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我想在我的表单上的参数前面添加一个字符串，这样当用户在表单上提交内容时，它会发布到外部 API，我的客户端可以登录到freshdesk.com，而不是说BOB，它会说Hello from BOB.

Hello from [:username]

在我看来，我试过这个：

= f.text_field "Hello From, #{:username}"

但它不起作用。我也尝试使用一个值：

= f.text_field :subject, value: "Hello From, #{:username}"

但这也不起作用。这是我的表格：

= form_for(:contacts, url: contacts_path) do |f|
  = f.error_messages
  = f.label :subject, "Name"
  %span{style: 'color: red'} *
  = f.text_field :subject, class: "text_field width_100_percent"
  %br
  %br    
  = f.label "Email"
  %span{style: 'color: red'} *
  %br    
  = f.email_field :email, class: "text_field width_100_percent"
  %br
  %br
  = f.label "Question(s), and/or feedback"
  %span{style: 'color: red'} *
  %br
  = f.text_area :description, class: "text_field width_100_percent", style: 'height: 100px;'
  %br
  %br
  = f.submit "Submit", class: 'btn btn-warning'

这是我的控制器：

def new
  @contacts = Form.new
end

def create
  @contacts = Form.new(params[:contacts])
  @contacts.post_tickets(params[:contacts])
  if @contacts.valid?
    flash[:success] = "Message sent! Thank you for conacting us."
    redirect_to new_contact_path
  else
    flash[:alert] = "Please fill in the required fields"
    render action: 'new'
  end
end

这是我的模型

class Form
  include ActiveModel::Validations
  include ActiveModel::Conversion
  include ActiveModel::Translation
  extend  ActiveModel::Naming

  attr_accessor :config, :client, :subject, :email, :custom_field_phone_number_28445, 
            :custom_field_name_28445, :custom_field_company_28445, :description, 
            :custom_field

  validates_presence_of :subject, :message => '^Please enter your name'
  validates_presence_of :description, :message => '^Question(s), and/or feedback can not be blank'
  validates :email, presence: true  
  validates_format_of :email, :with => /^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$/i

  def initialize(attributes = {})
    attributes.each do |name, value|
      @attributes = attributes
    end

    self.config = YAML.load_file("#{Rails.root}/config/fresh_desk.yml")[Rails.env]
  self.client = Freshdesk.new(config[:url], config[:api_key], config[:password])
    end

    def read_attribute_for_validation(key)
      @attributes[key]
    end

    def post_tickets(params)
      client.post_tickets(params)
    end

    def persisted?
      false
    end
   end
4

2 回答 2

2

你的视图应该有没有魔法的简单字段。我们将使用 Form 类来完成复杂的工作。

= f.text_field :subject

对 post_tickets 的方法调用不需要接收 ，params因为 Form 对象已经用这些params值进行了初始化。另外，我认为，除非对象有效，否则您不应该张贴票，对吗？

def create
  @contacts = Form.new(params[:contacts])
  if @contacts.valid?
    @contacts.post_tickets
    flash[:success] = "Message sent! Thank you for contacting us."
    redirect_to new_contact_path
  else
    flash[:alert] = "Please fill in the required fields"
    render action: 'new'
  end
end

您的 Form 模型应该负责修改 :subject 参数以包含前缀：

class Form
  # Some code omitted

  def initialize(attributes = {})
    attributes.each do |name, value|
      send("#{name}=", value)
    end
  end

  def post_tickets
    client.post_tickets({
      :whatever_fields => whatever_attribute, 
      :username => username, 
      :subject => "Hello from, #{subject}", 
      :email => email, 
      :description => description
    })
  end

end

这样，Form 对象具有用户提交的正确值，但是您已经覆盖了发布的主题，以便它将返回您想要的组合字符串，并带有“Hello from...”

在 post_tickets 中，通过初始化 Form 对象的属性直接引用您要发送的参数。在 的情况下subject，您将改为发送组合值。

请注意，我已经重写了您的初始化以使用更经典的属性设置方法。

想法，问题？

于 2013-09-11T17:25:40.780 回答
1

您应该在模型中执行此操作，方法是在值 que 表单发送给您之前添加您的子字符串。这似乎是业务逻辑，它不应该出现在视图中。

def post_tickets(params)
   client.username = "Hello From, " + client.username
   client.post_tickets(params)
end
于 2013-09-07T00:29:19.430 回答