44 lines
1.1 KiB
Elixir
44 lines
1.1 KiB
Elixir
defmodule BdfrBrowser.Comment do
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use Ecto.Schema
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import Ecto.Query, only: [from: 2]
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alias BdfrBrowser.{Post, Repo}
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@primary_key {:id, :string, autogenerate: false}
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@foreign_key_type :string
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schema "comments" do
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field :author, :string
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field :body, :string
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field :score, :integer
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field :posted_at, :utc_datetime
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belongs_to :post, Post
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belongs_to :parent, __MODULE__
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has_many :children, __MODULE__, foreign_key: :parent_id
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end
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def fetch_children!(comment) do
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Repo.preload(comment, children: from(c in __MODULE__, order_by: [asc: c.posted_at])).children
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end
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def by_author(author) do
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from(c in __MODULE__,
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join: p in assoc(c, :post),
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join: s in assoc(p, :subreddit),
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select: %{
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body: c.body,
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children: [],
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posted_at: c.posted_at,
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subreddit: s.name,
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post_id: p.id,
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post_title: p.title,
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post_date: fragment("to_char(?, 'YYYY-MM')", p.posted_at)
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},
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where: c.author == ^author,
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order_by: [desc: c.posted_at],
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group_by: [c.id, p.id, s.name]
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)
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end
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end
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