Question

在mongoid中使用has_many时，我无法获取表单工作宽度集合

模型行：

int indexmyNumber = eintraegeListe.FindIndex(5, 10000, x => x.Contains("MyNumberMarker") && regexComplete.IsMatch(x));

模特团结：

if (indexmyNumber >= 0)
{
    int myNumber = 0;
    string myNumberString = regexComplete.Match(eintraegeListe[indexmyNumber]).Groups["number"].Value;
    if (Int32.TryParse(myNumberString, out myNumber))
    {
        return myNumber;
    }
}

我的表格是：

class Line
  include Mongoid::Document
  include Mongoid::Timestamps

  field :observations
  field :position, :type => Integer
  field :status, :type => Integer

  has_many :unities, :inverse_of => :unity
end

我收到此错误：未定义的方法`unity_id＆＃39;对于＃

Answer 1

您的表单有问题：

<%= bootstrap_form_for @line do |f| %>
    <div class="col-md-2">      
        <%= f.collection_select :unity_id, Unity.all, :id, :title %>
    </div>
<% end %>

@line有很多unities，它没有unity_id字段。您也未在Line model中定义title字段。

也许你可以这样做：

<%= bootstrap_form_for @unity do |f| %>
    <div class="col-md-2">      
        <%= f.collection_select :line_id, Line.all, :id, :owner_name %>
    </div>
<% end %>

Mongoid 5.0 - Rails 4 - 集合表单has_many

1 个答案: