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36 lines
1 KiB
Elixir
36 lines
1 KiB
Elixir
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defmodule PhilomenaWeb.LoadPostPlug do
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alias Philomena.Posts.Post
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alias Philomena.Repo
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import Plug.Conn, only: [assign: 3]
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import Canada.Can, only: [can?: 3]
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import Ecto.Query
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def init(opts),
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do: opts
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def call(%{assigns: %{topic: topic}} = conn, opts) do
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param = Keyword.get(opts, :param, "post_id")
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show_hidden = Keyword.get(opts, :show_hidden, false)
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Post
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|> where(topic_id: ^topic.id, id: ^to_string(conn.params[param]))
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|> preload([topic: :forum, user: [awards: :badge]])
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|> Repo.one()
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|> maybe_hide_post(conn, show_hidden)
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end
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defp maybe_hide_post(nil, conn, _show_hidden),
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do: PhilomenaWeb.NotFoundPlug.call(conn)
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defp maybe_hide_post(%{hidden_from_users: false} = post, conn, _show_hidden),
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do: assign(conn, :post, post)
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defp maybe_hide_post(post, %{assigns: %{current_user: user}} = conn, show_hidden) do
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case show_hidden or can?(user, :show, post) do
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true -> assign(conn, :post, post)
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false -> PhilomenaWeb.NotAuthorizedPlug.call(conn)
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end
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end
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end
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