fix: Add indices to some tables

lib/bdfr_browser/http/plug.ex

@@ -44,8 +44,7 @@ defmodule BdfrBrowser.HTTP.Plug do
 
     tpl_args = [
       subreddit: subreddit,
-      dates: subreddit_record |> Post.date_listing() |> Repo.all(),
-      statistics: subreddit |> Subreddit.statistics() |> Repo.all()
+      dates: subreddit_record |> Post.date_listing() |> Repo.all()
     ]
 
     content = render_template("subreddit", tpl_args)
@@ -95,8 +94,7 @@ defmodule BdfrBrowser.HTTP.Plug do
 
     tpl_args = [
       subreddit: subreddit_names,
-      dates: subreddit_records |> Post.date_listing() |> Repo.all(),
-      statistics: subreddit_names |> Subreddit.statistics() |> Repo.all()
+      dates: subreddit_records |> Post.date_listing() |> Repo.all()
     ]
 
     content = render_template("subreddit", tpl_args)

lib/bdfr_browser/subreddit.ex

@@ -22,16 +22,4 @@ defmodule BdfrBrowser.Subreddit do
   def names_without(hidden) do
     from(s in __MODULE__, select: s.name, where: s.name not in ^hidden, order_by: [asc: fragment("lower(?)", s.name)])
   end
-
-  def statistics(subreddit) when is_binary(subreddit), do: statistics([subreddit])
-
-  def statistics(subreddits) when is_list(subreddits) do
-    from(s in __MODULE__,
-      join: p in assoc(s, :posts),
-      left_join: c in assoc(p, :comments),
-      select: {s.name, count(p.id), count(c.id)},
-      where: s.name in ^subreddits,
-      group_by: [s.name]
-    )
-  end
 end

priv/repo/migrations/20231024085825_add_indices_to_multiple_tables.exs

@@ -0,0 +1,10 @@
+defmodule BdfrBrowser.Repo.Migrations.AddIndicesToMultipleTables do
+  use Ecto.Migration
+
+  def change do
+    create index("posts", :author)
+    create index("posts", :posted_at)
+    create index("comments", :author)
+    create index("chats", :accounts)
+  end
+end

priv/templates/http/subreddit.eex

@@ -55,12 +55,4 @@
       <% end %>
     <% end %>
   </div>
-
-  <div class="d-grid gap-2 col-12 mx-auto">
-    <p class="text-secondary">
-      <%= for {name, post_count, comment_count} <- statistics do %>
-        <%= name %>: <%= post_count %> Posts; <%= comment_count %> Comments<br />
-      <% end %>
-    </p>
-  </div>
 </div>

priv/templates/http/subreddit_posts.eex

@@ -31,7 +31,7 @@
               <%= BdfrBrowser.RenderUtils.post_type_icon(post.url) %>
               <%= post.num_comments %> comment(s)
               -
-              <%= BdfrBrowser.RenderUtils.format_date(post.posted_at, :short) %></small>
+              <%= BdfrBrowser.RenderUtils.format_date(post.posted_at, :long) %></small>
           </h6>
         </div>
       </div>