我正在尝试在 Rails 中设置一个基本的联系表单,它不断抛出这个错误:
表单中的第一个参数不能包含 nil 或为空
Extracted source (around line #1):
<%= form_for contact do |f| %>
<div>
<%= f.label :name %><br/>
<%= f.text_field :name %>
这是我的代码。
我用这个渲染一个部分:
<%= render 'form', :contact => @contact %>
这是部分:
<%= form_for contact do |f| %>
<div>
<%= f.label :name %><br/>
<%= f.text_field :name %>
</div>
<div>
<%= f.label :email %><br/>
<%= f.text_field :email %>
</div>
<div>
<%= f.label :message %><br/>
<%= f.text_area :message %>
</div>
<div>
<%= f.submit "Send" %>
</div>
<% end %>
这是我的模型,contact.rb
class Contact
extend ActiveModel::Naming
include ActiveModel::Conversion
include ActiveModel::Validations
attr_accessor :name, :email, :message
validates :name,
:presence => true
validates :email,
:format => { :with => /\b[A-Z0-9._%a-z\-]+@(?:[A-Z0-9a-z\-]+\.)+[A-Za-z]{2,4}\z/ }
validates :message,
:length => { :minimum => 10, :maximum => 1000 }
def initialize(attributes = {})
attributes.each do |name, value|
send("#{name}=", value)
end
end
def deliver
return false unless valid?
true
end
def persisted?
false
end
end
我的控制器:
class ContactController < ApplicationController
def new
@contact = Contact.new
end
def create
@contact = Contact.new(params[:contact])
if @contact.deliver
flash.now[:error] = nil
flash.now[:notice] = "Thanks for contacting us! We'll get back to you within 24 hours!."
else
flash.now[:error] = "Hmm. We couldn't send your message. Double check that you filled in the whole form."
render :new
end
end
end
在此先感谢您的帮助!我已经搜遍了,到目前为止还没有解决这个问题......