Ruby on Rails 3 =>;带有特殊字符的截断方法会抛出编码不兼容错误
我需要以下方面的帮助。我在这里得到一个包含特殊字符的字符串，例如 ë、é 等。我可以在我的视图中正确显示它们，但是一旦我调用 truncate 方法，它就会抛出以下错误：
不兼容的字符编码：ASCII- 8BIT 和 UTF-8
奇怪的是，当我检查截断字符串的编码时，它确实给了我 UTF-8，这正是我所需要的（并且 UTF-8 用于我的数据库）。
my_string_with_special_characters.truncate(35).encoding.inspect
=> UTF-8
但是当我打电话时： <%= my_string_with_special_characters.truncate(35) %>
=>不兼容的字符编码：ASCII-8BIT 和 UTF-8
我还尝试了 magic_encoding gem，它在前面添加了 magic 注释 我的所有控制器文件中都有“encoding：utf-8”，但我仍然遇到不兼容的字符编码错误。
如果有人知道如何解决这个问题，请告诉我。非常感谢。
亚历克斯
I need some help with the following. I got a string here which contains special characters e.g. ë, é etc. I can display them correctly in my view but once I call the truncate method, it throws the following error:
incompatible character encodings: ASCII-8BIT and UTF-8
The weird thing is that, when I inspect the encoding of the truncated string, it does give me UTF-8, which is what I need (and UTF-8 is used for my database).
my_string_with_special_characters.truncate(35).encoding.inspect
=> UTF-8
But is is when I call:
<%= my_string_with_special_characters.truncate(35) %>
=> incompatible character encodings: ASCII-8BIT and UTF-8
I have also tried the magic_encoding gem which prepends the magic comment
"encoding : utf-8" in all of my controller files, but I still got the incompatible character encoding error.
If anyone knows how to solve this, let me know. Much appreciated.
Alex
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尝试在文件的开头使用此字符串（对于 *.rb 文件）
Try to use this string in the beginning of you file (for *.rb files)