簡單的活動記錄查詢

Question

我覺得這個問題很容易，但是也許我只是想得太過分了。

我有一個Active Record查詢，看起來像這樣：

@activities = PublicActivity::Activity.includes(:owner, :trackable).where(owner_id: current_user.followed_users, owner_type: "User", kind: "Activity")

這很好用，但是我想將current_user添加為可能的:owner 。 因此，我嘗試了許多選擇，包括：

@activities = PublicActivity::Activity.includes(:owner, :trackable).where(owner_id: [[current_user.followed_users], [current_user]], owner_type: "User", kind: "Activity")
@activities = PublicActivity::Activity.includes(:owner, :trackable).where(owner_id: [current_user.followed_users, current_user], owner_type: "User", kind: "Activity")

但是我遇到了類似的錯誤：

Cannot visit User::ActiveRecord_Associations_CollectionProxy

任何人都可以發現我犯的錯誤...謝謝

Answer 1

current_user.followed_users是一個ActiveRecord_Associations_CollectionProxy ，但您只需要ID，就像這樣current_user.followed_users.collect(&:id)

使用您的示例，完整查詢如下所示：

@activities = PublicActivity::Activity.includes(:owner, :trackable).where(owner_id: [[current_user.followed_users.collect(&:id)], [current_user.id]], owner_type: "User", kind: "Activity")

Answer 2

您可以將current_user追加到followed_users數組中。 嘗試這個：

allowed_users = current_user.followed_users << current_user
@activities = PublicActivity::Activity.includes(:owner, :trackable).where(owner_id: allowed_users, owner_type: "User", kind: "Activity")

或者，您可以僅將current_user作為一個元素數組添加到其followed_users 。

allowed_users = current_user.followed_users + [current_user]
@activities = PublicActivity::Activity.includes(:owner, :trackable).where(owner_id: allowed_users, owner_type: "User", kind: "Activity")