Ruby - 数组的输入集

Question

我正在尝试在表单中创建一组动态输入，只从一个开始，您可以使用添加/删除按钮添加或删除它们。然后在提交表单时，它将输入的值转换为哈希值，然后将该哈希值转换为字符串以进行存储。我真的不知道从哪里开始。所以任何提示都会有所帮助。

如果使用javascript会有帮助，我可以走那条路，但我不知道如何制作javascript和ruby说话。

Answer 1

Depending on your use-case, there are a few options you might want to use. Since you've tagged this with rails, I'm assuming you have access to JQuery. Here's one (very simple) example of how you might go about adding fields to the page dynamically using it:

https://jsfiddle.net/3Lyvw0jm/

If you plan on storing these fields in one of your models, you may want to take a look at implementing nested attributes.