing Posts")
+    |> assign(:post, nil)
+  end
+
+  @impl true
+  def handle_event("delete", %{"id" => id}, socket) do
+    post = Rooms.get_post!(id)
+    {:ok, _} = Rooms.delete_post(post)
+
+    {:noreply, assign(socket, :posts, list_posts())}
+  end
+
+  defp list_posts do
+    Rooms.list_posts()
+  end
+end
diff --git a/lib/aggiedit_web/live/post_live/index.html.heex b/lib/aggiedit_web/live/post_live/index.html.heex
new file mode 100644
index 0000000..4297d5a
--- /dev/null
+++ b/lib/aggiedit_web/live/post_live/index.html.heex
@@ -0,0 +1,41 @@
+<h1>Listing Posts</h1>
+
+<%= if @live_action in [:new, :edit] do %>
+  <.modal return_to={Routes.post_index_path(@socket, :index)}>
+    <.live_component
+      module={AggieditWeb.PostLive.FormComponent}
+      id={@post.id || :new}
+      title={@page_title}
+      action={@live_action}
+      post={@post}
+      return_to={Routes.post_index_path(@socket, :index)}
+    />
+  </.modal>
+<% end %>
+
+<table>
+  <thead>
+    <tr>
+      <th>Title</th>
+      <th>Body</th>
+
+      <th></th>
+    </tr>
+  </thead>
+  <tbody id="posts">
+    <%= for post <- @posts do %>
+      <tr id={"post-#{post.id}"}>
+        <td><%= post.title %></td>
+        <td><%= post.body %></td>
+
+        <td>
+          <span><%= live_redirect "Show", to: Routes.post_show_path(@socket, :show, post) %></span>
+          <span><%= live_patch "Edit", to: Routes.post_index_path(@socket, :edit, post) %></span>
+          <span><%= link "Delete", to: "#", phx_click: "delete", phx_value_id: post.id, data: [confirm: "Are you sure?"] %></span>
+        </td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<span><%= live_patch "New Post", to: Routes.post_index_path(@socket, :new) %></span>
diff --git a/lib/aggiedit_web/live/post_live/show.ex b/lib/aggiedit_web/live/post_live/show.ex
new file mode 100644
index 0000000..2416156
--- /dev/null
+++ b/lib/aggiedit_web/live/post_live/show.ex
@@ -0,0 +1,21 @@
+defmodule AggieditWeb.PostLive.Show do
+  use AggieditWeb, :live_view
+
+  alias Aggiedit.Rooms
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok, socket}
+  end
+
+  @impl true
+  def handle_params(%{"id" => id}, _, socket) do
+    {:noreply,
+     socket
+     |> assign(:page_title, page_title(socket.assigns.live_action))
+     |> assign(:post, Rooms.get_post!(id))}
+  end
+
+  defp page_title(:show), do: "Show Post"
+  defp page_title(:edit), do: "Edit Post"
+end
diff --git a/lib/aggiedit_web/live/post_live/show.html.heex b/lib/aggiedit_web/live/post_live/show.html.heex
new file mode 100644
index 0000000..e6eaebe
--- /dev/null
+++ b/lib/aggiedit_web/live/post_live/show.html.heex
@@ -0,0 +1,31 @@
+<h1>Show Post</h1>
+
+<%= if @live_action in [:edit] do %>
+  <.modal return_to={Routes.post_show_path(@socket, :show, @post)}>
+    <.live_component
+      module={AggieditWeb.PostLive.FormComponent}
+      id={@post.id}
+      title={@page_title}
+      action={@live_action}
+      post={@post}
+      return_to={Routes.post_show_path(@socket, :show, @post)}
+    />
+  </.modal>
+<% end %>
+
+<ul>
+
+  <li>
+    <strong>Title:</strong>
+    <%= @post.title %>
+  </li>
+
+  <li>
+    <strong>Body:</strong>
+    <%= @post.body %>
+  </li>
+
+</ul>
+
+<span><%= live_patch "Edit", to: Routes.post_show_path(@socket, :edit, @post), class: "button" %></span> |
+<span><%= live_redirect "Back", to: Routes.post_index_path(@socket, :index) %></span>
diff --git a/lib/aggiedit_web/router.ex b/lib/aggiedit_web/router.ex
index e400391..dec730a 100644
--- a/lib/aggiedit_web/router.ex
+++ b/lib/aggiedit_web/router.ex
@@ -21,6 +21,13 @@ defmodule AggieditWeb.Router do
     pipe_through :browser
 
     get "/", PageController, :index
+
+    live "/posts", PostLive.Index, :index
+    live "/posts/new", PostLive.Index, :new
+    live "/posts/:id/edit", PostLive.Index, :edit
+
+    live "/posts/:id", PostLive.Show, :show
+    live "/posts/:id/show/edit", PostLive.Show, :edit
   end
 
   # Other scopes may use custom stacks.