0

我有一个表单，它从多个来源提取数据以智能地预填充表单中的一些默认值。I would like to also prefill a "visit_price" text box that will be editable when the "visit_type" drop down is selected. 此下拉列表是一个 grouped_collection_select，它通过名称搜索字段通过 jquery 进行调整（根据此和此railscast 视频）

下面是到目前为止的表单视图、模型关联和咖啡脚本。我还包括了相关的 html 输出。

编辑： 要清楚，我不确定如何获取与从下拉列表中选择的客户价格相关的价格。

访问块表单视图

<%= form_for(@visit_block) do |f| %>

  <div class="controls controls-row">
    <div class="form-inputs">
      <%= f.text_field :client_name, data: {autocomplete_source: current_user.clients.order(:last_name).map(&:last_name)} %>
    </div>
    <div class="form-inputs">
      <%= f.grouped_collection_select :visit_type, current_user.clients.order(:last_name), :client_prices, :last_name, :visit_type, :visit_type,  include_blank: true %>
      <%= f.text_field :visit_price %>
    </div>
    </div>
  <div class="form-actions">
    <%= f.button :submit %>
  </div>
<% end %>

楷模

class VisitBlock < ActiveRecord::Base
  attr_accessible :visit_price, :visit_type, :client_id

  belongs_to :client

  def client_name
    client.try(:last_name)
  end

  def client_name=(last_name)
    self.client = Client.find_by_last_name(last_name) if last_name.present?
  end

end


class Client < ActiveRecord::Base
  attr_accessible :active, :address_1, :address_2, :city, :email, :first_name, :last_name, :state, :user_id, :zip, :client_prices_attributes
  has_many :client_prices, :dependent => :destroy

end

class ClientPrice < ActiveRecord::Base
  attr_accessible :client_id, :price, :visit_type, :id, :default_price_id, :custom, :_destroy

  belongs_to :client
  belongs_to :default_price


end

Coffeescript（到目前为止）

jQuery ->
  $('#visit_block_client_name').autocomplete
    source: $('#visit_block_client_name').data('autocomplete-source')

  visit_types = $("#visit_block_visit_type").html()
  console.log visit_types
  $("#visit_block_client_name").keyup ->
    client_name = visit_block_client_name.value
    options = $(visit_types).filter("optgroup[label=" + client_name + "]").html()
    console.log options
    if options
      $("#visit_block_visit_type").html options
    else
      $("#visit_block_visit_type").empty()

  $("#ui-id-1").click ->
    client_name = visit_block_client_name.value
    options = $(visit_types).filter("optgroup[label=" + client_name + "]").html()
    console.log options
    if options
      $("#visit_block_visit_type").html options
    else
      $("#visit_block_visit_type").empty()

HTML 输出（到目前为止）

              <h1>New visit_block</h1>

<form accept-charset="UTF-8" action="/visit_blocks" class="new_visit_block" id="new_visit_block" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="&#x2713;" /><input name="authenticity_token" type="hidden" value="I4xbbvdswv18TtP4LWoZHo7udmABT0J/nvKEPLFfO5Q=" /></div>

  <div class="controls controls-row">
    <div class="form-inputs">
      <input data-autocomplete-source="[&quot;Client1&quot;,&quot;Client2&quot;,&quot;Client3&quot;]" id="visit_block_client_name" name="visit_block[client_name]" size="30" type="text" />
    </div>
    <div class="form-inputs">
      <select id="visit_block_visit_type" name="visit_block[visit_type]"><option value=""></option>
<optgroup label="Client1">
<option value="morning">morning</option>
<option value="Morning weekday visit">Morning weekday visit</option>
</optgroup>
<optgroup label="Client2">
<option value="evening">evening</option>
<option value="Morning weekday visit">Morning weekday visit</option>
</optgroup>
<optgroup label="Client3">
<option value="afternoon">afternoon</option>
<option value="Morning weekday visit">Morning weekday visit</option>
</optgroup>
</select>
      <input id="visit_block_visit_price" name="visit_block[visit_price]" size="30" type="text" />
    </div>
  </div>
  <div class="form-actions">
    <button name="button" type="submit">submit</button>
  </div>
</form>
4

2 回答 2

0

您在下拉列表中放置了一个钩子：

<select id="visit_block_visit_type" onchange="fill_in_price(this)"...>

假设您有一个将访问类型映射到价格的价格函数，您需要填写：

fill_in_price = ->
  $("#visit_block_visit_price").val(price($(this).val()))
于 2013-02-18T16:35:33.467 回答
0

除了 Viktor 的回答是正确的之外，我相信让 HTML 标记没有任何 javascript 代码会更干净。我会遵循这种方法： 

$('#visit_block_visit_type').change(function() {
  $("#visit_block_visit_price").val(price($(this).val()));
});

这是完全一样的事情。

于 2013-02-18T16:40:54.120 回答