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