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附加模式形式和增订
原标题:nested model form and update_attributes

我有一类项目和组别成员与控制人员之间的单向关系,更新功能如下:

@project = Project.find(params[:id])

@project.update_attributes(params[:project])        

现在,我想确定一些领域,在储蓄发生之前,这些领域没有为一些小组成员规定。 我不能像现在这样利用最新情况。

这样做的最佳方式是什么?

Thanks, Nicolas.

最佳回答

我将研究<代码>accepts_nested_attributes_for功能。 也许有这样的东西:

class Project < ActiveRecord::Base
  has_one :team
  accepts_nested_attributes_for :team

  # also this will be useful
  validates_associated :team
end

您将使用<代码>-for方法确定你的属性。 这可能看上去:

<% form_for(@project) do |p| %>
  <%= p.error_messages %>
  <!-- Project name -->
  <%= p.text_field :name %>

  <% f.fields_for(@project.team) do |t| %>
    <!-- Team Name -->
    <%= t.text_field :name %>
  <% end %>

  <%= f.submit  Create Project  %>
<% end %>

当您提交表格时,您将可打电话@project.update_attributes(params [:project],并将工作。 还可raise params.inspect,以了解如何封条。

希望这一帮助。

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