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我使用PublicActivity寶石多態模型:https://github.com/pokonski/public_activity如何加入與使用PublicActivity寶石
我所用PublicActivity模型的跟蹤使用的列edition_id
。我想知道如何通過該列來擴大範圍,因爲它是多態關係。
如PublicActivity看起來像這樣:
PublicActivity::Activity.limit(50)
+----+--------------+----------------+----------+------------+--------------------+------------+--------------+----------------+---------------------------+---------------------------+
| id | trackable_id | trackable_type | owner_id | owner_type | key | parameters | recipient_id | recipient_type | created_at | updated_at |
+----+--------------+----------------+----------+------------+--------------------+------------+--------------+----------------+---------------------------+---------------------------+
| 1 | 42 | QuizMaster | 6 | User | quiz_master.update | {} | | | 2013-04-12 17:33:14 +0100 | 2013-04-12 17:33:14 +0100 |
| 2 | 25 | Place | 6 | User | place.update | {} | | | 2013-04-12 17:42:42 +0100 | 2013-04-12 17:42:42 +0100 |
| 3 | 25 | Event | 6 | User | event.update | {} | | | 2013-04-12 17:45:08 +0100 | 2013-04-12 17:45:08 +0100 |
| 4 | 20 | QuizMaster | 6 | User | quiz_master.update | {} | | | 2013-04-12 17:49:09 +0100 | 2013-04-12 17:49:09 +0100 |
| 5 | 20 | QuizMaster | 6 | User | quiz_master.update | {} | | | 2013-04-12 17:50:51 +0100 | 2013-04-12 17:50:51 +0100 |
+----+--------------+----------------+----------+------------+--------------------+------------+--------------+----------------+---------------------------+---------------------------+
凡edition_id是多態跟蹤的關係。
我想這樣做是這樣的:
PublicActivity::Activity.limit(50).includes(:trackable)# where trackable edition = 1
我不知道如何,甚至是否有可能加入或包括或預裝在多個「可跟蹤」類型多態模型。
你能解釋一下你試圖達到什麼嗎?最終發佈一個例子,說明你在開始時的所作所爲,以及最後想要的。另外,我沒有在轉儲的數據中看到'edition_id'列 – MrYoshiji
已更新爲嘗試並更具體地感謝... – ere
您可以發佈在執行'PublicActivity :: Activity.limit(10).joins時觸發的SQL查詢(:可追蹤)'請嗎? – MrYoshiji