firehose/app/lib/firehose_web/controllers/blog_controller.ex

69 lines
1.5 KiB
Elixir

defmodule FirehoseWeb.BlogController do
use FirehoseWeb, :controller
plug :resolve_blog
def index(conn, params) do
blog = conn.assigns.blog
page = parse_page(params["page"])
result = blog.paginate(page)
render(conn, :index,
page_title: blog.title(),
blog_title: blog.title(),
blog_description: blog.description(),
posts: result.entries,
base_path: blog.base_path(),
page: result.page,
total_pages: result.total_pages
)
end
def show(conn, %{"slug" => slug}) do
blog = conn.assigns.blog
post = blog.get_post!(slug)
render(conn, :show,
page_title: post.title,
post: post,
base_path: blog.base_path()
)
end
def tag(conn, %{"tag" => tag}) do
blog = conn.assigns.blog
posts = blog.posts_by_tag(tag)
render(conn, :tag,
page_title: "#{blog.title()}#{tag}",
blog_title: blog.title(),
tag: tag,
posts: posts,
base_path: blog.base_path()
)
end
defp resolve_blog(%{params: %{"blog_id" => "engineering"}} = conn, _opts),
do: assign(conn, :blog, Firehose.EngineeringBlog)
defp resolve_blog(%{params: %{"blog_id" => "releases"}} = conn, _opts),
do: assign(conn, :blog, Firehose.ReleaseNotes)
defp resolve_blog(conn, _opts) do
conn
|> put_status(:not_found)
|> put_view(FirehoseWeb.ErrorHTML)
|> render(:"404")
|> halt()
end
defp parse_page(nil), do: 1
defp parse_page(str) do
case Integer.parse(str) do
{page, ""} when page > 0 -> page
_ -> 1
end
end
end