从没有ID Capybara的下拉菜单中选择元素

问题描述

我试图使用水豚（红宝石绑定）从没有id或唯一类的下拉列表中选择一个项目，但我似乎无法这样做。

I am trying to use capybara (ruby bindings) to select an item from a dropdown that does not have an id or unique class, but I seem to be unable to do so.

有问题的选择框如下所示：

The select box in question looks like this:

<select data-bind="options: environments, optionsText: 'name', value: selectedEnvironment,   optionsCaption: 'Choose...'" class="form-control">

试着做：

Trying to do a:

select("option",:from "#panel > div.panel-body > form > div:nth-child(1) > select")

不起作用，但我可以使用

does not work, but I am able to find the select field using a

page.find("#panel > div.panel-body > form > div:nth-child(1) > select")

文档说select方法需要选择框的id，name或label，但肯定必须有一种方法从比这更具体的下拉列表中选择一些内容。除了select（）之外，还有其他的方法可以使用吗？还是我必须返回使用纯硒？

The documentation says that the select method expects an id, name or label of the select box, but surely there must be a way of selecting something from a dropdown that is more specific than this. Is there another method I can use other than select() or do I have to go back to using pure selenium?

推荐答案

如果您想更多地控制您选择的选项，您需要：

If you want more control over which option you select, you will need to:

1. 找到选项元素（使用 find ， all ，等等）


2. 使用 select_option 方法

1. Find the option element (using find, all, etc)
2. Use the select_option method

For example, if you wanted to just select the first option:

option = page.first("#panel > div.panel-body > form > div:nth-child(1) > select option")
option.select_option

或者如果您想选择最后一个：

Or if you wanted to select the last:

options = page.all("#panel > div.panel-body > form > div:nth-child(1) > select option")
options[-1].select_option

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