在Form Rails上添加占位符4

Question

我需要在正在编写的表单上添加一个占位符。 我尝试了以下操作以及其他一些失败的尝试：

<%= form_tag("/search", method: "get") do %>
    <%= label_tag(:address, "Address:", placeholder: '100 Brooklyn Ave Unit 3' ) %>
    <%= text_field_tag(:address) %>
    <%= label_tag(:citystatezip, "City and State OR ZIP:", placeholder: 'New York, NY') %>
    <%= text_field_tag(:citystatezip) %>
    <%= submit_tag("Enter Address") %>
  <% end %>

Answer 1

您不要在标签标记中放置占位符，而是应将其放置在输入字段中，在这种情况下为text_field_tag ：

<%= form_tag("/search", method: "get") do %>
  <%= label_tag(:address, "Address:") %>
  <%= text_field_tag(:address, nil, placeholder: '100 Brooklyn Ave Unit 3') %>
  <%= label_tag(:citystatezip, "City and State OR ZIP:") %>
  <%= text_field_tag(:citystatezip, nil, placeholder: 'New York, NY') %>
  <%= submit_tag("Enter Address") %>
<% end %>