如何設計rails time_select字段？

Question

我想將引導窗體控件類添加到rails time_select控件中。我嘗試這個，但它不起作用。

<%= time_select :open_time, :prompt , :default => {:hour => '9', :minute => '30'} , class: "form-control" %> 

Answer 1

的docs狀態：time_select(method, options = {}, html_options = {})

所以你的情況：<%= time_select :open_time, { prompt: {hour: '9', minute: '30'} }, { class: 'form-control' } %>

Answer 2

這裏是軌道的time_select方法。

def time_select(object_name, method, options = {}, html_options = {}) 
    Tags::TimeSelect.new(object_name, method, self, options, html_options).render 
end 

所以，從上面的方法，你可以使用html_options用於添加html屬性。

所以，你的代碼變得，

<%= time_select :open_time, :prompt , :default => {:hour => '9', :minute => '30'} , html_options: {class: "form-control"} %> 

Here is the reference