如何从变量中分配列名

Question

我想为表格列分配一个值。选择的列需要基于变量。你是怎么做到的？

如果@language = "german" 比我想分配的@new_word.german = string

@new_word = Word.new
@new_word.german = string
@new_word.save

那么我将如何使用@language 分配 .german？ @new_word.@language :/

Answer 1

x = "german"
@new_word.send("#{x}=", "some value")
@new_word[x] = "some value" # may end up skipping overrides/callbacks, etc though. check the docs.