By using "where" you can filter records,use ... Rails Joins Association Condition.一个pythonç¨‹ĺş ĺ'˜çš„rubyä¸‰ć—Ľć¸¸ďźˆäş”ďź‰ â€”â€”é‡ ćž„ďźˆä¸€ďź‰. ruby ...
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