Add models and migrations

lib/nulla_web/controllers/note_controller.ex

@@ -0,0 +1,62 @@
+defmodule NullaWeb.NoteController do
+  use NullaWeb, :controller
+
+  alias Nulla.Notes
+  alias Nulla.Models.Note
+
+  def index(conn, _params) do
+    notes = Notes.list_notes()
+    render(conn, :index, notes: notes)
+  end
+
+  def new(conn, _params) do
+    changeset = Notes.change_note(%Note{})
+    render(conn, :new, changeset: changeset)
+  end
+
+  def create(conn, %{"note" => note_params}) do
+    case Notes.create_note(note_params) do
+      {:ok, note} ->
+        conn
+        |> put_flash(:info, "Note created successfully.")
+        |> redirect(to: ~p"/notes/#{note}")
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        render(conn, :new, changeset: changeset)
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    note = Notes.get_note!(id)
+    render(conn, :show, note: note)
+  end
+
+  def edit(conn, %{"id" => id}) do
+    note = Notes.get_note!(id)
+    changeset = Notes.change_note(note)
+    render(conn, :edit, note: note, changeset: changeset)
+  end
+
+  def update(conn, %{"id" => id, "note" => note_params}) do
+    note = Notes.get_note!(id)
+
+    case Notes.update_note(note, note_params) do
+      {:ok, note} ->
+        conn
+        |> put_flash(:info, "Note updated successfully.")
+        |> redirect(to: ~p"/notes/#{note}")
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        render(conn, :edit, note: note, changeset: changeset)
+    end
+  end
+
+  def delete(conn, %{"id" => id}) do
+    note = Notes.get_note!(id)
+    {:ok, _note} = Notes.delete_note(note)
+
+    conn
+    |> put_flash(:info, "Note deleted successfully.")
+    |> redirect(to: ~p"/notes")
+  end
+end