通过定义方法创建关联

发布于 2024-11-03 16:46:30 字数 308 浏览 1 评论 0原文

您好，我在将此关联定义为 has_many 时遇到问题，我想这样做，以便使 Accepts_nested_attributes_for 正常工作。

def work_days
  work_days = WorkDay.user_id_equals(self.user_id).company_id_equals(self.company_id)
end

accepts_nested_attributes_for :work_days

什么是好的解决方案？无论如何我可以说这是一个协会吗？

-- 导轨 3.0.7

原文

Hi I'm having trouble defining this association as a has_many which I would like to do in order to get accepts_nested_attributes_for to work.

def work_days
  work_days = WorkDay.user_id_equals(self.user_id).company_id_equals(self.company_id)
end

accepts_nested_attributes_for :work_days

What would be a good solution? Is there anyway I can just say that this is an association?

-- Rails 3.0.7

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渔村楼浪 2024-11-10 16:46:30

首先，我会像这样编写 work_days 方法：

def work_days
  WorkDay.where(:user_id => user_id, :company_id => company_id)
end

接下来，accepts_nested_attributes_for 实际上仅适用于真实关联，因此我会定义一个这样的方法：（

def work_days=(work_day_params)
  # iterate over work_day_params and define new work day objects as required
end

我可能有错误的方法名称）

在您的表单中，您会看到类似这样的内容：

<% f.fields_for :work_days do |work_day| %>
  <%= render :partial => "work_days/fields", :locals => { :f => work_day } %>
<% end %>

在该部分中，您将拥有工作日所需的一切。提交此表单后，参数应作为 params[:nest][:work_days] 发送到控制器，并使用模型上定义的 work_days= 方法，它应该像 accepts_nested_attributes_for 一样接受它们并创建它们。

Firstly I would write the work_days method like this:

def work_days
  WorkDay.where(:user_id => user_id, :company_id => company_id)
end

Next, accepts_nested_attributes_for is really only for real associations, and so I would define a method like this:

def work_days=(work_day_params)
  # iterate over work_day_params and define new work day objects as required
end

(I may have the method name wrong)

In your form you would have something like this:

<% f.fields_for :work_days do |work_day| %>
  <%= render :partial => "work_days/fields", :locals => { :f => work_day } %>
<% end %>

In that partial you would have whatever is necessary for a work day. Once this form is submitted the params should be sent through to the controller as params[:nest][:work_days] and with the work_days= method defined on your model, it should accept them and create them just like accepts_nested_attributes_for does.

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