ruby-on-rails - Could use some advice on making a calculation page in ruby on rails

Question

I have studied rails for some time now and everywhere I look, the books teach you how to create blog like applications.

But now I would like to create an application, where you have for instance a form to choose how many calculations I want to do and a form to choose what type of calculations should they be. After that I would insert numbers into newly created forms and the app would calculate them and print the anwer.

Now I really don't see, how I can do this without putting the numbers inserted into a DB and then calculating with them, printing the answer and then deleting the DB entries. Seems like a very clumsy way doing it.

Anyone have some advice on how to approach this problem?

Answer 1

我看到的方式是：您创建一个包含可能计算选项的下拉列表，并使用 javascript（或 ajax，如果它很复杂）对其进行增强以插入所需的字段。然后，您将所有数据保存在一个表格中，将其发送到操作中，进行计算并显示它们。