48 lines
1.1 KiB
Elixir
48 lines
1.1 KiB
Elixir
defmodule JOL.Blog do
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alias JOL.Blog.Post
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alias JOL.Blog.Parser
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defmodule NotFoundError do
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defexception [:message, plug_status: 404]
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end
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use NimblePublisher,
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build: Post,
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from: Application.app_dir(:jol, "priv/posts/**/*.md"),
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parser: Parser,
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as: :posts
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@posts Enum.sort_by(@posts, & &1.date, {:desc, Date})
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@tags @posts |> Enum.flat_map(& &1.tags) |> Enum.uniq() |> Enum.sort()
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@spec all_posts() :: [
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%Post{
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author: String.t(),
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body: String.t(),
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date: DateTime.t(),
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draft: false | nil,
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slug: String.t(),
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tags: [String.t()],
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title: String.t()
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}
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]
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def all_posts, do: @posts
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def unique_tag_list, do: @tags
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def recent_posts(num \\ 10) do
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Enum.take(all_posts(), num)
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end
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def get_post_by_slug!(slug) do
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Enum.find(all_posts(), &(&1.slug == slug)) ||
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raise NotFoundError, "post ``slug=#{slug}` not found"
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end
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def get_posts_by_tag!(tag) do
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case Enum.filter(all_posts(), &(tag in &1.tags)) do
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[] -> raise NotFoundError, "posts tagged `#{tag}` not found"
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posts -> posts
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end
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end
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end
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