Question

这是我的代码

来自index.html.erb

<%= form_for index_path, :method => "POST"  do %>
  <%= label_tag :name, "Enter your full name: " %>
  <%= text_field_tag :name, @name, :placeholder => "Enter your name" %><br/>

  <%= label_tag :email, "Enter your e-mail address: " %>
  <%= email_field_tag :email, @email, :placeholder => "something@domain.com" %><br/>
  <%= label_tag :question, "Type your question: " %>
  <%= text_area_tag :question, @question, :size => "30x5", :placeholder => "Your text goes here", :maxlength => "130" %><br/>




  <%= submit_tag "Ask Question" %>

来自Blog Controller

class BlogController < ApplicationController
  def index
    @name = params['name']
    @email = params['email']
    @question = params['question']
  end

  def about
  end

  def contact
  end
end

然后从seeds.rb：

Invitation.create(:name => "#{@name}", :email => "#{@email}", :question => "#{@question}")

当我填写所有字段并提交时，它在数据库中创建了空白记录，我在做什么错了？

Answer 1

您做错了。您无法访问seeds.rb内部控制器中定义的实例变量。相反，您只需要在index动作中创建记录

def index
  @name = params['name']
  @email = params['email']
  @question = params['question']
  Invitation.create(:name => @name, :email => @email, :question => @question)
end

seeds.rb用于创建具有默认值的记录以播种数据库。通常，这些值是硬编码的。

如何将输入从text_area_tag / email_field_tag连接到数据库？

1 个答案: