使用的是一个一对多关联,代码如下:view: partial
名称:<input type="text" name="invoice[][name]" />
描述:<input type="text" name="invoice[][description]" /><br/>
rhtml:
关键在于partial中文本框name属性的设置
名称:<input type="text" name="invoice[][name]" />
描述:<input type="text" name="invoice[][description]" /><br/>
rhtml:
<% form_tag "/purchase/save_order" do -%>
<p><label for="order_name">订单:</label><%= text_field :order, :name %></p>
<p>物 品: <%= link_to_remote "增加物品",
:update => 'mat',
:url => {:action => :add_field },
:position => 'bottom' %></p>
<div id="mat">
<%= render :partial => 'mat_input' %>
</div>
<p><%= submit_tag "提 交", :class => "submit" %></p>
controller:
def save_order
begin
@order = Order.new(params[:order])
total = params[:invoice].length
params[:invoice].each do |invoice|
@invoice = Invoice.new(invoice)
@order.invoices << @invoice
end
if request.post? and @order.save
flash[:notice] = "#{total}条物品记录已保存"
end
rescue
raise
end
redirect_to(:action => "index")
end
def add_field
render :partial => 'mat_input'
end
关键在于partial中文本框name属性的设置