fuzzy searching functionality backend

.iex.exs

@@ -0,0 +1,5 @@
+#  log lines will bump the console prompt down.
+if function_exported?(Mix, :__info__, 1) and Mix.env() == :dev do
+  # if statement guards you from running it in prod, which could result in loss of logs.
+  Logger.configure_backend(:console, device: Process.group_leader())
+end

lib/accumulator/notes.ex

@@ -70,6 +70,17 @@ defmodule Accumulator.Notes do
     |> Repo.delete()
   end
 
+  def search(search_term) do
+    like = "%#{search_term}%"
+
+    query =
+      from(n in Note,
+        where: like(n.text, ^like)
+      )
+
+    Repo.all(query) |> group_and_sort_notes()
+  end
+
   defp group_and_sort_notes(notes) do
     notes
     |> Enum.group_by(fn %{inserted_at: inserted_at} ->

priv/repo/migrations/20240505175513_notes_search.exs

@@ -0,0 +1,13 @@
+defmodule Accumulator.Repo.Migrations.NotesSearch do
+  use Ecto.Migration
+
+  def change do
+    execute("""
+    CREATE EXTENSION IF NOT EXISTS pg_trgm;
+    """)
+
+    execute("""
+      CREATE INDEX notes_searchable_idx ON notes USING GIN (text gin_trgm_ops);
+    """)
+  end
+end