Question

我有一个表单，其中序列化字段的值由一系列下拉框选择。我已经在这个问题上苦苦挣扎了好几个小时，试图让它很好地工作。有几个问题。

TypeError (expected Hash (got String) for param 'rankings'。
如果记录是新的，则将此表单发送到create的最佳方式是什么，或update如果存在？（显示当前实施）。

公司指定了多个标准，例如“整体”或“成本”或“绩效”。这些标准中的每一个都有这种形式的下拉列表。用户为每个条件选择他/她的排名，结果保存在@ review.rankings（serialized）中。

    # controller
    @review = Review.find_or_initialize_by_user_id(current_user.id)
    @rankings = @review.rankings # if @review exists, these contain this user's current choices
    @criteria = @company.criteria # each has its own dropdown

    # show.html.erb
    <% @review.id.blank? ? (action = "create") : (action = "update") %>
    <%= form_for @review, :as => :review, :url => params.merge(:controller => "reviews", :action => action, :id => @review.try(:id)) do |f| %>
      <%= f.error_messages %>
      <% @criteria.each do |label| %>
        <%= f.fields_for :rankings do |f| %>
            <%= f.text_field label, :value => @review.rankings.present? ? (@rankings[label]) : nil %>
            <%= label %>:
            <select id="review_rankings_<%= label %>" name="review[rankings][<%= label %>]">
                <option value="0" <%= @rankings.present? && @rankings[label] == "0" ? "selected='selected'" : nil %>>Very poor</option>
                <option value="1" <%= @rankings.present? && @rankings[label] == "1" ? "selected='selected'" : nil %>>Poor</option>
                <option value="2" <%= @rankings.blank? || @rankings[label] == "2" ? "selected='selected'" : nil %>>Average</option>
                <option value="3" <%= @rankings.present? && @rankings[label] == "3" ? "selected='selected'" : nil %>>Good</option>
                <option value="4" <%= @rankings.present? && @rankings[label] == "4" ? "selected='selected'" : nil %>>Very Good</option>
                <option value="5" <%= @rankings.present? && @rankings[label] == "5" ? "selected='selected'" : nil %>>Exceptional</option>
            </select>
        <% end %>
      <% end %>
      <%= submit_tag "Update", :class=>"greenButton" %>
    <% end %>

Html来源

<form accept-charset="UTF-8" action="/reviews/21?ci=21&amp;jd=37&amp;rank=1&amp;count=1&amp;key=104fdf0f23712e69e0e7acd507ea4eeb&amp;mkey=e6ec509f1f13ed00f9e0b07b2daeced6" class="review_edit" id="review_edit" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="&#x2713;" /><input name="_method" type="hidden" value="put" /><input name="authenticity_token" type="hidden" value="S89rpLRSqye18RAD3cjdAD83Vvn0oFubooMhA7AX7Ms=" /></div> 


  performance:
<select id="review_rankings_performance" name="review[rankings][performance]"> 
        <option value="0" >Very poor</option> 
        <option value="1" >Poor</option> 
        <option value="2" >Average</option> 
        <option value="3" >Good</option> 
        <option value="4" >Very Good</option> 
        <option value="5" >Exceptional</option> 
  </select> 
  <input class="greenButton" name="commit" type="submit" value="Update" /> 
</form>

无法序列化以在表单中工作

Html来源

0 个答案: