From d02833e47270c7801baf693a1ac6d21498695c0f Mon Sep 17 00:00:00 2001
From: sloane <git@sloanelybutsurely.com>
Date: Sat, 22 Feb 2025 12:35:38 -0500
Subject: [PATCH] create simple posts
---
lib/cms/posts.ex | 25 ++++++++
lib/cms/posts/post.ex | 20 ++++++
lib/cms_web/components/layouts/app.html.heex | 12 ++--
lib/cms_web/controllers/post_controller.ex | 21 +++++++
lib/cms_web/controllers/post_html.ex | 6 ++
.../controllers/post_html/index.html.heex | 6 ++
.../controllers/post_html/show.html.heex | 5 ++
lib/cms_web/live/post_live.ex | 62 +++++++++++++++++++
lib/cms_web/router.ex | 8 ++-
.../20250222164951_add_posts_table.exs | 13 ++++
10 files changed, 171 insertions(+), 7 deletions(-)
create mode 100644 lib/cms/posts.ex
create mode 100644 lib/cms/posts/post.ex
create mode 100644 lib/cms_web/controllers/post_controller.ex
create mode 100644 lib/cms_web/controllers/post_html.ex
create mode 100644 lib/cms_web/controllers/post_html/index.html.heex
create mode 100644 lib/cms_web/controllers/post_html/show.html.heex
create mode 100644 lib/cms_web/live/post_live.ex
create mode 100644 priv/repo/migrations/20250222164951_add_posts_table.exs
diff --git a/lib/cms/posts.ex b/lib/cms/posts.ex
new file mode 100644
index 0000000..8bcf248
--- /dev/null
+++ b/lib/cms/posts.ex
@@ -0,0 +1,25 @@
+defmodule CMS.Posts do
+ @moduledoc false
+ alias CMS.Posts.Post
+ alias CMS.Repo
+
+ def create_post(attrs) do
+ %Post{}
+ |> Post.changeset(attrs)
+ |> Repo.insert()
+ end
+
+ def update_post(post, attrs) do
+ post
+ |> Post.changeset(attrs)
+ |> Repo.update()
+ end
+
+ def get_post!(id) do
+ Repo.get!(Post, id)
+ end
+
+ def list_posts do
+ Repo.all(Post)
+ end
+end
diff --git a/lib/cms/posts/post.ex b/lib/cms/posts/post.ex
new file mode 100644
index 0000000..3918e97
--- /dev/null
+++ b/lib/cms/posts/post.ex
@@ -0,0 +1,20 @@
+defmodule CMS.Posts.Post do
+ @moduledoc false
+ use Ecto.Schema
+
+ import Ecto.Changeset, warn: false
+
+ @primary_key {:id, :binary_id, autogenerate: true}
+ schema "posts" do
+ field :title, :string
+ field :contents, :string
+
+ timestamps()
+ end
+
+ def changeset(%__MODULE__{} = post, attrs \\ %{}) do
+ post
+ |> cast(attrs, [:title, :contents])
+ |> validate_required([:contents])
+ end
+end
diff --git a/lib/cms_web/components/layouts/app.html.heex b/lib/cms_web/components/layouts/app.html.heex
index fbe0799..223cdd9 100644
--- a/lib/cms_web/components/layouts/app.html.heex
+++ b/lib/cms_web/components/layouts/app.html.heex
@@ -1,11 +1,14 @@
-<div :if={@admin?} class="flex flex-row justify-between py-1 px-3 mb-2 border-b border-slate-100">
+<div
+ :if={@admin?}
+ class="flex flex-row justify-between py-1 px-3 md:mb-2 border-b border-slate-100"
+>
<section class="flex flex-row gap-x-2">
<div class="pr-2 border-r border-slate-100">
<.link navigate={~p"/admin"} class="font-bold">admin mode</.link>
</div>
<nav>
<ul class="flex flex-row">
- <.link href="#" class="hover:underline">new post</.link>
+ <.link href={~p"/admin/posts/new"} class="hover:underline">new post</.link>
</ul>
</nav>
</section>
@@ -21,12 +24,11 @@
<.link href={~p"/"} class="font-bold hover:underline">sloanelybutsurely.com</.link>
<nav>
<ul>
- <li><.link href={~p"/writing"} class="hover:underline">writing</.link></li>
- <li><.link href={~p"/microblog"} class="hover:underline">microblog</.link></li>
+ <li><.link href={~p"/posts"} class="hover:underline">writing</.link></li>
</ul>
</nav>
</section>
- <main class="p-2">
+ <main class="p-2 w-full">
{@inner_content}
</main>
</div>
diff --git a/lib/cms_web/controllers/post_controller.ex b/lib/cms_web/controllers/post_controller.ex
new file mode 100644
index 0000000..22b3b62
--- /dev/null
+++ b/lib/cms_web/controllers/post_controller.ex
@@ -0,0 +1,21 @@
+defmodule CMSWeb.PostController do
+ use CMSWeb, :controller
+
+ alias CMS.Posts
+
+ def index(conn, _params) do
+ posts = Posts.list_posts()
+
+ conn
+ |> assign(:posts, posts)
+ |> render(:index)
+ end
+
+ def show(conn, %{"post_id" => post_id}) do
+ post = Posts.get_post!(post_id)
+
+ conn
+ |> assign(:post, post)
+ |> render(:show)
+ end
+end
diff --git a/lib/cms_web/controllers/post_html.ex b/lib/cms_web/controllers/post_html.ex
new file mode 100644
