while running rails出现错误：post_comment_url未能生成

Question

我在执行过程中遇到的错误是 post_comment_url无法从{：action =>“show”，：controller =>“comments”，：post_id =>＃ ：：id =>＃}，expected：{：action =>“show”，：controller =>“comments”}，diff：{：post_id =>＃，：id =>＃}

Answer 1

post_comment_url应该接收两个参数：post id和comment id，如：

post_comment_url(@post, @comment)