fields_for 不呈现关联名称（belongs_to 关系）
我正在尝试创建表单来创建事件。事件属于创建者（用户类），并且表单包括创建者的字段。
很大程度上，表单正在工作 - 它正确呈现其他所有内容，并且当 fields_for @event.creator 部分被注释掉时，创建操作可以正确处理它。不过， fields_for 标记正在呈现事件[用户]标记而不是事件[创建者]，我不明白为什么。有想法吗？以下是相关摘录。
（在views/events/new.html.erb中）
<%= form_for @event do |form| %>
<%= render :partial => '/events/form', :object => form %>
<%= form.submit 'Go!' %>
<% end %>
（在events/_form.html.erb中）
...
<% if !signed_in? %>
To create your event, please provide an email address and create a password. <br />
<%= form.fields_for @event.creator do |uf| %>
<div class="email_field">
<%= uf.label :email %>
<%= uf.text_field :email, :type => "email" %>
</div>
...
<% end %>
<% end %>
（controllers/events_controller.rb）
def new
@event = Event.new
if !signed_in?
@event.build_creator
end
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @event }
end
end
（models/event.rb）
belongs_to :creator, :class_name => "User"
accepts_nested_attributes_for :creator
很大程度上这是有效的，但是表单元素呈现为
<div class="email_field">
<label for="event_user_email">Email</label>
<input id="event_user_email" name="event[user][email]" size="30" type="email" />
</div>
<div class="password_field">
<label for="event_user_password">Password</label>
<input id="event_user_password" name="event[user][password]" size="30" type="password" />
</div>
...
这里的问题event_user 和 event[user] 而不是 event_creator 和 event[creator]；当我提交表单时，我收到错误消息，该事件没有用户字段。
I'm trying to create the form to create an event. Events belong_to a creator (of class user), and the form includes fields_for the creator.
Largely the form is working - it renders everything else properly, and the create action processes it properly when the fields_for @event.creator section is commented out. The fields_for tag is rendering event[user] tags instead of event[creator], though, and i can't figure out why. Ideas? Here are the relevant excerpts.
(in views/events/new.html.erb)
<%= form_for @event do |form| %>
<%= render :partial => '/events/form', :object => form %>
<%= form.submit 'Go!' %>
<% end %>
(in events/_form.html.erb)
...
<% if !signed_in? %>
To create your event, please provide an email address and create a password. <br />
<%= form.fields_for @event.creator do |uf| %>
<div class="email_field">
<%= uf.label :email %>
<%= uf.text_field :email, :type => "email" %>
</div>
...
<% end %>
<% end %>
(controllers/events_controller.rb)
def new
@event = Event.new
if !signed_in?
@event.build_creator
end
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @event }
end
end
(models/event.rb)
belongs_to :creator, :class_name => "User"
accepts_nested_attributes_for :creator
Largely this works, but the form elements render as
<div class="email_field">
<label for="event_user_email">Email</label>
<input id="event_user_email" name="event[user][email]" size="30" type="email" />
</div>
<div class="password_field">
<label for="event_user_password">Password</label>
<input id="event_user_password" name="event[user][password]" size="30" type="password" />
</div>
...
the issue here is event_user and event[user] instead of event_creator and event[creator]; when i submit the form i get an error that event doesn't have a User field.
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