我有一个充满值的“房间类型”表,我想这样做,当用户从collection_select中选择房间类型时,表单的其余部分会根据房间类型的值进行更新,我可以检测到使用javascript通过$('#room_roomtype_id')更改选择。更改以及通过$('#room_roomtype_id:selected')。text()选择了哪种房型,但我不知道,我的搜索时间一直无效,然后,如何使用房间类型表中的数据更新其他表单字段。
这是我的表单代码:
<%= form_for @room do |f| %>
<% if @room.errors.any? %>
<div class="error_messages">
<h2>Form is invalid</h2>
<ul>
<% for message in @room.errors.full_messages %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<p id="roomtypes", data-url="<%= url_for :controller => 'rooms', :action => 'roomtypeupdate' %>">
<%= f.label :roomtype_id, "Room type" %><br />
<%= f.collection_select :roomtype_id, Roomtype.order(:name), :id, :name, include_blank: true %>
</p>
<p>
<%= f.label :number, "Room number" %><br />
<%= f.text_field :number %>
</p>
<p>
<%= f.label :maxcap, "Capacity" %><br />
<%= f.number_field :maxcap %>
</p>
<p>
<%= f.label :size, "Size" %><br />
<%= f.number_field :size %>
</p>
<p>
<%= f.label :description, "Description" %><br />
<%= f.text_area :description %>
</p>
<p>
<%= f.label :singlebeds, "Number of single beds" %><br />
<%= f.number_field :singlebeds %>
</p>
<p>
<%= f.label :bathrooms, "Number of bathrooms" %><br />
<%= f.number_field :bathrooms %>
</p>
<br />
<p class="button"><%= f.submit %></p>
<% end %>
答案 0 :(得分:0)
这样的事情应该有效:
$('#room_roomtype_id').on('change', function () {
// URL for the sake of example - yours will differ
$.get('/rooms/' + this.value + '.json', function (response) {
// dummy response for the sake of example
response = {
"number": "5A",
"maxcap": "10"
};
$.each(response, function (key, value) {
$('[name="room[' + key + ']"]').val(value);
});
});