Ruby on rails Can';无法保存普通的多对一嵌套表单
我在轨道3上。我有一个型号为Ruby on rails Can';无法保存普通的多对一嵌套表单,ruby-on-rails,forms,ruby-on-rails-3,Ruby On Rails,Forms,Ruby On Rails 3,我在轨道3上。我有一个型号为的客户机,它有一个地址\u id。在我的Client表单中,我有嵌套的Address字段。以下是表单的地址部分: <%= f.fields_for @client.address do |address_form| %> <div class="field"> <%= address_form.label :line1 %><br /> <%= address_form.text
的客户机
,它有一个地址\u id
。在我的Client
表单中,我有嵌套的Address
字段。以下是表单的地址部分:
<%= f.fields_for @client.address do |address_form| %>
<div class="field">
<%= address_form.label :line1 %><br />
<%= address_form.text_field :line1 %>
</div>
<div class="field">
<%= address_form.label :line2 %><br />
<%= address_form.text_field :line2 %>
</div>
<div class="field">
<%= address_form.label :city %><br />
<%= address_form.text_field :city %>
</div>
<div class="field">
<%= address_form.label :state_id %><br />
<%= select("client[address]", "state_id", State.all.collect {|s| [ s.name, s.id ] }) %>
</div>
<div class="field">
<%= address_form.label :zip %><br />
<%= address_form.text_field :zip %>
</div>
<% end %>
我不明白这到底是什么意思,也不明白为什么我会得到它。以下是params.inspect
的外观:
{"commit"=>"Update Client",
"authenticity_token"=>"CBw1fQcsUtXs9x6lKTL4zeoekX1cwuFUrZvZpCShHIc=",
"_method"=>"put",
"utf8"=>"\342\234\223",
"action"=>"update",
"id"=>"16",
"client"=>{"name"=>"Rosie O'Donnell",
"address"=>{"city"=>"Grand Rapids",
"line1"=>"216 Grandville Ave SW",
"zip"=>"49503",
"line2"=>"",
"state_id"=>"1"},
"phone"=>"",
"salon_id"=>"1",
"email"=>""},
"controller"=>"clients"}
有人能告诉我发生了什么吗?请看这里:(这是一篇Rails 2.3文章,但也应该适用于Rails 3)
在您的客户机
模型中,您需要这一行:
接受:address的嵌套属性
另外,将嵌套表单的第一行更改为:
假设您的客户端类中包含以下内容:
accepts_nested_attributes_for :address
及
我将修改表格如下:
<%= f.fields_for :address do |address_form| %>
<div class="field">
<%= address_form.label :line1 %><br />
<%= address_form.text_field :line1 %>
</div>
<div class="field">
<%= address_form.label :line2 %><br />
<%= address_form.text_field :line2 %>
</div>
<div class="field">
<%= address_form.label :city %><br />
<%= address_form.text_field :city %>
</div>
<div class="field">
<%= address_form.label :state_id %><br />
<%= select("client[address]", "state_id", State.all.collect {|s| [ s.name, s.id ] }) %> </div>
<div class="field">
<%= address_form.label :zip %><br />
<%= address_form.text_field :zip %>
</div>
<% end %>
当我使用:address
而不是@client.address
时,:address
从何而来?Rails已经知道它有一个嵌套的:address
属性,并且由于您在client
表单中调用它,它知道将它分配给客户端。类似地,您的create
控制器方法不需要显式地创建地址记录——只需执行@client.save
即可为您保存地址记录。
attr_accessible :address_attributes
<%= f.fields_for :address do |address_form| %>
<div class="field">
<%= address_form.label :line1 %><br />
<%= address_form.text_field :line1 %>
</div>
<div class="field">
<%= address_form.label :line2 %><br />
<%= address_form.text_field :line2 %>
</div>
<div class="field">
<%= address_form.label :city %><br />
<%= address_form.text_field :city %>
</div>
<div class="field">
<%= address_form.label :state_id %><br />
<%= select("client[address]", "state_id", State.all.collect {|s| [ s.name, s.id ] }) %> </div>
<div class="field">
<%= address_form.label :zip %><br />
<%= address_form.text_field :zip %>
</div>
<% end %>