为什么我会收到“无法将符号转换为哈希值”的信息在 Rails 3 中使用 helper inside helper 时？
这是我的代码：
def tiny_user_image(user)
8 if user_signed_in?
9
10 gravatar_image_tag(user.email, :gravatar => :identicon, :size => 20)
11
12
13 elsif user_signed_in? && current_user.friends.include?(user)
14
15
16
17 else #user is not signed in
18
19 gravatar_image_tag(user.email, :gravatar => :identicon, :size => 20)
20 end
21 end
22
23 end
“gravatar_image_tag”是这个助手：https://github.com/mdeering/gravatar_image_tag
我从部分调用tiny_user_image：
1 = div_for review do
2 = link_to review.title, review_path(review)
3 = tiny_user_image(review.user)
我不知道为什么在传递对象User时在tiny_user_image处收到错误。当我在 IRB 中使用调试器时，它看起来很好......
谢谢！
This is my code:
def tiny_user_image(user)
8 if user_signed_in?
9
10 gravatar_image_tag(user.email, :gravatar => :identicon, :size => 20)
11
12
13 elsif user_signed_in? && current_user.friends.include?(user)
14
15
16
17 else #user is not signed in
18
19 gravatar_image_tag(user.email, :gravatar => :identicon, :size => 20)
20 end
21 end
22
23 end
'gravatar_image_tag' is this helper: https://github.com/mdeering/gravatar_image_tag
I call tiny_user_image from the partial:
1 = div_for review do
2 = link_to review.title, review_path(review)
3 = tiny_user_image(review.user)
I don't know why I get an error at tiny_user_image passing the object User. When I use debugger in IRB, it looks fine....
thank you!
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您收到此错误是因为您在传递给 gravatar_image_tag() 的哈希中分配了一个符号作为 :gravatar 键的值。
在 github 上的示例中，您可以看到它需要一个哈希值
You are getting this error because you are assigning a symbol as the value for the :gravatar key in the hash you are passing to gravatar_image_tag().
In the example on github you can see that it is expecting a hash there