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的陣列ActiveRecord的許多一對多查詢我有三個機型AR與IDS
class MessageThread < ActiveRecord::Base
has_many :message_threads_users, dependent: :destroy
has_many :users, through: :message_threads_users
end
class User < ActiveRecord::Base
has_many :message_threads_users, dependent: :destroy
has_many :message_threads, through: :message_threads_users
end
class MessageThreadsUser < ActiveRecord::Base
belongs_to :message_thread
belongs_to :user
end
鑑於user_ids數組(即[5, 6, 7]
)我要尋找或創造一個message_thread對象。我似乎無法找到在ActiveRecord Query API中執行此操作的好方法。有沒有辦法?
預先感謝您!