Rename songs_number to songs_count and refactor error messages

lib/live_beats/accounts/user.ex

@@ -15,7 +15,7 @@ defmodule LiveBeats.Accounts.User do
     field :active_profile_user_id, :id
     field :avatar_url, :string
     field :external_homepage_url, :string
-    field :songs_number, :integer
+    field :songs_count, :integer
 
     has_many :identities, Identity
 

lib/live_beats/media_library.ex

@@ -149,6 +149,9 @@ defmodule LiveBeats.MediaLibrary do
 
   def import_songs(%Accounts.User{} = user, changesets, consume_file)
       when is_map(changesets) and is_function(consume_file, 2) do
+    # refetch user for fresh song count
+    user = Accounts.get_user!(user.id)
+
     multi =
       Enum.reduce(changesets, Ecto.Multi.new(), fn {ref, chset}, acc ->
         chset =
@@ -158,22 +161,21 @@ defmodule LiveBeats.MediaLibrary do
 
         Ecto.Multi.insert(acc, {:song, ref}, chset)
       end)
-      |> Ecto.Multi.run(:valid_songs_number, fn _repo, changes ->
-        user = Accounts.get_user!(user.id)
+      |> Ecto.Multi.run(:valid_songs_count, fn _repo, changes ->
         new_songs_count = changes |> Enum.filter(&match?({{:song, _ref}, _}, &1)) |> Enum.count()
-        validate_songs_limit(user.songs_number, new_songs_count)
+        validate_songs_limit(user.songs_count, new_songs_count)
       end)
       |> Ecto.Multi.update_all(
-        :update_songs_number,
-        fn %{valid_songs_number: new_songs_count} ->
+        :update_songs_count,
+        fn %{valid_songs_count: new_count} ->
           from(u in Accounts.User,
-            where: u.id == ^user.id and u.songs_number == ^user.songs_number,
-            update: [inc: [songs_number: ^new_songs_count]]
+            where: u.id == ^user.id and u.songs_count == ^user.songs_count,
+            update: [inc: [songs_count: ^new_count]]
           )
         end,
         []
       )
-      |> Ecto.Multi.run(:is_songs_number_updated?, fn _repo, %{update_songs_number: result} ->
+      |> Ecto.Multi.run(:is_songs_count_updated?, fn _repo, %{update_songs_count: result} ->
         case result do
           {1, _} -> {:ok, user}
           _ -> {:error, :invalid}
@@ -195,7 +197,7 @@ defmodule LiveBeats.MediaLibrary do
         failed_op =
           case failed_op do
             {:song, _number} -> :invalid_song
-            :is_songs_number_updated? -> :invalid
+            :is_songs_count_updated? -> :invalid
             failed_op -> failed_op
           end
 
@@ -346,17 +348,16 @@ defmodule LiveBeats.MediaLibrary do
     Ecto.Multi.new()
     |> Ecto.Multi.delete(:delete, song)
     |> Ecto.Multi.update_all(
-        :update_songs_number,
+      :update_songs_count,
       fn _ ->
         from(u in Accounts.User,
           where: u.id == ^song.user_id,
-            update: [inc: [songs_number: -1]]
+          update: [inc: [songs_count: -1]]
         )
       end,
       []
     )
     |> Repo.transaction()
-
   end
 
   def change_song(song_or_changeset, attrs \\ %{})

lib/live_beats_web/live/song_live/upload_form_component.ex

@@ -56,12 +56,8 @@ defmodule LiveBeatsWeb.SongLive.UploadFormComponent do
            |> put_flash(:info, "#{map_size(songs)} song(s) uploaded")
            |> push_redirect(to: profile_path(current_user))}
 
-        {:error, error} ->
-          updated_socket =
-            socket
-            |> update(:error_messages, &Enum.take(&1 ++ [error], -10))
-
-          {:noreply, updated_socket}
+        {:error, {failed_op, reason}} ->
+          {:noreply, put_error(socket, {failed_op, reason})}
       end
     end
   end
@@ -147,23 +143,29 @@ defmodule LiveBeatsWeb.SongLive.UploadFormComponent do
     end)
   end
 
-  defp file_error(%{kind: :dropped} = assigns), do: ~H|dropped (exceeds limit of 10 files)|
-  defp file_error(%{kind: :too_large} = assigns), do: ~H|larger than 10MB|
-  defp file_error(%{kind: :not_accepted} = assigns), do: ~H|not a valid MP3 file|
-  defp file_error(%{kind: :too_many_files} = assigns), do: ~H|too many files|
+  defp file_error(%{kind: :dropped} = assigns),
+    do: ~H|<%= @label %>: dropped (exceeds limit of 10 files)|
+
+  defp file_error(%{kind: :too_large} = assigns),
+    do: ~H|<%= @label %>: larger than 10MB|
+
+  defp file_error(%{kind: :not_accepted} = assigns),
+    do: ~H|<%= @label %>: not a valid MP3 file|
+
+  defp file_error(%{kind: :too_many_files} = assigns),
+    do: ~H|too many files|
 
   defp file_error(%{kind: :songs_limit_exceeded} = assigns),
     do: ~H|You exceeded the limit of songs per account|
 
-  defp file_error(%{kind: :invalid} = assigns), do: ~H|Something went wrong|
+  defp file_error(%{kind: :invalid} = assigns),
+    do: ~H|Something went wrong|
 
-  defp file_error(%{kind: %Ecto.Changeset{} = changeset} = assigns)  do
-    ~H|<%=  LiveBeatsWeb.ErrorHelpers.translate_changeset_errors(@kind) %>|
-  end
+  defp file_error(%{kind: %Ecto.Changeset{}} = assigns),
+    do: ~H|<%= @label %>: <%=  LiveBeatsWeb.ErrorHelpers.translate_changeset_errors(@kind) %>|
 
-  defp file_error(%{kind: {msg, opts}} = assigns) when is_binary(msg) and is_list(opts) do
-    ~H|<%= LiveBeatsWeb.ErrorHelpers.translate_error(@kind) %>|
-  end
+  defp file_error(%{kind: {msg, opts}} = assigns) when is_binary(msg) and is_list(opts),
+    do: ~H|<%= @label %>: <%= LiveBeatsWeb.ErrorHelpers.translate_error(@kind) %>|
 
   defp put_stats(socket, entry_ref, %MP3Stat{} = stat) do
     if changeset = get_changeset(socket, entry_ref) do
@@ -203,11 +205,15 @@ defmodule LiveBeatsWeb.SongLive.UploadFormComponent do
     socket
     |> cancel_upload(:mp3, entry.ref)
     |> drop_changeset(entry.ref)
-    |> update(:error_messages, &Enum.take(&1 ++ [{entry.client_name, reason}], -10))
+    |> put_error({entry.client_name, reason})
   end
 
   defp get_entry!(socket, entry_ref) do
     Enum.find(socket.assigns.uploads.mp3.entries, fn entry -> entry.ref == entry_ref end) ||
       raise "no entry found for ref #{inspect(entry_ref)}"
   end
+
+  defp put_error(socket, {label, msg}) do
+    update(socket, :error_messages, &Enum.take(&1 ++ [{label, msg}], -10))
+  end
 end

lib/live_beats_web/live/song_live/upload_form_component.html.heex

@@ -30,8 +30,8 @@
                     </h3>
                     <div class="mt-2 text-sm text-red-700">
                       <ul role="list" class="list-disc pl-5 space-y-1">
-                        <%= for {client_name, kind} <- @error_messages do %>
-                          <li><%= client_name %>: <.file_error kind={kind} /></li>
+                        <%= for {label, kind} <- @error_messages do %>
+                          <li><.file_error label={label} kind={kind} /></li>
                         <% end %>
                       </ul>
                     </div>

priv/repo/migrations/20211117174157_add_songs_number_to_users.exs

@@ -3,18 +3,18 @@ defmodule LiveBeats.Repo.Migrations.AddSongsNumberToUsers do
 
   def up do
     alter table(:users) do
-      add :songs_number, :integer, null: false, default: 0
+      add :songs_count, :integer, null: false, default: 0
     end
 
     execute("
-      UPDATE users set songs_number =
+      UPDATE users set songs_count =
         (SELECT count (*) from songs
           where songs.user_id = users.id)")
   end
 
   def down do
     alter table(:users) do
-      remove :songs_number
+      remove :songs_count
     end
   end
 end