Allow changing hash type in admin

Author: AjaiKN

lib/password_example/user.ex

@@ -21,6 +21,11 @@ defmodule PasswordExample.User do
     |> Repo.insert()
   end
 
+  def delete_all do
+    users_changed()
+    Repo.delete_all(User)
+  end
+
   def get_all do
     Repo.all(User)
   end

lib/password_example_web/live/admin_live.ex

@@ -1,4 +1,19 @@
 defmodule PasswordExampleWeb.AdminLive do
   use PasswordExampleWeb, :live_view
+  # use Phoenix.HTML
   alias PasswordExampleWeb.UsersTableComponent
+  alias PasswordExample.{HashingAlgorithmChoice, User}
+
+  @impl true
+  def mount(_, _, socket) do
+    {:ok, assign(socket, hash_type: HashingAlgorithmChoice.get())}
+  end
+
+  @impl true
+  def handle_event("change_hash_type", %{"value" => hash_type}, socket) do
+    hash_type = String.to_atom(hash_type)
+    HashingAlgorithmChoice.set(hash_type)
+    User.delete_all()
+    {:noreply, assign(socket, hash_type: hash_type)}
+  end
 end

lib/password_example_web/live/admin_live.html.leex

@@ -1,3 +1,6 @@
 <h1>Admin</h1>
 
+<%= select :hash_type, :hash_type, HashingAlgorithmChoice.choices, value: @hash_type, phx_blur: "change_hash_type" %>
+<button type="button">Delete Users and Change Hash Type</button>
+
 <%= live_component @socket, UsersTableComponent, id: :users_table %>