index 0000000..f3f2082
--- /dev/null
+++ b/lib/cms_web/controllers/post_html.ex
@@ -0,0 +1,6 @@
+defmodule CMSWeb.PostHTML do
+ @moduledoc false
+ use CMSWeb, :html
+
+ embed_templates "post_html/*"
+end
diff --git a/lib/cms_web/controllers/post_html/index.html.heex b/lib/cms_web/controllers/post_html/index.html.heex
new file mode 100644
index 0000000..30c87c7
--- /dev/null
+++ b/lib/cms_web/controllers/post_html/index.html.heex
@@ -0,0 +1,6 @@
+<%= for post <- @posts do %>
+ <article id={"post-#{post.id}"}>
+ <h2><.link href={~p"/posts/#{post}"}>{post.title}</.link></h2>
+ <p>{post.contents}</p>
+ </article>
+<% end %>
diff --git a/lib/cms_web/controllers/post_html/show.html.heex b/lib/cms_web/controllers/post_html/show.html.heex
new file mode 100644
index 0000000..d037a53
--- /dev/null
+++ b/lib/cms_web/controllers/post_html/show.html.heex
@@ -0,0 +1,5 @@
+<header class="flex flex-row justify-between">
+ <h1>{@post.title}</h1>
+ <.link :if={@admin?} href={~p"/admin/posts/#{@post}"}>edit</.link>
+</header>
+<p>{@post.contents}</p>
diff --git a/lib/cms_web/live/post_live.ex b/lib/cms_web/live/post_live.ex
new file mode 100644
index 0000000..10a5514
--- /dev/null
+++ b/lib/cms_web/live/post_live.ex
@@ -0,0 +1,62 @@
+defmodule CMSWeb.PostLive do
+ @moduledoc false
+ use CMSWeb, :live_view
+
+ alias CMS.Posts
+ alias CMS.Posts.Post
+
+ @impl true
+ def handle_params(_params, _uri, %{assigns: %{live_action: :new}} = socket) do
+ post = %Post{}
+ changeset = Post.changeset(post)
+
+ socket = assign(socket, post: post, form: to_form(changeset))
+
+ {:noreply, socket}
+ end
+
+ def handle_params(%{"post_id" => post_id}, _uri, %{assigns: %{live_action: :edit}} = socket) do
+ post = Posts.get_post!(post_id)
+
+ changeset = Post.changeset(post)
+
+ socket = assign(socket, post: post, form: to_form(changeset))
+
+ {:noreply, socket}
+ end
+
+ @impl true
+ def handle_event("save_post", %{"post" => attrs}, %{assigns: %{live_action: :new}} = socket) do
+ socket =
+ case Posts.create_post(attrs) do
+ {:ok, post} -> push_navigate(socket, to: ~p"/admin/posts/#{post}")
+ {:error, changeset} -> assign(socket, form: to_form(changeset))
+ end
+
+ {:noreply, socket}
+ end
+
+ def handle_event("save_post", %{"post" => attrs}, %{assigns: %{post: post, live_action: :edit}} = socket) do
+ socket =
+ case Posts.update_post(post, attrs) do
+ {:ok, post} ->
+ assign(socket, post: post, form: post |> Post.changeset() |> to_form())
+
+ {:error, changeset} ->
+ assign(socket, form: to_form(changeset))
+ end
+
+ {:noreply, socket}
+ end
+
+ @impl true
+ def render(assigns) do
+ ~H"""
+ <.form for={@form} class="flex flex-col" phx-submit="save_post">
+ <input type="text" id={@form[:title].id} name={@form[:title].name} value={@form[:title].value} />
+ <textarea id={@form[:contents].id} name={@form[:contents].name}>{@form[:contents].value} </textarea>
+ <button type="submit" class="self-end">save</button>
+ </.form>
+ """
+ end
+end
diff --git a/lib/cms_web/router.ex b/lib/cms_web/router.ex
index 6a5885b..b394f2d 100644
--- a/lib/cms_web/router.ex
+++ b/lib/cms_web/router.ex
@@ -32,8 +32,9 @@ defmodule CMSWeb.Router do
pipe_through :supports_admin_action
get "/", PageController, :home
- get "/writing", PageController, :writing
- get "/microblog", PageController, :microblog
+
+ get "/posts", PostController, :index
+ get "/posts/:post_id", PostController, :show
live "/sign-in", AdminLoginLive
post "/admin/session/create", AdminSessionController, :create
@@ -45,6 +46,9 @@ defmodule CMSWeb.Router do
pipe_through :requires_admin
live "/", AdminLive
+
+ live "/posts/new", PostLive, :new
+ live "/posts/:post_id", PostLive, :edit
end
end
diff --git a/priv/repo/migrations/20250222164951_add_posts_table.exs b/priv/repo/migrations/20250222164951_add_posts_table.exs
new file mode 100644
index 0000000..065b85c
--- /dev/null
+++ b/priv/repo/migrations/20250222164951_add_posts_table.exs
@@ -0,0 +1,13 @@
+defmodule CMS.Repo.Migrations.AddPostsTable do
+ use Ecto.Migration
+
+ def change do
+ create table(:posts, primary_key: false) do
+ add :id, :uuid, primary_key: true
+ add :title, :text
+ add :contents, :text, null: false, default: ""
+
+ timestamps()
+ end
+ end
+end