Rails - 下拉菜单来执行控制器中的操作？ [英] Rails - Drop down menu to execute actions in the controller?

问题描述

我不确定我是否正确地表达了这个问题，但是如何创建一个下拉菜单，其中有一些可以在某个模型上创建新条目的选项？比方说，我有用户，费用和预算，在主页面上，我想通过从下拉菜单中选择该选项来添加新用户，新的费用或新的预算;而不是单击一个链接，将我带到new_user_path，new_expense_path或new_budget_path。

I'm not sure I phrased the question correctly, but how would I create a drop down menu with options to create a new entry on a certain model? Let's say for example I have User, Expense, and Budget, and on the main page I want the option to add a new user, new expense, or new budget by selecting that option from a drop down; instead of clicking a link that takes me to "new_user_path", "new_expense_path", or "new_budget_path".

推荐答案

使用jQuery，这是我会做的：

有一个哈希定义如下：

If you don't mind using jQuery, this is what I would do:
Have a hash defined something like:

@urls = {"Create New USer..." => new_user_url, "Create new expense", => new_expense_path}

然后在视图中有：

select_tag :create-model, options_for_select(@urls)

然后在application.js或类似的东西

Then in application.js or something like that

$('#create-model').change(function() {
  window.location = $(this).find('option:selected').val();
});

我没有尝试过，但它的工作没有太多的编辑。

I haven't tried it but it should work without too much editing.

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