Ruby on Rails -在某些字段上验证失败后丢失表单值

Question

我有一张表格

     <%= f.input :firstname, :label => "Forename", :input_html => { :placeholder => "Forename"} %>
     <%= f.input :surname, :label => "Surname", :input_html => { :placeholder => "Surname", :"data-

  <%= f.input :publiclyfundedteaching, :label => "Publicly funded teaching (PFT)", :input_html => {:style => 'width:7%', :id => "publiclyfundedteaching", :value => '0', :onkeyup => "myFunction()"} %>

  <%= f.input :non_publicly_funded_teaching, :label => "Non-Publicly Funded teaching (NPFT)", :input_html => {:style => 'width:7%', :id => "non_publicly_funded_teaching", :value => '0', :onkeyup => "myFunction()"} %>

和控制器

def create


@submission = Submission.new(submission_params)
@email = @submission.email
puts @email
if @submission.save
  flash[:notice] = 'Your user was successfully created.'
  
  else

@staffform = Form.find(10000)
   @livestatus = @staffform.status
   puts @staffform.status
   puts "not saved"

  puts @submission.errors.full_messages
render :new
  end

和型号：

validates :firstname, presence: true
validates :surname, presence: true
validates :email, presence: true


validates :total, numericality: { only_integer: true, equal_to: 100}


# First group

validates :publiclyfundedteaching, numericality: { only_integer: true }
validates :non_publicly_funded_teaching, numericality: { only_integer: true }
validates :support_for_teaching, numericality: { only_integer: true }

问题是:用于教学字段的problem teaching、non_publicly_funded_teaching和support_for_teaching在验证后不会保留这些值。电子邮件，姓氏和名字。

请告诉我如何解决这个问题。我猜这与这些字段的value属性有关？

非常感谢！

Answer 1

看看如何在:publiclyfundedteaching和:non_publicly_funded_teaching的表单字段中使用:value => '0' (您提到的第三个字段不在表单中)。即使您重新加载以前填写的表单，它们也会将字段中的值设置为0。您可以删除它或尝试添加一个if语句，如下所示(假设提交是模型)：

<%= f.input :publiclyfundedteaching, label: "Publicly funded teaching (PFT)", input_html: { style: 'width:7%', id: "publiclyfundedteaching", value: @submission.publiclyfundedteaching || 0, onkeyup: "myFunction()" } %>

Answer 2

在submission_params中，你可能有类似这样的东西：

def submission_params
  params.require(:your_model_name).permit(:firstname, :surname, :email)
end

这将删除任何其他字段，以保护它们不受客户端伪造数据的影响

如果希望字段为可写字段，请将其添加到允许