Phoenix - （ErlangError）erlang錯誤：「模塊無法加載」

Question

我有一個簡單的Phoenix Channel來處理消息的websockets。我嘗試添加一個模型到數據庫中的插入，當我在傳遞這些消息PARAMS正在此錯誤。

def handle_in("new:msg", msg, socket) do 
    message_params = %{"body" => msg["body"]} 
    changeset = Message.changeset(%Message{}, message_params) 

    case Repo.insert(changeset) do 
    {:ok, room} -> 
     broadcast! socket, "new:msg", %{user: msg["user"], body: msg["body"]} 
     {:reply, {:ok, %{msg: msg["body"]}}, assign(socket, :user, msg["user"])} 
    {:error, changeset} -> 
    end 
end 

這裏的錯誤。關於這可能是什麼的任何想法都非常值得歡迎。

Repo.insert(%Ecto.Changeset{action: nil, changes: %{body: "feaflje"}, constraints: [], errors: [], filters: %{}, model: %PulseApi.Message{__meta__: #Ecto.Schema.Metadata<:built>, body: nil, id: nil, inserted_at: nil, room: #Ecto.Association.NotLoaded<association :room is not loaded>, room_id: nil, updated_at: nil}, optional: [], opts: [], params: %{"body" => "feaflje"}, repo: nil, required: [:body], types: %{body: :string, id: :id, inserted_at: Ecto.DateTime, room_id: :id, updated_at: Ecto.DateTime}, valid?: true, validations: []}) 

Answer 1

我不得不將項目的名稱添加到正確的名稱空間Repo才能使其工作。

回購必須是ProjectName.Repo

case PulseApi.Repo.insert(changeset) do 
    {:ok, room} -> 
    broadcast! socket, "new:msg", %{user: msg["user"], body: msg["body"]} 
    {:reply, {:ok, %{msg: msg["body"]}}, assign(socket, :user, msg["user"])} 
    {:error, changeset} -> 
end